Release dec 2025 (#15)

* Resolves issue #13

- Switched model to bge-small-en-v1.5
- Added lazy re-embedding
- Added model version tracking per vector
- Added conversion of vectors to the new model

* Add lfs support to the workflow.

* Implements importance scoring with decay + voting #6

* Resolves issue #5 by marking observations as superseeded and scheduled for deletion

* Implement pattern detection #7

* Improve injections and observations accuracy

- Session start: Recent observations for project context (recency-based)
- User prompt: Semantically relevant observations (similarity-based with threshold)

* Added two stage retrieval with bi and cross encoder #8

* Implement query expansion and reformulation #9

* Knowledge graph and relationships ( resolves #4 )

- File Overlap Detection: Detects relationships when observations modify/read the same files
- Concept Overlap Detection: Detects relationships based on shared semantic concepts
- Type Progression Detection: Infers relationships from natural observation type progressions (e.g., discovery → bugfix = "fixes")
- Temporal Proximity Detection: Detects relationships between observations in the same session within 5 minutes
- Narrative Mention Detection: Detects explicit relationship language in narratives (e.g., "fixes", "depends on", "supersedes")

* Add visualisation of the relations to the dashboard.

* fixup! Add visualisation of the relations to the dashboard.

* Update documentation with new settings and screenshots.
This commit is contained in:
2025-12-19 17:57:11 +00:00
committed by GitHub
parent 48957a6c81
commit f79782a008
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// Package scoring provides importance score calculation for observations.
package scoring
import (
"testing"
"time"
"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/stretchr/testify/suite"
)
// CalculatorSuite is a test suite for the Calculator.
type CalculatorSuite struct {
suite.Suite
calc *Calculator
config *models.ScoringConfig
now time.Time
}
func (s *CalculatorSuite) SetupTest() {
s.config = models.DefaultScoringConfig()
s.calc = NewCalculator(s.config)
s.now = time.Date(2025, 1, 15, 12, 0, 0, 0, time.UTC)
}
func TestCalculatorSuite(t *testing.T) {
suite.Run(t, new(CalculatorSuite))
}
// =============================================================================
// GOOD SCENARIOS - Expected normal operations
// =============================================================================
func (s *CalculatorSuite) TestCalculate_GoodScenarios_NewObservation() {
// A brand new observation should have score close to type weight
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeBugfix,
CreatedAtEpoch: s.now.UnixMilli(),
}
score := s.calc.Calculate(obs, s.now)
// Expected: 1.0 × 1.3 (bugfix weight) × 1.0 (no decay) = 1.3
s.InDelta(1.3, score, 0.01, "new bugfix should score ~1.3")
}
func (s *CalculatorSuite) TestCalculate_GoodScenarios_OneWeekOld() {
// One week old observation should have half the recency score
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeDiscovery,
CreatedAtEpoch: s.now.Add(-7 * 24 * time.Hour).UnixMilli(),
}
score := s.calc.Calculate(obs, s.now)
// Expected: 1.0 × 1.1 (discovery) × 0.5 (7 days half-life) = 0.55
s.InDelta(0.55, score, 0.05, "7-day old discovery should score ~0.55")
}
func (s *CalculatorSuite) TestCalculate_GoodScenarios_TwoWeeksOld() {
// Two weeks old should have 1/4 recency score
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeFeature,
CreatedAtEpoch: s.now.Add(-14 * 24 * time.Hour).UnixMilli(),
}
score := s.calc.Calculate(obs, s.now)
// Expected: 1.0 × 1.2 (feature) × 0.25 (14 days = 2 half-lives) = 0.30
s.InDelta(0.30, score, 0.05, "14-day old feature should score ~0.30")
}
func (s *CalculatorSuite) TestCalculate_GoodScenarios_PositiveFeedback() {
// Positive feedback should boost score
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeChange,
CreatedAtEpoch: s.now.UnixMilli(),
UserFeedback: 1, // thumbs up
