Billing:
- Passthrough SSE streams now bill the usage the upstream reports.
The gateway falls back to a request-size estimate only on a 2xx
stream or a truncated JSON body.
- A unified stream that fails after it starts is estimated, not
billed at zero.
- Billing uses the built-in LiteLLM price table and honours
modelMeta free: true.
- Pricing entries are validated. Cost arithmetic rounds the total and
saturates on overflow.
- Gemini thinking tokens count as completion tokens.
Limits and storage:
- A rejected request rolls back its counts on the other scopes, so one
user cannot lock out a group.
- Redis EXPIRE replies are checked. Keys recreated without a TTL are
repaired at once.
- A mutating pipeline is not retried after reply bytes arrive.
- History, model totals and target usage report a store outage.
Routing and translation:
- Discovered ids with a provider-like prefix are listed only in
owner/id form, so listing and routing agree.
- Anthropic and Gemini discovery follows pagination.
- The developer role maps to system.
- stream_options.include_usage is honoured on translated streams.
- tool_choice none keeps tools when history holds tool blocks.
- refusal maps to content_filter. Data URI parameters are stripped.
Streaming, retry and failover:
- SSE accepts CR, LF and CRLF line ends. This closes a CR injection
path.
- Retry-After is never jittered. A cancelled wait returns the
context error.
- The watchdog timer stops at end of body.
- Oversized bodies return 413.
- A failed stream ends with an error event.
- Failover restores pre-existing headers. Client cancels do not count
as provider successes.
Also: "admin" is a reserved provider name. metrics.path must start
with "/". Pricing warnings go to the right gateway instance. The admin
targets view sends access as null or [] so the two states differ.
Upstream organisation headers are stripped. The users-file reload
error is logged once per error. Dead code is removed, and test-only
helpers move to test files.
Claude-Session: https://claude.ai/code/session_01V5jYJNxpDFdJkyyExpADrv
- providers.go: validate provider names against ^[a-zA-Z0-9._-]+$ and
reject reserved names (v1, mcp, a2a) that would shadow gateway routes;
reject nil ProviderConfig map values at construction instead of
panicking.
- mcp_a2a.go: apply the same name-pattern and reserved-name validation to
mcpServers/agents keys, and reject nil TargetConfig/AgentConfig map
values at construction.
- auth.go: reject nil GroupConfig map values at construction.
- provider_openai_test.go, mcp_a2a_test.go, auth_test.go: table-driven
constructor-error coverage for the above.
- integration/integration_test.go: point the package doc at
`make integration-up`/`integration-keep` instead of a bare
`docker compose up -d --build`, which skips the dynamic.yml.tmpl
render step and can run against a stale or absent dynamic.yml; add
max_tokens to the gemini chat request so translate_gemini.go's
hasMaxTokens=true branch is actually exercised under real Yaegi.
- translate_gemini.go: soften the max_tokens comment's verification claim
to match what the integration suite actually now exercises.
Addresses coordinator review of the Task 15 integration suite: 1 critical
ruling, 5 important, 3 folded. make integration now exits 0.
- integration_test.go: TestStreamingIncrementalityProbe restructured —
content assertion (5 deltas + [DONE], in order) always runs; the raw-TCP
timing assertion (unchanged, >=3 gaps >=100ms) is gated behind
INTEGRATION_STREAMING=1 with t.Skipf naming traefik/traefik#10269,
verified to still genuinely fail when re-armed (not silently disabled).
- Makefile: integration-up/integration-wait moved from prerequisites into
the integration recipe body as go test ./... -count=1
ok github.com/lukaszraczylo/traefik-llmgateway 6.065s sub-invocations with per-stage
status capture, so integration-down always runs even when bring-up or
the health wait fails; verified with a synthetic failure. Added
.NOTPARALLEL (the integration targets are stateful).
- translate_gemini.go: fixed the same yaegi multi-value-assignment panic
shape as the prior sse.go fix, on the live max_tokens path. Added a
gemini chat completion assertion to integration_test.go (renamed
TestUnifiedChatAllProviders) so this path now runs under real Yaegi.
- providers.go, translate_anthropic.go: documented the never-wrap
contract on providerHTTPError/translateError (routes_unified.go asserts
their concrete type directly; errors.As panics under yaegi on these).
- integration_test.go: TestCrossReplicaLimits now FLUSHALLs Redis first,
for idempotence under integration-keep.
- mock/main.go: probe's header-terminator search now accumulates a
rolling buffer across reads instead of only checking the latest one.
- Folded: hot-reload deadline 10s -> 20s; dynamic.yml's real-upstream
baseUrl is now a template (dynamic.yml.tmpl) rendered via
INTEGRATION_REAL_BASEURL (default https://llmgw.example.com), not a
hardcoded-only hostname.
See task-15-report.md's addendum for full verification detail.
lukaszraczylo