Fixup user profiles display.

.goreleaser.yaml

@@ -73,17 +73,3 @@ dockers_v2:
     extra_files:
       - config.example.yaml
 
-brews:
-  - name: git-velocity
-    repository:
-      owner: lukaszraczylo
-      name: homebrew-tap
-      token: "{{ .Env.HOMEBREW_TAP_TOKEN }}"
-    directory: Formula
-    homepage: https://github.com/lukaszraczylo/git-velocity
-    description: "Developer velocity metrics analyzer with gamification dashboards"
-    license: MIT
-    install: |
-      bin.install "git-velocity"
-    test: |
-      system "#{bin}/git-velocity", "version"

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Lukasz Raczylo
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,5 +1,5 @@
 <p align="center">
-  <img src="docs/git-velocity-logo.png" alt="Git Velocity Logo" width="200"/>
+  <img src="docs/git-velocity-logo.png" alt="Git Velocity Logo" width="400"/>
 </p>
 
 <h1 align="center">Git Velocity</h1>
@@ -47,12 +47,16 @@ $ git-velocity serve --port 8080
 - **Pull Requests**: Opened, merged, closed, average size, time to merge
 - **Code Reviews**: Reviews given, comments, approvals, response time
 - **Issues**: Opened, closed, comments
+- **Meaningful Lines**: Filter out comments, whitespace, and documentation changes from line counts
 
 ### 🎮 Gamification Engine
 - **Scoring System**: Earn points for every contribution
-- **34 Achievements**: From "First Steps" to "Code Warrior"
+- **95 Achievements**: Tiered progression from "First Steps" to "Code Warrior"
 - **Leaderboards**: Compete with your team
-- **Tier Progression**: Bronze → Silver → Gold → Diamond
+- **Tier Progression**: Multiple tiers per achievement category
+- **Activity Patterns**: Track early bird, night owl, weekend, and out-of-hours commits
+- **Streak Tracking**: Daily streaks and work-week streaks (weekends don't break it!)
+- **General velocity chart**: Visualize your velocity over time
 
 ### 👥 Team Analytics
 - Configure teams and see aggregated metrics
@@ -63,7 +67,7 @@ $ git-velocity serve --port 8080
 - **Local Git Analysis**: Clone repos locally for 10x faster commit analysis
 - **Smart Caching**: File-based caching with configurable TTL
 - **Concurrent Requests**: Parallel API calls for faster data fetching
-- **Bot Filtering**: Automatically excludes Dependabot, Renovate, and other bots
+- **Bot Filtering**: Hardcoded patterns automatically exclude common bots (Dependabot, Renovate, GitHub Actions, etc.) with optional custom patterns
 
 ### 🎨 Beautiful Dashboard
 - Modern Vue.js SPA with dark/light mode
@@ -153,6 +157,11 @@ on:
     - cron: '0 0 * * 1'  # Weekly on Monday
   workflow_dispatch:      # Manual trigger
 
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
 jobs:
   analyze:
     runs-on: ubuntu-latest
@@ -161,22 +170,35 @@ jobs:
 
       - name: Run Git Velocity Analysis
         uses: lukaszraczylo/git-velocity@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           config_file: '.git-velocity.yaml'
           output_dir: './velocity-report'
 
+      # Fix permissions - Docker container runs as root
+      - name: Fix permissions
+        run: sudo chown -R $USER:$USER ./velocity-report
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-pages-artifact@v3
         with:
-          name: velocity-dashboard
           path: ./velocity-report
 
+  deploy:
+    runs-on: ubuntu-latest
+    needs: analyze
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
       - name: Deploy to GitHub Pages
-        uses: peaceiris/actions-gh-pages@v4
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_dir: ./velocity-report
+        id: deployment
+        uses: actions/deploy-pages@v4
 ```
 
 ### Action Inputs
@@ -194,58 +216,57 @@ jobs:
 |--------|-------------|
 | `output_dir` | Path to the generated dashboard |
 
-> **Note**: The action runs as a Docker container for fast execution. Use separate steps for artifact upload and GitHub Pages deployment as shown in the example above.
+> **Important**: The action runs as a Docker container. Note the following:
+> - Your config file **must** include the `auth` section with `github_token: "${GITHUB_TOKEN}"` - the action input does not automatically populate the config
+> - You must set the `GITHUB_TOKEN` environment variable on the action step (in addition to the `github_token` input)
+> - The "Fix permissions" step is required because the Docker container runs as root, which causes permission errors when uploading artifacts
 
 ## 🏆 Achievements
 
-Git Velocity includes 34 unlockable achievements:
+Git Velocity includes **95 hardcoded achievements** across 20 categories with multiple progression tiers. Achievements cannot be modified via configuration to prevent manipulation.
 
-### Commit Achievements
-| Achievement | Description | Threshold |
-|-------------|-------------|-----------|
-| 🍼 First Steps | Made your first commit | 1 commit |
-| 🌱 Getting Started | Made 10 commits | 10 commits |
-| 🔥 Committed | Made 100 commits | 100 commits |
-| 🤖 Code Machine | Made 500 commits | 500 commits |
-| 👑 Code Warrior | Made 1000 commits | 1000 commits |
+### Achievement Categories
 
-### Pull Request Achievements
-| Achievement | Description | Threshold |
-|-------------|-------------|-----------|
-| 🔀 PR Pioneer | Opened your first PR | 1 PR |
-| 🌿 Pull Request Pro | Opened 10 PRs | 10 PRs |
-| 🔀 Merge Master | Opened 50 PRs | 50 PRs |
+| Category | Tiers | Description |
+|----------|-------|-------------|
+| **Commits** | 1, 10, 50, 100, 500, 1000 | Track total commits made |
+| **PRs Opened** | 1, 10, 25, 50, 100, 250 | Track pull requests created |
+| **Reviews** | 1, 10, 25, 50, 100, 250 | Track code reviews performed |
+| **Comments** | 10, 50, 100, 250, 500 | Track PR review comments |
+| **Lines Added** | 100, 1K, 5K, 10K, 50K | Track code additions |
+| **Lines Deleted** | 100, 500, 1K, 5K, 10K | Track code cleanup |
+| **Review Time** | 24h, 4h, 1h | Fast review response times |
+| **Multi-Repo** | 2, 5, 10 | Contribution across repositories |
+| **Unique Reviewees** | 3, 10, 25 | Reviewing different contributors |
+| **Large PRs** | 500, 1K, 5K lines | Big changes merged |
+| **Small PRs** | 5, 10, 25, 50 | Atomic commits under 100 lines |
+| **Perfect PRs** | 1, 5, 10, 25 | Merged without changes requested |
+| **Active Days** | 7, 30, 60, 100 | Unique days with activity |
+| **Streaks** | 3, 7, 14, 30 days | Consecutive day contributions |
+| **Work Week Streak** | 3, 5, 10, 20 days | Weekday streaks (weekends don't break it!) |
+| **Early Bird** | 10, 25, 50, 100 | Commits before 9am |
+| **Night Owl** | 10, 25, 50, 100 | Commits after 9pm |
+| **Midnight** | 5, 10, 25, 50 | Commits between midnight-4am |
+| **Weekend** | 5, 10, 25, 50 | Weekend commits |
+| **Out of Hours** | 10, 25, 50, 100 | Commits outside 9am-5pm |
+| **Documentation** | 100, 500, 1K, 2.5K, 5K | Comment/doc lines added |
+| **Comment Cleanup** | 50, 200, 500, 1K, 2.5K | Outdated comments removed |
 
-### Review Achievements
-| Achievement | Description | Threshold |
-|-------------|-------------|-----------|
-| 🔍 Code Reviewer | Reviewed your first PR | 1 review |
-| 👁️ Review Regular | Reviewed 25 PRs | 25 reviews |
-| 🎓 Review Guru | Reviewed 100 PRs | 100 reviews |
+### Example Achievements
 
-### Speed Achievements
-| Achievement | Description | Threshold |
-|-------------|-------------|-----------|
-| ⚡ Speed Demon | Avg review response < 1 hour | < 1h |
-| ⏰ Quick Responder | Avg review response < 4 hours | < 4h |
-
-### Activity Pattern Achievements
-| Achievement | Description | Threshold |
-|-------------|-------------|-----------|
-| 📅 Week Warrior | 7 day contribution streak | 7 days |
-| 📆 Month Master | 30 day contribution streak | 30 days |
-| 🌅 Early Bird | 50 commits before 9am | 50 commits |
-| 🌙 Night Owl | 50 commits after 9pm | 50 commits |
-| 💀 Nosferatu | 25 commits between midnight-4am | 25 commits |
-| 🛋️ Weekend Warrior | 25 weekend commits | 25 commits |
-
-### Code Quality Achievements
-| Achievement | Description | Threshold |
-|-------------|-------------|-----------|
-| 🗜️ Small PR Advocate | 10 PRs under 100 lines | 10 PRs |
-| ⚛️ Atomic Commits Hero | 50 PRs under 100 lines | 50 PRs |
-| ✅ Clean Code | 5 PRs merged without changes requested | 5 PRs |
-| 💎 Flawless | 25 PRs merged without changes requested | 25 PRs |
+| Achievement | Description |
+|-------------|-------------|
+| 🍼 First Steps | Made your first commit |
+| 👑 Code Warrior | Made 1000 commits |
+| ⚡ Speed Demon | Average review response under 1 hour |
+| 💎 Flawless | 25 PRs merged without changes requested |
+| 🏢 Full Work Week | 5 consecutive weekday streak |
+| 🌙 Night Owl | 50 commits after 9pm |
+| ♾️ Time Bender | 100 commits outside 9am-5pm |
+| 📚 Documentation Hero | Added 1000 lines of comments/docs |
+| 🏛️ Code Historian | Added 5000 lines of comments/docs |
+| ✂️ Comment Trimmer | Removed 50 outdated comment lines |
+| 💀 Dead Code Hunter | Removed 500 outdated comment lines |
 
 ## ⚙️ Configuration
 
@@ -291,6 +312,7 @@ scoring:
     commit_with_tests: 15
     lines_added: 0.1
     lines_deleted: 0.05
+    use_meaningful_lines: true  # Exclude comments/whitespace from line scoring
     pr_opened: 25
     pr_merged: 50
     pr_reviewed: 30
@@ -300,6 +322,7 @@ scoring:
     fast_review_1h: 50
     fast_review_4h: 25
     fast_review_24h: 10
+    out_of_hours: 2  # Bonus per commit outside 9am-5pm
 
 output:
   directory: "./dist"
@@ -316,10 +339,10 @@ cache:
 options:
   concurrent_requests: 5
   include_bots: false
-  bot_patterns:
-    - "*[bot]"
-    - "dependabot*"
-    - "renovate*"
+  # Add custom bot patterns (hardcoded defaults always apply)
+  additional_bot_patterns:
+    - "my-org-bot"
+    - "jenkins*"
   use_local_git: true
   clone_directory: "./.repos"
   user_aliases:
@@ -344,6 +367,58 @@ options:
         - "JD"
 ```
 
+### Bot Filtering
+
+Bot filtering uses **hardcoded default patterns** that always apply when `include_bots: false`. These cannot be disabled to ensure consistent filtering:
+
+**Default Bot Patterns (always applied):**
+- `*[bot]` - GitHub App bots (dependabot[bot], renovate[bot], etc.)
+- `dependabot*` - Dependabot variants
+- `renovate*` - Renovate bot variants
+- `github-actions*` - GitHub Actions
+- `codecov*` - Codecov bot
+- `snyk*` - Snyk security bot
+- `greenkeeper*` - Greenkeeper (legacy)
+- `imgbot*` - Image optimization bot
+- `allcontributors*` - All Contributors bot
+- `semantic-release*` - Semantic release bot
+
+**Add custom patterns** for your organization's bots:
+
+```yaml
+options:
+  include_bots: false  # When false, hardcoded + additional patterns apply
+  additional_bot_patterns:
+    - "my-org-bot"     # Exact match
+    - "jenkins*"       # Prefix match
+    - "*-ci"           # Suffix match
+```
+
+### Meaningful Lines Filtering
+
+By default, Git Velocity filters out non-meaningful code changes when scoring line additions and deletions. This provides a more accurate measure of actual code contributions.
+
+**What's filtered out:**
+- **Comments**: Single-line (`//`, `#`, `--`), block (`/* */`, `<!-- -->`), docstrings (`"""`, `'''`)
+- **Whitespace**: Empty lines, whitespace-only lines
+- **Documentation files**: `.md`, `.rst`, `.txt`, `README`, `CHANGELOG`, `LICENSE`, files in `docs/` directories
+
+**Supported comment styles:**
+- C-style: `//`, `/* */`, `*` (block continuation)
+- Python/Shell: `#`, `"""`, `'''`
+- SQL/Lua/Haskell: `--`
+- Assembly/Lisp/INI: `;`
+- VB: `'`
+- HTML/XML: `<!-- -->`
+
+To disable this filtering and score raw line counts:
+
+```yaml
+scoring:
+  points:
+    use_meaningful_lines: false  # Score all lines including comments/whitespace
+```
+
 ### Environment Variables
 
 All configuration values support environment variable expansion:

action.yml

@@ -26,7 +26,7 @@ outputs:
     description: 'Path to the generated dashboard'
 runs:
   using: 'docker'
-  image: 'docker://ghcr.io/lukaszraczylo/git-velocity:latest'
+  image: 'docker://ghcr.io/lukaszraczylo/git-velocity:v1'
   args:
     - analyze
     - --config

config.example.yaml

@@ -89,6 +89,8 @@ scoring:
     commit_with_tests: 15
     lines_added: 0.1
     lines_deleted: 0.05
+    # Use meaningful lines (excludes comments/whitespace) for scoring
+    use_meaningful_lines: true
     pr_opened: 25
     pr_merged: 50
     pr_reviewed: 30
@@ -98,16 +100,10 @@ scoring:
     fast_review_1h: 50    # Review response under 1 hour
     fast_review_4h: 25    # Review response under 4 hours
     fast_review_24h: 10   # Review response under 24 hours
+    out_of_hours: 2       # Bonus per commit outside 9am-5pm
 
-  # Achievement badges (optional, uses defaults if not specified)
-  # achievements:
-  #   - id: "custom-achievement"
-  #     name: "Custom Badge"
-  #     description: "Earned for custom condition"
-  #     icon: "fa-star"
-  #     condition:
-  #       type: "commit_count"  # commit_count, pr_opened_count, review_count, etc.
-  #       threshold: 100
+  # Note: Achievements are hardcoded (93 achievements across 18 categories)
+  # They cannot be configured to prevent manipulation
 
 # Output configuration
 output:
@@ -129,8 +125,13 @@ cache:
 options:
   concurrent_requests: 5  # Max parallel API requests (1-20)
   include_bots: false     # Include bot accounts in metrics
-  bot_patterns:           # Patterns to identify bot accounts
-    - "*[bot]"
-    - "dependabot*"
-    - "renovate*"
-    - "github-actions*"
+
+  # Bot filtering uses hardcoded default patterns that always apply:
+  #   *[bot], dependabot*, renovate*, github-actions*, codecov*,
+  #   snyk*, greenkeeper*, imgbot*, allcontributors*, semantic-release*
+  #
+  # Add your own custom patterns here (in addition to defaults):
+  additional_bot_patterns: []
+    # - "my-org-bot"     # Exact match
+    # - "jenkins*"       # Prefix match
+    # - "*-ci"           # Suffix match

internal/aggregator/aggregator.go

@@ -137,6 +137,10 @@ func (a *Aggregator) Aggregate(data *models.RawData, dateRange *config.ParsedDat
 		cm.CommitCount++
 		cm.LinesAdded += commit.Additions
 		cm.LinesDeleted += commit.Deletions
+		cm.MeaningfulLinesAdded += commit.MeaningfulAdditions
+		cm.MeaningfulLinesDeleted += commit.MeaningfulDeletions
+		cm.CommentLinesAdded += commit.CommentAdditions
+		cm.CommentLinesDeleted += commit.CommentDeletions
 		cm.FilesChanged += commit.FilesChanged
 
 		// Update per-repo contributor stats
@@ -144,6 +148,10 @@ func (a *Aggregator) Aggregate(data *models.RawData, dateRange *config.ParsedDat
 		rcm.CommitCount++
 		rcm.LinesAdded += commit.Additions
 		rcm.LinesDeleted += commit.Deletions
+		rcm.MeaningfulLinesAdded += commit.MeaningfulAdditions
+		rcm.MeaningfulLinesDeleted += commit.MeaningfulDeletions
+		rcm.CommentLinesAdded += commit.CommentAdditions
+		rcm.CommentLinesDeleted += commit.CommentDeletions
 		rcm.FilesChanged += commit.FilesChanged
 
 		// Track activity patterns based on commit time
@@ -170,6 +178,11 @@ func (a *Aggregator) Aggregate(data *models.RawData, dateRange *config.ParsedDat
 			cm.WeekendWarrior++
 			rcm.WeekendWarrior++
 		}
+		// Out of hours: commits outside 9am-5pm (before 9am OR after 5pm)
+		if hour < 9 || hour >= 17 {
+			cm.OutOfHoursCount++
+			rcm.OutOfHoursCount++
+		}
 
 		// Track activity days (global)
 		if activityDays[login] == nil {
@@ -198,6 +211,8 @@ func (a *Aggregator) Aggregate(data *models.RawData, dateRange *config.ParsedDat
 		rm.TotalCommits++
 		rm.TotalLinesAdded += commit.Additions
 		rm.TotalLinesDeleted += commit.Deletions
+		rm.TotalMeaningfulLinesAdded += commit.MeaningfulAdditions
+		rm.TotalMeaningfulLinesDeleted += commit.MeaningfulDeletions
 	}
 
 	// Calculate active days and streaks for each contributor
@@ -205,6 +220,7 @@ func (a *Aggregator) Aggregate(data *models.RawData, dateRange *config.ParsedDat
 		if cm, ok := contributorMap[login]; ok {
 			cm.ActiveDays = len(days)
 			cm.LongestStreak, cm.CurrentStreak = calculateStreaks(days)
+			cm.WorkWeekStreak = calculateWorkWeekStreak(days)
 		}
 	}
 
@@ -440,6 +456,7 @@ func (a *Aggregator) Aggregate(data *models.RawData, dateRange *config.ParsedDat
 				if rcm, ok := repoContribs[login]; ok {
 					rcm.ActiveDays = len(days)
 					rcm.LongestStreak, rcm.CurrentStreak = calculateStreaks(days)
+					rcm.WorkWeekStreak = calculateWorkWeekStreak(days)
 				}
 			}
 		}
@@ -528,28 +545,34 @@ func (a *Aggregator) Aggregate(data *models.RawData, dateRange *config.ParsedDat
 
 	// Calculate totals
 	var totalCommits, totalPRs, totalReviews, totalLinesAdded, totalLinesDeleted int
+	var totalMeaningfulLinesAdded, totalMeaningfulLinesDeleted int
 	for _, rm := range repositories {
 		totalCommits += rm.TotalCommits
 		totalPRs += rm.TotalPRs
 		totalReviews += rm.TotalReviews
 		totalLinesAdded += rm.TotalLinesAdded
 		totalLinesDeleted += rm.TotalLinesDeleted
+		totalMeaningfulLinesAdded += rm.TotalMeaningfulLinesAdded
+		totalMeaningfulLinesDeleted += rm.TotalMeaningfulLinesDeleted
 	}
 
 	// Build velocity timeline (weekly aggregation)
 	velocityTimeline := buildVelocityTimeline(data, period, a.config.Scoring)
 
 	return &models.GlobalMetrics{
-		Period:            period,
-		Repositories:      repositories,
-		Teams:             teams,
-		TotalContributors: len(contributors),
-		TotalCommits:      totalCommits,
-		TotalPRs:          totalPRs,
-		TotalReviews:      totalReviews,
-		TotalLinesAdded:   totalLinesAdded,
-		TotalLinesDeleted: totalLinesDeleted,
-		VelocityTimeline:  velocityTimeline,
+		Period:                      period,
+		Repositories:                repositories,
+		Contributors:                contributors,
+		Teams:                       teams,
+		TotalContributors:           len(contributors),
+		TotalCommits:                totalCommits,
+		TotalPRs:                    totalPRs,
+		TotalReviews:                totalReviews,
+		TotalLinesAdded:             totalLinesAdded,
+		TotalLinesDeleted:           totalLinesDeleted,
+		TotalMeaningfulLinesAdded:   totalMeaningfulLinesAdded,
+		TotalMeaningfulLinesDeleted: totalMeaningfulLinesDeleted,
+		VelocityTimeline:            velocityTimeline,
 	}, nil
 }
 
@@ -1156,6 +1179,73 @@ func buildVelocityTimeline(data *models.RawData, period models.Period, scoringCo
 	}
 }
 
+// calculateWorkWeekStreak calculates the longest streak of consecutive weekdays
+// Weekends (Sat/Sun) don't break the streak - they're simply skipped
+func calculateWorkWeekStreak(days map[string]bool) int {
+	if len(days) == 0 {
+		return 0
+	}
+
+	// Convert to sorted slice of dates
+	dates := make([]time.Time, 0, len(days))
+	for dateStr := range days {
+		t, err := time.Parse("2006-01-02", dateStr)
+		if err == nil {
+			dates = append(dates, t)
+		}
+	}
+
+	if len(dates) == 0 {
+		return 0
+	}
+
+	// Sort dates
+	sort.Slice(dates, func(i, j int) bool {
+		return dates[i].Before(dates[j])
+	})
+
+	// Filter to only weekdays (Mon-Fri)
+	weekdays := make([]time.Time, 0, len(dates))
+	for _, d := range dates {
+		if d.Weekday() != time.Saturday && d.Weekday() != time.Sunday {
+			weekdays = append(weekdays, d)
+		}
+	}
+
+	if len(weekdays) == 0 {
+		return 0
+	}
+
+	// Calculate longest consecutive weekday streak
+	// Two weekdays are consecutive if there's no weekday between them
+	longest := 1
+	streak := 1
+
+	for i := 1; i < len(weekdays); i++ {
+		prev := weekdays[i-1]
+		curr := weekdays[i]
+
+		// Calculate expected next weekday
+		expectedNext := prev.AddDate(0, 0, 1)
+		// Skip over weekend days
+		for expectedNext.Weekday() == time.Saturday || expectedNext.Weekday() == time.Sunday {
+			expectedNext = expectedNext.AddDate(0, 0, 1)
+		}
+
+		// Check if current date matches expected next weekday
+		if curr.Year() == expectedNext.Year() && curr.YearDay() == expectedNext.YearDay() {
+			streak++
+			if streak > longest {
+				longest = streak
+			}
+		} else {
+			streak = 1
+		}
+	}
+
+	return longest
+}
+
 // calculateStreaks calculates the longest and current streak of consecutive days
 func calculateStreaks(days map[string]bool) (longest, current int) {
 	if len(days) == 0 {

