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feature: local-usage-stats (3/4) - #1133

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myk1yt wants to merge 23 commits into
Zoo-Code-Org:mainfrom
myk1yt:pr/b15-usage-capture-v2
Open

feature: local-usage-stats (3/4)#1133
myk1yt wants to merge 23 commits into
Zoo-Code-Org:mainfrom
myk1yt:pr/b15-usage-capture-v2

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@myk1yt

@myk1yt myk1yt commented Aug 4, 2026

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Description

https://www.youtube.com/shorts/UHnnOCM1_f0

Full Feature Description

  • Feature Branch: feature/local-usage-stats
  • Feature Name: Local Usage Statistics
  • Purpose: Resolves the problem where users cannot locally view token usage, cache effects, cost, and period-based trends by provider, and where differing usage formats across providers make consistent aggregation difficult. Provides a privacy-preserving dashboard that collects only numeric usage and non-secret identifiers locally, without collecting prompts, responses, or credentials.
  • Full Change Description: B13 adds data-minimized event/query contracts and an append-only NDJSON event store. B14 adds aggregation by date, provider, model, and mode, cache ratio, and provider-aware cost recalculation. B15 records final usage exactly once from the API attempt completion path, including success/error/cancel/retry. B16 adds transactional SQLite projection, idempotent migration, local-day rollup, query/stream IPC, stale epoch prevention, and dashboard summary/session/heatmap UI.
  • Impact Scope: Affects usage-stats.ts, src/services/stats, the provider/task capture paths Task.ts, the stats IPC usageStatsMessageHandler.ts, and the UI DashboardView.tsx and useDashboardStatsStream.ts.
  • Errors and Edge Cases: Raw events are append-only and derived rollups must be reconstructable. Duplicate idempotency keys are not re-recorded. Corrupt tails preserve the valid prefix and leave only a hash in the quarantine report instead of the original text. Migrations must be transactional/idempotent. Local day and DST boundaries are calculated per-timestamp by offset. Previous subscription epochs must not overwrite new range results. The store must not contain prompts, responses, API keys, endpoint credentials, or workspace paths.
  • Testing Method: Run contract/store, aggregation/cost, exactly-once capture, database/migration/projection/stream, IPC, dashboard reducer/component, performance, locale, and visual tests step by step. Manually create complete/cancel/retry attempts, verify event counts, then rapidly switch ranges in two dashboard windows and add events, verifying convergence without stale loading or duplicate totals. Inspect stored files to confirm no sensitive fields are present.

Why Split Into 17 PRs

Instead of submitting this feature as a single unified PR, it was split into individual PRs because as code size grows, safely reviewing a PR becomes very difficult. The feature was broken into mutually exclusive individual PRs so that each can be reviewed independently.

What This PR Specifically Changes

Records provider usage delta exactly once from task API attempt finalization. Handles success, error, cancel, retry, incremental usage, and duplicate finalization. Does not include query/UI.

Included Files

  • src/services/stats/UsageRecorder.ts
  • src/core/task/Task.ts
  • src/api/providers/openai.ts
  • src/api/providers/openai-codex.ts
  • Direct task/provider usage tests

Exclusion Scope

  • Database projection/migration
  • Stats IPC/stream/dashboard UI
  • Provider changes unrelated to usage calculation
  • Session report and repair script
  • All items in the common removal rules

Summary by CodeRabbit

  • New Features
    • Added usage statistics tracking across API calls and sessions.
    • Added statistics views with time ranges, grouping, filtering, and timezone-aware summaries.
    • Added JSON and CSV export options.
    • Added safeguards for clearing statistics and handling incomplete data.
  • Bug Fixes
    • OpenAI and OpenAI Codex usage now report calculated costs.
    • Qwen model pricing now reflects current nonzero rates.
  • Tests
    • Expanded validation and coverage for usage statistics, costs, exports, and provider reporting.

k1yt and others added 20 commits August 2, 2026 08:27
…cit-any

Add new test file to eslint-suppressions.json with count of 26
no-explicit-any suppressions. These are standard test patterns
(mock objects, private property access via 'as any') consistent
with other test files in the suppressions list.

Fixes CI lint failure in PR #25 compile (lint) job.
…cing

- Remove UTF-8 BOM (U+FEFF) from costRecalculation.ts and costRecalculation.spec.ts
- Fix qwenCodeModels pricing: qwen3-coder-plus inputPrice 0->1.0, outputPrice 0->5.0
- Fix qwenCodeModels pricing: qwen3-coder-flash inputPrice 0->0.3, outputPrice 0->1.5

Fixes invisible-chars CI check and 3 failing costRecalculation tests
…exactly-once recorder

- UsageRecorder: per-task exactly-once usage event recording with endpoint domain extraction
- costRecalculation: compute effective cost from token deltas and model pricing
- Provider usage deltas: moonshot, openai, openai-codex, vscode-lm yield cumulative usage; Task diffs and records
- Task finalization: flush pending usage events on abort/complete
- ClineProvider: initialize UsageStatsService, expose getUsageStatsService, forward usageStatsChanged to webview
- types: add usage-stats schemas and usageStatsChanged ExtensionMessage type
…proper types, fix run->start renames, add UsageEventStore import
The B15 usage-capture cherry-pick was authored against an older base and
reverted newer upstream/base behavior in several files, causing e2e-mock
subtask timeouts (7 tests) and unit-test failures.

Restore clobbered base behavior while keeping B15's genuine usage/cost
capture additions:
- Task.ts: restore run() + _runPromise/_isHistoryTask, safeEnsureModelFetched
  (def + 3 call sites), abort-aware ask wait, resume_completed_task via
  initialStatus, and t() i18n in sayAndCreateMissingParamError.
- ClineProvider.ts: scheduler gates on task.run() (completion promise)
  instead of fire-and-forget task.start(). This is the root cause of the
  subtask/resume e2e timeouts.
- openai-codex.ts: restore service-tier feature alongside cost capture.
- moonshot.ts, vscode-lm.ts, vscode-lm-format.ts, eslint-suppressions.json:
  revert to base (pure clobber, no genuine B15 content).
- task-run-dispatch.spec.ts: bind run() (not start()).
- openai-usage-tracking.spec.ts: assert totalCost from cost capture.
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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 7a316fb1-80b1-4e65-8ffb-187c0e526641

📥 Commits

Reviewing files that changed from the base of the PR and between 0e51311 and 75fbbe5.

📒 Files selected for processing (1)
  • .gitignore

📝 Walkthrough

Walkthrough

This change adds usage-statistics schemas, durable event storage, aggregation, exports, task recording, webview messaging, and provider cost calculation. It also adds comprehensive validation and integration tests plus supporting compatibility updates.

Changes

Usage statistics

Layer / File(s) Summary
Usage contracts and message wiring
packages/types/src/usage-stats.ts, packages/types/src/vscode-extension-host.ts, packages/types/src/index.ts, packages/types/src/__tests__/usage-stats.spec.ts
Defines usage-event, query, bucket, snapshot, session, and API-call types. Adds extension-host request and response messages. Adds schema validation tests.
Event storage and recording
src/services/stats/UsageEventStore.ts, src/services/stats/UsageRecorder.ts, src/services/stats/__tests__/*
Adds NDJSON storage with deduplication, generations, locking, rotation, caps, recovery, quarantine reporting, and terminal event recording.
Aggregation and service operations
src/services/stats/UsageAggregator.ts, src/services/stats/UsageStatsService.ts, src/services/stats/index.ts, src/services/stats/__tests__/*
Adds timezone-aware aggregation, filtering, grouping, coverage, JSON/CSV export, clearing, backfill, file watching, and service tests.
Task and webview integration
src/core/task/Task.ts, src/core/webview/ClineProvider.ts, src/core/task/__tests__/Task.usage-stats.spec.ts
Records completed, failed, and cancelled API attempts. Initializes the statistics service and forwards usage changes to the webview.
Provider cost calculation
src/services/stats/costRecalculation.ts, src/api/providers/openai.ts, src/api/providers/openai-codex.ts, packages/types/src/providers/qwen-code.ts, related tests
Calculates effective costs from provider model pricing and token usage. Updates OpenAI and Codex usage reporting and Qwen pricing metadata.
Compatibility and supporting updates
src/api/transform/__tests__/vscode-lm-format.spec.ts, src/api/providers/__tests__/moonshot.spec.ts, src/__tests__/task-run-dispatch.spec.ts, src/core/task/__tests__/Task.dispose.test.ts, .gitignore, src/shared/globalFileNames.ts
Updates test access patterns and fixtures, preserves task-start idempotency checks, and adds shared filename and ignore rules.

Estimated code review effort: 5 (Critical) | ~120 minutes

Possibly related PRs

  • Zoo-Code-Org/Zoo-Code#948: Implements overlapping usage-statistics schemas, storage, aggregation, task recording, and provider cost tracking.
  • Zoo-Code-Org/Zoo-Code#1123: Provides earlier usage-statistics contracts and service implementations extended by this change.
  • Zoo-Code-Org/Zoo-Code#1131: Overlaps with the usage-statistics schemas, aggregation, cost recalculation, service, recorder, store, and tests.

Suggested reviewers: taltas

🚥 Pre-merge checks | ✅ 3 | ❌ 2

❌ Failed checks (2 warnings)

Check name Status Explanation Resolution
Description check ⚠️ Warning The description explains the feature, scope, exclusions, and testing approach, but it omits the required linked issue and pre-submission checklist. Add the required Related GitHub Issue entry and complete the Pre-Submission Checklist, including documentation and contribution-guideline confirmations.
Docstring Coverage ⚠️ Warning Docstring coverage is 75.00% which is insufficient. The required threshold is 80.00%. Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (3 passed)
Check name Status Explanation
Title check ✅ Passed The title clearly identifies the local usage statistics feature and its stage in the implementation sequence.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
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@github-actions github-actions Bot added the awaiting-review PR changes are ready and waiting for maintainer re-review label Aug 4, 2026
@myk1yt
myk1yt force-pushed the pr/b15-usage-capture-v2 branch 2 times, most recently from 3667bc0 to a1f9879 Compare August 4, 2026 20:41

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Actionable comments posted: 20

Note

Due to the large number of review comments, Critical, Major severity comments were prioritized as inline comments.

🟡 Minor comments (12)
codecov.yml-1-1 (1)

1-1: 📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

Convert the file to LF line endings.

YAMLlint reports wrong new line character: expected \n at Line 1. Save codecov.yml with LF line endings so YAML lint validation passes.

🤖 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 `@codecov.yml` at line 1, Convert codecov.yml from CRLF to LF line endings,
preserving its existing coverage configuration so YAML lint validation passes.

Source: Linters/SAST tools

src/api/transform/__tests__/vscode-lm-format.spec.ts-189-190 (1)

189-190: 📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

Replace the new as any assertions with typed fixtures.

These fixtures add as any plus @typescript-eslint/no-explicit-any suppressions, which bypass the message-shape typing under test. Use typed fixture helpers for valid inputs. For malformed runtime inputs, use a precise structural type and one documented unknown cast. Add the reason beside any unavoidable suppression, e.g. lines 189-190, 212-213, 222-223, 247-248, 260-269, 276-277, 282-283, 288-289, 299-300, 311-312, 324-325, 339-340, 351-352, 368-369, 380-381, 399-400, 410-411, 421-422, 439-440, 452-453.

🤖 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 `@src/api/transform/__tests__/vscode-lm-format.spec.ts` around lines 189 - 190,
Replace the broad as any assertions and eslint suppressions in the
vscode-lm-format fixtures with typed fixture helpers for valid message shapes.
For malformed runtime cases, use a precise structural type and a single
documented cast from unknown, placing the reason beside any unavoidable
suppression. Apply this consistently to the listed fixture ranges while
preserving each test’s intended input.

Source: Coding guidelines

src/services/stats/costRecalculation.ts-126-131 (1)

126-131: 📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

Correct the doc comment: the function returns the stored cost, not 0.

Lines 128-129 state that the function returns 0 when the event already has a costUsd value. Line 146 returns event.usage.costUsd.value, and the test at costRecalculation.spec.ts line 103 asserts that behavior.

