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feat(mcp): sleep-stage rule inspection, dry-run preview and apply against Apple Watch reference - #823
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Merge Risk: 🔵 Low · up to
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| Check name | Status | Explanation | Resolution |
|---|---|---|---|
| Docstring Coverage |  |
Docstring coverage is 40.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 10 functions across 6 files. (1 skipped: … | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request. Description Check Check skipped - CodeRabbit’s high-level summary is enabled. Title check The title clearly summarizes the main changes: MCP sleep-stage rule inspection, preview, and application against Apple Watch reference stages.
Full details: Docstring Coverage
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Explanation
Docstring coverage is 40.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 10 functions across 6 files. (1 skipped: 1 unsupported.)
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Actionable comments posted: 1
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @src/mcp/tools/sleep.ts:
- Around line 306-308: Update the coverage flow that calls getSleepRecords and
getReferenceStages so it does not report incomplete results as complete when
either query reaches its limit. Fetch complete results or detect and expose
truncation for both queries, then mark derived coverage—including nights,
segments, epochs, and latestReferenceAt—as incomplete when truncated; changing
query ordering alone is insufficient.
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ℹ️ Review info
⚙️ Run configuration
- Configuration used: defaults
- Review profile: CHILL
- Plan: Advanced
- Run ID:
ba8e3bb0-ae91-4b2c-ad1c-8651f4bedab8
📒 Files selected for processing (7)
src/lib/sleep-stages.tssrc/lib/tests/sleep-stages.test.tssrc/mcp/README.mdsrc/mcp/server.tssrc/mcp/tests/server.test.tssrc/mcp/tools/sleep.tssrc/server/routers/sleepStages.ts
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✅ Fixed in eaf2f0a — |
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Adversarial review (standard depth, Claude Sonnet + Codex sidecar, Skeptic-verified). Score 3: baseline +1, api +2.
Fixed on the branch (d9c8d9c, eaf2f0a):
- 🟡
overridescould only editrules, neverlowSignalRules→ addedlistselector. - 🟡 overrides were re-resolved at save time, so a concurrent edit could save something other than what was previewed → preview now returns
candidateRuleset; set points agents at it. - 🟡 change log dropped
before, making the advertised rollback impossible →beforeexposed on recent changes and the save result. - 🟢 coverage treated capped query results as complete (CodeRabbit) →
truncatedflag.
Remaining (inline below, author's call): unclipped coverage durations, post-save change attribution race, overclaiming zero-coverage hint, instruction wording, README count.
Pre-existing, not from this PR: classifyNights filters empty runs before taking latestEpochs, so "changed on the latest night" can describe an older night when the latest record has no vitals (real on pod .88: record 1074).
Mechanical: eslint, tsc, vitest all green. Recommendation: Approve once the Minors are triaged.
| const end = r.leftBedAt ?? endDate | ||
| return segments.some(seg => seg.start < end && seg.end > r.enteredBedAt) | ||
| } | ||
| const coveredMs = segments.reduce((sum, seg) => sum + (seg.end.getTime() - seg.start.getTime()), 0) |
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🟢 Coverage sums unclipped segment durations (Correctness)
getReferenceStages returns every segment that overlaps the 14-day window, unclipped. Summing end - start counts time outside the window; a 5-minute overlap from a segment that started a day earlier reproduced 289 epochs.
Suggested fix: Math.min(seg.end, endDate) - Math.max(seg.start, startDate) per segment. Leave latestReferenceAt as the real endpoint.
Review context
- Source: Optimizer (sonnet + codex sidecar, cross-vendor)
- Skeptic verdict: Agree (sonnet 70) / Agree with modifications (codex 50)
- Confidence: High
| } | ||
| const after = await caller.sleepStages.getClassifier({ side: s }) | ||
| const latest = after.changes[0] | ||
| const change = latest && latest.id !== lastChangeId |
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🟢 Post-save change attribution can describe another writer (Race Condition)
change is whichever entry is newest after the save. A save by another client between setClassifier and the follow-up getClassifier gets reported as ours.
Suggested fix: have setClassifier return the inserted entry (router change), or at minimum compare after.classifier with what was sent before trusting the entry.
Review context
- Source: Optimizer (codex sidecar)
- Skeptic verdict: Agree (sonnet 75) / Agree with modifications (codex 50)
- Confidence: Medium
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| const PRESET_IDS = Object.keys(STAGE_RULESET_PRESETS) as [keyof typeof STAGE_RULESET_PRESETS, ...(keyof typeof STAGE_RULESET_PRESETS)[]] | ||
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| const IMPORT_HINT = 'No reference stages for this side. Run import_apple_watch_data (or POST /api/biometrics/watch-upload) first; a side without reference coverage cannot be scored.' |
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🟢 Zero 14-day coverage does not mean the side cannot be scored (Correctness)
previewClassifier picks the latest N sleep records with no date cutoff, so a side whose Watch nights are older than 14 days still scores. The hint overclaims. Related: preview's own hint is null whenever reference exists, even when it covers no epoch midpoint and agreement is null.
Suggested fix: word as "no overlapping sleep records with reference stages in the last 14 days"; base preview's hint on actual agreement.