internal/aggregator/aggregator_test.go

@@ -381,3 +381,498 @@ func TestParseRepoName(t *testing.T) {
 		assert.Equal(t, tt.expectedName, name, "name mismatch for %s", tt.fullName)
 	}
 }
+
+func TestSetUserProfiles(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.DefaultConfig()
+	agg := New(cfg)
+
+	profiles := map[string]UserProfile{
+		"user1": {Login: "user1", Email: "user1@example.com", Name: "User One", ID: 12345},
+		"user2": {Login: "user2", Email: "user2@example.com", Name: "User Two", ID: 67890},
+	}
+
+	agg.SetUserProfiles(profiles)
+	assert.Equal(t, profiles, agg.userProfiles)
+}
+
+func TestNormalizeForComparison(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		input    string
+		expected string
+	}{
+		{"John Doe", "johndoe"},
+		{"john-doe", "johndoe"},
+		{"john_doe", "johndoe"},
+		{"john.doe", "johndoe"},
+		{"JOHN DOE", "johndoe"},
+		{"John123Doe", "johndoe"},
+		{"123", ""},
+		{"", ""},
+		{"ABC xyz 123", "abcxyz"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.input, func(t *testing.T) {
+			result := normalizeForComparison(tt.input)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}
+
+func TestBuildEmailToLoginMapping_NoReplyEmails(t *testing.T) {
+	t.Parallel()
+
+	data := &models.RawData{
+		Commits: []models.Commit{
+			{
+				SHA:        "abc123",
+				Author:     models.Author{Login: "", Email: "12345+johndoe@users.noreply.github.com", Name: "John Doe"},
+				Repository: "owner/repo",
+			},
+		},
+		PullRequests: []models.PullRequest{
+			{
+				Number: 1,
+				Author: models.Author{Login: "johndoe", ID: 12345},
+			},
+		},
+	}
+
+	mapping := buildEmailToLoginMapping(data, nil)
+
+	// Should map via the ID
+	assert.Equal(t, "johndoe", mapping["12345+johndoe@users.noreply.github.com"])
+}
+
+func TestBuildEmailToLoginMapping_ProfileEmails(t *testing.T) {
+	t.Parallel()
+
+	data := &models.RawData{
+		Commits: []models.Commit{
+			{
+				SHA:        "abc123",
+				Author:     models.Author{Login: "", Email: "john@company.com", Name: "John Doe"},
+				Repository: "owner/repo",
+			},
+		},
+	}
+
+	profiles := map[string]UserProfile{
+		"johndoe": {Login: "johndoe", Email: "john@company.com", Name: "John Doe", ID: 12345},
+	}
+
+	mapping := buildEmailToLoginMapping(data, profiles)
+
+	// Should map via profile email
+	assert.Equal(t, "johndoe", mapping["john@company.com"])
+}
+
+func TestBuildEmailToLoginMapping_NameMatching(t *testing.T) {
+	t.Parallel()
+
+	data := &models.RawData{
+		Commits: []models.Commit{
+			{
+				SHA:        "abc123",
+				Author:     models.Author{Login: "", Email: "john@somewhere.com", Name: "John Doe"},
+				Repository: "owner/repo",
+			},
+		},
+		PullRequests: []models.PullRequest{
+			{
+				Number: 1,
+				Author: models.Author{Login: "johndoe", Name: "John Doe"},
+			},
+		},
+	}
+
+	mapping := buildEmailToLoginMapping(data, nil)
+
+	// Should map via name matching
+	assert.Equal(t, "johndoe", mapping["john@somewhere.com"])
+}
+
+func TestCalculateWorkWeekStreak(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name           string
+		dates          map[string]bool
+		expectedStreak int
+	}{
+		{
+			name:           "empty dates",
+			dates:          map[string]bool{},
+			expectedStreak: 0,
+		},
+		{
+			name: "single weekday",
+			dates: map[string]bool{
+				"2024-01-08": true, // Monday
+			},
+			expectedStreak: 1,
+		},
+		{
+			name: "consecutive weekdays",
+			dates: map[string]bool{
+				"2024-01-08": true, // Monday
+				"2024-01-09": true, // Tuesday
+				"2024-01-10": true, // Wednesday
+			},
+			expectedStreak: 3,
+		},
+		{
+			name: "weekdays with weekend gap",
+			dates: map[string]bool{
+				"2024-01-12": true, // Friday
+				"2024-01-15": true, // Monday
+				"2024-01-16": true, // Tuesday
+			},
+			expectedStreak: 3, // Weekend doesn't break streak
+		},
+		{
+			name: "broken streak on weekday",
+			dates: map[string]bool{
+				"2024-01-08": true, // Monday
+				"2024-01-10": true, // Wednesday (skipped Tuesday)
+			},
+			expectedStreak: 1,
+		},
+		{
+			name: "weekend only",
+			dates: map[string]bool{
+				"2024-01-13": true, // Saturday
+				"2024-01-14": true, // Sunday
+			},
+			expectedStreak: 0, // Weekends don't count
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := calculateWorkWeekStreak(tt.dates)
+			assert.Equal(t, tt.expectedStreak, result)
+		})
+	}
+}
+
+func TestCalculateWorkWeekStreak_LongestStreak(t *testing.T) {
+	t.Parallel()
+
+	// Multiple streaks - should return longest
+	dates := map[string]bool{
+		"2024-01-08": true, // Monday
+		"2024-01-09": true, // Tuesday
+		"2024-01-15": true, // Monday (gap - breaks streak)
+		"2024-01-16": true, // Tuesday
+		"2024-01-17": true, // Wednesday
+		"2024-01-18": true, // Thursday
+		"2024-01-19": true, // Friday
+		"2024-01-22": true, // Monday (weekend doesn't break)
+	}
+
+	result := calculateWorkWeekStreak(dates)
+	assert.Equal(t, 6, result) // Mon-Fri + Mon = 6 weekdays in a row
+}
+
+func TestAggregator_OutOfHoursTracking(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.DefaultConfig()
+	agg := New(cfg)
+
+	data := &models.RawData{
+		Commits: []models.Commit{
+			{
+				SHA:        "abc123",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 15, 7, 0, 0, 0, time.UTC), // 7am - before 9am
+				Repository: "owner/repo",
+			},
+			{
+				SHA:        "def456",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 15, 10, 0, 0, 0, time.UTC), // 10am - work hours
+				Repository: "owner/repo",
+			},
+			{
+				SHA:        "ghi789",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 15, 18, 0, 0, 0, time.UTC), // 6pm - after 5pm
+				Repository: "owner/repo",
+			},
+		},
+	}
+
+	dateRange := &config.ParsedDateRange{}
+
+	metrics, err := agg.Aggregate(data, dateRange)
+	require.NoError(t, err)
+
+	require.Len(t, metrics.Repositories, 1)
+	require.Len(t, metrics.Repositories[0].Contributors, 1)
+	contrib := metrics.Repositories[0].Contributors[0]
+	assert.Equal(t, 2, contrib.OutOfHoursCount) // 7am and 6pm are out of hours
+}
+
+func TestAggregator_WorkWeekStreakTracking(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.DefaultConfig()
+	agg := New(cfg)
+
+	data := &models.RawData{
+		Commits: []models.Commit{
+			{
+				SHA:        "abc123",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 8, 10, 0, 0, 0, time.UTC), // Monday
+				Repository: "owner/repo",
+			},
+			{
+				SHA:        "def456",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 9, 10, 0, 0, 0, time.UTC), // Tuesday
+				Repository: "owner/repo",
+			},
+			{
+				SHA:        "ghi789",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 10, 10, 0, 0, 0, time.UTC), // Wednesday
+				Repository: "owner/repo",
+			},
+		},
+	}
+
+	dateRange := &config.ParsedDateRange{}
+
+	metrics, err := agg.Aggregate(data, dateRange)
+	require.NoError(t, err)
+
+	require.Len(t, metrics.Repositories, 1)
+	require.Len(t, metrics.Repositories[0].Contributors, 1)
+	contrib := metrics.Repositories[0].Contributors[0]
+	assert.Equal(t, 3, contrib.WorkWeekStreak)
+}
+
+// Note: Bot filtering tests removed - bot filtering happens in app.go before data reaches aggregator
+// The aggregator receives already filtered data
+
+func TestAggregator_EarlyBirdTracking(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.DefaultConfig()
+	agg := New(cfg)
+
+	data := &models.RawData{
+		Commits: []models.Commit{
+			{
+				SHA:        "abc123",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 15, 6, 0, 0, 0, time.UTC), // 6am
+				Repository: "owner/repo",
+			},
+			{
+				SHA:        "def456",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 16, 8, 30, 0, 0, time.UTC), // 8:30am
+				Repository: "owner/repo",
+			},
+		},
+	}
+
+	dateRange := &config.ParsedDateRange{}
+
+	metrics, err := agg.Aggregate(data, dateRange)
+	require.NoError(t, err)
+
+	require.Len(t, metrics.Repositories, 1)
+	require.Len(t, metrics.Repositories[0].Contributors, 1)
+	contrib := metrics.Repositories[0].Contributors[0]
+	assert.Equal(t, 2, contrib.EarlyBirdCount) // Both before 9am
+}
+
+func TestAggregator_NightOwlTracking(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.DefaultConfig()
+	agg := New(cfg)
+
+	data := &models.RawData{
+		Commits: []models.Commit{
+			{
+				SHA:        "abc123",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 15, 21, 0, 0, 0, time.UTC), // 9pm
+				Repository: "owner/repo",
+			},
+			{
+				SHA:        "def456",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 16, 23, 30, 0, 0, time.UTC), // 11:30pm
+				Repository: "owner/repo",
+			},
+		},
+	}
+
+	dateRange := &config.ParsedDateRange{}
+
+	metrics, err := agg.Aggregate(data, dateRange)
+	require.NoError(t, err)
+
+	require.Len(t, metrics.Repositories, 1)
+	require.Len(t, metrics.Repositories[0].Contributors, 1)
+	contrib := metrics.Repositories[0].Contributors[0]
+	assert.Equal(t, 2, contrib.NightOwlCount) // Both after 9pm
+}
+
+func TestAggregator_MidnightTracking(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.DefaultConfig()
+	agg := New(cfg)
+
+	data := &models.RawData{
+		Commits: []models.Commit{
+			{
+				SHA:        "abc123",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 15, 0, 30, 0, 0, time.UTC), // 12:30am
+				Repository: "owner/repo",
+			},
+			{
+				SHA:        "def456",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 16, 3, 0, 0, 0, time.UTC), // 3am
+				Repository: "owner/repo",
+			},
+		},
+	}
+
+	dateRange := &config.ParsedDateRange{}
+
+	metrics, err := agg.Aggregate(data, dateRange)
+	require.NoError(t, err)
+
+	require.Len(t, metrics.Repositories, 1)
+	require.Len(t, metrics.Repositories[0].Contributors, 1)
+	contrib := metrics.Repositories[0].Contributors[0]
+	assert.Equal(t, 2, contrib.MidnightCount) // Both between 0-4am
+}
+
+func TestAggregator_WeekendWarriorTracking(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.DefaultConfig()
+	agg := New(cfg)
+
+	data := &models.RawData{
+		Commits: []models.Commit{
+			{
+				SHA:        "abc123",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 13, 10, 0, 0, 0, time.UTC), // Saturday
+				Repository: "owner/repo",
+			},
+			{
+				SHA:        "def456",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 14, 15, 0, 0, 0, time.UTC), // Sunday
+				Repository: "owner/repo",
+			},
+			{
+				SHA:        "ghi789",
+				Author:     models.Author{Login: "user1"},
+				Date:       time.Date(2024, 1, 15, 10, 0, 0, 0, time.UTC), // Monday (not weekend)
+				Repository: "owner/repo",
+			},
+		},
+	}
+
+	dateRange := &config.ParsedDateRange{}
+
+	metrics, err := agg.Aggregate(data, dateRange)
+	require.NoError(t, err)
+
+	require.Len(t, metrics.Repositories, 1)
+	require.Len(t, metrics.Repositories[0].Contributors, 1)
+	contrib := metrics.Repositories[0].Contributors[0]
+	assert.Equal(t, 2, contrib.WeekendWarrior) // Saturday and Sunday only
+}
+
+func TestAggregator_MultiRepoContributions(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.DefaultConfig()
+	agg := New(cfg)
+
+	data := &models.RawData{
+		Commits: []models.Commit{
+			{
+				SHA:        "abc123",
+				Author:     models.Author{Login: "user1"},
+				Repository: "owner/repo1",
+			},
+			{
+				SHA:        "def456",
+				Author:     models.Author{Login: "user1"},
+				Repository: "owner/repo2",
+			},
+			{
+				SHA:        "ghi789",
+				Author:     models.Author{Login: "user1"},
+				Repository: "owner/repo3",
+			},
+		},
+	}
+
+	dateRange := &config.ParsedDateRange{}
+
+	metrics, err := agg.Aggregate(data, dateRange)
+	require.NoError(t, err)
+
+	// MultiRepoCount is tracked in the global leaderboard entries, not repo contributors
+	// The leaderboard entry should show 3 repos for user1
+	require.Len(t, metrics.Repositories, 3)
+	assert.Equal(t, 1, metrics.TotalContributors)
+}
+
+func TestBuildEmailToLoginMapping_EmptyData(t *testing.T) {
+	t.Parallel()
+
+	data := &models.RawData{}
+	mapping := buildEmailToLoginMapping(data, nil)
+	assert.Empty(t, mapping)
+}
+
+func TestBuildEmailToLoginMapping_NoReplyEmailWithoutID(t *testing.T) {
+	t.Parallel()
+
+	// When the email is just "username@users.noreply.github.com" (without ID+),
+	// the mapping only happens if there's a matching PR author (via name matching later)
+	// The direct extraction only works for "ID+username@" format
+	data := &models.RawData{
+		Commits: []models.Commit{
+			{
+				SHA:        "abc123",
+				Author:     models.Author{Login: "", Email: "johndoe@users.noreply.github.com", Name: "John Doe"},
+				Repository: "owner/repo",
+			},
+		},
+		// Add a PR to enable name matching
+		PullRequests: []models.PullRequest{
+			{
+				Number: 1,
+				Author: models.Author{Login: "johndoe", Name: "John Doe"},
+			},
+		},
+	}
+
+	mapping := buildEmailToLoginMapping(data, nil)
+	// Should map via name matching since there's a PR author with the same name
+	assert.Equal(t, "johndoe", mapping["johndoe@users.noreply.github.com"])
+}

internal/config/config.go

@@ -192,19 +192,30 @@ func (c *Config) GetTeamForUser(username string) *TeamConfig {
 	return nil
 }
 
-// IsBot checks if a username matches bot patterns
+// IsBot checks if a username matches bot patterns (hardcoded defaults + user-defined)
 func (c *Config) IsBot(username string) bool {
 	if c.Options.IncludeBots {
 		return false
 	}
 
 	lower := strings.ToLower(username)
-	for _, pattern := range c.Options.BotPatterns {
+
+	// Check hardcoded default patterns first
+	for _, pattern := range DefaultBotPatterns() {
 		pattern = strings.ToLower(pattern)
 		if matchPattern(lower, pattern) {
 			return true
 		}
 	}
+
+	// Check user-defined additional patterns
+	for _, pattern := range c.Options.AdditionalBotPatterns {
+		pattern = strings.ToLower(pattern)
+		if matchPattern(lower, pattern) {
+			return true
+		}
+	}
+
 	return false
 }
 

internal/config/config_test.go

@@ -615,15 +615,10 @@ func TestConfig_GetTeamForUser(t *testing.T) {
 func TestConfig_IsBot(t *testing.T) {
 	t.Parallel()
 
+	// Bot patterns are now hardcoded, so we just need IncludeBots: false
 	cfg := &Config{
 		Options: OptionsConfig{
 			IncludeBots: false,
-			BotPatterns: []string{
-				"*[bot]",
-				"dependabot*",
-				"renovate*",
-				"github-actions*",
-			},
 		},
 	}
 
@@ -652,6 +647,16 @@ func TestConfig_IsBot(t *testing.T) {
 			username: "github-actions[bot]",
 			expected: true,
 		},
+		{
+			name:     "codecov bot (hardcoded)",
+			username: "codecov[bot]",
+			expected: true,
+		},
+		{
+			name:     "snyk bot (hardcoded)",
+			username: "snyk-bot",
+			expected: true,
+		},
 		{
 			name:     "regular user",
 			username: "alice",
@@ -674,19 +679,43 @@ func TestConfig_IsBot(t *testing.T) {
 	}
 }
 
+func TestConfig_IsBot_AdditionalPatterns(t *testing.T) {
+	t.Parallel()
+
+	cfg := &Config{
+		Options: OptionsConfig{
+			IncludeBots:           false,
+			AdditionalBotPatterns: []string{"my-custom-bot", "ci-*"},
+		},
+	}
+
+	// Custom patterns should work
+	assert.True(t, cfg.IsBot("my-custom-bot"))
+	assert.True(t, cfg.IsBot("ci-runner"))
+	assert.True(t, cfg.IsBot("ci-bot"))
+
+	// Hardcoded patterns should still work
+	assert.True(t, cfg.IsBot("dependabot[bot]"))
+	assert.True(t, cfg.IsBot("renovate[bot]"))
+
+	// Regular users should not match
+	assert.False(t, cfg.IsBot("alice"))
+}
+
 func TestConfig_IsBot_IncludeBots(t *testing.T) {
 	t.Parallel()
 
 	cfg := &Config{
 		Options: OptionsConfig{
 			IncludeBots: true,
-			BotPatterns: []string{"*[bot]"},
 		},
 	}
 
 	// When IncludeBots is true, nothing should be considered a bot
+	// (even hardcoded patterns are bypassed)
 	assert.False(t, cfg.IsBot("my-app[bot]"))
 	assert.False(t, cfg.IsBot("dependabot"))
+	assert.False(t, cfg.IsBot("renovate[bot]"))
 }
 
 func TestMatchPattern(t *testing.T) {
@@ -825,7 +854,7 @@ func TestDefaultConfig(t *testing.T) {
 	assert.True(t, cfg.Scoring.Enabled)
 	assert.Equal(t, 10, cfg.Scoring.Points.Commit)
 	assert.Equal(t, 50, cfg.Scoring.Points.PRMerged)
-	assert.NotEmpty(t, cfg.Scoring.Achievements)
+	assert.NotEmpty(t, cfg.Scoring.GetAchievements())
 	assert.Equal(t, "./dist", cfg.Output.Directory)
 	assert.True(t, cfg.Cache.Enabled)
 	assert.Equal(t, "./.cache", cfg.Cache.Directory)

internal/config/schema.go

@@ -63,9 +63,13 @@ type TeamConfig struct {
 
 // ScoringConfig holds gamification scoring configuration
 type ScoringConfig struct {
-	Enabled      bool                `yaml:"enabled"`
-	Points       PointsConfig        `yaml:"points"`
-	Achievements []AchievementConfig `yaml:"achievements,omitempty"`
+	Enabled bool         `yaml:"enabled"`
+	Points  PointsConfig `yaml:"points"`
+}
+
+// GetAchievements returns the hardcoded achievements (not configurable to prevent manipulation)
+func (s *ScoringConfig) GetAchievements() []AchievementConfig {
+	return defaultAchievements()
 }
 
 // PointsConfig defines point values for various activities
@@ -83,6 +87,11 @@ type PointsConfig struct {
 	FastReview1h    int     `yaml:"fast_review_1h"`
 	FastReview4h    int     `yaml:"fast_review_4h"`
 	FastReview24h   int     `yaml:"fast_review_24h"`
+	OutOfHours      int     `yaml:"out_of_hours"` // Bonus per commit outside 9am-5pm
+
+	// UseMeaningfulLines determines whether scoring uses meaningful lines (excluding comments/whitespace)
+	// or raw line counts. Default is true for more accurate contribution scoring.
+	UseMeaningfulLines bool `yaml:"use_meaningful_lines"`
 }
 
 // AchievementConfig defines an achievement badge
@@ -134,12 +143,29 @@ type CacheConfig struct {
 
 // OptionsConfig holds advanced options
 type OptionsConfig struct {
-	ConcurrentRequests int         `yaml:"concurrent_requests"`
-	IncludeBots        bool        `yaml:"include_bots"`
-	BotPatterns        []string    `yaml:"bot_patterns"`
-	CloneDirectory     string      `yaml:"clone_directory"`        // Directory for local git clones
-	UseLocalGit        bool        `yaml:"use_local_git"`          // Use local git for commits (faster)
-	UserAliases        []UserAlias `yaml:"user_aliases,omitempty"` // Manual email/name to login mappings
+	ConcurrentRequests    int         `yaml:"concurrent_requests"`
+	IncludeBots           bool        `yaml:"include_bots"`
+	AdditionalBotPatterns []string    `yaml:"additional_bot_patterns"` // User-defined patterns (added to hardcoded defaults)
+	CloneDirectory        string      `yaml:"clone_directory"`         // Directory for local git clones
+	UseLocalGit           bool        `yaml:"use_local_git"`           // Use local git for commits (faster)
+	UserAliases           []UserAlias `yaml:"user_aliases,omitempty"`  // Manual email/name to login mappings
+}
+
+// DefaultBotPatterns returns the hardcoded bot patterns that are always applied
+// These cannot be overridden by users to ensure consistent bot filtering
+func DefaultBotPatterns() []string {
+	return []string{
+		"*[bot]",            // GitHub App bots: dependabot[bot], renovate[bot], etc.
+		"dependabot*",       // Dependabot variants
+		"renovate*",         // Renovate bot variants
+		"github-actions*",   // GitHub Actions
+		"codecov*",          // Codecov bot
+		"snyk*",             // Snyk security bot
+		"greenkeeper*",      // Greenkeeper (legacy)
+		"imgbot*",           // Image optimization bot
+		"allcontributors*",  // All Contributors bot
+		"semantic-release*", // Semantic release bot
+	}
 }
 
 // UserAlias maps git emails or names to a GitHub login
@@ -163,21 +189,22 @@ func DefaultConfig() *Config {
 		Scoring: ScoringConfig{
 			Enabled: true,
 			Points: PointsConfig{
-				Commit:          10,
-				CommitWithTests: 15,
-				LinesAdded:      0.1,
-				LinesDeleted:    0.05,
-				PROpened:        25,
-				PRMerged:        50,
-				PRReviewed:      30,
-				ReviewComment:   5,
-				IssueOpened:     15,
-				IssueClosed:     20,
-				FastReview1h:    50,
-				FastReview4h:    25,
-				FastReview24h:   10,
+				Commit:             10,
+				CommitWithTests:    15,
+				LinesAdded:         0.1,
+				LinesDeleted:       0.05,
+				PROpened:           25,
+				PRMerged:           50,
+				PRReviewed:         30,
+				ReviewComment:      5,
+				IssueOpened:        15,
+				IssueClosed:        20,
+				FastReview1h:       50,
+				FastReview4h:       25,
+				FastReview24h:      10,
+				OutOfHours:         2,
+				UseMeaningfulLines: true, // Default to meaningful lines for accurate contribution scoring
 			},
-			Achievements: defaultAchievements(),
 		},
 		Output: OutputConfig{
 			Directory: "./dist",
@@ -193,262 +220,156 @@ func DefaultConfig() *Config {
 			TTL:       "24h",
 		},
 		Options: OptionsConfig{
-			ConcurrentRequests: 5,
-			IncludeBots:        false,
-			BotPatterns: []string{
-				"*[bot]",
-				"dependabot*",
-				"renovate*",
-				"github-actions*",
-			},
-			CloneDirectory: "./.repos",
-			UseLocalGit:    true, // Default to faster local git analysis
+			ConcurrentRequests:    5,
+			IncludeBots:           false,
+			AdditionalBotPatterns: []string{}, // Users can add custom patterns here
+			CloneDirectory:        "./.repos",
+			UseLocalGit:           true, // Default to faster local git analysis
 		},
 	}
 }
 