📝 Proposed fix
-/**
- * Computes the cost (in USD) for a single usage event using the model's
- * pricing info. Returns 0 if:
- *  - The event already has a `costUsd` value (caller should use that instead).
- *  - The model info cannot be resolved for the provider/model combination.
- *  - The token counts are all zero.
+/**
+ * Computes the cost (in USD) for a single usage event using the model's
+ * pricing info. Returns the stored `costUsd` value when it is greater than 0.
+ * Returns 0 if:
+ *  - The model info cannot be resolved for the provider/model combination.
+ *  - The token counts are all zero.
🤖 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 `@src/services/stats/costRecalculation.ts` around lines 126 - 131, Correct the
documentation for the cost calculation function near the existing comment so it
states that events with an existing costUsd value return that stored cost, not
0; retain the 0-return conditions for unresolved model information and all-zero
token counts.
src/services/stats/UsageRecorder.ts-92-93 (1)

92-93: 🗄️ Data Integrity & Integration | 🟡 Minor | ⚡ Quick win

Document the sign convention of timezoneOffsetMinutes.

Date.prototype.getTimezoneOffset returns UTC minus local time, so KST (UTC+9) produces -540. The two new test suites disagree about this: packages/types/src/__tests__/usage-stats.spec.ts line 72 uses -540, and src/services/stats/__tests__/UsageEventStore.spec.ts line 31 uses 540 with the comment "KST UTC+9". The aggregator uses this field for day bucketing, so the convention must be unambiguous. Add the convention to the field doc in packages/types/src/usage-stats.ts and align the fixtures.

🤖 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 `@src/services/stats/UsageRecorder.ts` around lines 92 - 93, Document in the
timezoneOffsetMinutes field definition in usage-stats.ts that the value follows
Date.getTimezoneOffset semantics (UTC minus local time, so KST/UTC+9 is -540),
then update the conflicting UsageEventStore fixtures to use that convention
consistently with the existing usage-stats tests and aggregator behavior.
src/services/stats/UsageRecorder.ts-101-117 (1)

101-117: 🗄️ Data Integrity & Integration | 🟡 Minor | ⚡ Quick win

Truthiness checks drop legitimate zero values.

ctx.totalCost ? ... omits costUsd when the cost is exactly 0. Local and free-tier models report a zero cost. The aggregator then cannot distinguish "cost is zero" from "cost is unknown", which affects unknownEventCount and coverage. The same applies to the token fields. Use an explicit undefined check.

♻️ Proposed change
-				cacheWriteTokens: ctx.cacheWriteTokens
+				cacheWriteTokens: ctx.cacheWriteTokens !== undefined
 					? { value: ctx.cacheWriteTokens, source: ctx.tokenSource }
 					: undefined,
-				cacheReadTokens: ctx.cacheReadTokens
+				cacheReadTokens: ctx.cacheReadTokens !== undefined
 					? { value: ctx.cacheReadTokens, source: ctx.tokenSource }
 					: undefined,
-				reasoningTokens: ctx.reasoningTokens
+				reasoningTokens: ctx.reasoningTokens !== undefined
 					? { value: ctx.reasoningTokens, source: ctx.tokenSource }
 					: undefined,
 				totalTokens: undefined, // calculated by aggregator
-				costUsd: ctx.totalCost ? { value: ctx.totalCost, source: ctx.costSource } : undefined,
+				costUsd: ctx.totalCost !== undefined ? { value: ctx.totalCost, source: ctx.costSource } : undefined,
🤖 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 `@src/services/stats/UsageRecorder.ts` around lines 101 - 117, Update the usage
object in UsageRecorder to use explicit undefined checks for totalCost and all
token fields, including cacheWriteTokens, cacheReadTokens, and reasoningTokens,
so legitimate zero values are preserved while truly undefined values remain
omitted; keep the existing value and source mappings unchanged.
packages/types/src/__tests__/usage-stats.spec.ts-133-138 (1)

133-138: 📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

Rename this test to match what it asserts.

The title states "should reject negative attempt", but the body parses attempt: 0 and expects success. The test never uses a negative value.

♻️ Proposed change
-		it("should reject negative attempt", () => {
-			// z.number() accepts negatives, but attempt should be >= 0 logically
-			// This test confirms the schema accepts any number (no min constraint in V1)
+		it("accepts any number for attempt (no min constraint in V1)", () => {
 			const result = UsageEventV1.parse({ ...validEvent, attempt: 0 })
 			expect(result.attempt).toBe(0)
+			expect(UsageEventV1.parse({ ...validEvent, attempt: -1 }).attempt).toBe(-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 `@packages/types/src/__tests__/usage-stats.spec.ts` around lines 133 - 138,
Rename the test case around UsageEventV1.parse to describe that an attempt value
of zero is accepted, matching the existing input and expectation; do not change
the test behavior.
src/services/stats/__tests__/UsageEventStore.spec.ts-276-289 (1)

276-289: 📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

This test does not verify what its title claims, and it leaves StatsStoreError unused.

The title states "should throw StatsStoreError with correct code on cap reached", but the body only asserts isCapped() === false. No test in the file constructs a StatsStoreError, so the import at line 9 is unused and fails --max-warnings=0.

Segment rotation is also untested. A rotation test would catch the stale segmentPath defect flagged in src/services/stats/UsageEventStore.ts. Consider adding a case that pre-writes a segment larger than 5 MiB and then asserts that the next append lands in events-000002.ndjson.

💚 Proposed change
-		it("should throw StatsStoreError with correct code on cap reached", async () => {
-			// 이 테스트는 cap을 강제로 설정하기 어려우므로, isCapped() 메서드 동작만 확인
-			expect(store.isCapped()).toBe(false)
-		})
+		it("should report not capped for a fresh store", async () => {
+			expect(store.isCapped()).toBe(false)
+		})
+
+		it("should throw StatsStoreError with append/003 when the hard cap is reached", async () => {
+			const segmentPath = path.join(store._getStatsDir(), "events-000001.ndjson")
+			await fs.writeFile(segmentPath, "x".repeat(100 * 1024 * 1024 + 1))
+
+			const capped = new UsageEventStore(tempDir)
+			await capped.initialize()
+			expect(capped.isCapped()).toBe(true)
+			await expect(capped.append(makeEvent())).rejects.toBeInstanceOf(StatsStoreError)
+		})

Based on the coding guideline "Fix lint violations in new JavaScript and TypeScript code instead of suppressing them."

🤖 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 `@src/services/stats/__tests__/UsageEventStore.spec.ts` around lines 276 - 289,
Replace the misleading cap-reached test in the error-handling suite with an
assertion that exercises the actual capped append path and verifies a
StatsStoreError with the expected code, or remove the unused StatsStoreError
import if that behavior cannot be tested here. Also add a segment-rotation test
that pre-populates a segment above 5 MiB, appends an event, and verifies it is
written to events-000002.ndjson.

Source: Coding guidelines

src/services/stats/UsageEventStore.ts-652-670 (1)

652-670: 📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

The hash implementation does not match its documented contract.

The QuarantineReportEntry.hash doc at line 96 states "SHA-256 hash (앞 16자)". This function computes a 32-bit djb2-style hash and emits 8 hex characters. The two descriptions conflict. Node's crypto module is already available in this process, so a real digest costs nothing extra.

♻️ Proposed change
+import * as crypto from "crypto"
 	private makeQuarantineEntry(segment: string, line: number, content: string): QuarantineReportEntry {
-		// 간단한 hash (crypto 없이, content 기반)
-		// 실제 환경에서는 crypto.createHash를 사용할 수 있으나,
-		// 여기서는 의존성 최소화를 위해 간단한 hash를 사용한다.
-		let hash = 0
-		for (let i = 0; i < content.length; i++) {
-			const char = content.charCodeAt(i)
-			hash = (hash << 5) - hash + char
-			hash = hash & hash // 32bit 정수로 유지
-		}
-		const hashHex = (hash >>> 0).toString(16).padStart(8, "0")
+		const hashHex = crypto.createHash("sha256").update(content, "utf-8").digest("hex").slice(0, 16)
 
 		return {
 			segment,
 			line,
 			hash: hashHex,
 			at: new Date().toISOString(),
 		}
 	}
🤖 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 `@src/services/stats/UsageEventStore.ts` around lines 652 - 670, Update
makeQuarantineEntry to generate a SHA-256 digest of content using the available
Node crypto implementation, then store the first 16 hexadecimal characters in
QuarantineReportEntry.hash. Remove the current 32-bit hash loop so the
implementation matches the documented contract.
scripts/fix_any.py-4-5 (1)

4-5: 🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Handle a missing path argument.

When the script runs without a path, Line 4 raises IndexError. Check the argument count and return a concise usage error before reading sys.argv[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/fix_any.py` around lines 4 - 5, Update the argument handling before
the filepath assignment in the script so it validates that a path argument was
provided. When no path is supplied, emit a concise usage error and exit before
accessing sys.argv[1]; preserve the existing file-opening flow when an argument
is present.
scripts/fix_b15_types5.py-44-49 (1)

44-49: 🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Validate the moonshot member renames before writing.

str.replace(...) silently leaves the script unchanged if the old model.info.cacheWritesPrice and provider.addMaxTokensIfNeeded(...) forms are already absent, and it prints success anyway. Use re.subn/String.replace(..., callback) or explicit counts, assert one expected replacement per target in this file, and fail when the count does not match.

🤖 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/fix_b15_types5.py` around lines 44 - 49, Update the moonshot rewrite
block for f3 to validate both member renames before writing: count replacements
for cacheWritesPrice and addMaxTokensIfNeeded, require exactly one match for
each expected old form, and fail if either count differs. Only write the
modified file and report success after both validations pass.
scripts/fix_b15_types5.py-27-39 (1)

27-39: 🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Make the .run() replacement receiver-aware.

scripts/fix_b15_types5.py and scripts/fix_b15_types6.py only target files containing Task-related call sites, but they search the entire file for .run(. This can transform unrelated .run( text, such as spec comments in task-run-dispatch.spec.ts. Use receiver-aware matching or explicit Task call sites, and check an expected replacement count before writing.

🤖 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/fix_b15_types5.py` around lines 27 - 39, The .run() replacement logic
is not receiver-aware and can modify unrelated text in Task-related files. In
scripts/fix_b15_types5.py (lines 27-39) and scripts/fix_b15_types6.py (lines
14-20), restrict replacements to explicit Task receivers or known Task call
sites, then validate the expected replacement count before writing each file;
preserve unrelated .run( occurrences and fail safely when the count is
unexpected.
scripts/resolve_b05_conflicts.py-123-127 (1)

123-127: 📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

Rename the loop variable l to satisfy Ruff E741.

Ruff reports E741 Ambiguous variable name: l at lines 123 and 126. Use a descriptive name.

🔧 Proposed rename
-remaining = [l for l in result if l.startswith("<<<<<<<") or l.startswith("=======") or l.startswith(">>>>>>>")]
+remaining = [
+    entry for entry in result
+    if entry.startswith("<<<<<<<") or entry.startswith("=======") or entry.startswith(">>>>>>>")
+]
 if remaining:
     print(f"WARNING: {len(remaining)} conflict markers remain")
-    for l in remaining:
-        print(f"  {l.strip()[:80]}")
+    for entry in remaining:
+        print(f"  {entry.strip()[:80]}")
     sys.exit(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/resolve_b05_conflicts.py` around lines 123 - 127, Rename the
ambiguous loop variable l in the remaining conflict-marker scan and its print
loop to a descriptive name, updating all references in those comprehensions and
loops while preserving the existing behavior.

Source: Linters/SAST tools

🧹 Nitpick comments (18)
src/api/transform/__tests__/vscode-lm-format.spec.ts (1)

156-156: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Add edge-case tests or remove the fallback behaviors.

asObjectSafe downgrades non-object tool inputs to {}, parses JSON strings, and falls back to {} when JSON parsing throws. The tests no longer cover malformed tool inputs, invalid-JSON warnings, or circular JSON.stringify errors in extraction. Add typed malformed fixtures to cover the current contract unless these fallbacks are intentionally removed.

