feat(observability): takt 内部 step/phase 別 timing の抽出ツールと実測スナップショット - #295
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📝 WalkthroughWalkthroughtaktのrunログからstep/phase別の所要時間を抽出・集計するPowerShellスクリプトを追加し、refuteおよびbaselineの観測結果と再現手順をドキュメント化します。 Changestakt実行時間の観測・集計
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Actionable comments posted: 1
🧹 Nitpick comments (1)
scripts/analyze-takt-timings.ps1 (1)
65-65: 🎯 Functional Correctness | 🔵 Trivial | ⚡ Quick winタイムゾーンの暗黙的な変換を避けるため
ConvertTo-Utcを使用する
[datetime]型への直接のキャストは、ローカルタイムゾーンへの暗黙的な変換を伴います。そのため、DST（夏時間）の切り替わり等の境界を跨いだ際にTotalSecondsの計算がずれるリスクがあります。
すでに定義されているConvertTo-Utcを利用して、安全に UTC として差分を計算することを推奨します。🛠 修正案
- $secs = [math]::Round(([datetime]$o.timestamp - [datetime]$starts[$id]).TotalSeconds, 1) + $secs = [math]::Round(((ConvertTo-Utc $o.timestamp) - (ConvertTo-Utc $starts[$id])).TotalSeconds, 1)🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@scripts/analyze-takt-timings.ps1` at line 65, Update the elapsed-seconds calculation for $secs to pass both $o.timestamp and $starts[$id] through the existing ConvertTo-Utc helper before subtracting them. Preserve the current rounding precision and TotalSeconds-based calculation while eliminating direct [datetime] casts.
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@scripts/analyze-takt-timings.ps1`:
- Line 49: Handle a missing $meta.startTime before calling ConvertTo-Utc in the
timing analysis flow. When startTime is null or absent, safely skip the current
record instead of invoking ConvertTo-Utc or terminating the script; preserve the
existing processing for records with a valid startTime.
---
Nitpick comments:
In `@scripts/analyze-takt-timings.ps1`:
- Line 65: Update the elapsed-seconds calculation for $secs to pass both
$o.timestamp and $starts[$id] through the existing ConvertTo-Utc helper before
subtracting them. Preserve the current rounding precision and TotalSeconds-based
calculation while eliminating direct [datetime] casts.
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docs/takt-step-timings.mdscripts/analyze-takt-timings.ps1
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push パイプラインの takt 部分 (AI レビュー) の内部 step/phase 粒度の所要時間を run ログ (logs/*.jsonl の phase_start↔phase_complete) から決定論的に抽出する再現スクリプト scripts/analyze-takt-timings.ps1 と、2026-07-18 時点の実測 docs/takt-step-timings.md を追加。R3 の push-runs JSONL が決定論 stage を担うのに対し takt 内部の可観測性を補完する。 主な所見: simplicity-review execute が支配項 (refute avg 203s / baseline 164s)、report/judge phase は軽量 (各 6-16s)、verify (refute 追加 step) は 24 run 中 2 run のみ発火、fix execute は発火時高価 (baseline 15 run avg 312s)。ADR-047/056 の R4 判定と R5/R6 after 計測の材料。 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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…llow-up todo (#295/#296 post-merge feedback) PR #295/#296 の post-merge feedback 採用候補を反映。(1) analyze-takt-timings.ps1 L47 の ConvertFrom-Json を try/catch で保護し、crashed/in-progress run の truncated meta.json 1 件で集計ループ全体が中断しないよう skip (L63 の phase 行 parse と同流儀。CodeRabbit の startTime null ガードが塞げなかった JSON 自体の破損を補完)。(2) takt-step-timings.md の「正規化前提」と述べつつ未正規化 avg を 150s と直接『未達』断定していた矛盾を、diff サイズ交絡を明記し最終判定を R4/ADR-056 に委ねる記述に修正。 あわせて todo 起案: 順位327 (多段コミットの ADR/observability 更新チェックリストを dev-conventions に、Tier3)、順位328 (post-merge feedback が成功後に context.json を残し次マージの feedback を誤 bail させる cleanup gap、#296 マージで実観測、Tier1)。 検証: 正常出力不変 (24 run 203.4s)、truncated meta.json を skip してクラッシュしないことを実機確認。docs-lint / markdownlint OK。 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
aloekun
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…llow-up todo (#295/#296 post-merge feedback) (#297) PR #295/#296 の post-merge feedback 採用候補を反映。(1) analyze-takt-timings.ps1 L47 の ConvertFrom-Json を try/catch で保護し、crashed/in-progress run の truncated meta.json 1 件で集計ループ全体が中断しないよう skip (L63 の phase 行 parse と同流儀。CodeRabbit の startTime null ガードが塞げなかった JSON 自体の破損を補完)。(2) takt-step-timings.md の「正規化前提」と述べつつ未正規化 avg を 150s と直接『未達』断定していた矛盾を、diff サイズ交絡を明記し最終判定を R4/ADR-056 に委ねる記述に修正。 あわせて todo 起案: 順位327 (多段コミットの ADR/observability 更新チェックリストを dev-conventions に、Tier3)、順位328 (post-merge feedback が成功後に context.json を残し次マージの feedback を誤 bail させる cleanup gap、#296 マージで実観測、Tier1)。 検証: 正常出力不変 (24 run 203.4s)、truncated meta.json を skip してクラッシュしないことを実機確認。docs-lint / markdownlint OK。 Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Summary
logs/*.jsonlのphase_start↔phase_completeをphaseExecutionIdで対に) から抽出する再現スクリプトscripts/analyze-takt-timings.ps1を追加docs/takt-step-timings.mdを追加 (median は偶数件で中央 2 値平均、-Untilで point-in-time スナップショットを再現可能)Context
Why: R4 (ADR-047/056 の採否判定) と R5/R6 の after 計測で「どの処理にどれだけ時間がかかっているか」を機械的に見る必要があった。simplicity execute が支配項 (avg 203s)、verify (refute) は 24 run 中 2 発火のみ、report/judge は各 6〜16s で軽量 — 最適化 leverage 点と「重いが必要」の許容判断の材料になる。
Trigger: R4 判定分析 / 「未計測の曖昧さを残さない」ユーザー要望。
Scope: 観測ツール + スナップショットのみ。R4 の採否判定自体 (ADR ステータス更新) は別 PR。
Validation
pnpm pushpre-push review: verdict=APPROVE (2026-07-19)。初回 push で simplicity が doc の R4 断定を master 文脈と矛盾として REJECT → fix step が「判定未確定 (期限 07-31)」に整合修正 → post-takt re-gate 通過。pnpm lint:docs/ markdownlint OK。-Untilによる snapshot 再現、median 偶数件の中央 2 値平均を確認。References
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新機能
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