-// defaultAchievements returns the default achievement badges
+// defaultAchievements returns the hardcoded achievement badges with proper tiers
+// Achievements are not user-configurable to prevent manipulation
 func defaultAchievements() []AchievementConfig {
 	return []AchievementConfig{
-		{
-			ID:          "first-commit",
-			Name:        "First Steps",
-			Description: "Made your first commit",
-			Icon:        "fa-baby",
-			Condition:   AchievementCondition{Type: "commit_count", Threshold: 1},
-		},
-		{
-			ID:          "commit-10",
-			Name:        "Getting Started",
-			Description: "Made 10 commits",
-			Icon:        "fa-seedling",
-			Condition:   AchievementCondition{Type: "commit_count", Threshold: 10},
-		},
-		{
-			ID:          "commit-100",
-			Name:        "Committed",
-			Description: "Made 100 commits",
-			Icon:        "fa-fire",
-			Condition:   AchievementCondition{Type: "commit_count", Threshold: 100},
-		},
-		{
-			ID:          "commit-500",
-			Name:        "Code Machine",
-			Description: "Made 500 commits",
-			Icon:        "fa-robot",
-			Condition:   AchievementCondition{Type: "commit_count", Threshold: 500},
-		},
-		{
-			ID:          "commit-1000",
-			Name:        "Code Warrior",
-			Description: "Made 1000 commits",
-			Icon:        "fa-crown",
-			Condition:   AchievementCondition{Type: "commit_count", Threshold: 1000},
-		},
-		{
-			ID:          "pr-opener",
-			Name:        "PR Pioneer",
-			Description: "Opened your first pull request",
-			Icon:        "fa-code-pull-request",
-			Condition:   AchievementCondition{Type: "pr_opened_count", Threshold: 1},
-		},
-		{
-			ID:          "pr-10",
-			Name:        "Pull Request Pro",
-			Description: "Opened 10 pull requests",
-			Icon:        "fa-code-branch",
-			Condition:   AchievementCondition{Type: "pr_opened_count", Threshold: 10},
-		},
-		{
-			ID:          "pr-50",
-			Name:        "Merge Master",
-			Description: "Opened 50 pull requests",
-			Icon:        "fa-code-merge",
-			Condition:   AchievementCondition{Type: "pr_opened_count", Threshold: 50},
-		},
-		{
-			ID:          "reviewer",
-			Name:        "Code Reviewer",
-			Description: "Reviewed your first pull request",
-			Icon:        "fa-magnifying-glass-chart",
-			Condition:   AchievementCondition{Type: "review_count", Threshold: 1},
-		},
-		{
-			ID:          "reviewer-25",
-			Name:        "Review Regular",
-			Description: "Reviewed 25 pull requests",
-			Icon:        "fa-eye",
-			Condition:   AchievementCondition{Type: "review_count", Threshold: 25},
-		},
-		{
-			ID:          "reviewer-100",
-			Name:        "Review Guru",
-			Description: "Reviewed 100 pull requests",
-			Icon:        "fa-user-graduate",
-			Condition:   AchievementCondition{Type: "review_count", Threshold: 100},
-		},
-		{
-			ID:          "speed-demon",
-			Name:        "Speed Demon",
-			Description: "Average review response under 1 hour",
-			Icon:        "fa-bolt",
-			Condition:   AchievementCondition{Type: "avg_review_time_hours", Threshold: 1},
-		},
-		{
-			ID:          "quick-responder",
-			Name:        "Quick Responder",
-			Description: "Average review response under 4 hours",
-			Icon:        "fa-clock",
-			Condition:   AchievementCondition{Type: "avg_review_time_hours", Threshold: 4},
-		},
-		{
-			ID:          "commentator",
-			Name:        "Commentator",
-			Description: "Left 50 PR review comments",
-			Icon:        "fa-comments",
-			Condition:   AchievementCondition{Type: "comment_count", Threshold: 50},
-		},
-		{
-			ID:          "lines-1000",
-			Name:        "Thousand Lines",
-			Description: "Added 1000 lines of code",
-			Icon:        "fa-layer-group",
-			Condition:   AchievementCondition{Type: "lines_added", Threshold: 1000},
-		},
-		{
-			ID:          "lines-10000",
-			Name:        "Ten Thousand",
-			Description: "Added 10000 lines of code",
-			Icon:        "fa-mountain",
-			Condition:   AchievementCondition{Type: "lines_added", Threshold: 10000},
-		},
-		{
-			ID:          "cleaner",
-			Name:        "Code Cleaner",
-			Description: "Deleted 1000 lines of code",
-			Icon:        "fa-broom",
-			Condition:   AchievementCondition{Type: "lines_deleted", Threshold: 1000},
-		},
-		{
-			ID:          "refactorer",
-			Name:        "Refactoring Champion",
-			Description: "Deleted 10000 lines of code",
-			Icon:        "fa-recycle",
-			Condition:   AchievementCondition{Type: "lines_deleted", Threshold: 10000},
-		},
-		{
-			ID:          "multi-repo",
-			Name:        "Multi-Repo Master",
-			Description: "Contributed to 5 repositories",
-			Icon:        "fa-folder-tree",
-			Condition:   AchievementCondition{Type: "repo_count", Threshold: 5},
-		},
-		{
-			ID:          "team-player",
-			Name:        "Team Player",
-			Description: "Reviewed PRs from 10 different contributors",
-			Icon:        "fa-people-group",
-			Condition:   AchievementCondition{Type: "unique_reviewees", Threshold: 10},
-		},
-		// PR Quality achievements
-		{
-			ID:          "big-pr",
-			Name:        "Heavy Lifter",
-			Description: "Merged a PR with 1000+ lines changed",
-			Icon:        "fa-weight-hanging",
-			Condition:   AchievementCondition{Type: "largest_pr_size", Threshold: 1000},
-		},
-		{
-			ID:          "mega-pr",
-			Name:        "Mega Merge",
-			Description: "Merged a PR with 5000+ lines changed",
-			Icon:        "fa-dumbbell",
-			Condition:   AchievementCondition{Type: "largest_pr_size", Threshold: 5000},
-		},
-		{
-			ID:          "small-pr-10",
-			Name:        "Small PR Advocate",
-			Description: "Merged 10 PRs under 100 lines",
-			Icon:        "fa-compress",
-			Condition:   AchievementCondition{Type: "small_pr_count", Threshold: 10},
-		},
-		{
-			ID:          "small-pr-50",
-			Name:        "Atomic Commits Hero",
-			Description: "Merged 50 PRs under 100 lines",
-			Icon:        "fa-atom",
-			Condition:   AchievementCondition{Type: "small_pr_count", Threshold: 50},
-		},
-		{
-			ID:          "perfect-pr-5",
-			Name:        "Clean Code",
-			Description: "5 PRs merged without changes requested",
-			Icon:        "fa-check-double",
-			Condition:   AchievementCondition{Type: "perfect_prs", Threshold: 5},
-		},
-		{
-			ID:          "perfect-pr-25",
-			Name:        "Flawless",
-			Description: "25 PRs merged without changes requested",
-			Icon:        "fa-gem",
-			Condition:   AchievementCondition{Type: "perfect_prs", Threshold: 25},
-		},
-		// Activity pattern achievements
-		{
-			ID:          "streak-7",
-			Name:        "Week Warrior",
-			Description: "7 day contribution streak",
-			Icon:        "fa-calendar-week",
-			Condition:   AchievementCondition{Type: "longest_streak", Threshold: 7},
-		},
-		{
-			ID:          "streak-30",
-			Name:        "Month Master",
-			Description: "30 day contribution streak",
-			Icon:        "fa-calendar-check",
-			Condition:   AchievementCondition{Type: "longest_streak", Threshold: 30},
-		},
-		{
-			ID:          "early-bird",
-			Name:        "Early Bird",
-			Description: "50 commits before 9am",
-			Icon:        "fa-sun",
-			Condition:   AchievementCondition{Type: "early_bird_count", Threshold: 50},
-		},
-		{
-			ID:          "night-owl",
-			Name:        "Night Owl",
-			Description: "50 commits after 9pm",
-			Icon:        "fa-moon",
-			Condition:   AchievementCondition{Type: "night_owl_count", Threshold: 50},
-		},
-		{
-			ID:          "nosferatu",
-			Name:        "Nosferatu",
-			Description: "25 commits between midnight and 4am",
-			Icon:        "fa-skull",
-			Condition:   AchievementCondition{Type: "midnight_count", Threshold: 25},
-		},
-		{
-			ID:          "weekend-warrior",
-			Name:        "Weekend Warrior",
-			Description: "25 weekend commits",
-			Icon:        "fa-couch",
-			Condition:   AchievementCondition{Type: "weekend_warrior", Threshold: 25},
-		},
-		{
-			ID:          "active-30",
-			Name:        "Consistent Contributor",
-			Description: "Active on 30 different days",
-			Icon:        "fa-chart-line",
-			Condition:   AchievementCondition{Type: "active_days", Threshold: 30},
-		},
-		{
-			ID:          "active-100",
-			Name:        "Dedicated Developer",
-			Description: "Active on 100 different days",
-			Icon:        "fa-fire-flame-curved",
-			Condition:   AchievementCondition{Type: "active_days", Threshold: 100},
-		},
+		// ===== COMMIT COUNT (Tiers: 1, 10, 50, 100, 500, 1000) =====
+		{ID: "commit-1", Name: "First Steps", Description: "Made your first commit", Icon: "fa-baby", Condition: AchievementCondition{Type: "commit_count", Threshold: 1}},
+		{ID: "commit-10", Name: "Getting Started", Description: "Made 10 commits", Icon: "fa-seedling", Condition: AchievementCondition{Type: "commit_count", Threshold: 10}},
+		{ID: "commit-50", Name: "Contributor", Description: "Made 50 commits", Icon: "fa-code", Condition: AchievementCondition{Type: "commit_count", Threshold: 50}},
+		{ID: "commit-100", Name: "Committed", Description: "Made 100 commits", Icon: "fa-fire", Condition: AchievementCondition{Type: "commit_count", Threshold: 100}},
+		{ID: "commit-500", Name: "Code Machine", Description: "Made 500 commits", Icon: "fa-robot", Condition: AchievementCondition{Type: "commit_count", Threshold: 500}},
+		{ID: "commit-1000", Name: "Code Warrior", Description: "Made 1000 commits", Icon: "fa-crown", Condition: AchievementCondition{Type: "commit_count", Threshold: 1000}},
+
+		// ===== PR OPENED (Tiers: 1, 10, 25, 50, 100, 250) =====
+		{ID: "pr-1", Name: "PR Pioneer", Description: "Opened your first pull request", Icon: "fa-code-pull-request", Condition: AchievementCondition{Type: "pr_opened_count", Threshold: 1}},
+		{ID: "pr-10", Name: "PR Regular", Description: "Opened 10 pull requests", Icon: "fa-code-branch", Condition: AchievementCondition{Type: "pr_opened_count", Threshold: 10}},
+		{ID: "pr-25", Name: "PR Pro", Description: "Opened 25 pull requests", Icon: "fa-code-compare", Condition: AchievementCondition{Type: "pr_opened_count", Threshold: 25}},
+		{ID: "pr-50", Name: "Merge Master", Description: "Opened 50 pull requests", Icon: "fa-code-merge", Condition: AchievementCondition{Type: "pr_opened_count", Threshold: 50}},
+		{ID: "pr-100", Name: "PR Champion", Description: "Opened 100 pull requests", Icon: "fa-trophy", Condition: AchievementCondition{Type: "pr_opened_count", Threshold: 100}},
+		{ID: "pr-250", Name: "PR Legend", Description: "Opened 250 pull requests", Icon: "fa-medal", Condition: AchievementCondition{Type: "pr_opened_count", Threshold: 250}},
+
+		// ===== REVIEWS (Tiers: 1, 10, 25, 50, 100, 250) =====
+		{ID: "review-1", Name: "First Review", Description: "Reviewed your first pull request", Icon: "fa-magnifying-glass", Condition: AchievementCondition{Type: "review_count", Threshold: 1}},
+		{ID: "review-10", Name: "Reviewer", Description: "Reviewed 10 pull requests", Icon: "fa-eye", Condition: AchievementCondition{Type: "review_count", Threshold: 10}},
+		{ID: "review-25", Name: "Review Regular", Description: "Reviewed 25 pull requests", Icon: "fa-glasses", Condition: AchievementCondition{Type: "review_count", Threshold: 25}},
+		{ID: "review-50", Name: "Review Expert", Description: "Reviewed 50 pull requests", Icon: "fa-user-check", Condition: AchievementCondition{Type: "review_count", Threshold: 50}},
+		{ID: "review-100", Name: "Review Guru", Description: "Reviewed 100 pull requests", Icon: "fa-user-graduate", Condition: AchievementCondition{Type: "review_count", Threshold: 100}},
+		{ID: "review-250", Name: "Review Master", Description: "Reviewed 250 pull requests", Icon: "fa-award", Condition: AchievementCondition{Type: "review_count", Threshold: 250}},
+
+		// ===== REVIEW COMMENTS (Tiers: 10, 50, 100, 250, 500) =====
+		{ID: "comment-10", Name: "Commentator", Description: "Left 10 PR review comments", Icon: "fa-comment", Condition: AchievementCondition{Type: "comment_count", Threshold: 10}},
+		{ID: "comment-50", Name: "Feedback Giver", Description: "Left 50 PR review comments", Icon: "fa-comments", Condition: AchievementCondition{Type: "comment_count", Threshold: 50}},
+		{ID: "comment-100", Name: "Code Critic", Description: "Left 100 PR review comments", Icon: "fa-comment-dots", Condition: AchievementCondition{Type: "comment_count", Threshold: 100}},
+		{ID: "comment-250", Name: "Feedback Expert", Description: "Left 250 PR review comments", Icon: "fa-message", Condition: AchievementCondition{Type: "comment_count", Threshold: 250}},
+		{ID: "comment-500", Name: "Comment Champion", Description: "Left 500 PR review comments", Icon: "fa-scroll", Condition: AchievementCondition{Type: "comment_count", Threshold: 500}},
+
+		// ===== LINES ADDED (Tiers: 100, 1000, 5000, 10000, 50000) =====
+		{ID: "lines-added-100", Name: "First Hundred", Description: "Added 100 lines of code", Icon: "fa-plus", Condition: AchievementCondition{Type: "lines_added", Threshold: 100}},
+		{ID: "lines-added-1000", Name: "Thousand Lines", Description: "Added 1000 lines of code", Icon: "fa-layer-group", Condition: AchievementCondition{Type: "lines_added", Threshold: 1000}},
+		{ID: "lines-added-5000", Name: "Five Thousand", Description: "Added 5000 lines of code", Icon: "fa-cubes", Condition: AchievementCondition{Type: "lines_added", Threshold: 5000}},
+		{ID: "lines-added-10000", Name: "Ten Thousand", Description: "Added 10000 lines of code", Icon: "fa-mountain", Condition: AchievementCondition{Type: "lines_added", Threshold: 10000}},
+		{ID: "lines-added-50000", Name: "Code Mountain", Description: "Added 50000 lines of code", Icon: "fa-mountain-sun", Condition: AchievementCondition{Type: "lines_added", Threshold: 50000}},
+
+		// ===== LINES DELETED (Tiers: 100, 500, 1000, 5000, 10000) =====
+		{ID: "lines-deleted-100", Name: "Tidying Up", Description: "Deleted 100 lines of code", Icon: "fa-eraser", Condition: AchievementCondition{Type: "lines_deleted", Threshold: 100}},
+		{ID: "lines-deleted-500", Name: "Spring Cleaning", Description: "Deleted 500 lines of code", Icon: "fa-broom", Condition: AchievementCondition{Type: "lines_deleted", Threshold: 500}},
+		{ID: "lines-deleted-1000", Name: "Code Cleaner", Description: "Deleted 1000 lines of code", Icon: "fa-trash-can", Condition: AchievementCondition{Type: "lines_deleted", Threshold: 1000}},
+		{ID: "lines-deleted-5000", Name: "Refactoring Hero", Description: "Deleted 5000 lines of code", Icon: "fa-recycle", Condition: AchievementCondition{Type: "lines_deleted", Threshold: 5000}},
+		{ID: "lines-deleted-10000", Name: "Deletion Master", Description: "Deleted 10000 lines of code", Icon: "fa-dumpster-fire", Condition: AchievementCondition{Type: "lines_deleted", Threshold: 10000}},
+
+		// ===== REVIEW RESPONSE TIME (Tiers: 24h, 4h, 1h - lower is better) =====
+		{ID: "review-time-24h", Name: "Same Day Reviewer", Description: "Average review response under 24 hours", Icon: "fa-clock", Condition: AchievementCondition{Type: "avg_review_time_hours", Threshold: 24}},
+		{ID: "review-time-4h", Name: "Quick Responder", Description: "Average review response under 4 hours", Icon: "fa-stopwatch", Condition: AchievementCondition{Type: "avg_review_time_hours", Threshold: 4}},
+		{ID: "review-time-1h", Name: "Speed Demon", Description: "Average review response under 1 hour", Icon: "fa-bolt", Condition: AchievementCondition{Type: "avg_review_time_hours", Threshold: 1}},
+
+		// ===== MULTI-REPO (Tiers: 2, 5, 10) =====
+		{ID: "repo-2", Name: "Multi-Repo", Description: "Contributed to 2 repositories", Icon: "fa-folder", Condition: AchievementCondition{Type: "repo_count", Threshold: 2}},
+		{ID: "repo-5", Name: "Repo Explorer", Description: "Contributed to 5 repositories", Icon: "fa-folder-tree", Condition: AchievementCondition{Type: "repo_count", Threshold: 5}},
+		{ID: "repo-10", Name: "Repo Master", Description: "Contributed to 10 repositories", Icon: "fa-network-wired", Condition: AchievementCondition{Type: "repo_count", Threshold: 10}},
+
+		// ===== UNIQUE REVIEWEES (Tiers: 3, 10, 25) =====
+		{ID: "reviewees-3", Name: "Helpful Colleague", Description: "Reviewed PRs from 3 different contributors", Icon: "fa-user-group", Condition: AchievementCondition{Type: "unique_reviewees", Threshold: 3}},
+		{ID: "reviewees-10", Name: "Team Player", Description: "Reviewed PRs from 10 different contributors", Icon: "fa-people-group", Condition: AchievementCondition{Type: "unique_reviewees", Threshold: 10}},
+		{ID: "reviewees-25", Name: "Community Pillar", Description: "Reviewed PRs from 25 different contributors", Icon: "fa-people-roof", Condition: AchievementCondition{Type: "unique_reviewees", Threshold: 25}},
+
+		// ===== PR SIZE - LARGE (Tiers: 500, 1000, 5000) =====
+		{ID: "large-pr-500", Name: "Big Change", Description: "Merged a PR with 500+ lines changed", Icon: "fa-expand", Condition: AchievementCondition{Type: "largest_pr_size", Threshold: 500}},
+		{ID: "large-pr-1000", Name: "Heavy Lifter", Description: "Merged a PR with 1000+ lines changed", Icon: "fa-weight-hanging", Condition: AchievementCondition{Type: "largest_pr_size", Threshold: 1000}},
+		{ID: "large-pr-5000", Name: "Mega Merge", Description: "Merged a PR with 5000+ lines changed", Icon: "fa-dumbbell", Condition: AchievementCondition{Type: "largest_pr_size", Threshold: 5000}},
+
+		// ===== SMALL PRs (Tiers: 5, 10, 25, 50) =====
+		{ID: "small-pr-5", Name: "Small Changes", Description: "Merged 5 PRs under 100 lines", Icon: "fa-compress", Condition: AchievementCondition{Type: "small_pr_count", Threshold: 5}},
+		{ID: "small-pr-10", Name: "Small PR Advocate", Description: "Merged 10 PRs under 100 lines", Icon: "fa-minimize", Condition: AchievementCondition{Type: "small_pr_count", Threshold: 10}},
+		{ID: "small-pr-25", Name: "Atomic Commits", Description: "Merged 25 PRs under 100 lines", Icon: "fa-atom", Condition: AchievementCondition{Type: "small_pr_count", Threshold: 25}},
+		{ID: "small-pr-50", Name: "Micro PR Master", Description: "Merged 50 PRs under 100 lines", Icon: "fa-microchip", Condition: AchievementCondition{Type: "small_pr_count", Threshold: 50}},
+
+		// ===== PERFECT PRs (Tiers: 1, 5, 10, 25) =====
+		{ID: "perfect-pr-1", Name: "First Try", Description: "1 PR merged without changes requested", Icon: "fa-check", Condition: AchievementCondition{Type: "perfect_prs", Threshold: 1}},
+		{ID: "perfect-pr-5", Name: "Clean Code", Description: "5 PRs merged without changes requested", Icon: "fa-check-double", Condition: AchievementCondition{Type: "perfect_prs", Threshold: 5}},
+		{ID: "perfect-pr-10", Name: "Quality Author", Description: "10 PRs merged without changes requested", Icon: "fa-circle-check", Condition: AchievementCondition{Type: "perfect_prs", Threshold: 10}},
+		{ID: "perfect-pr-25", Name: "Flawless", Description: "25 PRs merged without changes requested", Icon: "fa-gem", Condition: AchievementCondition{Type: "perfect_prs", Threshold: 25}},
+
+		// ===== ACTIVE DAYS (Tiers: 7, 30, 60, 100) =====
+		{ID: "active-7", Name: "Week Active", Description: "Active on 7 different days", Icon: "fa-calendar-day", Condition: AchievementCondition{Type: "active_days", Threshold: 7}},
+		{ID: "active-30", Name: "Month Active", Description: "Active on 30 different days", Icon: "fa-calendar-week", Condition: AchievementCondition{Type: "active_days", Threshold: 30}},
+		{ID: "active-60", Name: "Consistent Contributor", Description: "Active on 60 different days", Icon: "fa-chart-line", Condition: AchievementCondition{Type: "active_days", Threshold: 60}},
+		{ID: "active-100", Name: "Dedicated Developer", Description: "Active on 100 different days", Icon: "fa-fire-flame-curved", Condition: AchievementCondition{Type: "active_days", Threshold: 100}},
+
+		// ===== LONGEST STREAK (Tiers: 3, 7, 14, 30) =====
+		{ID: "streak-3", Name: "Getting Rolling", Description: "3 day contribution streak", Icon: "fa-forward", Condition: AchievementCondition{Type: "longest_streak", Threshold: 3}},
+		{ID: "streak-7", Name: "Week Warrior", Description: "7 day contribution streak", Icon: "fa-calendar-week", Condition: AchievementCondition{Type: "longest_streak", Threshold: 7}},
+		{ID: "streak-14", Name: "Two Week Streak", Description: "14 day contribution streak", Icon: "fa-fire", Condition: AchievementCondition{Type: "longest_streak", Threshold: 14}},
+		{ID: "streak-30", Name: "Month Master", Description: "30 day contribution streak", Icon: "fa-calendar-check", Condition: AchievementCondition{Type: "longest_streak", Threshold: 30}},
+
+		// ===== WORK WEEK STREAK (Tiers: 3, 5, 10, 20) =====
+		{ID: "workweek-3", Name: "Work Week Start", Description: "3 consecutive weekday streak", Icon: "fa-briefcase", Condition: AchievementCondition{Type: "work_week_streak", Threshold: 3}},
+		{ID: "workweek-5", Name: "Full Work Week", Description: "5 consecutive weekday streak", Icon: "fa-building", Condition: AchievementCondition{Type: "work_week_streak", Threshold: 5}},
+		{ID: "workweek-10", Name: "Two Week Grind", Description: "10 consecutive weekday streak", Icon: "fa-business-time", Condition: AchievementCondition{Type: "work_week_streak", Threshold: 10}},
+		{ID: "workweek-20", Name: "Month of Mondays", Description: "20 consecutive weekday streak", Icon: "fa-landmark", Condition: AchievementCondition{Type: "work_week_streak", Threshold: 20}},
+
+		// ===== EARLY BIRD (Tiers: 10, 25, 50, 100) =====
+		{ID: "earlybird-10", Name: "Early Riser", Description: "10 commits before 9am", Icon: "fa-mug-hot", Condition: AchievementCondition{Type: "early_bird_count", Threshold: 10}},
+		{ID: "earlybird-25", Name: "Morning Person", Description: "25 commits before 9am", Icon: "fa-cloud-sun", Condition: AchievementCondition{Type: "early_bird_count", Threshold: 25}},
+		{ID: "earlybird-50", Name: "Early Bird", Description: "50 commits before 9am", Icon: "fa-sun", Condition: AchievementCondition{Type: "early_bird_count", Threshold: 50}},
+		{ID: "earlybird-100", Name: "Dawn Warrior", Description: "100 commits before 9am", Icon: "fa-sunrise", Condition: AchievementCondition{Type: "early_bird_count", Threshold: 100}},
+
+		// ===== NIGHT OWL (Tiers: 10, 25, 50, 100) =====
+		{ID: "nightowl-10", Name: "Late Worker", Description: "10 commits after 9pm", Icon: "fa-cloud-moon", Condition: AchievementCondition{Type: "night_owl_count", Threshold: 10}},
+		{ID: "nightowl-25", Name: "Evening Coder", Description: "25 commits after 9pm", Icon: "fa-moon", Condition: AchievementCondition{Type: "night_owl_count", Threshold: 25}},
+		{ID: "nightowl-50", Name: "Night Owl", Description: "50 commits after 9pm", Icon: "fa-star", Condition: AchievementCondition{Type: "night_owl_count", Threshold: 50}},
+		{ID: "nightowl-100", Name: "Nocturnal", Description: "100 commits after 9pm", Icon: "fa-star-and-crescent", Condition: AchievementCondition{Type: "night_owl_count", Threshold: 100}},
+
+		// ===== MIDNIGHT CODER (Tiers: 5, 10, 25, 50) =====
+		{ID: "midnight-5", Name: "Night Shift", Description: "5 commits between midnight and 4am", Icon: "fa-ghost", Condition: AchievementCondition{Type: "midnight_count", Threshold: 5}},
+		{ID: "midnight-10", Name: "Insomniac", Description: "10 commits between midnight and 4am", Icon: "fa-bed", Condition: AchievementCondition{Type: "midnight_count", Threshold: 10}},
+		{ID: "midnight-25", Name: "Nosferatu", Description: "25 commits between midnight and 4am", Icon: "fa-skull", Condition: AchievementCondition{Type: "midnight_count", Threshold: 25}},
+		{ID: "midnight-50", Name: "Vampire Coder", Description: "50 commits between midnight and 4am", Icon: "fa-skull-crossbones", Condition: AchievementCondition{Type: "midnight_count", Threshold: 50}},
+
+		// ===== WEEKEND WARRIOR (Tiers: 5, 10, 25, 50) =====
+		{ID: "weekend-5", Name: "Weekend Work", Description: "5 weekend commits", Icon: "fa-couch", Condition: AchievementCondition{Type: "weekend_warrior", Threshold: 5}},
+		{ID: "weekend-10", Name: "Weekend Regular", Description: "10 weekend commits", Icon: "fa-house-laptop", Condition: AchievementCondition{Type: "weekend_warrior", Threshold: 10}},
+		{ID: "weekend-25", Name: "Weekend Warrior", Description: "25 weekend commits", Icon: "fa-gamepad", Condition: AchievementCondition{Type: "weekend_warrior", Threshold: 25}},
+		{ID: "weekend-50", Name: "No Days Off", Description: "50 weekend commits", Icon: "fa-person-running", Condition: AchievementCondition{Type: "weekend_warrior", Threshold: 50}},
+
+		// ===== OUT OF HOURS (Tiers: 10, 25, 50, 100) =====
+		{ID: "ooh-10", Name: "Extra Hours", Description: "10 commits outside 9am-5pm", Icon: "fa-clock-rotate-left", Condition: AchievementCondition{Type: "out_of_hours_count", Threshold: 10}},
+		{ID: "ooh-25", Name: "Flexible Schedule", Description: "25 commits outside 9am-5pm", Icon: "fa-user-clock", Condition: AchievementCondition{Type: "out_of_hours_count", Threshold: 25}},
+		{ID: "ooh-50", Name: "Off-Hours Hero", Description: "50 commits outside 9am-5pm", Icon: "fa-hourglass-half", Condition: AchievementCondition{Type: "out_of_hours_count", Threshold: 50}},
+		{ID: "ooh-100", Name: "Time Bender", Description: "100 commits outside 9am-5pm", Icon: "fa-infinity", Condition: AchievementCondition{Type: "out_of_hours_count", Threshold: 100}},
+
+		// ===== DOCUMENTATION & COMMENTS ADDED (Tiers: 100, 500, 1000, 2500, 5000) =====
+		{ID: "docs-100", Name: "Documenter", Description: "Added 100 lines of comments/docs", Icon: "fa-file-lines", Condition: AchievementCondition{Type: "comment_lines_added", Threshold: 100}},
+		{ID: "docs-500", Name: "Technical Writer", Description: "Added 500 lines of comments/docs", Icon: "fa-book", Condition: AchievementCondition{Type: "comment_lines_added", Threshold: 500}},
+		{ID: "docs-1000", Name: "Documentation Hero", Description: "Added 1000 lines of comments/docs", Icon: "fa-book-open", Condition: AchievementCondition{Type: "comment_lines_added", Threshold: 1000}},
+		{ID: "docs-2500", Name: "Knowledge Keeper", Description: "Added 2500 lines of comments/docs", Icon: "fa-scroll", Condition: AchievementCondition{Type: "comment_lines_added", Threshold: 2500}},
+		{ID: "docs-5000", Name: "Code Historian", Description: "Added 5000 lines of comments/docs", Icon: "fa-landmark", Condition: AchievementCondition{Type: "comment_lines_added", Threshold: 5000}},
+
+		// ===== COMMENT CLEANUP (Tiers: 50, 200, 500, 1000, 2500) =====
+		{ID: "docs-del-50", Name: "Comment Trimmer", Description: "Removed 50 lines of outdated comments", Icon: "fa-scissors", Condition: AchievementCondition{Type: "comment_lines_deleted", Threshold: 50}},
+		{ID: "docs-del-200", Name: "Cleanup Crew", Description: "Removed 200 lines of outdated comments", Icon: "fa-broom", Condition: AchievementCondition{Type: "comment_lines_deleted", Threshold: 200}},
+		{ID: "docs-del-500", Name: "Dead Code Hunter", Description: "Removed 500 lines of outdated comments", Icon: "fa-skull-crossbones", Condition: AchievementCondition{Type: "comment_lines_deleted", Threshold: 500}},
+		{ID: "docs-del-1000", Name: "Comment Surgeon", Description: "Removed 1000 lines of outdated comments", Icon: "fa-scalpel", Condition: AchievementCondition{Type: "comment_lines_deleted", Threshold: 1000}},
+		{ID: "docs-del-2500", Name: "Noise Eliminator", Description: "Removed 2500 lines of outdated comments", Icon: "fa-volume-xmark", Condition: AchievementCondition{Type: "comment_lines_deleted", Threshold: 2500}},
 	}
 }

internal/config/validation.go

@@ -117,60 +117,7 @@ func Validate(cfg *Config) error {
 		// Additional point validations can be added here
 	}
 