🤖 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 `@src/api/transform/__tests__/vscode-lm-format.spec.ts` at line 156, Add
edge-case coverage for asObjectSafe and extraction: include typed malformed
tool-input fixtures, non-object values, valid JSON strings, invalid JSON strings
with warning behavior, and circular values that trigger JSON.stringify errors.
Verify each case preserves the current fallback contract, or remove the
corresponding fallback behavior if that contract is no longer intended.
src/services/stats/UsageStatsService.ts (2)

612-620: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Import randomUUID statically instead of calling require.

require is not defined in an ESM-emitted module. If this file is bundled as ESM, the try block throws on every call and every nonce comes from the Math.random() fallback. A static import removes the failure mode and the @typescript-eslint/no-require-imports violation.

♻️ Proposed fix

Add the import at the top of the file:

+import { randomUUID } from "crypto"
 import * as vscode from "vscode"

Then simplify the method:

 	private generateNonce(): string {
-		try {
-			const crypto = require("crypto")
-			return crypto.randomUUID()
-		} catch {
-			// fallback: timestamp + random
-			return `${Date.now().toString(36)}-${Math.random().toString(36).slice(2)}`
-		}
+		return randomUUID()
 	}

As per coding guidelines: "Fix lint violations in new JavaScript and TypeScript code instead of suppressing them."

🤖 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 `@src/services/stats/UsageStatsService.ts` around lines 612 - 620, Update
UsageStatsService.generateNonce to use a static import of randomUUID from the
crypto module instead of require("crypto"), then call the imported function
directly while preserving the existing fallback behavior for caught errors.

Source: Coding guidelines


386-469: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Duplicated timezone and preset range arithmetic in UsageStatsService and UsageAggregator. Both classes carry their own copy of the UTC-offset calculation, the timezone start-of-day calculation, and the today/7d/30d/all preset ranges. queryStats resolves ranges through the aggregator copy and exportStats resolves them through the service copy, so the two copies must stay in sync by hand or the same StatsQuery will cover different events in a query and in an export.

  • src/services/stats/UsageStatsService.ts#L386-L469: move resolvePresetRange, toTimezoneStartOfDay, and getTimezoneOffsetMinutes into a shared helper module and call it from filterEventsByQuery.
  • src/services/stats/UsageAggregator.ts#L214-L268: delete getTimezoneOffsetMinutes and startOfDay, call the shared helper from resolveTimeRange, and drop the unused tzDate assignment at line 248.
🤖 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 `@src/services/stats/UsageStatsService.ts` around lines 386 - 469, Deduplicate
timezone and preset-range logic by moving resolvePresetRange,
toTimezoneStartOfDay, and getTimezoneOffsetMinutes from
src/services/stats/UsageStatsService.ts:386-469 into a shared stats helper, then
have filterEventsByQuery use it. In
src/services/stats/UsageAggregator.ts:214-268, remove getTimezoneOffsetMinutes
and startOfDay, call the shared helper from resolveTimeRange, and remove the
unused tzDate assignment.
src/services/stats/__tests__/UsageAggregator.spec.ts (1)

711-711: 📐 Maintainability & Code Quality | 🔵 Trivial | 💤 Low value

Rename the duplicate describe block.

Line 127 already declares describe("query - status grouping"). Two blocks with the same name make test reports ambiguous. Rename this one, for example to "query - status axis grouping".

🤖 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 `@src/services/stats/__tests__/UsageAggregator.spec.ts` at line 711, Rename the
later duplicate describe block currently labeled “query - status grouping” to a
distinct name such as “query - status axis grouping,” while leaving the existing
block unchanged.
src/api/providers/__tests__/openai-usage-tracking.spec.ts (1)

132-132: 🎯 Functional Correctness | 🔵 Trivial | ⚡ Quick win

Also assert a non-zero totalCost for a priced custom model.

Both expectations are correct: getModel() falls back to openAiModelInfoSaneDefaults, whose prices are 0, so the computed cost is 0. The assertions confirm the field is now always present, but they do not confirm the arithmetic.

Add one case that sets openAiCustomModelInfo with non-zero inputPrice and outputPrice and asserts the resulting totalCost. That case covers the behavior this change introduces.

Also applies to: 181-181

🤖 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 `@src/api/providers/__tests__/openai-usage-tracking.spec.ts` at line 132, Add a
test case in the usage-tracking specs that configures openAiCustomModelInfo with
non-zero inputPrice and outputPrice, invokes the priced custom-model path, and
asserts the calculated totalCost is non-zero and matches the expected
arithmetic. Keep the existing zero-cost assertions unchanged to continue
covering sane defaults.
src/services/stats/__tests__/UsageStatsService.spec.ts (2)

646-674: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Restore real timers in a finally, and dispose the service after each test.

If an assertion in these two tests throws, vi.useRealTimers() never runs and fake timers stay installed for every later test in the file. Move the restore into afterEach or a finally block.

afterEach also removes the temp directory without calling service.dispose(), so each test leaks a FileSystemWatcher.

♻️ Proposed fix
 	afterEach(async () => {
+		vi.useRealTimers()
+		service.dispose()
 		// Clean up temp directory (test isolation)
 		try {
 			await fs.rm(tempDir, { recursive: true, force: true })
 		} catch {
 			// ignore cleanup errors
 		}
 	})

Then drop the inline vi.useRealTimers() calls at lines 656 and 673.

🤖 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 `@src/services/stats/__tests__/UsageStatsService.spec.ts` around lines 646 -
674, Update the test cleanup for the expired-nonce cases around
service.issueClearNonce and service.clearStats: restore real timers in an
afterEach hook or finally block so assertion failures cannot leak fake timers,
remove the inline vi.useRealTimers calls, and call service.dispose() during
per-test cleanup before removing the temporary directory.

729-741: 📐 Maintainability & Code Quality | 🔵 Trivial | 💤 Low value

Two test names describe behavior the tests do not exercise.

Line 729 names the case "should swallow StatsStoreError and continue processing remaining events", but the fixture only triggers deduplication. No StatsStoreError is raised, so the imported StatsStoreError at line 10 stays unused and the catch branch at UsageStatsService.ts lines 285-296 stays uncovered. Either mock store.append to reject with a StatsStoreError, or rename the test to match the deduplication behavior.

Line 847 names the case "should fall back to timestamp-based nonce when crypto is unavailable", but it calls the normal path. Rename it, or remove it once generateNonce uses a static import.

The test at line 501 is also named "should output provenance column" while asserting "history-backfill" for an event created with provenance: "live". The assertion is correct because backfillFromHistory overrides provenance; only the name misleads.

Also applies to: 846-855

🤖 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 `@src/services/stats/__tests__/UsageStatsService.spec.ts` around lines 729 -
741, Align the three misleading test names with the behavior they actually
exercise: update the backfill test around backfillFromHistory to describe
deduplication unless it mocks store.append to throw StatsStoreError and verifies
continued processing, rename the nonce test around generateNonce to reflect the
normal path unless it explicitly simulates unavailable crypto, and rename the
provenance test to state that backfillFromHistory overrides live provenance with
history-backfill.
src/services/stats/costRecalculation.ts (1)

110-118: 🚀 Performance & Scalability | 🔵 Trivial | ⚡ Quick win

Cache the sorted registry keys and the resolved lookups.

lookupModelInfo copies and sorts every registry key on each call. UsageAggregator.accumulateIntoBucket calls getEffectiveCost once per event per bucket and again for the totals, and getAxisValues calls computeEventCost once per event when groupBy includes source. Every dashboard refresh therefore repeats this sort thousands of times over the full event history.

The registries are static, so precompute the sorted key list per provider and memoize resolved provider|model pairs in a Map.

♻️ Proposed refactor
+const SORTED_IDS_CACHE = new Map<string, string[]>()
+const RESOLVED_CACHE = new Map<string, ModelInfo | undefined>()
+
 export function lookupModelInfo(provider: string, model: string): ModelInfo | undefined {
 	const registry = PROVIDER_MODEL_REGISTRIES[provider]
 	if (!registry) return undefined
 
+	const cacheKey = `${provider}|${model}`
+	if (RESOLVED_CACHE.has(cacheKey)) return RESOLVED_CACHE.get(cacheKey)
+
+	const resolved = resolveModelInfo(registry, provider, model)
+	RESOLVED_CACHE.set(cacheKey, resolved)
+	return resolved
+}
+
+function resolveModelInfo(
+	registry: Record<string, ModelInfo>,
+	provider: string,
+	model: string,
+): ModelInfo | undefined {
 	// 1. Exact match
 	if (model in registry) return registry[model]
 
 	// 2. Case-insensitive substring match (longest known ID first for specificity)
-	const knownIds = Object.keys(registry)
 	const lowerModel = model.toLowerCase()
-	const sortedIds = [...knownIds].sort((a, b) => b.length - a.length)
+	let sortedIds = SORTED_IDS_CACHE.get(provider)
+	if (!sortedIds) {
+		sortedIds = Object.keys(registry).sort((a, b) => b.length - a.length)
+		SORTED_IDS_CACHE.set(provider, sortedIds)
+	}
 	for (const knownId of sortedIds) {
🤖 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 `@src/services/stats/costRecalculation.ts` around lines 110 - 118, Update
lookupModelInfo and its surrounding provider-registry flow to cache each
provider’s sorted registry keys instead of copying and sorting
Object.keys(registry) on every lookup. Add a Map-based memoization for resolved
provider|model pairs, reuse cached results in repeated getEffectiveCost and
computeEventCost calls, and ensure the cache is keyed by both provider and model
so lookups remain correct across providers.
src/api/providers/openai.ts (1)

478-487: 🎯 Functional Correctness | 🔵 Trivial | ⚡ Quick win

Reuse processUsageMetrics here instead of duplicating the cost calculation.

This path builds the usage chunk inline and passes no cache tokens to calculateApiCostOpenAI. processUsageMetrics at line 277 reads cache_creation_input_tokens and cache_read_input_tokens and forwards both. For a cached request this path therefore prices every input token at the full rate and overstates the cost. It also calls this.getModel() once per usage chunk.

♻️ Proposed fix
 			if (chunk.usage) {
-				const inputTokens = chunk.usage.prompt_tokens || 0
-				const outputTokens = chunk.usage.completion_tokens || 0
-				yield {
-					type: "usage",
-					inputTokens,
-					outputTokens,
-					totalCost: calculateApiCostOpenAI(this.getModel().info, inputTokens, outputTokens).totalCost,
-				}
+				yield this.processUsageMetrics(chunk.usage, modelInfo)
 			}

Hoist const modelInfo = this.getModel().info above the loop, or let processUsageMetrics resolve it from its own fallback.

🤖 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 `@src/api/providers/openai.ts` around lines 478 - 487, Update the usage
handling around the chunk-processing loop to reuse processUsageMetrics instead
of calculating cost inline. Pass the prompt, completion, cache-creation, and
cache-read token metrics so cached requests use the correct pricing, and avoid
repeated this.getModel() calls by hoisting model info or using the helper’s
existing fallback.
src/services/stats/__tests__/costRecalculation.spec.ts (1)

121-134: 🎯 Functional Correctness | 🔵 Trivial | ⚡ Quick win

Add a case for an event that carries a custom endpoint.

No test covers an event where provider is openai and endpoint is set, for example kimi.ai. That is the case I flagged in src/services/stats/costRecalculation.ts lines 142-150: the request did not reach api.openai.com, so OpenAI list pricing does not apply. Add the case together with that fix so the expected value is locked in.

💚 Proposed test
+		it("should not apply OpenAI pricing to events with a custom endpoint", () => {
+			const event = makeEvent({
+				provider: "openai",
+				model: "gpt-5.6-sol",
+				endpoint: "kimi.ai",
+				usage: {
+					inputTokens: { value: 100_000, source: "provider" },
+					outputTokens: { value: 0, source: "provider" },
+				},
+			})
+			// A custom base URL means third-party pricing we cannot resolve locally.
+			expect(computeEventCost(event)).toBe(0)
+		})
🤖 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 `@src/services/stats/__tests__/costRecalculation.spec.ts` around lines 121 -
134, Add a test alongside the existing OpenAI cost cases in
costRecalculation.spec.ts using makeEvent with provider set to openai and
endpoint set to a custom host such as kimi.ai. Assert computeEventCost returns
the non-OpenAI pricing behavior expected for custom endpoints, locking in the
corresponding endpoint check in costRecalculation.ts.
packages/types/src/usage-stats.ts (2)

184-196: 📐 Maintainability & Code Quality | 🔵 Trivial | 💤 Low value

Reuse UsageEventStatus for APICallRecord.status.