}
score := s.calc.Calculate(obs, s.now)
// Expected: (1.0 × 0.9) + 0.30 (feedback) = 1.20
s.InDelta(1.20, score, 0.01, "thumbs up should boost score by 0.30")
}
func (s *CalculatorSuite) TestCalculate_GoodScenarios_NegativeFeedback() {
// Negative feedback should reduce score
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeChange,
CreatedAtEpoch: s.now.UnixMilli(),
UserFeedback: -1, // thumbs down
}
score := s.calc.Calculate(obs, s.now)
// Expected: (1.0 × 0.9) - 0.30 (feedback) = 0.60
s.InDelta(0.60, score, 0.01, "thumbs down should reduce score by 0.30")
}
func (s *CalculatorSuite) TestCalculate_GoodScenarios_WithConcepts() {
// Observation with valuable concepts should get boost
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeBugfix,
CreatedAtEpoch: s.now.UnixMilli(),
Concepts: []string{"security", "gotcha"},
}
score := s.calc.Calculate(obs, s.now)
// Concept boost: (0.30 + 0.25) × 0.20 = 0.11
// Expected: 1.3 + 0.11 = 1.41
s.InDelta(1.41, score, 0.05, "security+gotcha concepts should boost score")
}
func (s *CalculatorSuite) TestCalculate_GoodScenarios_WithRetrievals() {
// Popular observations should get retrieval boost
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeDiscovery,
CreatedAtEpoch: s.now.UnixMilli(),
RetrievalCount: 7, // log2(8) = 3
}
score := s.calc.Calculate(obs, s.now)
// Retrieval boost: log2(7+1) × 0.1 × 0.15 = 3 × 0.1 × 0.15 = 0.045
// Expected: 1.1 + 0.045 ≈ 1.145
s.InDelta(1.145, score, 0.05, "7 retrievals should add small boost")
}
func (s *CalculatorSuite) TestCalculate_GoodScenarios_CombinedFactors() {
// Test with all factors combined
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeBugfix,
CreatedAtEpoch: s.now.Add(-7 * 24 * time.Hour).UnixMilli(), // 7 days old
UserFeedback: 1,
Concepts: []string{"security"},
RetrievalCount: 3,
}
score := s.calc.Calculate(obs, s.now)
// Core: 1.0 × 1.3 × 0.5 = 0.65
// Feedback: 0.30
// Concept: 0.30 × 0.20 = 0.06
// Retrieval: log2(4) × 0.1 × 0.15 = 2 × 0.1 × 0.15 = 0.03
// Total ≈ 1.04
s.InDelta(1.04, score, 0.1, "combined factors should result in ~1.04")
}
// =============================================================================
// WORSE SCENARIOS - Degraded but acceptable operations
// =============================================================================
func (s *CalculatorSuite) TestCalculate_WorseScenarios_VeryOldObservation() {
// Very old observation should have low but non-zero score
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeChange,
CreatedAtEpoch: s.now.Add(-90 * 24 * time.Hour).UnixMilli(), // 90 days old
}
score := s.calc.Calculate(obs, s.now)
// 90 days = ~12.86 half-lives → decay ≈ 0.00014
// Core: 1.0 × 0.9 × 0.00014 = 0.000126
// But minimum score is 0.01
s.GreaterOrEqual(score, 0.01, "very old observation should still meet minimum")
s.Less(score, 0.1, "very old observation should be low scoring")
}
func (s *CalculatorSuite) TestCalculate_WorseScenarios_NegativeFeedbackOld() {
// Old observation with negative feedback should still have minimum score
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeChange,
CreatedAtEpoch: s.now.Add(-60 * 24 * time.Hour).UnixMilli(),
UserFeedback: -1,
}
score := s.calc.Calculate(obs, s.now)
s.GreaterOrEqual(score, s.config.MinScore, "should never go below minimum score")
}
func (s *CalculatorSuite) TestCalculate_WorseScenarios_UnknownConcepts() {
// Unknown concepts should not affect score negatively
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeDiscovery,
CreatedAtEpoch: s.now.UnixMilli(),
Concepts: []string{"unknown-concept", "another-unknown"},
}
score := s.calc.Calculate(obs, s.now)
// Should just be the base score without concept boost
s.InDelta(1.1, score, 0.01, "unknown concepts should not affect score")
}
func (s *CalculatorSuite) TestCalculate_WorseScenarios_MixedConcepts() {
// Mix of known and unknown concepts
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeDiscovery,
CreatedAtEpoch: s.now.UnixMilli(),