-	// Validate achievements
-	achievementIDs := make(map[string]bool)
-	for i, achievement := range cfg.Scoring.Achievements {
-		if achievement.ID == "" {
-			errs = append(errs, ValidationError{
-				Field:   fmt.Sprintf("scoring.achievements[%d].id", i),
-				Message: "achievement ID is required",
-			})
-		}
-		if achievementIDs[achievement.ID] {
-			errs = append(errs, ValidationError{
-				Field:   fmt.Sprintf("scoring.achievements[%d].id", i),
-				Message: fmt.Sprintf("duplicate achievement ID: %s", achievement.ID),
-			})
-		}
-		achievementIDs[achievement.ID] = true
-
-		if achievement.Name == "" {
-			errs = append(errs, ValidationError{
-				Field:   fmt.Sprintf("scoring.achievements[%d].name", i),
-				Message: "achievement name is required",
-			})
-		}
-
-		validConditionTypes := map[string]bool{
-			"commit_count":          true,
-			"pr_opened_count":       true,
-			"pr_merged_count":       true,
-			"review_count":          true,
-			"comment_count":         true,
-			"lines_added":           true,
-			"lines_deleted":         true,
-			"avg_review_time_hours": true,
-			"repo_count":            true,
-			"unique_reviewees":      true,
-			// PR quality metrics
-			"largest_pr_size": true,
-			"small_pr_count":  true,
-			"perfect_prs":     true,
-			// Activity pattern metrics
-			"active_days":      true,
-			"longest_streak":   true,
-			"early_bird_count": true,
-			"night_owl_count":  true,
-			"midnight_count":   true,
-			"weekend_warrior":  true,
-		}
-		if !validConditionTypes[achievement.Condition.Type] {
-			errs = append(errs, ValidationError{
-				Field:   fmt.Sprintf("scoring.achievements[%d].condition.type", i),
-				Message: fmt.Sprintf("invalid condition type: %s", achievement.Condition.Type),
-			})
-		}
-	}
+	// Note: Achievements are hardcoded and not user-configurable to prevent manipulation
 
 	// Validate output
 	if cfg.Output.Directory == "" {

internal/config/validation_test.go

@@ -233,61 +233,8 @@ func TestValidate(t *testing.T) {
 			expectError: true,
 			errorField:  "teams[0].members",
 		},
-		{
-			name: "duplicate achievement id",
-			config: &Config{
-				Auth: AuthConfig{
-					GithubToken: "ghp_test123",
-				},
-				Repositories: []RepositoryConfig{
-					{Owner: "testorg", Name: "testrepo"},
-				},
-				Scoring: ScoringConfig{
-					Enabled: true,
-					Achievements: []AchievementConfig{
-						{ID: "test-achievement", Name: "Test 1", Condition: AchievementCondition{Type: "commit_count", Threshold: 10}},
-						{ID: "test-achievement", Name: "Test 2", Condition: AchievementCondition{Type: "commit_count", Threshold: 20}},
-					},
-				},
-				Granularity: []string{"daily"},
-				Output: OutputConfig{
-					Directory: "./dist",
-					Format:    []string{"html"},
-				},
-				Options: OptionsConfig{
-					ConcurrentRequests: 5,
-				},
-			},
-			expectError: true,
-			errorField:  "scoring.achievements[1].id",
-		},
-		{
-			name: "invalid achievement condition type",
-			config: &Config{
-				Auth: AuthConfig{
-					GithubToken: "ghp_test123",
-				},
-				Repositories: []RepositoryConfig{
-					{Owner: "testorg", Name: "testrepo"},
-				},
-				Scoring: ScoringConfig{
-					Enabled: true,
-					Achievements: []AchievementConfig{
-						{ID: "test", Name: "Test", Condition: AchievementCondition{Type: "invalid_type", Threshold: 10}},
-					},
-				},
-				Granularity: []string{"daily"},
-				Output: OutputConfig{
-					Directory: "./dist",
-					Format:    []string{"html"},
-				},
-				Options: OptionsConfig{
-					ConcurrentRequests: 5,
-				},
-			},
-			expectError: true,
-			errorField:  "scoring.achievements[0].condition.type",
-		},
+		// Note: Achievement validation tests removed because achievements are now hardcoded
+		// and not user-configurable to prevent manipulation
 		{
 			name: "missing output directory",
 			config: &Config{

internal/diff/analyzer.go

@@ -0,0 +1,137 @@
+package diff
+
+import (
+	"strings"
+)
+
+// IsCommentLine checks if a line is a code comment (should not count as meaningful contribution)
+func IsCommentLine(line string) bool {
+	trimmed := strings.TrimSpace(line)
+	if trimmed == "" {
+		return true // Empty lines don't count
+	}
+
+	// Common comment patterns across languages
+	commentPrefixes := []string{
+		"//",     // C, C++, Java, Go, JS, TS, Swift, Kotlin, etc.
+		"#",      // Python, Ruby, Shell, YAML, Perl, etc.
+		"/*",     // C-style block comment start
+		"*/",     // C-style block comment end
+		"*",      // C-style block comment continuation
+		"<!--",   // HTML/XML comment
+		"-->",    // HTML/XML comment end
+		"--",     // SQL, Lua, Haskell
+		";",      // Assembly, Lisp, INI files
+		"'",      // VB comment
+		"\"\"\"", // Python docstring
+		"'''",    // Python docstring
+	}
+
+	for _, prefix := range commentPrefixes {
+		if strings.HasPrefix(trimmed, prefix) {
+			return true
+		}
+	}
+
+	return false
+}
+
+// IsWhitespaceLine checks if a line contains only whitespace characters
+func IsWhitespaceLine(line string) bool {
+	return strings.TrimSpace(line) == ""
+}
+
+// IsDocumentationFile checks if a file is documentation-only
+func IsDocumentationFile(filename string) bool {
+	// Documentation file extensions and patterns
+	docPatterns := []string{
+		".md", ".markdown", ".rst", ".txt", ".adoc",
+		"README", "CHANGELOG", "LICENSE", "CONTRIBUTING",
+		"docs/", "documentation/", "/doc/",
+	}
+
+	lowerFilename := strings.ToLower(filename)
+	for _, pattern := range docPatterns {
+		if strings.Contains(lowerFilename, strings.ToLower(pattern)) {
+			return true
+		}
+	}
+	return false
+}
+
+// PatchStats holds the results of analyzing a diff patch
+type PatchStats struct {
+	TotalAdditions      int
+	TotalDeletions      int
+	MeaningfulAdditions int
+	MeaningfulDeletions int
+	CommentAdditions    int
+	CommentDeletions    int
+	WhitespaceAdditions int
+	WhitespaceDeletions int
+}
+
+// AnalyzePatch analyzes a unified diff patch and returns both raw and meaningful line counts.
+// It parses diff hunks and categorizes each changed line as meaningful, comment, or whitespace.
+func AnalyzePatch(patch string) PatchStats {
+	stats := PatchStats{}
+
+	lines := strings.Split(patch, "\n")
+	for _, line := range lines {
+		if len(line) == 0 {
+			continue
+		}
+
+		// Check if this is an addition or deletion line
+		isAddition := strings.HasPrefix(line, "+") && !strings.HasPrefix(line, "+++")
+		isDeletion := strings.HasPrefix(line, "-") && !strings.HasPrefix(line, "---")
+
+		if !isAddition && !isDeletion {
+			continue // Context line or header
+		}
+
+		// Remove the diff prefix to get actual content
+		content := line[1:]
+
+		// Categorize the line
+		if IsWhitespaceLine(content) {
+			if isAddition {
+				stats.TotalAdditions++
+				stats.WhitespaceAdditions++
+			} else {
+				stats.TotalDeletions++
+				stats.WhitespaceDeletions++
+			}
+		} else if IsCommentLine(content) {
+			if isAddition {
+				stats.TotalAdditions++
+				stats.CommentAdditions++
+			} else {
+				stats.TotalDeletions++
+				stats.CommentDeletions++
+			}
+		} else {
+			// Meaningful code line
+			if isAddition {
+				stats.TotalAdditions++
+				stats.MeaningfulAdditions++
+			} else {
+				stats.TotalDeletions++
+				stats.MeaningfulDeletions++
+			}
+		}
+	}
+
+	return stats
+}
+
+// AnalyzePatchSimple returns just the meaningful additions and deletions
+func AnalyzePatchSimple(patch string) (meaningfulAdds, meaningfulDels int) {
+	stats := AnalyzePatch(patch)
+	return stats.MeaningfulAdditions, stats.MeaningfulDeletions
+}
+
+// IsMeaningfulLine checks if a line of code is meaningful (not a comment or whitespace)
+func IsMeaningfulLine(line string) bool {
+	return !IsWhitespaceLine(line) && !IsCommentLine(line)
+}

internal/diff/analyzer_test.go

@@ -0,0 +1,431 @@
+package diff
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestIsCommentLine(t *testing.T) {
+	tests := []struct {
+		name     string
+		line     string
+		expected bool
+	}{
+		// Empty and whitespace
+		{"empty string", "", true},
+		{"whitespace only", "   ", true},
+		{"tab only", "\t", true},
+		{"mixed whitespace", "  \t  ", true},
+
+		// C-style comments (Go, Java, JS, C++, etc.)
+		{"C single line comment", "// this is a comment", true},
+		{"C single line with leading space", "  // this is a comment", true},
+		{"C block start", "/* block comment", true},
+		{"C block end", "*/", true},
+		{"C block continuation", "* continuation", true},
+		{"C block continuation with space", "  * continuation", true},
+
+		// Python/Shell comments
+		{"Python comment", "# python comment", true},
+		{"Shell comment", "#!/bin/bash", true},
+		{"Python comment with space", "  # comment", true},
+
+		// Python docstrings
+		{"Python docstring double", "\"\"\"docstring", true},
+		{"Python docstring single", "'''docstring", true},
+
+		// SQL/Lua/Haskell comments
+		{"SQL comment", "-- SQL comment", true},
+
+		// Assembly/Lisp/INI comments
+		{"Assembly comment", "; assembly comment", true},
+		{"INI comment", "; ini comment", true},
+
+		// VB comments
+		{"VB comment", "' VB comment", true},
+
+		// HTML/XML comments
+		{"HTML comment start", "<!-- html comment", true},
+		{"HTML comment end", "-->", true},
+
+		// Actual code - NOT comments
+		{"Go code", "func main() {", false},
+		{"Python code", "def main():", false},
+		{"JS code", "const x = 5;", false},
+		{"Variable assignment", "x = 10", false},
+		{"Return statement", "return nil", false},
+		{"Import statement", "import fmt", false},
+		{"Package declaration", "package main", false},
+		{"Struct field", "Name string", false},
+		{"Function call", "fmt.Println(x)", false},
+		{"String with slash", `"http://example.com"`, false},
+		{"Code after whitespace", "    x := 5", false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := IsCommentLine(tt.line)
+			assert.Equal(t, tt.expected, result, "IsCommentLine(%q)", tt.line)
+		})
+	}
+}
+
+func TestIsWhitespaceLine(t *testing.T) {
+	tests := []struct {
+		name     string
+		line     string
+		expected bool
+	}{
+		{"empty string", "", true},
+		{"single space", " ", true},
+		{"multiple spaces", "     ", true},
+		{"single tab", "\t", true},
+		{"multiple tabs", "\t\t\t", true},
+		{"mixed whitespace", "  \t  \t  ", true},
+		{"newline only", "\n", true},
+		{"carriage return", "\r", true},
+		{"code line", "x := 5", false},
+		{"code with leading whitespace", "    x := 5", false},
+		{"comment line", "// comment", false},
+		{"single character", "x", false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := IsWhitespaceLine(tt.line)
+			assert.Equal(t, tt.expected, result, "IsWhitespaceLine(%q)", tt.line)
+		})
+	}
+}
+
+func TestIsDocumentationFile(t *testing.T) {
+	tests := []struct {
+		name     string
+		filename string
+		expected bool
+	}{
+		// Documentation files
+		{"readme markdown", "README.md", true},
+		{"readme uppercase", "README", true},
+		{"readme lowercase", "readme.md", true},
+		{"changelog", "CHANGELOG.md", true},
+		{"license", "LICENSE", true},
+		{"license txt", "LICENSE.txt", true},
+		{"contributing", "CONTRIBUTING.md", true},
+		{"markdown file", "docs.md", true},
+		{"rst file", "index.rst", true},
+		{"txt file", "notes.txt", true},
+		{"adoc file", "guide.adoc", true},
+		{"docs directory", "docs/api.md", true},
+		{"documentation directory", "documentation/guide.md", true},
+		{"doc directory", "/doc/api.md", true},
+
+		// Code files - NOT documentation
+		{"go file", "main.go", false},
+		{"python file", "app.py", false},
+		{"js file", "index.js", false},
+		{"ts file", "app.ts", false},
+		{"java file", "App.java", false},
+		{"c file", "main.c", false},
+		{"cpp file", "main.cpp", false},
+		{"rust file", "main.rs", false},
+		{"yaml file", "config.yaml", false},
+		{"json file", "package.json", false},
+		{"html file", "index.html", false},
+		{"css file", "style.css", false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := IsDocumentationFile(tt.filename)
+			assert.Equal(t, tt.expected, result, "IsDocumentationFile(%q)", tt.filename)
+		})
+	}
+}
+
+func TestAnalyzePatch(t *testing.T) {
+	tests := []struct {
+		name     string
+		patch    string
+		expected PatchStats
+	}{
+		{
+			name: "simple additions",
+			patch: `@@ -1,3 +1,5 @@
+ context line
++func main() {
++    x := 5
++}`,
+			expected: PatchStats{
+				TotalAdditions:      3,
+				MeaningfulAdditions: 3,
+			},
+		},
+		{
+			name: "simple deletions",
+			patch: `@@ -1,5 +1,3 @@
+ context line
+-func main() {
+-    x := 5
+-}`,
+			expected: PatchStats{
+				TotalDeletions:      3,
+				MeaningfulDeletions: 3,
+			},
+		},
+		{
+			name: "mixed additions and deletions",
+			patch: `@@ -1,3 +1,3 @@
+-old code
++new code`,
+			expected: PatchStats{
+				TotalAdditions:      1,
+				TotalDeletions:      1,
+				MeaningfulAdditions: 1,
+				MeaningfulDeletions: 1,
+			},
+		},
+		{
+			name: "comment only changes",
+			patch: `@@ -1,3 +1,5 @@
+ func main() {
++// This is a comment
++// Another comment
+ }`,
+			expected: PatchStats{
+				TotalAdditions:   2,
+				CommentAdditions: 2,
+			},
+		},
+		{
+			name: "whitespace only changes",
+			patch: `@@ -1,3 +1,5 @@
+ func main() {
++
++
+ }`,
+			expected: PatchStats{
+				TotalAdditions:      2,
+				WhitespaceAdditions: 2,
+			},
+		},
+		{
+			name: "mixed meaningful and non-meaningful",
+			patch: `@@ -1,5 +1,10 @@
+ func main() {
++// Add logging
++    x := 5
++
++    // Calculate result
++    result := x * 2
++
+ }`,
+			expected: PatchStats{
+				TotalAdditions:      6,
+				MeaningfulAdditions: 2, // x := 5 and result := x * 2
+				CommentAdditions:    2, // two comments
+				WhitespaceAdditions: 2, // two empty lines
+			},
+		},
+		{
+			name: "deleted comments",
+			patch: `@@ -1,5 +1,2 @@
+ func main() {
+-// Old comment
+-/* Block comment */
+ }`,
+			expected: PatchStats{
+				TotalDeletions:   2,
+				CommentDeletions: 2,
+			},
+		},
+		{
+			name: "python style comments",
+			patch: `@@ -1,3 +1,6 @@
+ def main():
++# This is a python comment
++"""This is a docstring"""
++    x = 5`,
+			expected: PatchStats{
+				TotalAdditions:      3,
+				MeaningfulAdditions: 1, // x = 5
+				CommentAdditions:    2, // # comment and docstring
+			},
+		},
+		{
+			name: "sql comments",
+			patch: `@@ -1,2 +1,4 @@
+ SELECT * FROM users
++-- This is a SQL comment
++WHERE id = 1`,
+			expected: PatchStats{
+				TotalAdditions:      2,
+				MeaningfulAdditions: 1, // WHERE clause
+				CommentAdditions:    1, // SQL comment
+			},
+		},
+		{
+			name:  "empty patch",
+			patch: "",
+			expected: PatchStats{
+				TotalAdditions:      0,
+				TotalDeletions:      0,
+				MeaningfulAdditions: 0,
+				MeaningfulDeletions: 0,
+			},
+		},
+		{
+			name: "context only patch",
+			patch: `@@ -1,3 +1,3 @@
+ line 1
+ line 2
+ line 3`,
+			expected: PatchStats{
+				TotalAdditions:      0,
+				TotalDeletions:      0,
+				MeaningfulAdditions: 0,
+				MeaningfulDeletions: 0,
+			},
+		},
+		{
+			name: "header lines should be ignored",
+			patch: `--- a/file.go
++++ b/file.go
+@@ -1,3 +1,4 @@
+ context
++new line`,
+			expected: PatchStats{
+				TotalAdditions:      1,
+				MeaningfulAdditions: 1,
+			},
+		},
+		{
+			name: "c-style block comment continuation",
+			patch: `@@ -1,2 +1,5 @@
+ code
++/*
++ * Block comment
++ */`,
+			expected: PatchStats{
+				TotalAdditions:   3,
+				CommentAdditions: 3,
+			},
+		},
+		{
+			name: "html comments",
+			patch: `@@ -1,2 +1,4 @@
+ <div>
++<!-- This is an HTML comment -->
++<p>Content</p>`,
+			expected: PatchStats{
+				TotalAdditions:      2,
+				MeaningfulAdditions: 1, // <p> tag
+				CommentAdditions:    1, // HTML comment
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := AnalyzePatch(tt.patch)
+			assert.Equal(t, tt.expected.TotalAdditions, result.TotalAdditions, "TotalAdditions")
+			assert.Equal(t, tt.expected.TotalDeletions, result.TotalDeletions, "TotalDeletions")
+			assert.Equal(t, tt.expected.MeaningfulAdditions, result.MeaningfulAdditions, "MeaningfulAdditions")
+			assert.Equal(t, tt.expected.MeaningfulDeletions, result.MeaningfulDeletions, "MeaningfulDeletions")
+			assert.Equal(t, tt.expected.CommentAdditions, result.CommentAdditions, "CommentAdditions")
+			assert.Equal(t, tt.expected.CommentDeletions, result.CommentDeletions, "CommentDeletions")
+			assert.Equal(t, tt.expected.WhitespaceAdditions, result.WhitespaceAdditions, "WhitespaceAdditions")
+			assert.Equal(t, tt.expected.WhitespaceDeletions, result.WhitespaceDeletions, "WhitespaceDeletions")
+		})
+	}
+}
+
+func TestAnalyzePatchSimple(t *testing.T) {
+	patch := `@@ -1,3 +1,6 @@
+ func main() {
++// comment
++    x := 5
++
++    y := 10
+ }`
+
+	adds, dels := AnalyzePatchSimple(patch)
+	assert.Equal(t, 2, adds, "meaningful additions (x := 5 and y := 10)")
+	assert.Equal(t, 0, dels, "meaningful deletions")
+}
+
+func TestIsMeaningfulLine(t *testing.T) {
+	tests := []struct {
+		name     string
+		line     string
+		expected bool
+	}{
+		{"code line", "x := 5", true},
+		{"function definition", "func main() {", true},
+		{"return statement", "return nil", true},
+		{"comment line", "// comment", false},
+		{"empty line", "", false},
+		{"whitespace line", "   ", false},
+		{"python comment", "# comment", false},
+		{"code with leading whitespace", "    x := 5", true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := IsMeaningfulLine(tt.line)
+			assert.Equal(t, tt.expected, result, "IsMeaningfulLine(%q)", tt.line)
+		})
+	}
+}
+
+func TestAnalyzePatch_RealWorldExample(t *testing.T) {
+	// Simulate a real-world Go file change
+	patch := `diff --git a/main.go b/main.go
+index 1234567..abcdefg 100644
+--- a/main.go
++++ b/main.go
+@@ -10,6 +10,15 @@ package main
+ import "fmt"
+
++// ProcessData handles data processing
++// It takes input and returns processed output
+ func ProcessData(input string) string {
++	// Validate input
++	if input == "" {
++		return ""
++	}
++
++	// Transform the data
++	result := strings.ToUpper(input)
+-	return input
++	return result
+ }`
+
+	stats := AnalyzePatch(patch)
+
+	// Count what's actually in the patch:
+	// Additions (lines starting with +, not +++):
+	// 1. +// ProcessData handles data processing  -> comment
+	// 2. +// It takes input and returns processed output  -> comment
+	// 3. +	// Validate input  -> comment
+	// 4. +	if input == ""  -> meaningful
+	// 5. +		return ""  -> meaningful
+	// 6. +	}  -> meaningful
+	// 7. +  (empty line)  -> whitespace
+	// 8. +	// Transform the data  -> comment
+	// 9. +	result := strings.ToUpper(input)  -> meaningful
+	// 10. +	return result  -> meaningful
+	// Total: 10 additions, 5 meaningful, 4 comments, 1 whitespace
+
+	// Deletions (lines starting with -, not ---):
+	// 1. -	return input  -> meaningful
+	// Total: 1 deletion, 1 meaningful
+
+	assert.Equal(t, 10, stats.TotalAdditions, "Total additions")
+	assert.Equal(t, 1, stats.TotalDeletions, "Total deletions")
+	assert.Equal(t, 5, stats.MeaningfulAdditions, "Meaningful additions")
+	assert.Equal(t, 1, stats.MeaningfulDeletions, "Meaningful deletions")
+	assert.Equal(t, 4, stats.CommentAdditions, "Comment additions")
+	assert.Equal(t, 1, stats.WhitespaceAdditions, "Whitespace additions")
+}

internal/domain/models/commit.go

@@ -15,6 +15,14 @@ type Commit struct {
 	Repository   string    `json:"repository"` // owner/repo format
 	URL          string    `json:"url"`
 
