The in-process scheduler is the sole cron trigger on self-host, so the
/cron/{name} HTTP endpoint and its CRON_SHARED_SECRET are dead surface.
Reduce the HTTP server to GET / (health) and remove the cron secret config,
SSM binding, and now-unused timeout.
The CF→AWS data migration (closed 2026-05-16) is long done and the
tooling isn't wired into any production path. Remove the one-shot binary,
its support package, and the migration runbook.
In live code, replace 'JS-parity' / 'same shape as JS' / 'cross-runtime
KV migration' comments with the real, stable reason for each behavior
(wire-format invariant, null-vs-zero distinction, CloudWatch alarm field
name, etc.). 24 files touched across lolschedule, loldle, wordle, twentyq,
trading, misc, util, server, metrics, ai, keylock.
- delete cmd/migrate_cf_data/
- delete internal/migration/
- delete docs/cf-to-aws-migration-runbook.md
Concurrency
- lolschedule: serialize subscriber Get→mutate→Put via state.subscribersMu;
the single-slot list was previously losing writes under concurrent
/lolschedule_subscribe.
- trading: PriceClient memoises its default *http.Client so /trade_stats
reuses TLS connections across held tickers.
Observability
- server/log_middleware: defer the req log line and recover panics so a
panicking cron handler still emits the structured req entry CloudWatch
filters on for 5xx alerting.
- server/router (cron): inner recover with cron-name context captures the
panicking job before the middleware's safety net does.
- telegram/webhook: rune-safe truncation in dispatch logs — Vietnamese,
Korean, and emoji previews no longer ship as garbled bytes.
- lolschedule/api_client: same rune-safe fix for error-body log truncation.
- telegram/webhook: gate the post-recover WriteHeader(200) so a panicking
handler that already touched w doesn't trigger superfluous-WriteHeader.
Correctness
- twentyq: clearGame error during solved-relaunch is logged instead of
silently swallowed (was a permanent deadlock vector on KV failure).
- misc /mstats: KV read failure replies "Could not load stats. Try again
later." to the user instead of returning into the dispatcher; matches the
pattern other modules use.
- migrate_cf_data trading-audit-dump: surface f.Close error so a truncated
JSONL never passes silently as a complete audit dump.
Operator ergonomics
- migrate_cf_data (all 4 subcommands): signal.NotifyContext for SIGINT /
SIGTERM. Ctrl-C mid-Scan now propagates cleanly instead of leaving a
half-converted DynamoDB table.
- ai/ratelimit: doc the Lambda-recycle memory bound to match keylock.Map
so a future reviewer doesn't re-flag the unbounded map.
I/O-changing (user-approved)
- lolschedule daily push auto-prunes subscribers whose Telegram error
matches a terminal marker (blocked / deactivated / chat gone). Transient
errors keep the chat on the list. Subscribe message updated to mention
the auto-cleanup.
- twentyq seed pool grown 50 → 178; repeat-collision threshold moves from
~9 plays to ~17 (birthday paradox).
- util /info flipped Public → Protected — chat/thread/sender IDs are no
longer enumerable by every group member.
- cmd/server WriteTimeout 6min → 75s (cron 60s + 15s slack). No-op on
Lambda; matters only for local non-Lambda runs.
- webhook + cron rejection paths drop response bodies (no fingerprintable
text for internet scanners hitting the public Function URL). Status
codes preserved for CloudWatch metrics; structured log lines carry the
rejection reason for operator triage.
Tests added: TestTruncateRunes, TestRunDailyPush_PrunesDeadSubscribers,
TestIsTerminalSendError, TestInfo_DeniedToNonOwner,
TestInfo_DeniedToChannelMessageNoFrom, plus owner-allowed counterparts.
Rename:
- Go module github.com/tiennm99/miti99bot-go → github.com/tiennm99/miti99bot
- CloudFormation stack miti99bot-aws-port → miti99bot
- Drop "port", "Cloud Run", "GCP", "cutover", "Phase NN" framing from
active code and docs — project reads as canonical AWS-Lambda from now on.