Concepts: []string{"security", "unknown-concept"},
}
score := s.calc.Calculate(obs, s.now)
// Only security should contribute
// Expected: 1.1 + (0.30 × 0.20) = 1.16
s.InDelta(1.16, score, 0.05, "only known concepts should boost score")
}
// =============================================================================
// BAD SCENARIOS - Edge cases and error conditions
// =============================================================================
func (s *CalculatorSuite) TestCalculate_BadScenarios_FutureTimestamp() {
// Observation created in the future (clock skew)
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeBugfix,
CreatedAtEpoch: s.now.Add(24 * time.Hour).UnixMilli(), // 1 day in future
}
score := s.calc.Calculate(obs, s.now)
// Should handle gracefully - age should be 0
s.InDelta(1.3, score, 0.01, "future timestamp should be treated as now")
}
func (s *CalculatorSuite) TestCalculate_BadScenarios_ZeroEpoch() {
// Missing creation timestamp
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeDiscovery,
CreatedAtEpoch: 0, // Missing timestamp
}
score := s.calc.Calculate(obs, s.now)
// This will be treated as very old (1970)
s.GreaterOrEqual(score, s.config.MinScore, "should still meet minimum")
}
func (s *CalculatorSuite) TestCalculate_BadScenarios_EmptyObservation() {
// Minimal observation with defaults
obs := &models.Observation{
ID: 1,
Type: "", // Empty type
CreatedAtEpoch: s.now.UnixMilli(),
}
score := s.calc.Calculate(obs, s.now)
// Unknown type should default to 1.0 weight
s.InDelta(1.0, score, 0.01, "empty type should use default weight 1.0")
}
func (s *CalculatorSuite) TestCalculate_BadScenarios_ExtremeRetrievalCount() {
// Very high retrieval count
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeDiscovery,
CreatedAtEpoch: s.now.UnixMilli(),
RetrievalCount: 1000000, // Extreme value
}
score := s.calc.Calculate(obs, s.now)
// log2(1000001) ≈ 19.93, so boost = 19.93 × 0.1 × 0.15 ≈ 0.30
// Score should be reasonable, not exploding
s.Less(score, 2.0, "extreme retrieval count should not explode score")
}
func (s *CalculatorSuite) TestCalculate_BadScenarios_NegativeRetrievalCount() {
// Negative retrieval count (should not happen but test defensively)
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeDiscovery,
CreatedAtEpoch: s.now.UnixMilli(),
RetrievalCount: -5,
}
score := s.calc.Calculate(obs, s.now)
// Should not panic and should give base score
s.InDelta(1.1, score, 0.01, "negative retrieval should be ignored")
}
// =============================================================================
// EDGE CASES - Boundary conditions
// =============================================================================
func (s *CalculatorSuite) TestCalculate_EdgeCases_ExactlyOneHalfLife() {
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeChange, // 0.9 weight
CreatedAtEpoch: s.now.Add(-7 * 24 * time.Hour).UnixMilli(),
}
score := s.calc.Calculate(obs, s.now)
s.InDelta(0.45, score, 0.01, "exactly 7 days should give 0.5 decay")
}
func (s *CalculatorSuite) TestCalculate_EdgeCases_ExactlyTwoHalfLives() {
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeChange,
CreatedAtEpoch: s.now.Add(-14 * 24 * time.Hour).UnixMilli(),
}
score := s.calc.Calculate(obs, s.now)
s.InDelta(0.225, score, 0.01, "exactly 14 days should give 0.25 decay")
}
func (s *CalculatorSuite) TestCalculate_EdgeCases_AllTypeWeights() {
types := []struct {
t models.ObservationType
weight float64
}{
{models.ObsTypeBugfix, 1.3},
{models.ObsTypeFeature, 1.2},
{models.ObsTypeDiscovery, 1.1},
{models.ObsTypeDecision, 1.1},
{models.ObsTypeRefactor, 1.0},
{models.ObsTypeChange, 0.9},
}
for _, tt := range types {
s.Run(string(tt.t), func() {
obs := &models.Observation{
ID: 1,
Type: tt.t,
CreatedAtEpoch: s.now.UnixMilli(),
}
score := s.calc.Calculate(obs, s.now)
s.InDelta(tt.weight, score, 0.01)
})
}
}
func (s *CalculatorSuite) TestCalculate_EdgeCases_MinimumScoreEnforced() {
// Create worst case scenario