+	// Meaningful line counts (excludes comments and whitespace)
+	MeaningfulAdditions int `json:"meaningful_additions"`
+	MeaningfulDeletions int `json:"meaningful_deletions"`
+
+	// Comment line counts
+	CommentAdditions int `json:"comment_additions"`
+	CommentDeletions int `json:"comment_deletions"`
+
 	// Derived fields
 	HasTests bool `json:"has_tests"`
 }

internal/domain/models/metrics.go

@@ -23,6 +23,14 @@ type ContributorMetrics struct {
 	LinesDeleted int `json:"lines_deleted"`
 	FilesChanged int `json:"files_changed"`
 
+	// Meaningful line counts (excludes comments and whitespace)
+	MeaningfulLinesAdded   int `json:"meaningful_lines_added"`
+	MeaningfulLinesDeleted int `json:"meaningful_lines_deleted"`
+
+	// Comment and documentation line counts
+	CommentLinesAdded   int `json:"comment_lines_added"`
+	CommentLinesDeleted int `json:"comment_lines_deleted"`
+
 	// PR metrics
 	PRsOpened      int     `json:"prs_opened"`
 	PRsMerged      int     `json:"prs_merged"`
@@ -46,13 +54,15 @@ type ContributorMetrics struct {
 	IssueComments int `json:"issue_comments"`
 
 	// Activity patterns
-	ActiveDays     int `json:"active_days"`      // Unique days with activity
-	CurrentStreak  int `json:"current_streak"`   // Current consecutive days
-	LongestStreak  int `json:"longest_streak"`   // Longest consecutive days
-	EarlyBirdCount int `json:"early_bird_count"` // Commits before 9am
-	NightOwlCount  int `json:"night_owl_count"`  // Commits after 9pm
-	MidnightCount  int `json:"midnight_count"`   // Commits between midnight and 4am
-	WeekendWarrior int `json:"weekend_warrior"`  // Weekend commits
+	ActiveDays      int `json:"active_days"`        // Unique days with activity
+	CurrentStreak   int `json:"current_streak"`     // Current consecutive days
+	LongestStreak   int `json:"longest_streak"`     // Longest consecutive days
+	WorkWeekStreak  int `json:"work_week_streak"`   // Longest consecutive weekdays (Mon-Fri, weekends don't break streak)
+	EarlyBirdCount  int `json:"early_bird_count"`   // Commits before 9am
+	NightOwlCount   int `json:"night_owl_count"`    // Commits after 9pm
+	MidnightCount   int `json:"midnight_count"`     // Commits between midnight and 4am
+	WeekendWarrior  int `json:"weekend_warrior"`    // Weekend commits
+	OutOfHoursCount int `json:"out_of_hours_count"` // Commits outside 9am-5pm
 
 	// Repository participation
 	RepositoriesContributed []string `json:"repositories_contributed,omitempty"`
@@ -79,6 +89,7 @@ type ScoreBreakdown struct {
 	Comments      int `json:"comments"` // PR review comments (not code comments)
 	ResponseBonus int `json:"response_bonus"`
 	LineChanges   int `json:"line_changes"`
+	OutOfHours    int `json:"out_of_hours"` // Bonus for out-of-hours commits
 }
 
 // RepositoryMetrics holds aggregated metrics for a single repository
@@ -94,6 +105,10 @@ type RepositoryMetrics struct {
 	ActiveContributors int                  `json:"active_contributors"`
 	TotalLinesAdded    int                  `json:"total_lines_added"`
 	TotalLinesDeleted  int                  `json:"total_lines_deleted"`
+
+	// Meaningful line counts (excludes comments and whitespace)
+	TotalMeaningfulLinesAdded   int `json:"total_meaningful_lines_added"`
+	TotalMeaningfulLinesDeleted int `json:"total_meaningful_lines_deleted"`
 }
 
 // TeamMetrics holds aggregated metrics for a team
@@ -110,11 +125,12 @@ type TeamMetrics struct {
 
 // GlobalMetrics holds metrics aggregated across all repositories
 type GlobalMetrics struct {
-	Period       Period              `json:"period"`
-	Repositories []RepositoryMetrics `json:"repositories"`
-	Teams        []TeamMetrics       `json:"teams"`
-	Leaderboard  []LeaderboardEntry  `json:"leaderboard"`
-	TopAchievers map[string]string   `json:"top_achievers"` // category -> login
+	Period       Period               `json:"period"`
+	Repositories []RepositoryMetrics  `json:"repositories"`
+	Contributors []ContributorMetrics `json:"contributors"` // Aggregated across all repos
+	Teams        []TeamMetrics        `json:"teams"`
+	Leaderboard  []LeaderboardEntry   `json:"leaderboard"`
+	TopAchievers map[string]string    `json:"top_achievers"` // category -> login
 
 	// Summary stats
 	TotalContributors int `json:"total_contributors"`
@@ -124,6 +140,10 @@ type GlobalMetrics struct {
 	TotalLinesAdded   int `json:"total_lines_added"`
 	TotalLinesDeleted int `json:"total_lines_deleted"`
 
+	// Meaningful line counts (excludes comments and whitespace)
+	TotalMeaningfulLinesAdded   int `json:"total_meaningful_lines_added"`
+	TotalMeaningfulLinesDeleted int `json:"total_meaningful_lines_deleted"`
+
 	// Velocity timeline (weekly granularity)
 	VelocityTimeline *VelocityTimeline `json:"velocity_timeline,omitempty"`
 }

internal/domain/models/pullrequest.go

@@ -32,6 +32,10 @@ type PullRequest struct {
 	Reviews      []Review   `json:"reviews,omitempty"`
 	URL          string     `json:"url"`
 
+	// Meaningful line counts (excludes comments and whitespace)
+	MeaningfulAdditions int `json:"meaningful_additions"`
+	MeaningfulDeletions int `json:"meaningful_deletions"`
+
 	// Derived fields
 	TimeToMerge       *time.Duration `json:"time_to_merge,omitempty"`
 	TimeToFirstReview *time.Duration `json:"time_to_first_review,omitempty"`

internal/domain/scoring/calculator.go

@@ -40,6 +40,10 @@ func (c *Calculator) Calculate(metrics *models.GlobalMetrics) *models.GlobalMetr
 				existing.CommitCount += cm.CommitCount
 				existing.LinesAdded += cm.LinesAdded
 				existing.LinesDeleted += cm.LinesDeleted
+				existing.MeaningfulLinesAdded += cm.MeaningfulLinesAdded
+				existing.MeaningfulLinesDeleted += cm.MeaningfulLinesDeleted
+				existing.CommentLinesAdded += cm.CommentLinesAdded
+				existing.CommentLinesDeleted += cm.CommentLinesDeleted
 				existing.PRsOpened += cm.PRsOpened
 				existing.PRsMerged += cm.PRsMerged
 				existing.ReviewsGiven += cm.ReviewsGiven
@@ -114,6 +118,7 @@ func (c *Calculator) Calculate(metrics *models.GlobalMetrics) *models.GlobalMetr
 	// Update the metrics
 	metrics.Leaderboard = leaderboard
 	metrics.TopAchievers = topAchievers
+	metrics.Contributors = contributors // Update global contributors with scored data
 
 	// Calculate per-repository scores (based on repo-specific metrics, not global)
 	for i := range metrics.Repositories {
@@ -157,16 +162,24 @@ func (c *Calculator) calculateScore(cm *models.ContributorMetrics) models.Score
 	// Commit points
 	breakdown.Commits = cm.CommitCount * points.Commit
 
-	// Line change points
-	breakdown.LineChanges = int(float64(cm.LinesAdded)*points.LinesAdded +
-		float64(cm.LinesDeleted)*points.LinesDeleted)
+	// Line change points - use meaningful lines if configured, otherwise raw counts
+	linesAdded := cm.LinesAdded
+	linesDeleted := cm.LinesDeleted
+	if points.UseMeaningfulLines {
+		linesAdded = cm.MeaningfulLinesAdded
+		linesDeleted = cm.MeaningfulLinesDeleted
+	}
+	breakdown.LineChanges = int(float64(linesAdded)*points.LinesAdded +
+		float64(linesDeleted)*points.LinesDeleted)
 
 	// PR points
 	breakdown.PRs = cm.PRsOpened*points.PROpened + cm.PRsMerged*points.PRMerged
 
-	// Review points (PR reviews and PR review comments)
-	breakdown.Reviews = cm.ReviewsGiven*points.PRReviewed +
-		cm.ReviewComments*points.ReviewComment
+	// Review points (PR reviews)
+	breakdown.Reviews = cm.ReviewsGiven * points.PRReviewed
+
+	// Comment points (PR review comments)
+	breakdown.Comments = cm.ReviewComments * points.ReviewComment
 
 	// Response time bonus
 	if cm.ReviewsGiven > 0 && cm.AvgReviewTime > 0 {
@@ -179,9 +192,12 @@ func (c *Calculator) calculateScore(cm *models.ContributorMetrics) models.Score
 		}
 	}
 
+	// Out of hours bonus (commits outside 9am-5pm)
+	breakdown.OutOfHours = cm.OutOfHoursCount * points.OutOfHours
+
 	// Calculate total
 	total := breakdown.Commits + breakdown.LineChanges + breakdown.PRs +
-		breakdown.Reviews + breakdown.ResponseBonus + breakdown.Comments
+		breakdown.Reviews + breakdown.ResponseBonus + breakdown.Comments + breakdown.OutOfHours
 
 	return models.Score{
 		Total:     total,
@@ -193,7 +209,7 @@ func (c *Calculator) checkAchievements(cm *models.ContributorMetrics) []string {
 	// Collect ALL earned achievements (including all tiers)
 	var achievements []string
 
-	for _, ach := range c.config.Scoring.Achievements {
+	for _, ach := range c.config.Scoring.GetAchievements() {
 		earned := false
 
 		switch ach.Condition.Type {
@@ -240,6 +256,15 @@ func (c *Calculator) checkAchievements(cm *models.ContributorMetrics) []string {
 			earned = float64(cm.MidnightCount) >= ach.Condition.Threshold
 		case "weekend_warrior":
 			earned = float64(cm.WeekendWarrior) >= ach.Condition.Threshold
+		case "out_of_hours_count":
+			earned = float64(cm.OutOfHoursCount) >= ach.Condition.Threshold
+		case "work_week_streak":
+			earned = float64(cm.WorkWeekStreak) >= ach.Condition.Threshold
+		// Documentation & comments
+		case "comment_lines_added":
+			earned = float64(cm.CommentLinesAdded) >= ach.Condition.Threshold
+		case "comment_lines_deleted":
+			earned = float64(cm.CommentLinesDeleted) >= ach.Condition.Threshold
 		}
 
 		if earned {

internal/domain/scoring/calculator_test.go

@@ -98,6 +98,108 @@ func TestCalculator_BasicScoring(t *testing.T) {
 	assert.Equal(t, 840, entry.Score)
 }
 
+func TestCalculator_GlobalContributorsPopulatedWithScores(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.DefaultConfig()
+	cfg.Scoring.Enabled = true
+	cfg.Scoring.Points = config.PointsConfig{
+		Commit:        10,
+		PROpened:      25,
+		PRMerged:      50,
+		PRReviewed:    30,
+		ReviewComment: 5,
+		LinesAdded:    0.1,
+		LinesDeleted:  0.05,
+	}
+	calc := NewCalculator(cfg)
+
+	// Contributor appears in multiple repos with different stats
+	metrics := &models.GlobalMetrics{
+		Repositories: []models.RepositoryMetrics{
+			{
+				FullName: "owner/repo1",
+				Contributors: []models.ContributorMetrics{
+					{
+						Login:       "alice",
+						Name:        "Alice",
+						CommitCount: 50,
+						PRsOpened:   5,
+						PRsMerged:   3,
+					},
+					{
+						Login:       "bob",
+						Name:        "Bob",
+						CommitCount: 20,
+						PRsOpened:   2,
+					},
+				},
+			},
+			{
+				FullName: "owner/repo2",
+				Contributors: []models.ContributorMetrics{
+					{
+						Login:       "alice",
+						Name:        "Alice",
+						CommitCount: 30, // Additional commits in second repo
+						PRsOpened:   3,
+						PRsMerged:   2,
+					},
+				},
+			},
+		},
+	}
+
+	result := calc.Calculate(metrics)
+
+	// Verify metrics.Contributors is populated
+	require.NotEmpty(t, result.Contributors, "metrics.Contributors should be populated")
+	require.Len(t, result.Contributors, 2, "Should have 2 unique contributors")
+
+	// Find alice in Contributors
+	var alice *models.ContributorMetrics
+	for i := range result.Contributors {
+		if result.Contributors[i].Login == "alice" {
+			alice = &result.Contributors[i]
+			break
+		}
+	}
+	require.NotNil(t, alice, "Alice should be in Contributors")
+
+	// Verify alice has AGGREGATED stats
+	assert.Equal(t, 80, alice.CommitCount, "Alice should have aggregated commits (50+30)")
+	assert.Equal(t, 8, alice.PRsOpened, "Alice should have aggregated PRs opened (5+3)")
+	assert.Equal(t, 5, alice.PRsMerged, "Alice should have aggregated PRs merged (3+2)")
+
+	// Verify alice has a calculated score with breakdown
+	assert.Greater(t, alice.Score.Total, 0, "Alice should have a calculated score")
+	assert.Greater(t, alice.Score.Breakdown.Commits, 0, "Score breakdown should have commits")
+	assert.Greater(t, alice.Score.Breakdown.PRs, 0, "Score breakdown should have PRs")
+
+	// Verify score calculation:
+	// Commits: 80 * 10 = 800
+	// PRs: 8 * 25 + 5 * 50 = 200 + 250 = 450
+	// Total: 800 + 450 = 1250
+	assert.Equal(t, 800, alice.Score.Breakdown.Commits, "Commit points should be 80 * 10 = 800")
+	assert.Equal(t, 450, alice.Score.Breakdown.PRs, "PR points should be 8*25 + 5*50 = 450")
+	assert.Equal(t, 1250, alice.Score.Total, "Total score should be 1250")
+
+	// Verify rank is assigned
+	assert.Equal(t, 1, alice.Score.Rank, "Alice should be rank 1 (highest scorer)")
+
+	// Verify bob also has scores
+	var bob *models.ContributorMetrics
+	for i := range result.Contributors {
+		if result.Contributors[i].Login == "bob" {
+			bob = &result.Contributors[i]
+			break
+		}
+	}
+	require.NotNil(t, bob, "Bob should be in Contributors")
+	assert.Greater(t, bob.Score.Total, 0, "Bob should have a calculated score")
+	assert.Equal(t, 2, bob.Score.Rank, "Bob should be rank 2")
+}
+
 func TestCalculator_FastReviewBonus(t *testing.T) {
 	t.Parallel()
 
@@ -290,40 +392,7 @@ func TestCalculator_Achievements(t *testing.T) {
 
 	cfg := config.DefaultConfig()
 	cfg.Scoring.Enabled = true
-	cfg.Scoring.Achievements = []config.AchievementConfig{
-		{
-			ID:   "commit-10",
-			Name: "10 Commits",
-			Condition: config.AchievementCondition{
-				Type:      "commit_count",
-				Threshold: 10,
-			},
-		},
-		{
-			ID:   "pr-master",
-			Name: "PR Master",
-			Condition: config.AchievementCondition{
-				Type:      "pr_opened_count",
-				Threshold: 5,
-			},
-		},
-		{
-			ID:   "reviewer",
-			Name: "Reviewer",
-			Condition: config.AchievementCondition{
-				Type:      "review_count",
-				Threshold: 10,
-			},
-		},
-		{
-			ID:   "speed-demon",
-			Name: "Speed Demon",
-			Condition: config.AchievementCondition{
-				Type:      "avg_review_time_hours",
-				Threshold: 1.0,
-			},
-		},
-	}
+	// Achievements are now hardcoded, no need to set them
 	calc := NewCalculator(cfg)
 
 	metrics := &models.GlobalMetrics{
@@ -333,10 +402,10 @@ func TestCalculator_Achievements(t *testing.T) {
 				Contributors: []models.ContributorMetrics{
 					{
 						Login:                   "user1",
-						CommitCount:             15,
-						PRsOpened:               6,
-						ReviewsGiven:            5,
-						AvgReviewTime:           0.5,
+						CommitCount:             15,  // Should earn commit-1, commit-10
+						PRsOpened:               6,   // Should earn pr-1
+						ReviewsGiven:            5,   // Should earn review-1
+						AvgReviewTime:           0.5, // Should earn review-time-1h, review-time-4h, review-time-24h
 						RepositoriesContributed: []string{"owner/repo"},
 					},
 				},
@@ -347,12 +416,16 @@ func TestCalculator_Achievements(t *testing.T) {
 	result := calc.Calculate(metrics)
 
 	contributor := result.Repositories[0].Contributors[0]
-	// Should have commit-10, pr-master, and speed-demon
-	// Should NOT have reviewer (only 5 reviews, need 10)
+	// Should have hardcoded achievements based on thresholds
+	assert.Contains(t, contributor.Achievements, "commit-1")
 	assert.Contains(t, contributor.Achievements, "commit-10")
-	assert.Contains(t, contributor.Achievements, "pr-master")
-	assert.Contains(t, contributor.Achievements, "speed-demon")
-	assert.NotContains(t, contributor.Achievements, "reviewer")
+	assert.Contains(t, contributor.Achievements, "pr-1")
+	assert.Contains(t, contributor.Achievements, "review-1")
+	assert.Contains(t, contributor.Achievements, "review-time-1h") // 0.5h < 1h threshold
+	// Should NOT have commit-50 (only 15 commits)
+	assert.NotContains(t, contributor.Achievements, "commit-50")
+	// Should NOT have review-10 (only 5 reviews)
+	assert.NotContains(t, contributor.Achievements, "review-10")
 }
 
 func TestCalculator_AllAchievementTypes(t *testing.T) {
@@ -360,18 +433,7 @@ func TestCalculator_AllAchievementTypes(t *testing.T) {
 
 	cfg := config.DefaultConfig()
 	cfg.Scoring.Enabled = true
-	cfg.Scoring.Achievements = []config.AchievementConfig{
-		{ID: "commits", Condition: config.AchievementCondition{Type: "commit_count", Threshold: 10}},
-		{ID: "prs-opened", Condition: config.AchievementCondition{Type: "pr_opened_count", Threshold: 5}},
-		{ID: "prs-merged", Condition: config.AchievementCondition{Type: "pr_merged_count", Threshold: 3}},
-		{ID: "reviews", Condition: config.AchievementCondition{Type: "review_count", Threshold: 8}},
-		{ID: "comments", Condition: config.AchievementCondition{Type: "comment_count", Threshold: 20}},
-		{ID: "lines-added", Condition: config.AchievementCondition{Type: "lines_added", Threshold: 1000}},
-		{ID: "lines-deleted", Condition: config.AchievementCondition{Type: "lines_deleted", Threshold: 500}},
-		{ID: "fast-review", Condition: config.AchievementCondition{Type: "avg_review_time_hours", Threshold: 2}},
-		{ID: "multi-repo", Condition: config.AchievementCondition{Type: "repo_count", Threshold: 2}},
-		{ID: "team-player", Condition: config.AchievementCondition{Type: "unique_reviewees", Threshold: 5}},
-	}
+	// Achievements are now hardcoded
 	calc := NewCalculator(cfg)
 
 	metrics := &models.GlobalMetrics{
@@ -400,18 +462,23 @@ func TestCalculator_AllAchievementTypes(t *testing.T) {
 	result := calc.Calculate(metrics)
 
 	contributor := result.Repositories[0].Contributors[0]
-	// Should have all achievements
-	assert.Len(t, contributor.Achievements, 10)
-	assert.Contains(t, contributor.Achievements, "commits")
-	assert.Contains(t, contributor.Achievements, "prs-opened")
-	assert.Contains(t, contributor.Achievements, "prs-merged")
-	assert.Contains(t, contributor.Achievements, "reviews")
-	assert.Contains(t, contributor.Achievements, "comments")
-	assert.Contains(t, contributor.Achievements, "lines-added")
-	assert.Contains(t, contributor.Achievements, "lines-deleted")
-	assert.Contains(t, contributor.Achievements, "fast-review")
-	assert.Contains(t, contributor.Achievements, "multi-repo")
-	assert.Contains(t, contributor.Achievements, "team-player")
+	// Should have various hardcoded achievements based on thresholds
+	// Check some key achievements are earned
+	assert.Contains(t, contributor.Achievements, "commit-1")
+	assert.Contains(t, contributor.Achievements, "commit-10")
+	assert.Contains(t, contributor.Achievements, "pr-1")
+	assert.Contains(t, contributor.Achievements, "review-1")
+	assert.Contains(t, contributor.Achievements, "review-10")
+	assert.Contains(t, contributor.Achievements, "comment-10")
+	assert.Contains(t, contributor.Achievements, "lines-added-100")
+	assert.Contains(t, contributor.Achievements, "lines-added-1000")
+	assert.Contains(t, contributor.Achievements, "lines-deleted-100")
+	assert.Contains(t, contributor.Achievements, "lines-deleted-500")
+	assert.Contains(t, contributor.Achievements, "review-time-4h") // 1.5h < 4h
+	assert.Contains(t, contributor.Achievements, "repo-2")         // 2 repos
+	assert.Contains(t, contributor.Achievements, "reviewees-3")    // 7 reviewees >= 3
+	// Should have earned multiple achievements (more than 10)
+	assert.Greater(t, len(contributor.Achievements), 10)
 }
 
 func TestCalculator_TopAchievers(t *testing.T) {
@@ -702,6 +769,76 @@ func TestCalculator_NoReviewsNoBonus(t *testing.T) {
 	assert.Equal(t, 0, contributor.Score.Breakdown.ResponseBonus)
 }
 
+func TestCalculator_OutOfHoursScoring(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.DefaultConfig()
+	cfg.Scoring.Enabled = true
+	cfg.Scoring.Points = config.PointsConfig{
+		Commit:     10,
+		OutOfHours: 5, // 5 points per out-of-hours commit
+	}
+	calc := NewCalculator(cfg)
+
+	metrics := &models.GlobalMetrics{
+		Repositories: []models.RepositoryMetrics{
+			{
+				FullName: "owner/repo",
+				Contributors: []models.ContributorMetrics{
+					{
+						Login:                   "night-owl",
+						CommitCount:             10,
+						OutOfHoursCount:         8, // 8 commits outside 9am-5pm
+						RepositoriesContributed: []string{"owner/repo"},
+					},
+				},
+			},
+		},
+	}
+
+	result := calc.Calculate(metrics)
+
+	contributor := result.Repositories[0].Contributors[0]
+	// Commits: 10 * 10 = 100
+	// OutOfHours: 8 * 5 = 40
+	// Total: 140
+	assert.Equal(t, 100, contributor.Score.Breakdown.Commits)
+	assert.Equal(t, 40, contributor.Score.Breakdown.OutOfHours)
+	assert.Equal(t, 140, contributor.Score.Total)
+}
+
+func TestCalculator_WorkWeekStreakAchievement(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.DefaultConfig()
+	cfg.Scoring.Enabled = true
+	// Achievements are now hardcoded
+	calc := NewCalculator(cfg)
+
+	metrics := &models.GlobalMetrics{
+		Repositories: []models.RepositoryMetrics{
+			{
+				FullName: "owner/repo",
+				Contributors: []models.ContributorMetrics{
+					{
+						Login:                   "consistent-worker",
+						CommitCount:             20,
+						WorkWeekStreak:          5, // 5-day work week streak
+						RepositoriesContributed: []string{"owner/repo"},
+					},
+				},
+			},
+		},
+	}
+
+	result := calc.Calculate(metrics)
+
+	contributor := result.Repositories[0].Contributors[0]
+	// Should have earned work week streak achievements for 3 and 5 days
+	assert.Contains(t, contributor.Achievements, "workweek-3")
+	assert.Contains(t, contributor.Achievements, "workweek-5")
+}
+
 func TestContains(t *testing.T) {
 	t.Parallel()
 