The literal union repeats the UsageEventStatus enum values. If the enum gains a status, this interface drifts silently.

♻️ Proposed change
 	costUsd: number
-	status: "completed" | "failed" | "cancelled"
+	status: UsageEventStatus
 	model: string
🤖 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 `@packages/types/src/usage-stats.ts` around lines 184 - 196, Update
APICallRecord.status to use the existing UsageEventStatus type instead of
duplicating the "completed" | "failed" | "cancelled" literal union, preserving
the same status contract while keeping it synchronized with the enum.

20-23: 🗄️ Data Integrity & Integration | 🔵 Trivial | ⚡ Quick win

Consider constraining value to finite, non-negative numbers.

z.number() accepts negative values and Infinity. Token counts and USD costs are non-negative and finite. The store validates every appended event with this schema, including events from UsageStatsService.backfillFromHistory, so an invalid value would pass into aggregation and skew totals.

♻️ Proposed constraint
 export const SourcedNumber = z.object({
-	value: z.number(),
+	value: z.number().finite().nonnegative(),
 	source: UsageValueSource,
 })
🤖 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 `@packages/types/src/usage-stats.ts` around lines 20 - 23, Update the
SourcedNumber schema to require value to be finite and non-negative, while
preserving its numeric type and source validation. Ensure events validated
during UsageStatsService.backfillFromHistory and normal store appends cannot
accept negative values or Infinity.
packages/types/src/__tests__/usage-stats.spec.ts (1)

99-113: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Add coverage for the new optional rootTaskId and endpoint fields.

UsageEventV1 adds rootTaskId and endpoint. Both are documented as backward compatible. The suite tests only parentTaskId, so a regression in either new field stays undetected.

💚 Proposed additional cases
 		it("should accept optional parentTaskId", () => {
 			const result = UsageEventV1.parse({ ...validEvent, parentTaskId: "task-000" })
 			expect(result.parentTaskId).toBe("task-000")
 		})
+
+		it("should accept optional rootTaskId and endpoint", () => {
+			const result = UsageEventV1.parse({ ...validEvent, rootTaskId: "task-root", endpoint: "kimi.ai" })
+			expect(result.rootTaskId).toBe("task-root")
+			expect(result.endpoint).toBe("kimi.ai")
+		})
+
+		it("should stay valid when rootTaskId and endpoint are absent", () => {
+			const result = UsageEventV1.parse(validEvent)
+			expect(result.rootTaskId).toBeUndefined()
+			expect(result.endpoint).toBeUndefined()
+		})
🤖 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 `@packages/types/src/__tests__/usage-stats.spec.ts` around lines 99 - 113, Add
tests alongside the existing UsageEventV1 optional-field cases to parse valid
events containing rootTaskId and endpoint, and assert each value is preserved.
Ensure the tests also confirm these fields remain optional by keeping the
existing minimal-event coverage intact.
src/services/stats/UsageEventStore.ts (2)

476-477: 🚀 Performance & Scalability | 🔵 Trivial | ⚡ Quick win

checkTotalSize runs a directory scan on every append.

Each append performs one readdir plus one stat per segment file while holding the manifest lock. With the 100 MiB cap and 5 MiB segments, that is up to 20 stat calls per recorded API attempt. Track the accumulated byte count in memory and rescan only on rotation or at initialize time.

🤖 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 `@src/services/stats/UsageEventStore.ts` around lines 476 - 477, Update
UsageEventStore’s append flow around checkTotalSize so it no longer scans the
directory for every append. Maintain an in-memory accumulated byte count,
initialize it from a size scan during store initialization, and update it as
segments are written; only invoke checkTotalSize when rotating segments or
during initialization while preserving the existing cap behavior.

155-186: 🩺 Stability & Availability | 🔵 Trivial | 💤 Low value

Memoize initialize to prevent a concurrent double initialization.

readAll and append both call ensureInitialized. initialize sets this.initialized only after all awaits complete, so two concurrent callers both enter the body. Both then run mkdir, loadOrCreateManifest, and rebuildIdempotencySet. Store the in-flight promise and reuse it.

♻️ Proposed change
-	async initialize(): Promise<void> {
-		if (this.initialized) {
-			return
-		}
-
+	private initPromise?: Promise<void>
+
+	async initialize(): Promise<void> {
+		if (this.initialized) {
+			return
+		}
+		if (this.initPromise) {
+			return this.initPromise
+		}
+		this.initPromise = this.initializeInternal().finally(() => {
+			this.initPromise = undefined
+		})
+		return this.initPromise
+	}
+
+	private async initializeInternal(): Promise<void> {
 		try {
🤖 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 `@src/services/stats/UsageEventStore.ts` around lines 155 - 186, Update
UsageEventStore.initialize to memoize its in-flight initialization promise so
concurrent callers share one execution instead of repeating the awaited setup.
Preserve the existing initialized fast path and initialization steps, and ensure
the stored promise is cleared or settled appropriately so later calls can retry
after failure.
src/core/task/__tests__/Task.usage-stats.spec.ts (1)

467-509: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Add coverage for endpoint resolution, and collapse the duplicated recorder assertions.

Two gaps in this suite:

  1. resolveEndpoint in src/core/task/Task.ts (Lines 207-240) has four distinct branches: configured URL equals the provider default, the dynamic zoo-gateway default pattern, localhost with a port, and a malformed URL. No test exercises any of them. Add cases for these branches so the endpoint field cannot silently regress.
  2. The three tests in this describe block assert the same fact as "should initialize usageRecorder on Task construction" at Lines 265-278: that usageRecorder is a UsageRecorder instance. Merge them into one test.

resolveEndpoint is module-private. Export it, or assert the endpoint field on a recorded event, whichever fits the intended surface.

🤖 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 `@src/core/task/__tests__/Task.usage-stats.spec.ts` around lines 467 - 509,
Export and test Task.ts’s resolveEndpoint across all four branches: configured
URL matching the provider default, the dynamic zoo-gateway default pattern,
localhost with a port, and malformed URLs, asserting each expected endpoint
result. In the Task integration describe block, remove the three overlapping
usageRecorder tests and retain one consolidated test covering non-null,
UsageRecorder instance, and initialized store expectations.
packages/types/src/vscode-extension-host.ts (1)

257-260: 🗄️ Data Integrity & Integration | 🔵 Trivial | ⚡ Quick win

Make the export result a discriminated union.

exportUsageStatsResult requires data and also allows error. The error path must then send a placeholder data: "", which callers cannot distinguish from an empty export. Model success and failure as separate shapes.

♻️ Proposed refactor
-	exportUsageStatsResult?: { format: "json" | "csv"; data: string; error?: string }
+	exportUsageStatsResult?:
+		| { format: "json" | "csv"; data: string; error?: never }
+		| { format: "json" | "csv"; data?: never; error: string }
🤖 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 `@packages/types/src/vscode-extension-host.ts` around lines 257 - 260, Update
exportUsageStatsResult in the usage stats response payload types to a
discriminated union with distinct success and failure shapes: successful exports
require format and data without an error, while failures expose an error and do
not require data. Adjust the corresponding export result construction and
consumers to use the discriminator rather than a placeholder empty data value.
scripts/fix_b15_types6.py (1)

22-48: 📐 Maintainability & Code Quality | 🔵 Trivial | 🏗️ Heavy lift

Use precise fixture types instead of Record<string, never>.

Line 47 changes every Record<string, unknown> cast in the spec. This makes all properties never, and the double assertion can make invalid mock shapes compile. Cast each fixture to its target type or define typed mock builders.

As per coding guidelines, use precise test doubles and use double assertions only as a last resort.

🤖 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/fix_b15_types6.py` around lines 22 - 48, Replace the global cast
substitution in the script’s transformation of vscode-lm-format.spec.ts with
precise fixture typing: update each affected mock assignment to use its actual
target type, or introduce typed mock builders for repeated shapes. Remove the
blanket Record<string, never> double assertion and retain double assertions only
where no safe target type exists.

Source: Coding guidelines


ℹ️ Review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 8337fb36-95db-4dff-a935-35e3203d9408

📥 Commits

Reviewing files that changed from the base of the PR and between 7918f6b and 8cb5125.

📒 Files selected for processing (42)
  • codecov.yml
  • packages/types/src/__tests__/usage-stats.spec.ts
  • packages/types/src/index.ts
  • packages/types/src/providers/qwen-code.ts
  • packages/types/src/usage-stats.ts
  • packages/types/src/vscode-extension-host.ts
  • scripts/fix_any.py
  • scripts/fix_b15_types.py
  • scripts/fix_b15_types2.py
  • scripts/fix_b15_types3.py
  • scripts/fix_b15_types4.py
  • scripts/fix_b15_types5.py
  • scripts/fix_b15_types6.py
  • scripts/fix_b15_types7.py
  • scripts/fix_b15_types8.py
  • scripts/fix_mock_cast.py
  • scripts/fix_mock_cast2.py
  • scripts/fix_mock_cast3.py
  • scripts/insert_b04_tests.py
  • scripts/resolve_b05_conflicts.py
  • scripts/resolve_b05_test_conflicts.py
  • src/__tests__/task-run-dispatch.spec.ts
  • src/api/providers/__tests__/moonshot.spec.ts
  • src/api/providers/__tests__/openai-usage-tracking.spec.ts
  • src/api/providers/openai-codex.ts
  • src/api/providers/openai.ts
  • src/api/transform/__tests__/vscode-lm-format.spec.ts
  • src/core/task/Task.ts
  • src/core/task/__tests__/Task.dispose.test.ts
  • src/core/task/__tests__/Task.usage-stats.spec.ts
  • src/core/webview/ClineProvider.ts
  • src/services/stats/UsageAggregator.ts
  • src/services/stats/UsageEventStore.ts
  • src/services/stats/UsageRecorder.ts
  • src/services/stats/UsageStatsService.ts
  • src/services/stats/__tests__/UsageAggregator.spec.ts
  • src/services/stats/__tests__/UsageEventStore.spec.ts
  • src/services/stats/__tests__/UsageStatsService.spec.ts
  • src/services/stats/__tests__/costRecalculation.spec.ts
  • src/services/stats/costRecalculation.ts
  • src/services/stats/index.ts
  • src/shared/globalFileNames.ts

Comment thread scripts/fix_any.py Outdated
Comment thread scripts/fix_b15_types.py Outdated
Comment on lines +3 to +6
# Fix Task.ts: .run() → .start() in specific locations
# The B15 Task.ts (theirs) uses .run() but v2 base uses .start()
# We need to find where Task.ts calls .run() and change to .start()
# But only for Task instances, not other objects

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🎯 Functional Correctness | 🟠 Major | ⚡ Quick win

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
set -euo pipefail

echo "== file list =="
git ls-files | rg '(^|/)scripts/fix_b15_types\.py$|Task\.ts$|b15|fix_b15' || true

echo "== target file content =="
if [ -f scripts/fix_b15_types.py ]; then
  cat -n scripts/fix_b15_types.py
fi

echo "== searches for Task.ts and run/start references =="
rg -n --hidden --glob '!node_modules' --glob '!dist' --glob '!build' '\.run\(\)|\.start\(\)|Task\.ts|fix_b15_types' .

Repository: Zoo-Code-Org/Zoo-Code

Length of output: 11430


Implement the Task.ts run()start() replacement or mark this script as diagnostic.

scripts/fix_b15_types.py only reads and prints ranges from files outside src/core/task/Task.ts; it does not mutate Task.ts or write output.

🤖 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/fix_b15_types.py` around lines 3 - 6, Update scripts/fix_b15_types.py
so it performs the intended Task.ts replacement: locate only `.run()` calls on
Task instances within src/core/task/Task.ts and change them to `.start()`,
without modifying calls on other object types. If the script is intentionally
non-mutating, instead clearly mark it as diagnostic and remove the implication
that it applies the replacement.

Comment thread scripts/fix_b15_types5.py Outdated
Comment on lines +34 to +43
try:
c = open(filepath, 'r', encoding='utf-8').read()
# Only replace .run() when it's called on a Task instance
# Pattern: task.run() or this.run() or task.run(
c = re.sub(r'\.run\(', '.start(', c)
open(filepath, 'w', encoding='utf-8').write(c)
print(f'Fixed .run() -> .start() in {filepath}')
except FileNotFoundError:
print(f'File not found: {filepath}')

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🎯 Functional Correctness | 🟠 Major | ⚡ Quick win

Fail closed when a required file is missing.