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeChange, // Lowest weight 0.9
CreatedAtEpoch: time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC).UnixMilli(), // Very old
UserFeedback: -1, // Negative feedback
}
score := s.calc.Calculate(obs, s.now)
s.Equal(s.config.MinScore, score, "should be exactly minimum score")
}
func (s *CalculatorSuite) TestCalculate_EdgeCases_AllConceptsMaxWeight() {
// Observation with all high-value concepts
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeBugfix,
CreatedAtEpoch: s.now.UnixMilli(),
Concepts: []string{"security", "gotcha", "best-practice", "anti-pattern"},
}
score := s.calc.Calculate(obs, s.now)
// security=0.30, gotcha=0.25, best-practice=0.20, anti-pattern=0.20 = 0.95
// Concept contrib: 0.95 × 0.20 = 0.19
// Total: 1.3 + 0.19 = 1.49
s.InDelta(1.49, score, 0.05, "all high-value concepts should boost significantly")
}
// =============================================================================
// CALCULATE COMPONENTS TESTS
// =============================================================================
func (s *CalculatorSuite) TestCalculateComponents_ReturnsAllComponents() {
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeBugfix,
CreatedAtEpoch: s.now.Add(-7 * 24 * time.Hour).UnixMilli(),
UserFeedback: 1,
Concepts: []string{"security"},
RetrievalCount: 7,
}
components := s.calc.CalculateComponents(obs, s.now)
s.InDelta(1.3, components.TypeWeight, 0.01)
s.InDelta(0.5, components.RecencyDecay, 0.01)
s.InDelta(0.65, components.CoreScore, 0.05)
s.InDelta(0.30, components.FeedbackContrib, 0.01)
s.InDelta(0.06, components.ConceptContrib, 0.02)
s.Greater(components.RetrievalContrib, 0.0)
s.InDelta(7.0, components.AgeDays, 0.1)
s.Greater(components.FinalScore, 0.0)
}
func (s *CalculatorSuite) TestCalculateComponents_MatchesCalculate() {
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeFeature,
CreatedAtEpoch: s.now.Add(-3 * 24 * time.Hour).UnixMilli(),
UserFeedback: -1,
Concepts: []string{"performance", "architecture"},
RetrievalCount: 15,
}
score := s.calc.Calculate(obs, s.now)
components := s.calc.CalculateComponents(obs, s.now)
s.InDelta(score, components.FinalScore, 0.001, "Calculate and CalculateComponents should match")
}
// =============================================================================
// BATCH CALCULATE TESTS
// =============================================================================
func (s *CalculatorSuite) TestBatchCalculate_Empty() {
scores := s.calc.BatchCalculate(nil, s.now)
s.Empty(scores)
scores = s.calc.BatchCalculate([]*models.Observation{}, s.now)
s.Empty(scores)
}
func (s *CalculatorSuite) TestBatchCalculate_Multiple() {
obs := []*models.Observation{
{ID: 1, Type: models.ObsTypeBugfix, CreatedAtEpoch: s.now.UnixMilli()},
{ID: 2, Type: models.ObsTypeFeature, CreatedAtEpoch: s.now.Add(-7 * 24 * time.Hour).UnixMilli()},
{ID: 3, Type: models.ObsTypeChange, CreatedAtEpoch: s.now.Add(-14 * 24 * time.Hour).UnixMilli()},
}
scores := s.calc.BatchCalculate(obs, s.now)
s.Len(scores, 3)
s.Contains(scores, int64(1))
s.Contains(scores, int64(2))
s.Contains(scores, int64(3))
s.InDelta(1.3, scores[1], 0.01) // New bugfix
s.InDelta(0.6, scores[2], 0.1) // 7-day feature
s.InDelta(0.225, scores[3], 0.05) // 14-day change
}
// =============================================================================
// CONFIGURATION TESTS
// =============================================================================
func (s *CalculatorSuite) TestNewCalculator_NilConfig() {
calc := NewCalculator(nil)
s.NotNil(calc)
s.NotNil(calc.config)
s.Equal(7.0, calc.config.RecencyHalfLifeDays)
}
func (s *CalculatorSuite) TestUpdateConfig() {
newConfig := &models.ScoringConfig{
RecencyHalfLifeDays: 14.0, // Changed from 7
FeedbackWeight: 0.50,
ConceptWeight: 0.10,
RetrievalWeight: 0.05,
MinScore: 0.001,
ConceptWeights: map[string]float64{"test": 0.5},
}
s.calc.UpdateConfig(newConfig)
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeChange,