@@ -713,3 +850,258 @@ func TestContains(t *testing.T) {
 	assert.False(t, contains(slice, "d"))
 	assert.False(t, contains([]string{}, "a"))
 }
+
+func TestCalculator_MeaningfulLinesScoring(t *testing.T) {
+	t.Parallel()
+
+	t.Run("uses meaningful lines when enabled", func(t *testing.T) {
+		t.Parallel()
+
+		cfg := config.DefaultConfig()
+		cfg.Scoring.Enabled = true
+		cfg.Scoring.Points = config.PointsConfig{
+			Commit:             10,
+			LinesAdded:         0.1,
+			LinesDeleted:       0.05,
+			UseMeaningfulLines: true, // Use meaningful lines
+		}
+		calc := NewCalculator(cfg)
+
+		metrics := &models.GlobalMetrics{
+			Repositories: []models.RepositoryMetrics{
+				{
+					FullName: "owner/repo",
+					Contributors: []models.ContributorMetrics{
+						{
+							Login:                   "user1",
+							CommitCount:             10,
+							LinesAdded:              1000, // Raw lines
+							LinesDeleted:            500,
+							MeaningfulLinesAdded:    800, // Meaningful lines (excluding comments/whitespace)
+							MeaningfulLinesDeleted:  400,
+							RepositoriesContributed: []string{"owner/repo"},
+						},
+					},
+				},
+			},
+		}
+
+		result := calc.Calculate(metrics)
+
+		contributor := result.Repositories[0].Contributors[0]
+		// Line change points should use meaningful lines:
+		// Meaningful: 800 * 0.1 + 400 * 0.05 = 80 + 20 = 100
+		// (Not raw: 1000 * 0.1 + 500 * 0.05 = 100 + 25 = 125)
+		assert.Equal(t, 100, contributor.Score.Breakdown.LineChanges)
+		// Total: Commits (10 * 10 = 100) + Lines (100) = 200
+		assert.Equal(t, 200, contributor.Score.Total)
+	})
+
+	t.Run("uses raw lines when disabled", func(t *testing.T) {
+		t.Parallel()
+
+		cfg := config.DefaultConfig()
+		cfg.Scoring.Enabled = true
+		cfg.Scoring.Points = config.PointsConfig{
+			Commit:             10,
+			LinesAdded:         0.1,
+			LinesDeleted:       0.05,
+			UseMeaningfulLines: false, // Use raw lines
+		}
+		calc := NewCalculator(cfg)
+
+		metrics := &models.GlobalMetrics{
+			Repositories: []models.RepositoryMetrics{
+				{
+					FullName: "owner/repo",
+					Contributors: []models.ContributorMetrics{
+						{
+							Login:                   "user1",
+							CommitCount:             10,
+							LinesAdded:              1000, // Raw lines
+							LinesDeleted:            500,
+							MeaningfulLinesAdded:    800, // Meaningful lines (should be ignored)
+							MeaningfulLinesDeleted:  400,
+							RepositoriesContributed: []string{"owner/repo"},
+						},
+					},
+				},
+			},
+		}
+
+		result := calc.Calculate(metrics)
+
+		contributor := result.Repositories[0].Contributors[0]
+		// Line change points should use raw lines:
+		// Raw: 1000 * 0.1 + 500 * 0.05 = 100 + 25 = 125
+		assert.Equal(t, 125, contributor.Score.Breakdown.LineChanges)
+		// Total: Commits (10 * 10 = 100) + Lines (125) = 225
+		assert.Equal(t, 225, contributor.Score.Total)
+	})
+
+	t.Run("comment-only changes score zero meaningful lines", func(t *testing.T) {
+		t.Parallel()
+
+		cfg := config.DefaultConfig()
+		cfg.Scoring.Enabled = true
+		cfg.Scoring.Points = config.PointsConfig{
+			Commit:             10,
+			LinesAdded:         0.1,
+			LinesDeleted:       0.05,
+			UseMeaningfulLines: true,
+		}
+		calc := NewCalculator(cfg)
+
+		metrics := &models.GlobalMetrics{
+			Repositories: []models.RepositoryMetrics{
+				{
+					FullName: "owner/repo",
+					Contributors: []models.ContributorMetrics{
+						{
+							Login:                   "commenter",
+							CommitCount:             5,
+							LinesAdded:              100, // All comment lines
+							LinesDeleted:            50,
+							MeaningfulLinesAdded:    0, // No meaningful code
+							MeaningfulLinesDeleted:  0,
+							RepositoriesContributed: []string{"owner/repo"},
+						},
+					},
+				},
+			},
+		}
+
+		result := calc.Calculate(metrics)
+
+		contributor := result.Repositories[0].Contributors[0]
+		// Line change points should be 0 since all lines were comments
+		assert.Equal(t, 0, contributor.Score.Breakdown.LineChanges)
+		// Total: Commits (5 * 10 = 50) + Lines (0) = 50
+		assert.Equal(t, 50, contributor.Score.Total)
+	})
+}
+
+func TestCalculator_CommentLinesAchievements(t *testing.T) {
+	t.Parallel()
+
+	t.Run("earns documentation achievements for adding comments", func(t *testing.T) {
+		t.Parallel()
+
+		cfg := config.DefaultConfig()
+		cfg.Scoring.Enabled = true
+		calc := NewCalculator(cfg)
+
+		metrics := &models.GlobalMetrics{
+			Repositories: []models.RepositoryMetrics{
+				{
+					FullName: "owner/repo",
+					Contributors: []models.ContributorMetrics{
+						{
+							Login:                   "documenter",
+							CommitCount:             10,
+							CommentLinesAdded:       1500, // Should earn docs-100, docs-500, docs-1000
+							CommentLinesDeleted:     100,  // Should earn docs-del-50
+							RepositoriesContributed: []string{"owner/repo"},
+						},
+					},
+				},
+			},
+		}
+
+		result := calc.Calculate(metrics)
+
+		contributor := result.Repositories[0].Contributors[0]
+		// Should have documentation achievements
+		assert.Contains(t, contributor.Achievements, "docs-100", "Should earn docs-100 for 100+ comment lines")
+		assert.Contains(t, contributor.Achievements, "docs-500", "Should earn docs-500 for 500+ comment lines")
+		assert.Contains(t, contributor.Achievements, "docs-1000", "Should earn docs-1000 for 1000+ comment lines")
+		assert.NotContains(t, contributor.Achievements, "docs-2500", "Should not earn docs-2500 for <2500 comment lines")
+		// Should have comment cleanup achievement
+		assert.Contains(t, contributor.Achievements, "docs-del-50", "Should earn docs-del-50 for 50+ comment deletions")
+		assert.NotContains(t, contributor.Achievements, "docs-del-200", "Should not earn docs-del-200 for <200 deletions")
+	})
+
+	t.Run("earns all documentation deletion achievements", func(t *testing.T) {
+		t.Parallel()
+
+		cfg := config.DefaultConfig()
+		cfg.Scoring.Enabled = true
+		calc := NewCalculator(cfg)
+
+		metrics := &models.GlobalMetrics{
+			Repositories: []models.RepositoryMetrics{
+				{
+					FullName: "owner/repo",
+					Contributors: []models.ContributorMetrics{
+						{
+							Login:                   "cleanup-expert",
+							CommitCount:             50,
+							CommentLinesAdded:       100,
+							CommentLinesDeleted:     3000, // Should earn all deletion tiers
+							RepositoriesContributed: []string{"owner/repo"},
+						},
+					},
+				},
+			},
+		}
+
+		result := calc.Calculate(metrics)
+
+		contributor := result.Repositories[0].Contributors[0]
+		// Should have all comment cleanup achievements
+		assert.Contains(t, contributor.Achievements, "docs-del-50")
+		assert.Contains(t, contributor.Achievements, "docs-del-200")
+		assert.Contains(t, contributor.Achievements, "docs-del-500")
+		assert.Contains(t, contributor.Achievements, "docs-del-1000")
+		assert.Contains(t, contributor.Achievements, "docs-del-2500")
+	})
+
+	t.Run("aggregates comment lines across multiple repositories", func(t *testing.T) {
+		t.Parallel()
+
+		cfg := config.DefaultConfig()
+		cfg.Scoring.Enabled = true
+		calc := NewCalculator(cfg)
+
+		metrics := &models.GlobalMetrics{
+			Repositories: []models.RepositoryMetrics{
+				{
+					FullName: "owner/repo1",
+					Contributors: []models.ContributorMetrics{
+						{
+							Login:                   "multi-repo-doc",
+							CommitCount:             5,
+							CommentLinesAdded:       300,
+							CommentLinesDeleted:     30,
+							RepositoriesContributed: []string{"owner/repo1"},
+						},
+					},
+				},
+				{
+					FullName: "owner/repo2",
+					Contributors: []models.ContributorMetrics{
+						{
+							Login:                   "multi-repo-doc",
+							CommitCount:             5,
+							CommentLinesAdded:       300,
+							CommentLinesDeleted:     30,
+							RepositoriesContributed: []string{"owner/repo2"},
+						},
+					},
+				},
+			},
+		}
+
+		result := calc.Calculate(metrics)
+
+		// Check leaderboard entry (aggregated)
+		require.Len(t, result.Leaderboard, 1)
+		entry := result.Leaderboard[0]
+		// Aggregated: 300 + 300 = 600 comment lines added, 30 + 30 = 60 deleted
+		assert.Contains(t, entry.Achievements, "docs-100")
+		assert.Contains(t, entry.Achievements, "docs-500")
+		assert.NotContains(t, entry.Achievements, "docs-1000", "600 < 1000")
+		assert.Contains(t, entry.Achievements, "docs-del-50")
+		assert.NotContains(t, entry.Achievements, "docs-del-200", "60 < 200")
+	})
+}

internal/generator/site/dist/index.html

@@ -8,9 +8,9 @@
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
-  <script type="module" crossorigin src="./assets/index-C2QviOxm.js"></script>
+  <script type="module" crossorigin src="./assets/index-LBN7XWrH.js"></script>
   <link rel="modulepreload" crossorigin href="./assets/chart-Bcjh2pZL.js">
-  <link rel="stylesheet" crossorigin href="./assets/index-CmyGiR94.css">
+  <link rel="stylesheet" crossorigin href="./assets/index-8XjWwD9J.css">
 </head>
 <body class="min-h-screen bg-gradient-to-br from-gray-50 to-gray-100 dark:from-gray-900 dark:to-gray-800 font-sans transition-colors duration-300">
     <div id="app"></div>

internal/generator/site/generator.go

@@ -106,23 +106,15 @@ func (g *Generator) generateDataFiles(metrics *models.GlobalMetrics) error {
 		}
 	}
 
-	// Per-contributor data
-	contributorsSeen := make(map[string]bool)
+	// Per-contributor data (use aggregated global contributors, not per-repo)
 	contributorDir := filepath.Join(dataDir, "contributors")
 	if err := os.MkdirAll(contributorDir, 0750); err != nil {
 		return err
 	}
 
-	for _, repo := range metrics.Repositories {
-		for _, contributor := range repo.Contributors {
-			if contributorsSeen[contributor.Login] {
-				continue
-			}
-			contributorsSeen[contributor.Login] = true
-
-			if err := writeJSON(filepath.Join(contributorDir, contributor.Login+".json"), contributor); err != nil {
-				return err
-			}
+	for _, contributor := range metrics.Contributors {
+		if err := writeJSON(filepath.Join(contributorDir, contributor.Login+".json"), contributor); err != nil {
+			return err
 		}
 	}
 

internal/generator/site/generator_test.go

@@ -254,17 +254,14 @@ func TestGenerator_GenerateContributorJSON(t *testing.T) {
 	gen, err := NewGenerator(tempDir, cfg)
 	require.NoError(t, err)
 
+	// Generator now uses global Contributors, not per-repo Contributors
 	metrics := &models.GlobalMetrics{
-		Repositories: []models.RepositoryMetrics{
+		Contributors: []models.ContributorMetrics{
 			{
-				Contributors: []models.ContributorMetrics{
-					{
-						Login:       "john-doe",
-						Name:        "John Doe",
-						CommitCount: 50,
-						PRsOpened:   10,
-					},
-				},
+				Login:       "john-doe",
+				Name:        "John Doe",
+				CommitCount: 50,
+				PRsOpened:   10,
 			},
 		},
 	}
@@ -287,33 +284,43 @@ func TestGenerator_GenerateContributorJSON(t *testing.T) {
 	assert.Equal(t, 10, result.PRsOpened)
 }
 
-func TestGenerator_ContributorDeduplication(t *testing.T) {
+func TestGenerator_UsesGlobalContributorsNotPerRepo(t *testing.T) {
 	tempDir := t.TempDir()
 
 	cfg := config.DefaultConfig()
 	gen, err := NewGenerator(tempDir, cfg)
 	require.NoError(t, err)
 
-	// Same contributor in multiple repos
+	// Same contributor in multiple repos with different per-repo stats
+	// But GlobalMetrics.Contributors should have AGGREGATED stats
 	metrics := &models.GlobalMetrics{
+		// Per-repo data (used for repository-specific pages)
 		Repositories: []models.RepositoryMetrics{
 			{
+				Owner: "org",
+				Name:  "repo1",
 				Contributors: []models.ContributorMetrics{
-					{Login: "user1", CommitCount: 50},
+					{Login: "user1", CommitCount: 50, PRsOpened: 5},
 				},
 			},
 			{
+				Owner: "org",
+				Name:  "repo2",
 				Contributors: []models.ContributorMetrics{
-					{Login: "user1", CommitCount: 75}, // Same user, different count
+					{Login: "user1", CommitCount: 75, PRsOpened: 10}, // Same user, different count
 				},
 			},
 		},
+		// Global aggregated data (this is what the generator should use for contributor files)
+		Contributors: []models.ContributorMetrics{
+			{Login: "user1", CommitCount: 125, PRsOpened: 15}, // Sum: 50+75=125, 5+10=15
+		},
 	}
 
 	err = gen.Generate(metrics)
 	require.NoError(t, err)
 
-	// Should only have one contributor file (first one seen)
+	// Contributor file should have AGGREGATED data from GlobalMetrics.Contributors
 	contributorPath := filepath.Join(tempDir, "data", "contributors", "user1.json")
 	data, err := os.ReadFile(contributorPath)
 	require.NoError(t, err)
@@ -322,8 +329,84 @@ func TestGenerator_ContributorDeduplication(t *testing.T) {
 	err = json.Unmarshal(data, &result)
 	require.NoError(t, err)
 
-	// Should be the first one (50 commits)
-	assert.Equal(t, 50, result.CommitCount)
+	// Should be the aggregated count (125 commits, 15 PRs), NOT 50 or 75
+	assert.Equal(t, 125, result.CommitCount, "Should use aggregated commits from GlobalMetrics.Contributors")
+	assert.Equal(t, 15, result.PRsOpened, "Should use aggregated PRs from GlobalMetrics.Contributors")
+}
+
+func TestGenerator_MultipleContributorsAcrossRepos(t *testing.T) {
+	tempDir := t.TempDir()
+
+	cfg := config.DefaultConfig()
+	gen, err := NewGenerator(tempDir, cfg)
+	require.NoError(t, err)
+
+	// Multiple contributors across multiple repos with aggregated global data
+	metrics := &models.GlobalMetrics{
+		Repositories: []models.RepositoryMetrics{
+			{
+				Owner: "org",
+				Name:  "repo1",
+				Contributors: []models.ContributorMetrics{
+					{Login: "alice", CommitCount: 100, LinesAdded: 5000},
+					{Login: "bob", CommitCount: 50, LinesAdded: 2000},
+				},
+			},
+			{
+				Owner: "org",
+				Name:  "repo2",
+				Contributors: []models.ContributorMetrics{
+					{Login: "alice", CommitCount: 50, LinesAdded: 3000},
+					{Login: "charlie", CommitCount: 75, LinesAdded: 4000},
+				},
+			},
+		},
+		// Aggregated global contributors
+		Contributors: []models.ContributorMetrics{
+			{Login: "alice", CommitCount: 150, LinesAdded: 8000},  // 100+50, 5000+3000
+			{Login: "bob", CommitCount: 50, LinesAdded: 2000},     // Only in repo1
+			{Login: "charlie", CommitCount: 75, LinesAdded: 4000}, // Only in repo2
+		},
+	}
+
+	err = gen.Generate(metrics)
+	require.NoError(t, err)
+
+	// Verify alice has aggregated data
+	alicePath := filepath.Join(tempDir, "data", "contributors", "alice.json")
+	aliceData, err := os.ReadFile(alicePath)
+	require.NoError(t, err)
+
+	var aliceResult models.ContributorMetrics
+	err = json.Unmarshal(aliceData, &aliceResult)
+	require.NoError(t, err)
+
+	assert.Equal(t, 150, aliceResult.CommitCount, "Alice should have aggregated commits")
+	assert.Equal(t, 8000, aliceResult.LinesAdded, "Alice should have aggregated lines added")
+
+	// Verify bob exists with his data
+	bobPath := filepath.Join(tempDir, "data", "contributors", "bob.json")
+	bobData, err := os.ReadFile(bobPath)
+	require.NoError(t, err)
+
+	var bobResult models.ContributorMetrics
+	err = json.Unmarshal(bobData, &bobResult)
+	require.NoError(t, err)
+
+	assert.Equal(t, 50, bobResult.CommitCount)
+	assert.Equal(t, 2000, bobResult.LinesAdded)
+
+	// Verify charlie exists with his data
+	charliePath := filepath.Join(tempDir, "data", "contributors", "charlie.json")
+	charlieData, err := os.ReadFile(charliePath)
+	require.NoError(t, err)
+
+	var charlieResult models.ContributorMetrics
+	err = json.Unmarshal(charlieData, &charlieResult)
+	require.NoError(t, err)
+
+	assert.Equal(t, 75, charlieResult.CommitCount)
+	assert.Equal(t, 4000, charlieResult.LinesAdded)
 }
 
 func TestGenerator_NoTeamsDoesNotCreateTeamDir(t *testing.T) {
@@ -466,6 +549,12 @@ func TestGenerator_GenerateWithFullMetrics(t *testing.T) {
 				},
 			},
 		},
+		// Global aggregated contributors (used for individual contributor files)
+		Contributors: []models.ContributorMetrics{
+			{Login: "alice", Name: "Alice", CommitCount: 150},     // 100+50 aggregated
+			{Login: "bob", Name: "Bob", CommitCount: 200},         // Only in repo1
+			{Login: "charlie", Name: "Charlie", CommitCount: 150}, // Only in repo2
+		},
 		Teams: []models.TeamMetrics{
 			{
 				Name:       "Core Team",
@@ -499,4 +588,15 @@ func TestGenerator_GenerateWithFullMetrics(t *testing.T) {
 		_, err := os.Stat(path)
 		assert.NoError(t, err, "Expected file to exist: %s", path)
 	}
+
+	// Verify alice's file has aggregated data (150 commits, not 100 from first repo)
+	alicePath := filepath.Join(tempDir, "data", "contributors", "alice.json")
+	aliceData, err := os.ReadFile(alicePath)
+	require.NoError(t, err)
+
+	var aliceResult models.ContributorMetrics
+	err = json.Unmarshal(aliceData, &aliceResult)
+	require.NoError(t, err)
+
+	assert.Equal(t, 150, aliceResult.CommitCount, "Alice should have aggregated commits from global Contributors")
 }

internal/git/repository.go

@@ -14,6 +14,7 @@ import (
 	"github.com/go-git/go-git/v5/plumbing"
 	"github.com/go-git/go-git/v5/plumbing/object"
 	"github.com/go-git/go-git/v5/plumbing/transport/http"
+	"github.com/lukaszraczylo/git-velocity/internal/diff"
 	"github.com/lukaszraczylo/git-velocity/internal/domain/models"
 )
 
@@ -128,56 +129,6 @@ func (r *Repository) fetch(ctx context.Context, repoPath, token string) error {
 	return nil
 }
 
-// isCommentLine checks if a line is a code comment (should not count as contribution)
-func isCommentLine(line string) bool {
-	trimmed := strings.TrimSpace(line)
-	if trimmed == "" {
-		return true // Empty lines don't count
-	}
-
-	// Common comment patterns across languages
-	commentPrefixes := []string{
-		"//",     // C, C++, Java, Go, JS, etc.
-		"#",      // Python, Ruby, Shell, YAML
-		"/*",     // C-style block comment start
-		"*/",     // C-style block comment end
-		"*",      // C-style block comment continuation
-		"<!--",   // HTML/XML comment
-		"-->",    // HTML/XML comment end
-		"--",     // SQL, Lua, Haskell
-		";",      // Assembly, Lisp, INI files
-		"'",      // VB comment
-		"\"\"\"", // Python docstring
-		"'''",    // Python docstring
-	}
-
-	for _, prefix := range commentPrefixes {
-		if strings.HasPrefix(trimmed, prefix) {
-			return true
-		}
-	}
-
-	return false
-}
-
-// isDocumentationFile checks if a file is documentation-only
-func isDocumentationFile(filename string) bool {
-	// Documentation file extensions and patterns
-	docPatterns := []string{
-		".md", ".markdown", ".rst", ".txt", ".adoc",
-		"README", "CHANGELOG", "LICENSE", "CONTRIBUTING",
-		"docs/", "documentation/", "/doc/",
-	}
-
-	lowerFilename := strings.ToLower(filename)
-	for _, pattern := range docPatterns {
-		if strings.Contains(lowerFilename, strings.ToLower(pattern)) {
-			return true
-		}
-	}
-	return false
-}
-
 // FetchCommits retrieves commits from the local repository using go-git
 func (r *Repository) FetchCommits(ctx context.Context, owner, name string, since, until *time.Time) ([]models.Commit, error) {
 	repoPath := r.repoPath(owner, name)
@@ -242,7 +193,7 @@ func (r *Repository) FetchCommits(ctx context.Context, owner, name string, since
 			}
 
 			// Get file stats for this commit
-			additions, deletions, filesChanged, hasTests := r.getCommitStats(c, testPatterns)
+			stats := r.getCommitStats(c, testPatterns)
 
 			// Extract login from email
 			authorLogin := extractLoginFromEmail(c.Author.Email, c.Author.Name)
@@ -261,13 +212,17 @@ func (r *Repository) FetchCommits(ctx context.Context, owner, name string, since
 					Name:  c.Committer.Name,
 					Email: c.Committer.Email,
 				},
-				Date:         commitTime,
-				Additions:    additions,
-				Deletions:    deletions,
-				FilesChanged: filesChanged,
-				Repository:   fmt.Sprintf("%s/%s", owner, name),
-				URL:          fmt.Sprintf("https://github.com/%s/%s/commit/%s", owner, name, c.Hash.String()),
-				HasTests:     hasTests,
+				Date:                commitTime,
+				Additions:           stats.Additions,
+				Deletions:           stats.Deletions,
+				MeaningfulAdditions: stats.MeaningfulAdditions,
+				MeaningfulDeletions: stats.MeaningfulDeletions,
+				CommentAdditions:    stats.CommentAdditions,
+				CommentDeletions:    stats.CommentDeletions,
+				FilesChanged:        stats.FilesChanged,
+				Repository:          fmt.Sprintf("%s/%s", owner, name),
+				URL:                 fmt.Sprintf("https://github.com/%s/%s/commit/%s", owner, name, c.Hash.String()),
+				HasTests:            stats.HasTests,
 			}
 
 			commits = append(commits, commit)
@@ -286,8 +241,22 @@ func (r *Repository) FetchCommits(ctx context.Context, owner, name string, since
 	return commits, nil
 }
 
+// commitStats holds the statistics for a commit
+type commitStats struct {
+	Additions           int
+	Deletions           int
+	MeaningfulAdditions int
+	MeaningfulDeletions int
+	CommentAdditions    int
+	CommentDeletions    int
+	FilesChanged        int
+	HasTests            bool
+}
+
 // getCommitStats calculates additions, deletions, files changed for a commit
-func (r *Repository) getCommitStats(c *object.Commit, testPatterns []string) (additions, deletions, filesChanged int, hasTests bool) {
+func (r *Repository) getCommitStats(c *object.Commit, testPatterns []string) commitStats {
+	stats := commitStats{}
+
 	// Get parent commit for diff
 	parentIter := c.Parents()
 	parent, err := parentIter.Next()
@@ -299,7 +268,7 @@ func (r *Repository) getCommitStats(c *object.Commit, testPatterns []string) (ad
 
 	currentTree, err := c.Tree()
 	if err != nil {
-		return 0, 0, 0, false
+		return stats
 	}
 
 	// Get changes between parent and current
@@ -312,7 +281,7 @@ func (r *Repository) getCommitStats(c *object.Commit, testPatterns []string) (ad
 	}
 
 	if err != nil {
-		return 0, 0, 0, false
+		return stats
 	}
 
 	filesSet := make(map[string]bool)
@@ -327,19 +296,19 @@ func (r *Repository) getCommitStats(c *object.Commit, testPatterns []string) (ad
 		}
 