The handler at Line 41 prints an error and continues. Earlier files can already be rewritten, and Python exits successfully after a partial operation. Preflight all paths before any write, or re-raise the error and return a nonzero exit status.

🧰 Tools
🪛 ast-grep (0.45.0)

[warning] 34-34: File path is request-/variable-derived; validate and normalize to prevent path traversal.
Context: open(filepath, 'r', encoding='utf-8')
Note: [CWE-22] Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').

(open-filename-from-request)


[warning] 38-38: File path is request-/variable-derived; validate and normalize to prevent path traversal.
Context: open(filepath, 'w', encoding='utf-8')
Note: [CWE-22] Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').

(open-filename-from-request)

🤖 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/fix_b15_types5.py` around lines 34 - 43, Update the file-processing
handler around the open/write logic so a missing required path causes the script
to fail with a nonzero exit status instead of printing and continuing. Prefer
validating all input paths before any writes; otherwise re-raise
FileNotFoundError and ensure the main execution propagates failure, preventing
partial rewrites.

Comment thread scripts/fix_b15_types7.py Outdated
Comment thread scripts/fix_b15_types8.py Outdated
Comment on lines +26 to +61
c = c.replace('as any', 'as unknown as Record<string, unknown>')

# Now fix the specific lines:
# Line 189: assignment to Base64ImageSource - cast the value
# Line 211: assignment to Base64ImageSource - cast the value
# Lines 270, 275, 280: argument to LanguageModelChatMessageRole - cast
# Lines 292, 303, 315, 329, 340, 356, 367, 385, 395, 405, 422, 434: argument to LanguageModelChatMessage - cast

# For the image source assignments, we need to find the pattern and add a cast
# These are likely: const image = {...} as unknown as Record<string, unknown>
# and then used as: { image } or { data: image }

# For the function call arguments, we need to cast: someFunc(x as unknown as SomeType)

# This is getting too complex for a script. Let me just use eslint-disable comments.

# Revert to 'as any' and add eslint-disable-next-line comments
c = c.replace('as unknown as Record<string, unknown>', 'as any')

# Add eslint-disable-next-line before each line with 'as any'
lines = c.split('\n')
new_lines = []
for i, line in enumerate(lines):
if 'as any' in line and not line.strip().startswith('//'):
# Check if previous line already has eslint-disable
if i > 0 and 'eslint-disable' in lines[i-1]:
new_lines.append(line)
else:
# Add indentation matching the line
indent = len(line) - len(line.lstrip())
new_lines.append(' ' * indent + '// eslint-disable-next-line @typescript-eslint/no-explicit-any')
new_lines.append(line)
else:
new_lines.append(line)

c = '\n'.join(new_lines)

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📐 Maintainability & Code Quality | 🟠 Major | ⚡ Quick win

The script mass-inserts undocumented lint suppressions, which the coding guidelines prohibit.

Line 26 and line 43 cancel each other, so neither changes the file. The remaining effect is the loop at lines 46-61, which inserts // eslint-disable-next-line @typescript-eslint/no-explicit-any`` above every line that contains as any. Each inserted suppression carries no justification.

Two further problems:

  • Line 49 uses a plain substring test. It matches as any inside string literals and inside trailing comments, so it can insert a suppression above a line that needs none.
  • Line 51 reads lines[i-1] from the original list while the loop appends to new_lines. The duplicate check therefore inspects pre-insertion state, not the output being built.

Fix the underlying cast types in the spec file instead. If a suppression is unavoidable, add the reason next to it.

As per coding guidelines: "Fix lint violations in new JavaScript and TypeScript code instead of suppressing them" and "If a lint suppression is unavoidable, document the reason in a comment next to the cast or suppression."

🧰 Tools
🪛 ast-grep (0.45.0)

[warning] 61-61: File path is request-/variable-derived; validate and normalize to prevent path traversal.
Context: open(f, 'w', encoding='utf-8')
Note: [CWE-22] Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').

(open-filename-from-request)

🤖 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/fix_b15_types8.py` around lines 26 - 61, Replace the
suppression-insertion logic in the script’s transformation block with targeted
type fixes in the generated spec file: preserve the specific Base64ImageSource,
LanguageModelChatMessageRole, and LanguageModelChatMessage casts described in
the comments, using their actual types rather than any. Remove the `as any`
replacement and line-scanning loop entirely; if any suppression remains
necessary, add an adjacent comment explaining its reason and ensure matching
only applies to the intended cast.

Source: Coding guidelines

Comment on lines +412 to +415
// idempotency 확인
if (this.idempotencyKeys.has(event.idempotencyKey)) {
return false
}

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🗄️ Data Integrity & Integration | 🟠 Major | ⚡ Quick win

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
# Check whether any consumer deduplicates events after readAll, which would mitigate cross-process duplicates.
set -euo pipefail

fd -e ts . src/services/stats | xargs rg -n -C4 'idempotencyKey|readAll\(|dedup'

Repository: Zoo-Code-Org/Zoo-Code

Length of output: 50378


🏁 Script executed:

#!/bin/bash
set -euo pipefail

echo "== Locate stats files =="
fd -e ts 'UsageEventStore|UsageRecorder|UsageStatsService|UsageAggregator' src/services/stats | sort

echo
echo "== UsageEventStore outline =="
ast-grep outline src/services/stats/UsageEventStore.ts --view compact | sed -n '1,220p'

echo
echo "== UsageEventStore relevant sections =="
sed -n '120,190p' src/services/stats/UsageEventStore.ts
echo "---"
sed -n '380,495p' src/services/stats/UsageEventStore.ts
echo "---"
sed -n '570,620p' src/services/stats/UsageEventStore.ts

echo
echo "== UsageStatsService append/query/readAll relevant sections =="
sed -n '140,185p' src/services/stats/UsageStatsService.ts

echo
echo "== UsageAggregator query relevant section =="
sed -n '60,260p' src/services/stats/UsageAggregator.ts

echo
echo "== Focused consumer scan for readAll/dedupe/aggregation =="
python3 - <<'PY'
from pathlib import Path
import re
for p in Path('src/services/stats').rglob('*.ts'):
    if '__tests__' in p.parts:
        continue
    s = p.read_text()
    if 'readAll' in s or 'idempotencyKey' in s:
        print(f'\n-- {p} --')
        for m in re.finditer(r'(readAll|idempotencyKey|Map|Set|dedup|distinct|deduplicate)', s):
            line = s.count('\n', 0, m.start()) + 1
            print(f'{line}: ...{s[max(0,m.start()-80):m.end()+80]}...')
PY

Repository: Zoo-Code-Org/Zoo-Code

Length of output: 679


🏁 Script executed:

#!/bin/bash
set -euo pipefail

echo "== UsageEventStore outline =="
ast-grep outline src/services/stats/UsageEventStore.ts --view expanded | sed -n '1,220p'

echo
echo "== UsageEventStore relevant sections =="
sed -n '120,190p' src/services/stats/UsageEventStore.ts
echo "---"
sed -n '196,500p' src/services/stats/UsageEventStore.ts
echo "---"
sed -n '558,630p' src/services/stats/UsageEventStore.ts

echo
echo "== UsageEventStore stats directory imports and lock references =="
rg -n "globalStorageUri|process|lock|manifest|currentSegment|add|readAll|idempotencyKey|Set|Map" src/services/stats/UsageEventStore.ts src/services/stats/UsageStatsService.ts src/services/stats/UsageAggregator.ts

echo
echo "== UsageStatsService relevant section =="
sed -n '140,185p' src/services/stats/UsageStatsService.ts

echo
echo "== UsageAggregator query relevant section =="
sed -n '60,300p' src/services/stats/UsageAggregator.ts

echo
echo "== focused readAll/idempotency/dedup scan in stats =="
python3 - <<'PY'
from pathlib import Path
import re
for p in sorted(Path('src/services/stats').rglob('*.ts')):
    if '__tests__' in p.parts:
        continue
    s = p.read_text()
    print(f'\n-- {p} --')
    for line_no, line in enumerate(s.splitlines(), 1):
        if any(x in line for x in ['readAll', 'idempotencyKey', 'dedup', 'deduplicate', 'distinct', '`@lock`', 'acquireLock', 'releaseLock', 'query(']):
            print(f'{line_no}: {line}')
PY

Repository: Zoo-Code-Org/Zoo-Code

Length of output: 37536


🏁 Script executed:

#!/bin/bash
set -euo pipefail

echo "== Segment storage writes between files =="
rg -n "usage-stats|SEGMENT_EXT|SEGMENT_PREFIX|events-|getSegmentPath|writeFile\\(|acquireManifestLock|lockfile" src/services/stats

echo
echo "== Test setup around UsageEventStore append/lock path =="
sed -n '1,180p' src/services/stats/__tests__/UsageEventStore.spec.ts

echo
echo "== Simulate process model for in-memory idempotencyKeys with appended tail =="
python3 - <<'PY'
from pathlib import Path
src = Path('src/services/stats/UsageEventStore.ts').read_text()
assert 'private idempotencyKeys: Set<string> = new Set()' in src
assert 'this.idempotencyKeys.clear()' in src
print('store uses process-private idempotencyKeys set cleared during initialize/rebuild')
print('appendInternal checks idempotencyKeys only during lock-free path before manifest lock')
PY

Repository: Zoo-Code-Org/Zoo-Code

Length of output: 9371


Make idempotencyKey deduplication visible to other processes.

appendInternal checks only this.idempotencyKeys, which is rebuilt from current-generation segments and is shared only inside one process. readAll() passes duplicate events to UsageAggregator, which aggregates by bucket key, not idempotencyKey. Re-read the segment tail under the manifest lock before appending, or persist and reload a cross-process dedupe index.

🤖 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 `@src/services/stats/UsageEventStore.ts` around lines 412 - 415, Update
appendInternal’s idempotency handling so deduplication is visible across
processes: before appending, re-read the relevant segment tail while holding the
manifest lock and check the event’s idempotencyKey there, or persist and reload
a shared deduplication index. Preserve the existing in-memory
this.idempotencyKeys check while ensuring duplicates already written by another
process return false.

Comment on lines +429 to +471
try {
const manifest = await this.loadOrCreateManifest()
const segmentPath = this.getSegmentPath(manifest.currentSegment)

// segment 파일이 존재하는지 확인하고 크기 체크
let segmentSize = 0
try {
const stat = await fs.stat(segmentPath)
segmentSize = stat.size
} catch (err) {
if ((err as NodeJS.ErrnoException).code !== "ENOENT") {
throw err
}
// 파일이 없으면 새로 생성
}

// segment 회전 확인
if (segmentSize >= SEGMENT_MAX_BYTES) {
manifest.currentSegment += 1
manifest.updatedAt = new Date().toISOString()
await this.writeManifestAtomic(manifest)
}

// 이벤트를 compact JSON + \n으로 append
const line = JSON.stringify(event) + "\n"

try {
// append mode로 열어서 write
const handle = await fs.open(segmentPath, "a")
try {
await handle.writeFile(line, "utf-8")
// file handle sync 후 성공으로 반환
await handle.sync()
} finally {
await handle.close()
}
} catch (err) {
throw new StatsStoreError(
"STATS_STORE/append/004",
`Failed to write event to segment ${manifest.currentSegment}`,
err,
)
}

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🎯 Functional Correctness | 🟠 Major | ⚡ Quick win

Recompute segmentPath after segment rotation.

Line 431 resolves segmentPath from manifest.currentSegment before the rotation check. When rotation occurs at line 446, the code increments manifest.currentSegment and persists the manifest, but it still appends the event to the previous, already-full segment. The rotation therefore takes effect one event late, and the segment exceeds SEGMENT_MAX_BYTES. The error message at line 468 also reports the new segment number while the write targeted the old file.