CreatedAtEpoch: s.now.Add(-14 * 24 * time.Hour).UnixMilli(),
}
score := s.calc.Calculate(obs, s.now)
// With 14-day half-life, 14 days = exactly one half-life
// Expected: 1.0 × 0.9 × 0.5 = 0.45
s.InDelta(0.45, score, 0.01)
}
func (s *CalculatorSuite) TestUpdateConfig_NilIgnored() {
originalConfig := s.calc.GetConfig()
s.calc.UpdateConfig(nil)
s.Equal(originalConfig, s.calc.GetConfig())
}
func (s *CalculatorSuite) TestGetConfig() {
config := s.calc.GetConfig()
s.NotNil(config)
s.Equal(7.0, config.RecencyHalfLifeDays)
}
func (s *CalculatorSuite) TestRecalculateThreshold() {
threshold := s.calc.RecalculateThreshold()
s.Equal(6*time.Hour, threshold)
}
// =============================================================================
// STANDALONE TESTS (non-suite)
// =============================================================================
func TestNewCalculator_DefaultConfig(t *testing.T) {
calc := NewCalculator(nil)
require.NotNil(t, calc)
assert.Equal(t, 7.0, calc.config.RecencyHalfLifeDays)
assert.Equal(t, 0.30, calc.config.FeedbackWeight)
assert.Equal(t, 0.01, calc.config.MinScore)
}
func TestCalculator_ConcurrentAccess(t *testing.T) {
calc := NewCalculator(nil)
now := time.Now()
// Test that calculator is safe for concurrent reads
done := make(chan bool, 10)
for i := 0; i < 10; i++ {
go func(id int64) {
obs := &models.Observation{
ID: id,
Type: models.ObsTypeBugfix,
CreatedAtEpoch: now.UnixMilli(),
}
score := calc.Calculate(obs, now)
assert.Greater(t, score, 0.0)
done <- true
}(int64(i))
}
for i := 0; i < 10; i++ {
<-done
}
}
func TestCalculator_DecayPrecision(t *testing.T) {
calc := NewCalculator(nil)
now := time.Now()
// Test that decay is mathematically correct
testCases := []struct {
days int
expectedDecay float64
}{
{0, 1.0},
{7, 0.5},
{14, 0.25},
{21, 0.125},
{28, 0.0625},
}
for _, tc := range testCases {
t.Run(string(rune('0'+tc.days/7))+"_half_lives", func(t *testing.T) {
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeRefactor, // 1.0 weight
CreatedAtEpoch: now.Add(-time.Duration(tc.days) * 24 * time.Hour).UnixMilli(),
}
components := calc.CalculateComponents(obs, now)
assert.InDelta(t, tc.expectedDecay, components.RecencyDecay, 0.001)
})
}
}
func TestTypeBaseScore_UnknownType(t *testing.T) {
score := models.TypeBaseScore("unknown-type")
assert.Equal(t, 1.0, score, "unknown type should default to 1.0")
}
func TestTypeBaseScore_AllKnownTypes(t *testing.T) {
expected := map[models.ObservationType]float64{
models.ObsTypeBugfix: 1.3,
models.ObsTypeFeature: 1.2,
models.ObsTypeDiscovery: 1.1,
models.ObsTypeDecision: 1.1,
models.ObsTypeRefactor: 1.0,
models.ObsTypeChange: 0.9,
}
for obsType, expectedScore := range expected {
t.Run(string(obsType), func(t *testing.T) {
score := models.TypeBaseScore(obsType)
assert.Equal(t, expectedScore, score)
})
}
}
func TestCalculator_RetrievalBoostDiminishingReturns(t *testing.T) {
calc := NewCalculator(nil)
now := time.Now()
// Test that retrieval boost has diminishing returns
// When retrieval count doubles, the boost should NOT double (log2 gives diminishing returns)
// Collect boosts for different counts
boosts := make([]float64, 0)
retrievalCounts := []int{1, 3, 7, 15, 31, 63, 127}
for _, count := range retrievalCounts {
obs := &models.Observation{
ID: 1,
Type: models.ObsTypeRefactor,
CreatedAtEpoch: now.UnixMilli(),
RetrievalCount: count,
}
components := calc.CalculateComponents(obs, now)
boosts = append(boosts, components.RetrievalContrib)
}
// Verify boost increases but at a decreasing rate
for i := 1; i < len(boosts); i++ {
// Each boost should be higher than the previous
assert.Greater(t, boosts[i], boosts[i-1],
"boost should increase with more retrievals")
// But not proportionally - calculate the ratios
if i >= 2 {
ratio1 := boosts[i-1] / boosts[i-2]
ratio2 := boosts[i] / boosts[i-1]
// The growth ratio should be decreasing (diminishing returns)
assert.Less(t, ratio2, ratio1+0.01, // Allow small floating point tolerance
"growth rate should decrease (diminishing returns)")
}
}
}