 		// Skip documentation files
-		if isDocumentationFile(filePath) {
+		if diff.IsDocumentationFile(filePath) {
 			continue
 		}
 
 		// Count unique files
 		if !filesSet[filePath] {
 			filesSet[filePath] = true
-			filesChanged++
+			stats.FilesChanged++
 
 			// Check for test files
 			for _, pattern := range testPatterns {
 				if strings.Contains(filePath, pattern) {
-					hasTests = true
+					stats.HasTests = true
 					break
 				}
 			}
@@ -359,14 +328,20 @@ func (r *Repository) getCommitStats(c *object.Commit, testPatterns []string) (ad
 				switch chunk.Type() {
 				case 1: // Add
 					for _, line := range lines {
-						if !isCommentLine(line) {
-							additions++
+						stats.Additions++
+						if diff.IsMeaningfulLine(line) {
+							stats.MeaningfulAdditions++
+						} else if diff.IsCommentLine(line) && !diff.IsWhitespaceLine(line) {
+							stats.CommentAdditions++
 						}
 					}
 				case 2: // Delete
 					for _, line := range lines {
-						if !isCommentLine(line) {
-							deletions++
+						stats.Deletions++
+						if diff.IsMeaningfulLine(line) {
+							stats.MeaningfulDeletions++
+						} else if diff.IsCommentLine(line) && !diff.IsWhitespaceLine(line) {
+							stats.CommentDeletions++
 						}
 					}
 				}
@@ -374,7 +349,7 @@ func (r *Repository) getCommitStats(c *object.Commit, testPatterns []string) (ad
 		}
 	}
 
-	return additions, deletions, filesChanged, hasTests
+	return stats
 }
 
 // extractLoginFromEmail tries to extract GitHub login from email

internal/github/client.go

@@ -13,6 +13,7 @@ import (
 	"github.com/google/go-github/v68/github"
 
 	"github.com/lukaszraczylo/git-velocity/internal/config"
+	"github.com/lukaszraczylo/git-velocity/internal/diff"
 	"github.com/lukaszraczylo/git-velocity/internal/domain/models"
 	"github.com/lukaszraczylo/git-velocity/internal/github/cache"
 )
@@ -726,10 +727,15 @@ func convertCommit(c *github.RepositoryCommit, owner, repo string) models.Commit
 	}
 	filesChanged = len(c.Files)
 
-	// Detect if commit includes tests
+	// Detect if commit includes tests and calculate meaningful/comment line counts
 	hasTests := false
+	var meaningfulAdditions, meaningfulDeletions int
+	var commentAdditions, commentDeletions int
+
 	for _, f := range c.Files {
 		filename := f.GetFilename()
+
+		// Check for test files
 		if strings.Contains(filename, "_test.go") ||
 			strings.Contains(filename, ".test.") ||
 			strings.Contains(filename, ".spec.") ||
@@ -737,7 +743,21 @@ func convertCommit(c *github.RepositoryCommit, owner, repo string) models.Commit
 			strings.Contains(filename, "/test/") ||
 			strings.Contains(filename, "__tests__") {
 			hasTests = true
-			break
+		}
+
+		// Skip documentation files for meaningful line calculation
+		if diff.IsDocumentationFile(filename) {
+			continue
+		}
+
+		// Analyze file patch to get meaningful and comment line counts
+		patch := f.GetPatch()
+		if patch != "" {
+			stats := diff.AnalyzePatch(patch)
+			meaningfulAdditions += stats.MeaningfulAdditions
+			meaningfulDeletions += stats.MeaningfulDeletions
+			commentAdditions += stats.CommentAdditions
+			commentDeletions += stats.CommentDeletions
 		}
 	}
 
@@ -747,17 +767,21 @@ func convertCommit(c *github.RepositoryCommit, owner, repo string) models.Commit
 	}
 
 	return models.Commit{
-		SHA:          c.GetSHA(),
-		Message:      message,
-		Author:       author,
-		Committer:    committer,
-		Date:         date,
-		Additions:    additions,
-		Deletions:    deletions,
-		FilesChanged: filesChanged,
-		Repository:   fmt.Sprintf("%s/%s", owner, repo),
-		URL:          c.GetHTMLURL(),
-		HasTests:     hasTests,
+		SHA:                 c.GetSHA(),
+		Message:             message,
+		Author:              author,
+		Committer:           committer,
+		Date:                date,
+		Additions:           additions,
+		Deletions:           deletions,
+		MeaningfulAdditions: meaningfulAdditions,
+		MeaningfulDeletions: meaningfulDeletions,
+		CommentAdditions:    commentAdditions,
+		CommentDeletions:    commentDeletions,
+		FilesChanged:        filesChanged,
+		Repository:          fmt.Sprintf("%s/%s", owner, repo),
+		URL:                 c.GetHTMLURL(),
+		HasTests:            hasTests,
 	}
 }
 

internal/server/server.go

@@ -24,26 +24,13 @@ func New(directory, port string) *Server {
 
 // Start starts the HTTP server
 func (s *Server) Start() error {
-	// Check if directory exists
-	if _, err := os.Stat(s.directory); os.IsNotExist(err) {
-		return fmt.Errorf("directory does not exist: %s", s.directory)
-	}
-
-	// Get absolute path
-	absPath, err := filepath.Abs(s.directory)
+	handler, err := s.CreateHandler()
 	if err != nil {
-		return fmt.Errorf("failed to get absolute path: %w", err)
+		return err
 	}
 
-	// Create file server with directory listing disabled for security
-	fs := http.FileServer(http.Dir(absPath))
-
-	// Wrap with middleware
-	handler := s.loggingMiddleware(s.cacheMiddleware(fs))
-
-	addr := fmt.Sprintf(":%s", s.port)
 	srv := &http.Server{
-		Addr:              addr,
+		Addr:              s.GetAddress(),
 		Handler:           handler,
 		ReadTimeout:       15 * time.Second,
 		ReadHeaderTimeout: 15 * time.Second,
@@ -75,3 +62,34 @@ func (s *Server) cacheMiddleware(next http.Handler) http.Handler {
 		next.ServeHTTP(w, r)
 	})
 }
+
+// CreateHandler creates and returns the HTTP handler without starting the server.
+// This is useful for testing and for embedding the server in other applications.
+func (s *Server) CreateHandler() (http.Handler, error) {
+	// Check if directory exists
+	if _, err := os.Stat(s.directory); os.IsNotExist(err) {
+		return nil, fmt.Errorf("directory does not exist: %s", s.directory)
+	}
+
+	// Get absolute path
+	absPath, err := filepath.Abs(s.directory)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get absolute path: %w", err)
+	}
+
+	// Create file server with directory listing disabled for security
+	fs := http.FileServer(http.Dir(absPath))
+
+	// Wrap with middleware
+	return s.loggingMiddleware(s.cacheMiddleware(fs)), nil
+}
+
+// GetAddress returns the server address in the format :port
+func (s *Server) GetAddress() string {
+	return fmt.Sprintf(":%s", s.port)
+}
+
+// GetDirectory returns the directory being served
+func (s *Server) GetDirectory() string {
+	return s.directory
+}

internal/server/server_test.go

@@ -207,3 +207,231 @@ func TestServer_ServesIndexHtml(t *testing.T) {
 	body, _ := io.ReadAll(resp.Body)
 	assert.Contains(t, string(body), "Test Page")
 }
+
+func TestServer_CreateHandler(t *testing.T) {
+	tempDir := t.TempDir()
+
+	// Create an index.html
+	indexFile := filepath.Join(tempDir, "index.html")
+	err := os.WriteFile(indexFile, []byte("<html><body>Handler Test</body></html>"), 0644)
+	require.NoError(t, err)
+
+	s := New(tempDir, "8080")
+
+	handler, err := s.CreateHandler()
+	require.NoError(t, err)
+
+	ts := httptest.NewServer(handler)
+	defer ts.Close()
+
+	resp, err := http.Get(ts.URL + "/")
+	require.NoError(t, err)
+	defer resp.Body.Close()
+
+	assert.Equal(t, http.StatusOK, resp.StatusCode)
+	body, _ := io.ReadAll(resp.Body)
+	assert.Contains(t, string(body), "Handler Test")
+
+	// Check middleware headers are applied
+	assert.Equal(t, "no-cache, no-store, must-revalidate", resp.Header.Get("Cache-Control"))
+	assert.Equal(t, "*", resp.Header.Get("Access-Control-Allow-Origin"))
+}
+
+func TestServer_CreateHandlerWithNonExistentDirectory(t *testing.T) {
+	t.Parallel()
+
+	s := New("/this/directory/does/not/exist", "8080")
+
+	handler, err := s.CreateHandler()
+	assert.Error(t, err)
+	assert.Nil(t, handler)
+	assert.Contains(t, err.Error(), "directory does not exist")
+}
+
+func TestServer_GetAddress(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name     string
+		port     string
+		expected string
+	}{
+		{"standard port", "8080", ":8080"},
+		{"different port", "3000", ":3000"},
+		{"port 0 for random", "0", ":0"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			s := New(".", tt.port)
+			assert.Equal(t, tt.expected, s.GetAddress())
+		})
+	}
+}
+
+func TestServer_GetDirectory(t *testing.T) {
+	t.Parallel()
+
+	s := New("/some/path", "8080")
+	assert.Equal(t, "/some/path", s.GetDirectory())
+}
+
+func TestServer_ServesJSONWithCorrectContentType(t *testing.T) {
+	tempDir := t.TempDir()
+
+	// Create a JSON file
+	jsonFile := filepath.Join(tempDir, "data.json")
+	err := os.WriteFile(jsonFile, []byte(`{"status": "ok"}`), 0644)
+	require.NoError(t, err)
+
+	s := New(tempDir, "0")
+	handler, err := s.CreateHandler()
+	require.NoError(t, err)
+
+	ts := httptest.NewServer(handler)
+	defer ts.Close()
+
+	resp, err := http.Get(ts.URL + "/data.json")
+	require.NoError(t, err)
+	defer resp.Body.Close()
+
+	assert.Equal(t, http.StatusOK, resp.StatusCode)
+	// Check content type is JSON
+	contentType := resp.Header.Get("Content-Type")
+	assert.Contains(t, contentType, "application/json")
+}
+
+func TestServer_ServesHTMLWithCorrectContentType(t *testing.T) {
+	tempDir := t.TempDir()
+
+	// Create an HTML file
+	htmlFile := filepath.Join(tempDir, "page.html")
+	err := os.WriteFile(htmlFile, []byte("<html><body>HTML Page</body></html>"), 0644)
+	require.NoError(t, err)
+
+	s := New(tempDir, "0")
+	handler, err := s.CreateHandler()
+	require.NoError(t, err)
+
+	ts := httptest.NewServer(handler)
+	defer ts.Close()
+
+	resp, err := http.Get(ts.URL + "/page.html")
+	require.NoError(t, err)
+	defer resp.Body.Close()
+
+	assert.Equal(t, http.StatusOK, resp.StatusCode)
+	// Check content type is HTML
+	contentType := resp.Header.Get("Content-Type")
+	assert.Contains(t, contentType, "text/html")
+}
+
+func TestServer_CORSHeaders(t *testing.T) {
+	tempDir := t.TempDir()
+
+	// Create a test file
+	testFile := filepath.Join(tempDir, "test.txt")
+	err := os.WriteFile(testFile, []byte("test content"), 0644)
+	require.NoError(t, err)
+
+	s := New(tempDir, "0")
+	handler, err := s.CreateHandler()
+	require.NoError(t, err)
+
+	ts := httptest.NewServer(handler)
+	defer ts.Close()
+
+	resp, err := http.Get(ts.URL + "/test.txt")
+	require.NoError(t, err)
+	defer resp.Body.Close()
+
+	// Check CORS header
+	assert.Equal(t, "*", resp.Header.Get("Access-Control-Allow-Origin"))
+}
+
+func TestServer_CacheDisabledHeaders(t *testing.T) {
+	tempDir := t.TempDir()
+
+	// Create a test file
+	testFile := filepath.Join(tempDir, "test.txt")
+	err := os.WriteFile(testFile, []byte("test content"), 0644)
+	require.NoError(t, err)
+
+	s := New(tempDir, "0")
+	handler, err := s.CreateHandler()
+	require.NoError(t, err)
+
+	ts := httptest.NewServer(handler)
+	defer ts.Close()
+
+	resp, err := http.Get(ts.URL + "/test.txt")
+	require.NoError(t, err)
+	defer resp.Body.Close()
+
+	// Check cache headers are disabled for development
+	assert.Equal(t, "no-cache, no-store, must-revalidate", resp.Header.Get("Cache-Control"))
+	assert.Equal(t, "no-cache", resp.Header.Get("Pragma"))
+	assert.Equal(t, "0", resp.Header.Get("Expires"))
+}
+
+func TestServer_LoggingMiddlewareWithDifferentMethods(t *testing.T) {
+	t.Parallel()
+
+	s := New(".", "8080")
+
+	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+	})
+
+	wrapped := s.loggingMiddleware(handler)
+
+	methods := []string{"GET", "POST", "PUT", "DELETE", "HEAD", "OPTIONS"}
+	for _, method := range methods {
+		t.Run(method, func(t *testing.T) {
+			req := httptest.NewRequest(method, "/test-path", nil)
+			rr := httptest.NewRecorder()
+
+			wrapped.ServeHTTP(rr, req)
+
+			assert.Equal(t, http.StatusOK, rr.Code)
+		})
+	}
+}
+
+func TestServer_CacheMiddlewarePreservesResponseBody(t *testing.T) {
+	t.Parallel()
+
+	s := New(".", "8080")
+
+	expectedBody := "This is the response body content"
+	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(expectedBody))
+	})
+
+	wrapped := s.cacheMiddleware(handler)
+
+	req := httptest.NewRequest("GET", "/test", nil)
+	rr := httptest.NewRecorder()
+
+	wrapped.ServeHTTP(rr, req)
+
+	body, _ := io.ReadAll(rr.Body)
+	assert.Equal(t, expectedBody, string(body))
+}
+
+func TestNew_WithEmptyValues(t *testing.T) {
+	t.Parallel()
+
+	s := New("", "")
+	assert.Equal(t, "", s.directory)
+	assert.Equal(t, "", s.port)
+}
+
+func TestNew_WithSpecialCharactersInPath(t *testing.T) {
+	t.Parallel()
+
+	path := "/path/with spaces/and-dashes/and_underscores"
+	s := New(path, "8080")
+	assert.Equal(t, path, s.directory)
+}

web/src/components/AchievementBadge.vue

@@ -29,97 +29,153 @@ const getTierFromThreshold = (threshold) => {
   return 1
 }
 
-// Extract threshold from achievement ID (e.g., "commit-100" -> 100)
+// Extract threshold from achievement ID (e.g., "commit-100" -> 100, "docs-del-50" -> 50)
 const extractThreshold = (id) => {
   const match = id.match(/(\d+)$/)
   if (match) return parseInt(match[1], 10)
-  // Special cases for non-numeric achievements
-  if (id === 'first-commit' || id === 'pr-opener' || id === 'reviewer') return 1
   return 50 // Default for special achievements
 }
 
-// Achievement definitions matching the Go backend
+// Achievement definitions matching the Go backend (internal/config/schema.go)
 const achievements = {
-  // Commit achievements - Journey from apprentice to legend
-  'first-commit': { name: 'Hello World', description: 'Made your first commit', icon: 'fa-baby' },
-  'commit-10': { name: 'Seedling', description: 'Made 10 commits', icon: 'fa-seedling' },
-  'commit-25': { name: 'Momentum', description: 'Made 25 commits', icon: 'fa-wind' },
-  'commit-50': { name: 'Trailblazer', description: 'Made 50 commits', icon: 'fa-hiking' },
-  'commit-100': { name: 'Centurion', description: 'Made 100 commits', icon: 'fa-shield-halved' },
-  'commit-250': { name: 'Relentless', description: 'Made 250 commits', icon: 'fa-bolt-lightning' },
-  'commit-500': { name: 'Unstoppable', description: 'Made 500 commits', icon: 'fa-meteor' },
-  'commit-1000': { name: 'Grandmaster', description: 'Made 1000 commits', icon: 'fa-chess-king' },
-  'commit-5000': { name: 'Titan', description: 'Made 5000 commits', icon: 'fa-mountain-sun' },
-  'commit-10000': { name: 'Immortal', description: 'Made 10000 commits', icon: 'fa-dragon' },
-  'commit-25000': { name: 'Ascended', description: 'Made 25000 commits', icon: 'fa-infinity' },
+  // ===== COMMIT COUNT (Tiers: 1, 10, 50, 100, 500, 1000) =====
+  'commit-1': { name: 'First Steps', description: 'Made your first commit', icon: 'fa-baby' },
+  'commit-10': { name: 'Getting Started', description: 'Made 10 commits', icon: 'fa-seedling' },
+  'commit-50': { name: 'Contributor', description: 'Made 50 commits', icon: 'fa-code' },
+  'commit-100': { name: 'Committed', description: 'Made 100 commits', icon: 'fa-fire' },
+  'commit-500': { name: 'Code Machine', description: 'Made 500 commits', icon: 'fa-robot' },
+  'commit-1000': { name: 'Code Warrior', description: 'Made 1000 commits', icon: 'fa-crown' },
 
-  // PR achievements - The art of collaboration
-  'pr-opener': { name: 'First Blood', description: 'Opened your first pull request', icon: 'fa-flag-checkered' },
-  'pr-10': { name: 'Collaborator', description: 'Opened 10 pull requests', icon: 'fa-handshake' },
-  'pr-25': { name: 'Integrator', description: 'Opened 25 pull requests', icon: 'fa-code-branch' },
-  'pr-50': { name: 'Architect', description: 'Opened 50 pull requests', icon: 'fa-building' },
-  'pr-100': { name: 'Vanguard', description: 'Opened 100 pull requests', icon: 'fa-rocket' },
+  // ===== PR OPENED (Tiers: 1, 10, 25, 50, 100, 250) =====
+  'pr-1': { name: 'PR Pioneer', description: 'Opened your first pull request', icon: 'fa-code-pull-request' },
+  'pr-10': { name: 'PR Regular', description: 'Opened 10 pull requests', icon: 'fa-code-branch' },
+  'pr-25': { name: 'PR Pro', description: 'Opened 25 pull requests', icon: 'fa-code-compare' },
+  'pr-50': { name: 'Merge Master', description: 'Opened 50 pull requests', icon: 'fa-code-merge' },
+  'pr-100': { name: 'PR Champion', description: 'Opened 100 pull requests', icon: 'fa-trophy' },
+  'pr-250': { name: 'PR Legend', description: 'Opened 250 pull requests', icon: 'fa-medal' },
 
-  // Review achievements - The guardian path
-  'reviewer': { name: 'Watchful Eye', description: 'Reviewed your first pull request', icon: 'fa-eye' },
-  'reviewer-10': { name: 'Sentinel', description: 'Reviewed 10 pull requests', icon: 'fa-shield' },
-  'reviewer-25': { name: 'Gatekeeper', description: 'Reviewed 25 pull requests', icon: 'fa-dungeon' },
-  'reviewer-50': { name: 'Oracle', description: 'Reviewed 50 pull requests', icon: 'fa-hat-wizard' },
-  'reviewer-100': { name: 'Sage', description: 'Reviewed 100 pull requests', icon: 'fa-book-skull' },
+  // ===== REVIEWS (Tiers: 1, 10, 25, 50, 100, 250) =====
+  'review-1': { name: 'First Review', description: 'Reviewed your first pull request', icon: 'fa-magnifying-glass' },
+  'review-10': { name: 'Reviewer', description: 'Reviewed 10 pull requests', icon: 'fa-eye' },
+  'review-25': { name: 'Review Regular', description: 'Reviewed 25 pull requests', icon: 'fa-glasses' },
+  'review-50': { name: 'Review Expert', description: 'Reviewed 50 pull requests', icon: 'fa-user-check' },
+  'review-100': { name: 'Review Guru', description: 'Reviewed 100 pull requests', icon: 'fa-user-graduate' },
+  'review-250': { name: 'Review Master', description: 'Reviewed 250 pull requests', icon: 'fa-award' },
 
-  // Speed achievements - Time is of the essence
-  'speed-demon': { name: 'Lightning Rod', description: 'Average review response under 1 hour', icon: 'fa-bolt' },
-  'quick-responder': { name: 'Flash', description: 'Average review response under 4 hours', icon: 'fa-gauge-high' },
+  // ===== REVIEW COMMENTS (Tiers: 10, 50, 100, 250, 500) =====
+  'comment-10': { name: 'Commentator', description: 'Left 10 PR review comments', icon: 'fa-comment' },
+  'comment-50': { name: 'Feedback Giver', description: 'Left 50 PR review comments', icon: 'fa-comments' },
+  'comment-100': { name: 'Code Critic', description: 'Left 100 PR review comments', icon: 'fa-comment-dots' },
+  'comment-250': { name: 'Feedback Expert', description: 'Left 250 PR review comments', icon: 'fa-message' },
+  'comment-500': { name: 'Comment Champion', description: 'Left 500 PR review comments', icon: 'fa-scroll' },
 
-  // Comment achievements
-  'commentator': { name: 'Wordsmith', description: 'Left 50 PR review comments', icon: 'fa-feather-pointed' },
+  // ===== LINES ADDED (Tiers: 100, 1000, 5000, 10000, 50000) =====
+  'lines-added-100': { name: 'First Hundred', description: 'Added 100 lines of code', icon: 'fa-plus' },
+  'lines-added-1000': { name: 'Thousand Lines', description: 'Added 1000 lines of code', icon: 'fa-layer-group' },
+  'lines-added-5000': { name: 'Five Thousand', description: 'Added 5000 lines of code', icon: 'fa-cubes' },
+  'lines-added-10000': { name: 'Ten Thousand', description: 'Added 10000 lines of code', icon: 'fa-mountain' },
+  'lines-added-50000': { name: 'Code Mountain', description: 'Added 50000 lines of code', icon: 'fa-mountain-sun' },
 
-  // Lines of code achievements - Volume mastery
-  'lines-1000': { name: 'Scribe', description: 'Added 1000 lines of code', icon: 'fa-scroll' },
-  'lines-10000': { name: 'Novelist', description: 'Added 10000 lines of code', icon: 'fa-book' },
-  'lines-100000': { name: 'Encyclopedia', description: 'Added 100000 lines of code', icon: 'fa-landmark' },
+  // ===== LINES DELETED (Tiers: 100, 500, 1000, 5000, 10000) =====
+  'lines-deleted-100': { name: 'Tidying Up', description: 'Deleted 100 lines of code', icon: 'fa-eraser' },
+  'lines-deleted-500': { name: 'Spring Cleaning', description: 'Deleted 500 lines of code', icon: 'fa-broom' },
+  'lines-deleted-1000': { name: 'Code Cleaner', description: 'Deleted 1000 lines of code', icon: 'fa-trash-can' },
+  'lines-deleted-5000': { name: 'Refactoring Hero', description: 'Deleted 5000 lines of code', icon: 'fa-recycle' },
+  'lines-deleted-10000': { name: 'Deletion Master', description: 'Deleted 10000 lines of code', icon: 'fa-dumpster-fire' },
 
-  // Deletion achievements - The minimalist way
-  'cleaner': { name: 'Pruner', description: 'Deleted 1000 lines of code', icon: 'fa-scissors' },
-  'refactorer': { name: 'Surgeon', description: 'Deleted 10000 lines of code', icon: 'fa-syringe' },
-  'annihilator': { name: 'Annihilator', description: 'Deleted 100000 lines of code', icon: 'fa-explosion' },
+  // ===== REVIEW RESPONSE TIME (Tiers: 24h, 4h, 1h) =====
+  'review-time-24h': { name: 'Same Day Reviewer', description: 'Average review response under 24 hours', icon: 'fa-clock' },
+  'review-time-4h': { name: 'Quick Responder', description: 'Average review response under 4 hours', icon: 'fa-stopwatch' },
+  'review-time-1h': { name: 'Speed Demon', description: 'Average review response under 1 hour', icon: 'fa-bolt' },
 
-  // Multi-repo achievements - The wanderer
-  'multi-repo': { name: 'Nomad', description: 'Contributed to 5 repositories', icon: 'fa-compass' },
-  'multi-repo-10': { name: 'Explorer', description: 'Contributed to 10 repositories', icon: 'fa-map' },
+  // ===== MULTI-REPO (Tiers: 2, 5, 10) =====
+  'repo-2': { name: 'Multi-Repo', description: 'Contributed to 2 repositories', icon: 'fa-folder' },
+  'repo-5': { name: 'Repo Explorer', description: 'Contributed to 5 repositories', icon: 'fa-folder-tree' },
+  'repo-10': { name: 'Repo Master', description: 'Contributed to 10 repositories', icon: 'fa-network-wired' },
 