Review context
- Source: Optimizer (codex sidecar) + Skeptic missed issue (codex)
- Skeptic verdict: Agree (sonnet 80 / codex 50)
- Confidence: High
| Confirm with the user before prime_pod, pod_maintenance and manage_schedule delete. | ||
| Run preview_sleep_stage_rules before set_sleep_stage_rules and apply a ruleset only when it improves kappa against the reference stages. | ||
| A side with zero reference coverage (see get_sleep_stage_rules) cannot be scored; import Apple Watch stages with import_apple_watch_data first. | ||
| Every set_sleep_stage_rules call is recorded in the change log and can be reverted by setting the previous ruleset again.` |
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⚪ Wording: no-op saves are not logged; kappa rule conflicts with reset/rollback (Correctness)
The router inserts a change only when the summary is not "No change" (and the tests assert that). Line 28's "apply only when it improves kappa" also blocks a user-requested reset or rollback, which need not improve kappa.
Suggested fix: "Every classifier change is recorded…"; scope the kappa requirement to tuning and allow explicit reset/rollback.
Review context
- Source: Optimizer (codex sidecar)
- Skeptic verdict: Agree (both, 50)
- Confidence: Medium
| ## Design rules | ||
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| - **Intent-shaped, not endpoint-shaped.** 22 tools cover ~110 procedures. A tool is one thing a person would ask for. | ||
| - **Intent-shaped, not endpoint-shaped.** 25 tools cover ~110 procedures. A tool is one thing a person would ask for. |
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🟣 Tool count is 26, not 25 (pre-existing drift: base said 22 with 23 registered)
Suggested fix: 26, or drop the hand-maintained count.
Review context
- Source: Optimizer (codex sidecar); Skeptic confirmed by counting
registerToolcalls
…, keep the latest night latest
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All inline review items addressed in 4761947 and 6dc1a67: coverage clipped to the window, change attribution guarded, hint rewording, instruction wording, README count, and the pre-existing |
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Why
A dry run against pod .88 showed the MCP surface gives an agent no way to see whether a side has Apple Watch reference stages, how the pod's stages disagree with them, or what a different ruleset would score. The agent had to fall back to raw REST. Default rules score kappa ~0 against Apple on the left side and the right side has no reference at all, but nothing in MCP exposed either fact.
What
scoreAgainstReferencenow also returns a 4x4confusion[reference][predicted]epoch matrix and per-stagerecall.epochs/accuracy/kappaare unchanged. ThesleepStagesrouter's agreement output schema includes the two new fields so tRPC output parsing does not strip them.get_sleep_summaryaddsreferenceAgreement(source, epochs, accuracy, kappa, confusion, recall) when the night has reference stages, elsenullplus areferenceHintpointing atimport_apple_watch_data.get_sleep_stage_rules(read-only): saved classifier per side,isDefault, preset ids, last five change-log entries, and 14-day reference coverage (nights,segments,epochs,latestReferenceAt).preview_sleep_stage_rules(read-only, never saves):presetId|ruleset|overrides [{ruleIndex, conditionIndex, value}], 1-14 nights. Returns saved vs candidate agreement, mean stage minutes per night,kappaDelta, and epochs changed on the latest night.set_sleep_stage_rules(destructiveHint): same inputs plusreset: true. Returns the new change-log entry and classifier. A routerCONFLICTsurfaces as a retryable error.Settings UI untouched. The only PR #822 files changed are
src/lib/sleep-stages.ts, its test, and the one output-schema edit insrc/server/routers/sleepStages.ts.Review follow-ups (adversarial review + CodeRabbit)
overridestake an optionallist: "rules" | "lowSignalRules"so low-signal nights can be tuned.preview_sleep_stage_rulesreturnscandidateRuleset;set_sleep_stage_rulessteers agents to pass it asruleset, since overrides are re-resolved at save time.before(null meansreset: true) and label the scalar agreement asaccuracyBefore/accuracyAfter.truncatedwhen a query hits its row cap, and the zero-coverage hint no longer claims the side cannot be scored at all.classifyNightskeeps an empty latest night as the latest night instead of promoting an older one (pre-existing bug, hit on pod .88).hrvFirstpreset andheartRateAgreement(pod-vs-watch HR correlation and MAE) in coverage. On pod .88 the pod HR correlates 0.33 with the watch, every HR-ratio ruleset scores kappa ~0.02, andhrvFirstreaches 0.09; the coverage hint now says so instead of letting an agent tune thresholds blindly.Test plan
./node_modules/.bin/tsc --noEmitcleaneslinton the six changed TS files cleanvitest run src/mcp/tests src/lib/tests src/server/routers/tests/sleepStages.test.ts src/components/Settings/tests src/demo/tests/sleepStages.test.tsgreen (1050 tests); tool file at 100% coveragevitest run src/components/Settings/tests src/demo/tests/sleepStages.test.ts src/server/routers/tests/app.test.tsgreen (agreement-type consumers)get_sleep_stage_rulesreports non-zero coverage for the imported side and zero for the other;preview_sleep_stage_ruleswithpresetId: "movementOnly"returns both agreements and a confusion matrix;set_sleep_stage_ruleswith the same args adds a change-log entry visible in Settings🤖 Generated with Claude Code
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