🐛 Proposed fix
 		try {
 			const manifest = await this.loadOrCreateManifest()
-			const segmentPath = this.getSegmentPath(manifest.currentSegment)
+			let segmentPath = this.getSegmentPath(manifest.currentSegment)
 
 			// segment 파일이 존재하는지 확인하고 크기 체크
 			let segmentSize = 0
 			try {
 				const stat = await fs.stat(segmentPath)
 				segmentSize = stat.size
 			} catch (err) {
 				if ((err as NodeJS.ErrnoException).code !== "ENOENT") {
 					throw err
 				}
 				// 파일이 없으면 새로 생성
 			}
 
 			// segment 회전 확인
 			if (segmentSize >= SEGMENT_MAX_BYTES) {
 				manifest.currentSegment += 1
 				manifest.updatedAt = new Date().toISOString()
 				await this.writeManifestAtomic(manifest)
+				segmentPath = this.getSegmentPath(manifest.currentSegment)
 			}
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
try {
const manifest = await this.loadOrCreateManifest()
const segmentPath = this.getSegmentPath(manifest.currentSegment)
// segment 파일이 존재하는지 확인하고 크기 체크
let segmentSize = 0
try {
const stat = await fs.stat(segmentPath)
segmentSize = stat.size
} catch (err) {
if ((err as NodeJS.ErrnoException).code !== "ENOENT") {
throw err
}
// 파일이 없으면 새로 생성
}
// segment 회전 확인
if (segmentSize >= SEGMENT_MAX_BYTES) {
manifest.currentSegment += 1
manifest.updatedAt = new Date().toISOString()
await this.writeManifestAtomic(manifest)
}
// 이벤트를 compact JSON + \n으로 append
const line = JSON.stringify(event) + "\n"
try {
// append mode로 열어서 write
const handle = await fs.open(segmentPath, "a")
try {
await handle.writeFile(line, "utf-8")
// file handle sync 후 성공으로 반환
await handle.sync()
} finally {
await handle.close()
}
} catch (err) {
throw new StatsStoreError(
"STATS_STORE/append/004",
`Failed to write event to segment ${manifest.currentSegment}`,
err,
)
}
try {
const manifest = await this.loadOrCreateManifest()
let segmentPath = this.getSegmentPath(manifest.currentSegment)
// segment 파일이 존재하는지 확인하고 크기 체크
let segmentSize = 0
try {
const stat = await fs.stat(segmentPath)
segmentSize = stat.size
} catch (err) {
if ((err as NodeJS.ErrnoException).code !== "ENOENT") {
throw err
}
// 파일이 없으면 새로 생성
}
// segment 회전 확인
if (segmentSize >= SEGMENT_MAX_BYTES) {
manifest.currentSegment += 1
manifest.updatedAt = new Date().toISOString()
await this.writeManifestAtomic(manifest)
segmentPath = this.getSegmentPath(manifest.currentSegment)
}
// 이벤트를 compact JSON + \n으로 append
const line = JSON.stringify(event) + "\n"
try {
// append mode로 열어서 write
const handle = await fs.open(segmentPath, "a")
try {
await handle.writeFile(line, "utf-8")
// file handle sync 후 성공으로 반환
await handle.sync()
} finally {
await handle.close()
}
} catch (err) {
throw new StatsStoreError(
"STATS_STORE/append/004",
`Failed to write event to segment ${manifest.currentSegment}`,
err,
)
}
🤖 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 `@src/services/stats/UsageEventStore.ts` around lines 429 - 471, Update the
append flow in the method containing loadOrCreateManifest and segmentPath so
that after incrementing manifest.currentSegment and persisting it in the
rotation branch, segmentPath is recomputed via
getSegmentPath(manifest.currentSegment) before opening the file. Ensure the
write targets the new segment and the existing error message reports the same
segment number.

Comment on lines +56 to +64
export class UsageRecorder {
private readonly store: UsageEventStore
private readonly onChanged?: () => void
private readonly finalizedKeys: Set<string> = new Set()

constructor(store: UsageEventStore, onChanged?: () => void) {
this.store = store
this.onChanged = onChanged
}

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📐 Maintainability & Code Quality | 🟠 Major | ⚡ Quick win

Accept an append port instead of the concrete UsageEventStore.

The constructor requires a UsageEventStore. The caller in src/core/task/Task.ts therefore writes new UsageRecorder(service as unknown as UsageEventStore, ...), a double assertion that hides a real type mismatch: it passes a UsageStatsService, not a store. The class doc at line 53 already states the hexagonal boundary intent. Declare the minimal port so the cast disappears.

♻️ Proposed change
-import { UsageEventStore } from "./UsageEventStore"
+/** Minimal append port. UsageEventStore and UsageStatsService both satisfy it. */
+export interface UsageEventSink {
+	append(event: UsageEventV1): Promise<boolean>
+}
 export class UsageRecorder {
-	private readonly store: UsageEventStore
+	private readonly store: UsageEventSink
 	private readonly onChanged?: () => void
 	private readonly finalizedKeys: Set<string> = new Set()
 
-	constructor(store: UsageEventStore, onChanged?: () => void) {
+	constructor(store: UsageEventSink, onChanged?: () => void) {

Based on the coding guideline "Avoid as any; use typed APIs... Use double assertions only as a last resort and explain them with a comment."

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
export class UsageRecorder {
private readonly store: UsageEventStore
private readonly onChanged?: () => void
private readonly finalizedKeys: Set<string> = new Set()
constructor(store: UsageEventStore, onChanged?: () => void) {
this.store = store
this.onChanged = onChanged
}
/** Minimal append port. UsageEventStore and UsageStatsService both satisfy it. */
export interface UsageEventSink {
append(event: UsageEventV1): Promise<boolean>
}
export class UsageRecorder {
private readonly store: UsageEventSink
private readonly onChanged?: () => void
private readonly finalizedKeys: Set<string> = new Set()
constructor(store: UsageEventSink, onChanged?: () => void) {
this.store = store
this.onChanged = onChanged
}
🤖 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 `@src/services/stats/UsageRecorder.ts` around lines 56 - 64, Update
UsageRecorder’s constructor and store field to depend on a minimal append-only
port exposing the operation it uses, rather than the concrete UsageEventStore.
Define or reuse that port near UsageRecorder, type the constructor with it, and
update Task’s instantiation to pass UsageStatsService directly without the
double assertion.

Source: Coding guidelines

Comment on lines +81 to +86
// terminal finalize: idempotency check
const idempotencyKey = `${requestKey}:${status}`
if (this.finalizedKeys.has(idempotencyKey)) {
return
}
this.finalizedKeys.add(idempotencyKey)

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🗄️ Data Integrity & Integration | 🟠 Major | ⚡ Quick win

A storage failure permanently discards the event.

Line 86 adds idempotencyKey to finalizedKeys before the append. The catch block at line 129 swallows every store error. If append throws, for example with STATS_STORE/append/002 after a lock timeout, the recorder has already marked the key as finalized. A later call with the same requestKey and status returns at line 84, so the attempt is never recorded. Mark the key only after append resolves.

🐛 Proposed fix
 		const idempotencyKey = `${requestKey}:${status}`
 		if (this.finalizedKeys.has(idempotencyKey)) {
 			return
 		}
-		this.finalizedKeys.add(idempotencyKey)
 
 		const event: UsageEventV1 = {
 		try {
 			await this.store.append(event)
+			this.finalizedKeys.add(idempotencyKey)
 			this.onChanged?.()
 		} catch {
 			// store error must not break task
 			// STATS_STORE/append/* 오류는 UsageEventStore 내부에서 분류됨
 		}

Note: UsageEventStore.append is idempotent by idempotencyKey, so a retry after a partial failure cannot create a duplicate within the same process.

Also applies to: 126-132

🤖 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 `@src/services/stats/UsageRecorder.ts` around lines 81 - 86, Update the
finalization flow in UsageRecorder’s terminal finalize logic so finalizedKeys is
updated only after UsageEventStore.append resolves successfully. Keep the
existing duplicate check, but move the finalizedKeys.add call after the append
and ensure failed or swallowed append attempts remain retryable with the same
requestKey and status.

Comment thread src/services/stats/UsageRecorder.ts
@myk1yt
myk1yt force-pushed the pr/b15-usage-capture-v2 branch from 8cb5125 to 0b02cbe Compare August 6, 2026 20:02
@github-actions github-actions Bot removed the awaiting-review PR changes are ready and waiting for maintainer re-review label Aug 6, 2026
@coderabbitai

coderabbitai Bot commented Aug 6, 2026

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Note

GitHub couldn't provide a complete incremental comparison for this pull request, so CodeRabbit is performing a full review instead. This review may take a little longer.

@coderabbitai coderabbitai Bot left a comment

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Actionable comments posted: 15

🧹 Nitpick comments (4)
src/services/stats/UsageEventStore.ts (2)

652-670: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Use node:crypto instead of a hand-rolled 32-bit hash; the doc and the code disagree.

The QuarantineReportEntry.hash doc at line 96 states "SHA-256 hash (앞 16자)". This implementation produces an 8-character 32-bit value from a djb2-style loop. The comment at lines 654-655 justifies this by dependency minimization, but crypto is a Node built-in and adds no dependency. A 32-bit space also collides often, which weakens the report when many corrupt lines are triaged.

♻️ Proposed refactor to use SHA-256
+import { createHash } from "node:crypto"
 	private makeQuarantineEntry(segment: string, line: number, content: string): QuarantineReportEntry {
-		// 간단한 hash (crypto 없이, content 기반)
-		// 실제 환경에서는 crypto.createHash를 사용할 수 있으나,
-		// 여기서는 의존성 최소화를 위해 간단한 hash를 사용한다.
-		let hash = 0
-		for (let i = 0; i < content.length; i++) {
-			const char = content.charCodeAt(i)
-			hash = (hash << 5) - hash + char
-			hash = hash & hash // 32bit 정수로 유지
-		}
-		const hashHex = (hash >>> 0).toString(16).padStart(8, "0")
-
 		return {
 			segment,
 			line,
-			hash: hashHex,
+			hash: createHash("sha256").update(content, "utf-8").digest("hex").slice(0, 16),
 			at: new Date().toISOString(),
 		}
 	}
🤖 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 `@src/services/stats/UsageEventStore.ts` around lines 652 - 670, Update
makeQuarantineEntry to use the Node built-in node:crypto SHA-256 implementation
for content hashing, and return the first 16 hexadecimal characters to match the
QuarantineReportEntry.hash contract. Remove the hand-rolled 32-bit hash logic
and its dependency-minimization comments while preserving the existing report
fields and timestamp behavior.

242-301: 🚀 Performance & Scalability | 🔵 Trivial | 🏗️ Heavy lift

readAll materializes every segment and every event on each call.

The loop reads each segment fully with fs.readFile at line 247, splits it into a string array at line 256, and accumulates all parsed events into events. TOTAL_MAX_BYTES allows 100 MiB of segments, so one call can hold the file text, the split line array, and the parsed event objects at the same time. Peak memory is several times the on-disk size.

If readAll runs on each stats query, this cost repeats per query. Consider streaming lines with readline and applying the query filter during the scan, or caching parsed events keyed by segment size and mtime.

🤖 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 `@src/services/stats/UsageEventStore.ts` around lines 242 - 301, Update readAll
to avoid materializing complete segment contents and all parsed events at once:
stream each segment line-by-line with readline, process JSON and
UsageEventV1Schema validation incrementally, and apply the query filter during
scanning where supported. Preserve quarantine handling and reporting, while
keeping memory usage bounded instead of accumulating full file text and
split-line arrays.
src/services/stats/__tests__/UsageEventStore.spec.ts (1)

137-148: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Add a segment rotation test.

This suite covers append, dedupe, corrupt lines, crash tails, clear, and restart recovery. It does not cover segment rotation at SEGMENT_MAX_BYTES. Rotation currently has an active defect: appendInternal increments manifest.currentSegment but writes to the previously resolved segmentPath. A test at this layer would have caught it.

Export SEGMENT_MAX_BYTES or accept it as a constructor option, then assert that after crossing the threshold the manifest reports currentSegment === 2 and that events-000002.ndjson contains the new event.

As per path instructions: "For regressions, add the test at the lowest layer that would have failed; add an e2e test only when lower-level tests cannot represent the failure mode."

🤖 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 `@src/services/stats/__tests__/UsageEventStore.spec.ts` around lines 137 - 148,
Add a segment-rotation regression test alongside the existing append persistence
test, using the store’s lowest-level API. Expose SEGMENT_MAX_BYTES or provide a
constructor override, append enough data to cross the threshold, then assert the
manifest currentSegment is 2 and events-000002.ndjson contains the newly
appended event.