AWS deploy guide + flow fix:
- New docs/deploy-aws-free-tier-guide.md — Ubuntu 24.04 ARM64 onboarding
with project-local venv (pip awscli + sam-cli), SSM secrets via read -s,
idempotent OIDC provider + role creation, $1 budget alarm.
- Drop sam build from the pipeline — provided.al2023 + makefile builder
expects a Makefile in CodeUri (build/lambda/, the output dir), so the
step always fails. sam deploy --template-file template.yaml now reads
the raw template and zips build/lambda/ directly.
- Rollback section rewritten — use continue-update-rollback /
cancel-update-stack / git-SHA redeploy. Drop the broken
--use-previous-template recipe.
- DynamoDB free-tier row corrected (on-demand is 2.5M read / 1M write
request units, not 25 RCU/WCU).
Updated:
- README.md fully rewritten (drops port/legacy framing, lists modules,
points new users at the free-tier guide).
- aws/README.md retitled "AWS account setup", phase numbers stripped.
- Makefile / .github/workflows/deploy.yml — sam deploy flow.
- samconfig.toml — stack_name = "miti99bot".
- Go comments — Cloud Run → Lambda, Cloud Scheduler → EventBridge
Scheduler, Cloud Logging → CloudWatch Logs.
- Struct field GCPProject → FirestoreProject (env GOOGLE_CLOUD_PROJECT
unchanged).
Plus advisory reports under plans/reports/ from the code-reviewer +
researcher passes that informed the fixes.
Verified: go vet ./..., go build ./..., go test ./... all green.
Removes six modules (loldle-ability/emoji/quote/splash, semantle, doantu)
and prunes the framework deps that were only there to serve them:
- ai.Embedder + Client.Embed + embeddingModel const (semantle only)
- Deps.Embedder + BuildOptions.Embedder
- Deps.Env + Build(env) param + ModuleEnv config field + PHOW2SIM allowlist (doantu only)
- internal/champname package (loldle now owns its lookup helpers directly)
- template.yaml: Phow2simAPIURL parameter + PHOW2SIM_API_URL Lambda env
Active catalog: util, misc, wordle, loldle, lolschedule, twentyq, trading.
go build / vet / test all pass.
- Add new modules: doantu, semantle, twentyq, ai (Gemini integration)
- Update module registry with new command registration
- Update tests and documentation for module system
- Update README with new module references
Phase 11 partial of the go-port-cloud-run plan. Code-side
observability hooks ready ahead of Phase 01 GCP rollout.
- internal/server/log_middleware.go: HTTP middleware that wraps the
router and emits {msg:"req", method, path, status, ms} per
request. statusRecorder defaults to 200 when the inner handler
doesn't call WriteHeader (Go writes 200 implicitly on first body
write). Wired into server.New so /, /webhook, /cron/* all log.
- internal/metrics/counters.go: in-memory Registry with
IncCommand/IncError/IncAI. Atomic Int64 per name + RWMutex on the
map; steady-state increments are mutex-free. Periodic Run flushes
via the project logger every 60s and one final flush on ctx done.
Empty flush is silent (no-noise default).
- Dispatcher instrumented: every command invocation calls
metrics.IncCommand; every handler error calls
metrics.IncError("handler-error"). Logger keeps the full error
detail; counters keep the rate.
- cmd/server/main.go: go metrics.Run(rootCtx) so the flush loop
cancels with SIGTERM and emits the trailing window before exit.
Test coverage: 12 new tests (7 metrics, 3 middleware, 2 default-
registry round-trip). go test -race -count=1 ./... clean
(20 packages); golangci-lint clean.
Soak / cold-start measurement / log-based metrics setup deferred to
post-deployment (Phase 01 prerequisite).
Implements Phases 02 (partial) and 03 of the go-port-cloud-run plan.
Introduces module framework with per-module KV prefix isolation,
health check endpoint, request timeout protection, and comprehensive
test coverage. Cloud Run deployment deferred to Phase 01.
Security hardening: constant-time secret comparison, cron auth bridge,
and secrets stripped from dependency environment exports. Includes
Dockerfile, GitHub CI workflow (vet + race + build), and integration
tests for module lifecycle.
tiennm99