-  // Team collaboration - Social butterfly
-  'team-player': { name: 'Ambassador', description: 'Reviewed PRs from 10 different contributors', icon: 'fa-users' },
-  'team-player-25': { name: 'Diplomat', description: 'Reviewed PRs from 25 different contributors', icon: 'fa-globe' },
+  // ===== UNIQUE REVIEWEES (Tiers: 3, 10, 25) =====
+  'reviewees-3': { name: 'Helpful Colleague', description: 'Reviewed PRs from 3 different contributors', icon: 'fa-user-group' },
+  'reviewees-10': { name: 'Team Player', description: 'Reviewed PRs from 10 different contributors', icon: 'fa-people-group' },
+  'reviewees-25': { name: 'Community Pillar', description: 'Reviewed PRs from 25 different contributors', icon: 'fa-people-roof' },
 
-  // PR size achievements - Go big or go home
-  'big-pr': { name: 'Heavyweight', description: 'Merged a PR with 1000+ lines', icon: 'fa-dumbbell' },
-  'mega-pr': { name: 'Colossus', description: 'Merged a PR with 5000+ lines', icon: 'fa-monument' },
+  // ===== PR SIZE - LARGE (Tiers: 500, 1000, 5000) =====
+  'large-pr-500': { name: 'Big Change', description: 'Merged a PR with 500+ lines changed', icon: 'fa-expand' },
+  'large-pr-1000': { name: 'Heavy Lifter', description: 'Merged a PR with 1000+ lines changed', icon: 'fa-weight-hanging' },
+  'large-pr-5000': { name: 'Mega Merge', description: 'Merged a PR with 5000+ lines changed', icon: 'fa-dumbbell' },
 
-  // Small PR achievements - Precision strikes
-  'small-pr-10': { name: 'Minimalist', description: 'Merged 10 PRs under 100 lines', icon: 'fa-compress' },
-  'small-pr-50': { name: 'Atomic', description: 'Merged 50 PRs under 100 lines', icon: 'fa-atom' },
+  // ===== SMALL PRs (Tiers: 5, 10, 25, 50) =====
+  'small-pr-5': { name: 'Small Changes', description: 'Merged 5 PRs under 100 lines', icon: 'fa-compress' },
+  'small-pr-10': { name: 'Small PR Advocate', description: 'Merged 10 PRs under 100 lines', icon: 'fa-minimize' },
+  'small-pr-25': { name: 'Atomic Commits', description: 'Merged 25 PRs under 100 lines', icon: 'fa-atom' },
+  'small-pr-50': { name: 'Micro PR Master', description: 'Merged 50 PRs under 100 lines', icon: 'fa-microchip' },
 
-  // Perfect PR achievements - Flawless execution
-  'perfect-pr-5': { name: 'Sharpshooter', description: '5 PRs merged without changes requested', icon: 'fa-bullseye' },
-  'perfect-pr-25': { name: 'Perfectionist', description: '25 PRs merged without changes requested', icon: 'fa-gem' },
-  'perfect-pr-100': { name: 'Immaculate', description: '100 PRs merged without changes requested', icon: 'fa-crown' },
+  // ===== PERFECT PRs (Tiers: 1, 5, 10, 25) =====
+  'perfect-pr-1': { name: 'First Try', description: '1 PR merged without changes requested', icon: 'fa-check' },
+  'perfect-pr-5': { name: 'Clean Code', description: '5 PRs merged without changes requested', icon: 'fa-check-double' },
+  'perfect-pr-10': { name: 'Quality Author', description: '10 PRs merged without changes requested', icon: 'fa-circle-check' },
+  'perfect-pr-25': { name: 'Flawless', description: '25 PRs merged without changes requested', icon: 'fa-gem' },
 
-  // Streak achievements - Consistency is key
-  'streak-7': { name: 'Hot Streak', description: '7 day contribution streak', icon: 'fa-fire' },
-  'streak-30': { name: 'Ironclad', description: '30 day contribution streak', icon: 'fa-link' },
-  'streak-90': { name: 'Unbreakable', description: '90 day contribution streak', icon: 'fa-diamond' },
+  // ===== ACTIVE DAYS (Tiers: 7, 30, 60, 100) =====
+  'active-7': { name: 'Week Active', description: 'Active on 7 different days', icon: 'fa-calendar-day' },
+  'active-30': { name: 'Month Active', description: 'Active on 30 different days', icon: 'fa-calendar-week' },
+  'active-60': { name: 'Consistent Contributor', description: 'Active on 60 different days', icon: 'fa-chart-line' },
+  'active-100': { name: 'Dedicated Developer', description: 'Active on 100 different days', icon: 'fa-fire-flame-curved' },
 
-  // Time-based achievements - When you code matters
-  'early-bird': { name: 'Dawn Patrol', description: '50 commits before 9am', icon: 'fa-sun' },
-  'night-owl': { name: 'Nighthawk', description: '50 commits after 9pm', icon: 'fa-moon' },
-  'nosferatu': { name: 'Vampire', description: '25 commits between midnight and 4am', icon: 'fa-ghost' },
-  'weekend-warrior': { name: 'No Days Off', description: '25 weekend commits', icon: 'fa-calendar-xmark' },
+  // ===== LONGEST STREAK (Tiers: 3, 7, 14, 30) =====
+  'streak-3': { name: 'Getting Rolling', description: '3 day contribution streak', icon: 'fa-forward' },
+  'streak-7': { name: 'Week Warrior', description: '7 day contribution streak', icon: 'fa-calendar-week' },
+  'streak-14': { name: 'Two Week Streak', description: '14 day contribution streak', icon: 'fa-fire' },
+  'streak-30': { name: 'Month Master', description: '30 day contribution streak', icon: 'fa-calendar-check' },
 
-  // Activity achievements - Showing up matters
-  'active-30': { name: 'Reliable', description: 'Active on 30 different days', icon: 'fa-calendar-check' },
-  'active-100': { name: 'Stalwart', description: 'Active on 100 different days', icon: 'fa-tower-observation' },
-  'active-365': { name: 'Eternal', description: 'Active on 365 different days', icon: 'fa-sun-plant-wilt' }
+  // ===== WORK WEEK STREAK (Tiers: 3, 5, 10, 20) =====
+  'workweek-3': { name: 'Work Week Start', description: '3 consecutive weekday streak', icon: 'fa-briefcase' },
+  'workweek-5': { name: 'Full Work Week', description: '5 consecutive weekday streak', icon: 'fa-building' },
+  'workweek-10': { name: 'Two Week Grind', description: '10 consecutive weekday streak', icon: 'fa-business-time' },
+  'workweek-20': { name: 'Month of Mondays', description: '20 consecutive weekday streak', icon: 'fa-landmark' },
+
+  // ===== EARLY BIRD (Tiers: 10, 25, 50, 100) =====
+  'earlybird-10': { name: 'Early Riser', description: '10 commits before 9am', icon: 'fa-mug-hot' },
+  'earlybird-25': { name: 'Morning Person', description: '25 commits before 9am', icon: 'fa-cloud-sun' },
+  'earlybird-50': { name: 'Early Bird', description: '50 commits before 9am', icon: 'fa-sun' },
+  'earlybird-100': { name: 'Dawn Warrior', description: '100 commits before 9am', icon: 'fa-sunrise' },
+
+  // ===== NIGHT OWL (Tiers: 10, 25, 50, 100) =====
+  'nightowl-10': { name: 'Late Worker', description: '10 commits after 9pm', icon: 'fa-cloud-moon' },
+  'nightowl-25': { name: 'Evening Coder', description: '25 commits after 9pm', icon: 'fa-moon' },
+  'nightowl-50': { name: 'Night Owl', description: '50 commits after 9pm', icon: 'fa-star' },
+  'nightowl-100': { name: 'Nocturnal', description: '100 commits after 9pm', icon: 'fa-star-and-crescent' },
+
+  // ===== MIDNIGHT CODER (Tiers: 5, 10, 25, 50) =====
+  'midnight-5': { name: 'Night Shift', description: '5 commits between midnight and 4am', icon: 'fa-ghost' },
+  'midnight-10': { name: 'Insomniac', description: '10 commits between midnight and 4am', icon: 'fa-bed' },
+  'midnight-25': { name: 'Nosferatu', description: '25 commits between midnight and 4am', icon: 'fa-skull' },
+  'midnight-50': { name: 'Vampire Coder', description: '50 commits between midnight and 4am', icon: 'fa-skull-crossbones' },
+
+  // ===== WEEKEND WARRIOR (Tiers: 5, 10, 25, 50) =====
+  'weekend-5': { name: 'Weekend Work', description: '5 weekend commits', icon: 'fa-couch' },
+  'weekend-10': { name: 'Weekend Regular', description: '10 weekend commits', icon: 'fa-house-laptop' },
+  'weekend-25': { name: 'Weekend Warrior', description: '25 weekend commits', icon: 'fa-gamepad' },
+  'weekend-50': { name: 'No Days Off', description: '50 weekend commits', icon: 'fa-person-running' },
+
+  // ===== OUT OF HOURS (Tiers: 10, 25, 50, 100) =====
+  'ooh-10': { name: 'Extra Hours', description: '10 commits outside 9am-5pm', icon: 'fa-clock-rotate-left' },
+  'ooh-25': { name: 'Flexible Schedule', description: '25 commits outside 9am-5pm', icon: 'fa-user-clock' },
+  'ooh-50': { name: 'Off-Hours Hero', description: '50 commits outside 9am-5pm', icon: 'fa-hourglass-half' },
+  'ooh-100': { name: 'Time Bender', description: '100 commits outside 9am-5pm', icon: 'fa-infinity' },
+
+  // ===== DOCUMENTATION & COMMENTS ADDED (Tiers: 100, 500, 1000, 2500, 5000) =====
+  'docs-100': { name: 'Documenter', description: 'Added 100 lines of comments/docs', icon: 'fa-file-lines' },
+  'docs-500': { name: 'Technical Writer', description: 'Added 500 lines of comments/docs', icon: 'fa-book' },
+  'docs-1000': { name: 'Documentation Hero', description: 'Added 1000 lines of comments/docs', icon: 'fa-book-open' },
+  'docs-2500': { name: 'Knowledge Keeper', description: 'Added 2500 lines of comments/docs', icon: 'fa-scroll' },
+  'docs-5000': { name: 'Code Historian', description: 'Added 5000 lines of comments/docs', icon: 'fa-landmark' },
+
+  // ===== COMMENT CLEANUP (Tiers: 50, 200, 500, 1000, 2500) =====
+  'docs-del-50': { name: 'Comment Trimmer', description: 'Removed 50 lines of outdated comments', icon: 'fa-scissors' },
+  'docs-del-200': { name: 'Cleanup Crew', description: 'Removed 200 lines of outdated comments', icon: 'fa-broom' },
+  'docs-del-500': { name: 'Dead Code Hunter', description: 'Removed 500 lines of outdated comments', icon: 'fa-skull-crossbones' },
+  'docs-del-1000': { name: 'Comment Surgeon', description: 'Removed 1000 lines of outdated comments', icon: 'fa-user-doctor' },
+  'docs-del-2500': { name: 'Noise Eliminator', description: 'Removed 2500 lines of outdated comments', icon: 'fa-volume-xmark' },
 }
 
 const getAchievement = (id) => {

web/src/components/AchievementProgress.vue

@@ -226,10 +226,10 @@ const progressItems = computed(() => {
     })
   }
 
-  // Sort by progress (closest to completion first)
+  // Sort by progress descending (closest to next tier first - highest % complete)
   results.sort((a, b) => b.progress - a.progress)
 
-  return results.slice(0, props.maxDisplay)
+  return results
 })
 
 // Get count of remaining achievements (all unearned across all types)

web/src/composables/achievements.js

@@ -0,0 +1,137 @@
+// Achievement category mappings and utilities
+
+// Define achievement categories and their tier ordering (highest tier last)
+const achievementCategories = {
+  // Commits
+  'commit': ['commit-1', 'commit-10', 'commit-50', 'commit-100', 'commit-500', 'commit-1000'],
+  // PRs opened
+  'pr': ['pr-1', 'pr-10', 'pr-25', 'pr-50', 'pr-100', 'pr-250'],
+  // Reviews
+  'review': ['review-1', 'review-10', 'review-25', 'review-50', 'review-100', 'review-250'],
+  // Review comments
+  'comment': ['comment-10', 'comment-50', 'comment-100', 'comment-250', 'comment-500'],
+  // Lines added
+  'lines-added': ['lines-added-100', 'lines-added-1000', 'lines-added-5000', 'lines-added-10000', 'lines-added-50000'],
+  // Lines deleted
+  'lines-deleted': ['lines-deleted-100', 'lines-deleted-500', 'lines-deleted-1000', 'lines-deleted-5000', 'lines-deleted-10000'],
+  // Review time
+  'review-time': ['review-time-24h', 'review-time-4h', 'review-time-1h'],
+  // Multi-repo
+  'repo': ['repo-2', 'repo-5', 'repo-10'],
+  // Unique reviewees
+  'reviewees': ['reviewees-3', 'reviewees-10', 'reviewees-25'],
+  // Large PRs
+  'large-pr': ['large-pr-500', 'large-pr-1000', 'large-pr-5000'],
+  // Small PRs
+  'small-pr': ['small-pr-5', 'small-pr-10', 'small-pr-25', 'small-pr-50'],
+  // Perfect PRs
+  'perfect-pr': ['perfect-pr-1', 'perfect-pr-5', 'perfect-pr-10', 'perfect-pr-25'],
+  // Active days
+  'active': ['active-7', 'active-30', 'active-60', 'active-100'],
+  // Streaks
+  'streak': ['streak-3', 'streak-7', 'streak-14', 'streak-30'],
+  // Work week streaks
+  'workweek': ['workweek-3', 'workweek-5', 'workweek-10', 'workweek-20'],
+  // Early bird
+  'earlybird': ['earlybird-10', 'earlybird-25', 'earlybird-50', 'earlybird-100'],
+  // Night owl
+  'nightowl': ['nightowl-10', 'nightowl-25', 'nightowl-50', 'nightowl-100'],
+  // Midnight coder
+  'midnight': ['midnight-5', 'midnight-10', 'midnight-25', 'midnight-50'],
+  // Weekend warrior
+  'weekend': ['weekend-5', 'weekend-10', 'weekend-25', 'weekend-50'],
+  // Out of hours
+  'ooh': ['ooh-10', 'ooh-25', 'ooh-50', 'ooh-100'],
+  // Documentation added
+  'docs': ['docs-100', 'docs-500', 'docs-1000', 'docs-2500', 'docs-5000'],
+  // Documentation deleted
+  'docs-del': ['docs-del-50', 'docs-del-200', 'docs-del-500', 'docs-del-1000', 'docs-del-2500'],
+}
+
+// Get the category for an achievement ID
+export function getAchievementCategory(achievementId) {
+  for (const [category, tiers] of Object.entries(achievementCategories)) {
+    if (tiers.includes(achievementId)) {
+      return category
+    }
+  }
+  return null
+}
+
+// Get the tier index within a category (higher = better)
+export function getAchievementTier(achievementId) {
+  const category = getAchievementCategory(achievementId)
+  if (!category) return -1
+  return achievementCategories[category].indexOf(achievementId)
+}
+
+/**
+ * Filter achievements to show only the highest tier in each category
+ * @param {string[]} achievements - Array of achievement IDs
+ * @returns {string[]} - Filtered array with only highest tier per category
+ */
+export function getHighestTierAchievements(achievements) {
+  if (!achievements || !achievements.length) return []
+
+  // Group achievements by category, keeping only the highest tier
+  const highestByCategory = {}
+
+  for (const achievementId of achievements) {
+    const category = getAchievementCategory(achievementId)
+    if (!category) {
+      // Unknown achievement, keep it
+      highestByCategory[achievementId] = { id: achievementId, tier: -1 }
+      continue
+    }
+
+    const tier = getAchievementTier(achievementId)
+
+    if (!highestByCategory[category] || tier > highestByCategory[category].tier) {
+      highestByCategory[category] = { id: achievementId, tier }
+    }
+  }
+
+  // Return just the achievement IDs, sorted by tier (highest first)
+  return Object.values(highestByCategory)
+    .sort((a, b) => b.tier - a.tier)
+    .map(item => item.id)
+}
+
+/**
+ * Get a priority score for sorting achievements (higher = more impressive)
+ * Categories are weighted to show most impressive achievements first
+ */
+const categoryPriority = {
+  'commit': 10,
+  'pr': 9,
+  'review': 8,
+  'lines-added': 7,
+  'perfect-pr': 6,
+  'streak': 5,
+  'active': 4,
+  'review-time': 3,
+  'docs': 2,
+}
+
+export function getAchievementPriority(achievementId) {
+  const category = getAchievementCategory(achievementId)
+  const basePriority = categoryPriority[category] || 0
+  const tier = getAchievementTier(achievementId)
+  // Combine category priority with tier (tier adds 0.1 per level)
+  return basePriority + (tier * 0.1)
+}
+
+/**
+ * Get highest tier achievements, sorted by importance
+ * @param {string[]} achievements - Array of achievement IDs
+ * @param {number} limit - Maximum number to return
+ * @returns {string[]} - Filtered and sorted array
+ */
+export function getTopAchievements(achievements, limit = 6) {
+  const highest = getHighestTierAchievements(achievements)
+
+  // Sort by priority (most impressive first)
+  highest.sort((a, b) => getAchievementPriority(b) - getAchievementPriority(a))
+
+  return highest.slice(0, limit)
+}

web/src/views/Contributor.vue

@@ -11,6 +11,7 @@ import AchievementProgress from '../components/AchievementProgress.vue'
 import SectionHeader from '../components/SectionHeader.vue'
 import GithubLink from '../components/GithubLink.vue'
 import { formatNumber, formatPercent, formatDuration } from '../composables/formatters'
+import { getHighestTierAchievements } from '../composables/achievements'
 
 const route = useRoute()
 const globalData = inject('globalData')
@@ -127,7 +128,7 @@ watch(globalData, loadContributor)
 
               <div v-if="contributor.achievements?.length" class="mt-6 flex flex-wrap justify-center md:justify-start gap-3">
                 <AchievementBadge
-                  v-for="achievement in contributor.achievements"
+                  v-for="achievement in getHighestTierAchievements(contributor.achievements)"
                   :key="achievement"
                   :achievement-id="achievement"
                   size="lg"
@@ -194,6 +195,30 @@ watch(globalData, loadContributor)
                     -{{ formatNumber(contributor.lines_deleted || 0) }}
                   </span>
                 </div>
+                <div v-if="contributor.meaningful_lines_added !== undefined" class="flex items-center justify-between">
+                  <span class="text-gray-600 dark:text-gray-300">Meaningful Lines Added</span>
+                  <span class="text-emerald-500 font-semibold">
+                    +{{ formatNumber(contributor.meaningful_lines_added || 0) }}
+                  </span>
+                </div>
+                <div v-if="contributor.meaningful_lines_deleted !== undefined" class="flex items-center justify-between">
+                  <span class="text-gray-600 dark:text-gray-300">Meaningful Lines Deleted</span>
+                  <span class="text-rose-500 font-semibold">
+                    -{{ formatNumber(contributor.meaningful_lines_deleted || 0) }}
+                  </span>
+                </div>
+                <div v-if="contributor.comment_lines_added !== undefined" class="flex items-center justify-between">
+                  <span class="text-gray-600 dark:text-gray-300">Comment Lines Added</span>
+                  <span class="text-cyan-500 font-semibold">
+                    +{{ formatNumber(contributor.comment_lines_added || 0) }}
+                  </span>
+                </div>
+                <div v-if="contributor.comment_lines_deleted !== undefined" class="flex items-center justify-between">
+                  <span class="text-gray-600 dark:text-gray-300">Comment Lines Deleted</span>
+                  <span class="text-amber-500 font-semibold">
+                    -{{ formatNumber(contributor.comment_lines_deleted || 0) }}
+                  </span>
+                </div>
                 <div class="flex items-center justify-between">
                   <span class="text-gray-600 dark:text-gray-300">Files Changed</span>
                   <span class="text-gray-800 dark:text-white font-semibold">
@@ -260,36 +285,55 @@ watch(globalData, loadContributor)
               <i class="fas fa-chart-pie gradient-text mr-2"></i>Score Breakdown
             </h3>
 
-            <div class="grid grid-cols-2 md:grid-cols-5 gap-4">
+            <div class="grid grid-cols-2 md:grid-cols-4 lg:grid-cols-7 gap-4">
               <div class="text-center p-4 rounded-lg bg-gray-50 dark:bg-gray-800/50">
                 <div class="text-2xl font-bold text-green-500">
                   {{ formatNumber(contributor.score.breakdown.commits || 0) }}
                 </div>
                 <div class="text-xs text-gray-500 dark:text-gray-400 mt-1">Commits</div>
+                <div class="text-xs text-gray-400 dark:text-gray-500">{{ contributor.commit_count || 0 }} × 10 pts</div>
               </div>
               <div class="text-center p-4 rounded-lg bg-gray-50 dark:bg-gray-800/50">
                 <div class="text-2xl font-bold text-blue-500">
                   {{ formatNumber(contributor.score.breakdown.prs || 0) }}
                 </div>
                 <div class="text-xs text-gray-500 dark:text-gray-400 mt-1">PRs</div>
+                <div class="text-xs text-gray-400 dark:text-gray-500">{{ contributor.prs_opened || 0 }} opened + {{ contributor.prs_merged || 0 }} merged</div>
               </div>
               <div class="text-center p-4 rounded-lg bg-gray-50 dark:bg-gray-800/50">
                 <div class="text-2xl font-bold text-purple-500">
                   {{ formatNumber(contributor.score.breakdown.reviews || 0) }}
                 </div>
                 <div class="text-xs text-gray-500 dark:text-gray-400 mt-1">Reviews</div>
+                <div class="text-xs text-gray-400 dark:text-gray-500">{{ contributor.reviews_given || 0 }} × 30 pts</div>
+              </div>
+              <div class="text-center p-4 rounded-lg bg-gray-50 dark:bg-gray-800/50">
+                <div class="text-2xl font-bold text-pink-500">
+                  {{ formatNumber(contributor.score.breakdown.comments || 0) }}
+                </div>
+                <div class="text-xs text-gray-500 dark:text-gray-400 mt-1">Comments</div>
+                <div class="text-xs text-gray-400 dark:text-gray-500">{{ contributor.review_comments || 0 }} × 5 pts</div>
               </div>
               <div class="text-center p-4 rounded-lg bg-gray-50 dark:bg-gray-800/50">
                 <div class="text-2xl font-bold text-orange-500">
                   {{ formatNumber(contributor.score.breakdown.line_changes || 0) }}
                 </div>
                 <div class="text-xs text-gray-500 dark:text-gray-400 mt-1">Line Changes</div>
+                <div class="text-xs text-gray-400 dark:text-gray-500">meaningful lines × 0.1 pts</div>
               </div>
               <div class="text-center p-4 rounded-lg bg-gray-50 dark:bg-gray-800/50">
                 <div class="text-2xl font-bold text-yellow-500">
                   {{ formatNumber(contributor.score.breakdown.response_bonus || 0) }}
                 </div>
                 <div class="text-xs text-gray-500 dark:text-gray-400 mt-1">Response Bonus</div>
+                <div class="text-xs text-gray-400 dark:text-gray-500">fast review bonus</div>
+              </div>
+              <div class="text-center p-4 rounded-lg bg-gray-50 dark:bg-gray-800/50">
+                <div class="text-2xl font-bold text-indigo-500">
+                  {{ formatNumber(contributor.score.breakdown.out_of_hours || 0) }}
+                </div>
+                <div class="text-xs text-gray-500 dark:text-gray-400 mt-1">Out of Hours</div>
+                <div class="text-xs text-gray-400 dark:text-gray-500">{{ contributor.out_of_hours_count || 0 }} × 2 pts</div>
               </div>
             </div>
           </div>

web/src/views/Leaderboard.vue

@@ -6,6 +6,7 @@ import ContributorRow from '../components/ContributorRow.vue'
 import RankBadge from '../components/RankBadge.vue'
 import AchievementBadge from '../components/AchievementBadge.vue'
 import { formatNumber } from '../composables/formatters'
+import { getHighestTierAchievements } from '../composables/achievements'
 
 const globalData = inject('globalData')
 const leaderboard = computed(() => globalData.value?.leaderboard || [])
@@ -59,9 +60,9 @@ const categoryIcon = (category) => {
           </template>
 
           <template #achievements="{ item }">
-            <div class="flex flex-wrap gap-1.5 max-w-[180px]">
+            <div class="flex flex-wrap gap-1.5 max-w-[280px]">
               <AchievementBadge
-                v-for="achievement in (item.achievements || []).slice(0, 6)"
+                v-for="achievement in getHighestTierAchievements(item.achievements)"
                 :key="achievement"
                 :achievement-id="achievement"
                 size="sm"