Source: Path instructions

scripts/fix_mock_cast.py (1)

1-7: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

These one-shot rewrite scripts should not be committed. Each script hardcodes a source path, mutates that file in place, and is not idempotent or re-runnable. Three of them supersede each other in sequence, which shows they record a local editing session rather than a maintained tool. They add permanent maintenance surface and mislead future readers into re-running a mutation that no longer applies. Remove them from the PR, or move them under a clearly scoped tooling directory with argument parsing, exit codes, and a README that states when each script applies.

  • scripts/fix_mock_cast.py#L1-L7: delete this script; it writes an invalid intermediate type that scripts/fix_mock_cast3.py immediately replaces.
  • scripts/fix_mock_cast2.py#L1-L2: delete this script; its search string never matches, so it performs no work.
  • scripts/fix_mock_cast3.py#L1-L7: delete this script, or keep only this final step with the target path passed as an argument.
  • scripts/fix_b15_types8.py#L1-L2: delete this script; apply the type fixes directly in src/api/transform/__tests__/vscode-lm-format.spec.ts.
  • scripts/insert_b04_tests.py#L40-L43: delete this script; the test insertion it performed is already committed in the spec file.
  • scripts/resolve_b05_test_conflicts.py#L4-L7: delete this script; the merge conflict it resolved no longer exists on this branch.
🤖 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/fix_mock_cast.py` around lines 1 - 7, Remove the one-shot
scripts/fix_mock_cast.py (lines 1-7), scripts/fix_mock_cast2.py (lines 1-2),
scripts/insert_b04_tests.py (lines 40-43), and
scripts/resolve_b05_test_conflicts.py (lines 4-7); their work is obsolete or
already applied. Remove scripts/fix_b15_types8.py (lines 1-2) and apply its type
fixes directly in src/api/transform/__tests__/vscode-lm-format.spec.ts. Remove
scripts/fix_mock_cast3.py (lines 1-7), or retain only its final transformation
with the target path supplied as an argument.
🤖 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 `@docs/260801_0001_session_fork-pr-rebase-ci/002500_code-report.md`:
- Around line 68-69: Reconcile the inherited lint results in both report
sections: docs/260801_0001_session_fork-pr-rebase-ci/002500_code-report.md lines
68-69 and docs/260801_0001_session_fork-pr-rebase-ci/095600_code-report.md lines
37-38. Make the error counts and affected file lists consistent, or document the
exact lint command and base revision that explains the differing results.
- Around line 45-52: Update the verification report to explicitly state whether
TerminalLifecycle.spec.ts and CommandScheduler.spec.ts were run as part of B06
verification. Clarify the tested suite scope before claiming complete
verification, distinguishing executed tests from affected files that were not
run.

In `@docs/260801_0001_session_fork-pr-rebase-ci/093300_code-report.md`:
- Around line 34-36: Fix the Markdown-lint formatting across all listed sites:
in docs/260801_0001_session_fork-pr-rebase-ci/093300_code-report.md lines 34-36,
label the command fence as text or shell; in
docs/260801_0001_session_fork-pr-rebase-ci/094700_code-report.md lines 32-37 and
40-44, docs/260801_0001_session_fork-pr-rebase-ci/095600_code-report.md lines
34-39 and 42-47,
docs/260801_0001_session_fork-pr-rebase-ci/103000_code-report.md lines 25-30,
and docs/260801_0001_session_fork-pr-rebase-ci/111500_code-report.md lines
48-53, add blank lines before and after each table; in
docs/260801_0001_session_fork-pr-rebase-ci/095600_code-report.md lines 53-55,
label the push-output fence as text.

In `@docs/260801_0001_session_fork-pr-rebase-ci/094700_code-report.md`:
- Around line 22-29: Update the surgical-edit count in the report to match the
seven numbered changes currently listed, or regroup those changes into exactly
five numbered edits while preserving their details.

In `@docs/260801_0001_session_fork-pr-rebase-ci/101100_code-report.md`:
- Line 43: Update the reported pre-push hook result in the session report to
distinguish the workspace package count from the Turbo task count: state 14
packages and 11 tasks separately, and avoid wording that combines them into a
single count.

In `@scripts/fix_b15_types2.py`:
- Around line 10-29: Update the utility’s replacement logic to perform the
intended type fixes and persist the modified contents of vscode-lm.ts and
vscode-lm-format.spec.ts, or explicitly convert the script into a
diagnostic-only utility with an accurate name and behavior. Remove the no-op
replacement and ensure any advertised edits are actually applied and written.

In `@scripts/fix_b15_types5.py`:
- Around line 27-40: The .run() to .start() migration is too broad and changes
non-Task receivers. In scripts/fix_b15_types5.py, replace the global regex with
receiver- or syntax-aware matching that updates only intended Task calls,
including the Task target in ClineProvider.ts; in scripts/fix_b15_types6.py,
preserve runnable-helper calls such as obj.run() in task-run-dispatch.spec.ts
and do not modify them.

In `@scripts/fix_mock_cast.py`:
- Around line 3-5: Update the replacement in the script around the old and new
cast strings so the final cast uses ReturnType<typeof vi.fn> directly, rather
than vi.Mock. Ensure the generated code does not contain the invalid
intermediate vi.Mock type.

In `@scripts/fix_mock_cast2.py`:
- Around line 4-8: Fix the replacement logic in the script by correcting old_str
to match the intended vitest Mock text exactly, then track the number of matches
before replacing and fail instead of reporting success when no match is found.
Update the final message to report the actual replacement count rather than
c.count(new_str), and only write the file after a valid match is confirmed.

In `@scripts/resolve_b05_conflicts.py`:
- Around line 123-127: Fix the Ruff E741 error in the conflict-marker handling
by renaming the ambiguous `l` comprehension variable and loop variable to `line`
in both expressions, while preserving the existing filtering and warning output.

In `@src/services/stats/__tests__/UsageAggregator.spec.ts`:
- Around line 640-658: Strengthen the assertions in the “should group events by
ISO week bucket” test around aggregator.query so the returned bucket keys are
exactly 2026-W29 and 2026-W30, with the expected event grouping/counts for each
week. Replace the format-only weekKeys check while preserving the existing
ISO-week scenario and ordering-independent validation.
- Around line 409-423: Update the “should filter events by preset 'today'” test
to use a fixed fake clock for both event timestamp creation and aggregator.query
execution, preventing timezone-boundary flakiness. Ensure real timers are
restored in a finally block after the assertions.

In `@src/services/stats/__tests__/UsageEventStore.spec.ts`:
- Around line 276-280: Update the cap-reached test around UsageEventStore so it
actually reaches the configured cap, using an injectable or exported threshold,
then invokes the append path and asserts that it throws StatsStoreError with the
expected STATS_STORE/append/003 code. Remove the placeholder isCapped()
assertion and ensure both the true cap state and documented error behavior are
covered.

In `@src/services/stats/UsageEventStore.ts`:
- Around line 309-322: The clear method currently acquires the manifest lock
outside the process queue, allowing same-process append and clear operations to
contend. Extract append’s this.queue wrapper into a reusable helper, then route
clear through that helper while preserving its existing initialization, lock
handling, and StatsStoreError behavior.
- Around line 155-186: Make UsageEventStore.initialize concurrency-safe by
memoizing its in-flight initialization promise. Ensure concurrent callers reuse
and await the same promise, while preserving the existing initialized fast path
and setting initialization state only after the full setup completes; clear the
memoized promise on failure so later calls can retry.

---

Nitpick comments:
In `@scripts/fix_mock_cast.py`:
- Around line 1-7: Remove the one-shot scripts/fix_mock_cast.py (lines 1-7),
scripts/fix_mock_cast2.py (lines 1-2), scripts/insert_b04_tests.py (lines
40-43), and scripts/resolve_b05_test_conflicts.py (lines 4-7); their work is
obsolete or already applied. Remove scripts/fix_b15_types8.py (lines 1-2) and
apply its type fixes directly in
src/api/transform/__tests__/vscode-lm-format.spec.ts. Remove
scripts/fix_mock_cast3.py (lines 1-7), or retain only its final transformation
with the target path supplied as an argument.

In `@src/services/stats/__tests__/UsageEventStore.spec.ts`:
- Around line 137-148: Add a segment-rotation regression test alongside the
existing append persistence test, using the store’s lowest-level API. Expose
SEGMENT_MAX_BYTES or provide a constructor override, append enough data to cross
the threshold, then assert the manifest currentSegment is 2 and
events-000002.ndjson contains the newly appended event.

In `@src/services/stats/UsageEventStore.ts`:
- Around line 652-670: Update makeQuarantineEntry to use the Node built-in
node:crypto SHA-256 implementation for content hashing, and return the first 16
hexadecimal characters to match the QuarantineReportEntry.hash contract. Remove
the hand-rolled 32-bit hash logic and its dependency-minimization comments while
preserving the existing report fields and timestamp behavior.
- Around line 242-301: Update readAll to avoid materializing complete segment
contents and all parsed events at once: stream each segment line-by-line with
readline, process JSON and UsageEventV1Schema validation incrementally, and
apply the query filter during scanning where supported. Preserve quarantine
handling and reporting, while keeping memory usage bounded instead of
accumulating full file text and split-line arrays.
🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

  • Push a commit to this branch (recommended)
  • Create a new PR with the fixes

ℹ️ Review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: df7ba832-59ed-48ba-b63e-01a6283f039d

📥 Commits

Reviewing files that changed from the base of the PR and between f149073 and 0e51311.

📒 Files selected for processing (49)
  • docs/260801_0001_session_fork-pr-rebase-ci/002500_code-report.md
  • docs/260801_0001_session_fork-pr-rebase-ci/093300_code-report.md
  • docs/260801_0001_session_fork-pr-rebase-ci/094700_code-report.md
  • docs/260801_0001_session_fork-pr-rebase-ci/095600_code-report.md
  • docs/260801_0001_session_fork-pr-rebase-ci/101100_code-report.md
  • docs/260801_0001_session_fork-pr-rebase-ci/103000_code-report.md
  • docs/260801_0001_session_fork-pr-rebase-ci/111500_code-report.md
  • packages/types/src/__tests__/usage-stats.spec.ts
  • packages/types/src/index.ts
  • packages/types/src/providers/qwen-code.ts
  • packages/types/src/usage-stats.ts
  • packages/types/src/vscode-extension-host.ts
  • progress.txt
  • scripts/fix_any.py
  • scripts/fix_b15_types.py
  • scripts/fix_b15_types2.py
  • scripts/fix_b15_types3.py
  • scripts/fix_b15_types4.py
  • scripts/fix_b15_types5.py
  • scripts/fix_b15_types6.py
  • scripts/fix_b15_types7.py
  • scripts/fix_b15_types8.py
  • scripts/fix_mock_cast.py
  • scripts/fix_mock_cast2.py
  • scripts/fix_mock_cast3.py
  • scripts/insert_b04_tests.py
  • scripts/resolve_b05_conflicts.py
  • scripts/resolve_b05_test_conflicts.py
  • src/__tests__/task-run-dispatch.spec.ts
  • src/api/providers/__tests__/moonshot.spec.ts
  • src/api/providers/__tests__/openai-usage-tracking.spec.ts
  • src/api/providers/openai-codex.ts
  • src/api/providers/openai.ts
  • src/api/transform/__tests__/vscode-lm-format.spec.ts
  • src/core/task/Task.ts
  • src/core/task/__tests__/Task.dispose.test.ts
  • src/core/task/__tests__/Task.usage-stats.spec.ts
  • src/core/webview/ClineProvider.ts
  • src/services/stats/UsageAggregator.ts
  • src/services/stats/UsageEventStore.ts
  • src/services/stats/UsageRecorder.ts
  • src/services/stats/UsageStatsService.ts
  • src/services/stats/__tests__/UsageAggregator.spec.ts
  • src/services/stats/__tests__/UsageEventStore.spec.ts
  • src/services/stats/__tests__/UsageStatsService.spec.ts
  • src/services/stats/__tests__/costRecalculation.spec.ts
  • src/services/stats/costRecalculation.ts
  • src/services/stats/index.ts
  • src/shared/globalFileNames.ts
💤 Files with no reviewable changes (1)
  • progress.txt
🚧 Files skipped from review as they are similar to previous changes (23)
  • src/shared/globalFileNames.ts
  • packages/types/src/index.ts
  • packages/types/src/tests/usage-stats.spec.ts
  • packages/types/src/providers/qwen-code.ts
  • src/tests/task-run-dispatch.spec.ts
  • src/api/providers/openai-codex.ts
  • src/core/task/tests/Task.dispose.test.ts
  • src/core/webview/ClineProvider.ts
  • src/api/providers/tests/openai-usage-tracking.spec.ts
  • src/services/stats/UsageRecorder.ts
  • src/core/task/tests/Task.usage-stats.spec.ts
  • src/services/stats/tests/costRecalculation.spec.ts
  • packages/types/src/usage-stats.ts
  • src/api/providers/tests/moonshot.spec.ts
  • src/services/stats/costRecalculation.ts
  • src/api/providers/openai.ts
  • src/core/task/Task.ts
  • src/services/stats/tests/UsageStatsService.spec.ts
  • packages/types/src/vscode-extension-host.ts
  • src/services/stats/UsageStatsService.ts
  • src/services/stats/index.ts
  • src/api/transform/tests/vscode-lm-format.spec.ts
  • src/services/stats/UsageAggregator.ts

Comment on lines +45 to +52
**B05 test suite (4 files, 205 tests):**
- `ShellResolver.spec.ts` — all passed
- `ShellInvocationAdapter.spec.ts` — all passed
- `TerminalProfile.spec.ts` — all passed
- `shell.spec.ts` — all passed

**Merge verification test (1 file, 40 tests):**
- `executeCommandTool.spec.ts` — all passed (both B04's command_output ask policy tests AND B05's cwd parameter validation tests)

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🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Clarify the tested suite scope.

The verification section lists four B05 suites. The affected-file list also includes TerminalLifecycle.spec.ts and CommandScheduler.spec.ts, but the report does not state whether those B06 tests ran. State the tested scope explicitly before claiming complete verification.

🤖 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 `@docs/260801_0001_session_fork-pr-rebase-ci/002500_code-report.md` around
lines 45 - 52, Update the verification report to explicitly state whether
TerminalLifecycle.spec.ts and CommandScheduler.spec.ts were run as part of B06
verification. Clarify the tested suite scope before claiming complete
verification, distinguishing executed tests from affected files that were not
run.

Comment thread docs/260801_0001_session_fork-pr-rebase-ci/002500_code-report.md Outdated
Comment thread docs/260801_0001_session_fork-pr-rebase-ci/093300_code-report.md Outdated
Comment on lines +22 to +29
- **Edited** [`ClineProvider.ts`](src/core/webview/ClineProvider.ts:1): 5 surgical edits:
1. Added `TaskOrganizationStore` import from `../task-persistence`
2. Added `TaskOrganizationStateV1` + `createEmptyTaskOrganizationState` imports from `@roo-code/types`
3. Added `taskOrganizationStore` field + `taskOrganizationStoreInitialized` flag
4. Constructor: initialized store with `taskHistory` ref + `onChange` callback posting `taskOrganizationUpdated` to webview; added reconcile call in `TaskHistoryStore.onWrite`
5. Added `getTaskOrganizationStore()` getter method
6. Updated `getStateToPostToWebview()` to await store init and include `taskOrganization` state
7. Added `taskOrganizationStore.dispose()` in provider dispose

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🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Correct the surgical-edit count.

The report says there were 5 edits but lists 7 numbered edits. Change the count to 7, or regroup the list into 5 actual edits.

🤖 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 `@docs/260801_0001_session_fork-pr-rebase-ci/094700_code-report.md` around
lines 22 - 29, Update the surgical-edit count in the report to match the seven
numbered changes currently listed, or regroup those changes into exactly five
numbered edits while preserving their details.

- Total: **112 tests passed**

### 6. Push to Fork
Pushed `pr/b05a-strict-reasoning-v2` to `myk1yt` remote. The pre-push hook ran `turbo check-types` across all 14 packages (11 successful, 11 total). GitHub provided PR creation URL:

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🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Separate package and task counts.

The sentence reports 14 packages but 11 total tasks. If 14 is the workspace package count and 11 is the Turbo task count, label them separately. Do not present them as one count.

🤖 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 `@docs/260801_0001_session_fork-pr-rebase-ci/101100_code-report.md` at line 43,
Update the reported pre-push hook result in the session report to distinguish
the workspace package count from the Turbo task count: state 14 packages and 11
tasks separately, and avoid wording that combines them into a single count.

Comment on lines +409 to +423
it("should filter events by preset 'today'", () => {
const now = new Date()
const todayIso = now.toISOString()
const pastDate = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000).toISOString()

const events = [
makeEvent({ eventId: "evt-1", idempotencyKey: "idem-1", occurredAt: todayIso }),
makeEvent({ eventId: "evt-2", idempotencyKey: "idem-2", occurredAt: pastDate }),
]
const query = makeQuery({ preset: "today", groupBy: [] })

const result = aggregator.query(events, query)

expect(result.totals.events).toBe(1)
})

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🩺 Stability & Availability | 🟡 Minor | ⚡ Quick win

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
set -euo pipefail

echo "== locate files =="
fd -a 'UsageAggregator|UsageAggregator\.spec\.ts|stats' . | sed 's#^\./##' | head -100

echo "== outline test == "
ast-grep outline src/services/stats/__tests__/UsageAggregator.spec.ts --view compact || true

echo "== relevant lines 380-435 =="
sed -n '380,435p' src/services/stats/__tests__/UsageAggregator.spec.ts

echo "== find UsageAggregator implementation =="
rg -n "resolveTimeRange|class UsageAggregator|query\\(" src/services/stats -S

echo "== usage aggregator source candidates =="
fd -a . src/services/stats | sed 's#^\./##'

Repository: Zoo-Code-Org/Zoo-Code

Length of output: 9202


🏁 Script executed:

#!/bin/bash
set -euo pipefail

echo "== UsageAggregator query and resolveTimeRange =="
sed -n '65,175p' src/services/stats/UsageAggregator.ts

echo "== imports and helpers in spec =="
sed -n '1,120p' src/services/stats/__tests__/UsageAggregator.spec.ts

echo "== package test scripts and vitest availability =="
for f in package.json src/package.json; do
  if [ -f "$f" ]; then
    echo "-- $f --"
    jq '.scripts // {}' "$f"
  fi
done

node - <<'JS'
const fs = require('fs')
const src = fs.readFileSync('src/services/stats/UsageAggregator.ts','utf8')
for (const needle of ['new Date()', 'setStartOfMonth', 'setISODay']) {
  console.log(needle, src.includes(needle), src.split('\n').filter((line, i) => line.includes(needle)).map((line, i) => i+1+': '+line.trim()).join('\n'))
}
const spec = fs.readFileSync('src/services/stats/__tests__/UsageAggregator.spec.ts','utf8')
for (const needle of ['vi', 'useFakeTimers', 'setSystemTime', 'Date.now']) {
  console.log(needle, spec.includes(needle))
}
JS

echo "== deterministic probe for range construction across UTC day boundary =="
node - <<'JS'
const startOfUTCday = d => new Date(Date.UTC(d.getUTCFullYear(), d.getUTCMonth(), d.getUTCDate()))
const startOfUTCweek = d => {
  const day = (d.getUTCDay() + 6) % 7
  return new Date(Date.UTC(d.getUTCFullYear(), d.getUTCMonth(), d.getUTCDate() - day))
}
const presets = {
  today: { from: startOfUTCday, to: undefined },
  '7d': { from: d => new Date(d.getTime() - 7*24*60*60*1000), to: undefined }
}
const cases = [
  { name: '2024-12-31 23:59:59.999Z', now: Date.UTC(2024,11,31,23,59,59,999), evtUTC: Date.UTC(2024,11,31,23,59,59,999) },
  { name: '2025-01-01 00:00:00.000Z', now: Date.UTC(2025,0,1,0,0,0,0), evtUTC: Date.UTC(2025,0,1,0,0,0,0) },
  { name: '2025-01-01 00:00:00.000Z with evt one ms earlier', now: Date.UTC(2025,0,1,0,0,0,0), evtUTC: Date.UTC(2024,11,31,23,59,59,999) },
  { name: '2025-01-05 01:00:00.000Z', now: Date.UTC(2025,0,5,1,0,0,0), evtUTC: Date.UTC(2025,0,1,0,0,0,0) },
  { name: '2025-01-05 01:00:00.000Z', now: Date.UTC(2025,0,5,1,0,0,0), evtUTC: Date.UTC(2024,11,29,0,0,0,0) },
  { name: '2025-01-05 01:00:00.000Z', now: Date.UTC(2025,0,5,1,0,0,0), evtUTC: Date.UTC(2024,11,28,23,59,59,999) }
]
for (const { name, now, evtUTC } of cases) {
  for (const [name2, range] of Object.entries(presets)) {
    const out = range.from(evtUTC) <= now
    console.log(name2, name, 'event-epoch <= now-epoch:', evtUTC, now, out)
  }
}
JS

Repository: Zoo-Code-Org/Zoo-Code

Length of output: 10716


🏁 Script executed:

#!/bin/bash
set -euo pipefail

echo "== remaining spec imports and relevant tests =="
sed -n '1,42p' src/services/stats/__tests__/UsageAggregator.spec.ts
sed -n '640,710p' src/services/stats/__tests__/UsageAggregator.spec.ts

echo "== deterministic probe: Asia/Seoul day boundaries around UTC midnight =="
node - <<'JS'
function startOfDay(tzDate, tz) {
  const d = new Date(tzDate)
  d.setHours(0,0,0,0)
  return d
}
function inTodayPresets(now) {
  const tzNow = new Date(now.toLocaleString("en-US", {timeZone: "Asia/Seoul"}))
  const from = startOfDay(tzNow, "Asia/Seoul")
  const to = new Date(from)
  to.setDate(to.getDate() + 1)
  return {from, to}
}
const cases = [
  ["2024-12-31T23:59:59.999Z"],
  ["2025-01-01T00:00:00.000Z"],
  ["2025-01-01T00:00:00.001Z"],
  ["2025-01-01T14:59:59.999Z"],
  ["2025-01-01T15:00:00.000Z"],
  ["2025-07-07T15:59:59.999Z"],
  ["2025-07-07T16:00:00.000Z"],
]
for (const [iso] of cases) {
  const now = new Date(iso)
  const eventOneSecondEarlier = new Date(now.getTime() - 1).toISOString()
  const range = inTodayPresets(now)
  console.log(JSON.stringify({ iso, event: eventOneSecondEarlier, from: range.from.toISOString(), to: range.to.toISOString(), inside: range.from.getTime() <= new Date(eventOneSecondEarlier).getTime() && new Date(eventOneSecondEarlier).getTime() < range.to.getTime() }))
}
JS

Repository: Zoo-Code-Org/Zoo-Code

Length of output: 5391


Make the today preset test deterministic.

todayIso is created with the real system clock before UsageAggregator.query() computes its own new Date() range in Asia/Seoul. If the timezone crosses a day boundary between these calls, evt-1 falls outside the selected day and the test flakes. Use fake time for event creation and aggregation, and restore real timers in finally.

🤖 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 `@src/services/stats/__tests__/UsageAggregator.spec.ts` around lines 409 - 423,
Update the “should filter events by preset 'today'” test to use a fixed fake
clock for both event timestamp creation and aggregator.query execution,
preventing timezone-boundary flakiness. Ensure real timers are restored in a
finally block after the assertions.

Source: Coding guidelines

Comment on lines +640 to +658
it("should group events by ISO week bucket", () => {
const events = [
makeEvent({ eventId: "evt-1", idempotencyKey: "idem-1", occurredAt: "2026-07-13T10:00:00.000Z" }),
makeEvent({ eventId: "evt-2", idempotencyKey: "idem-2", occurredAt: "2026-07-15T10:00:00.000Z" }),
makeEvent({ eventId: "evt-3", idempotencyKey: "idem-3", occurredAt: "2026-07-20T10:00:00.000Z" }),
]
const query = makeQuery({ groupBy: ["week"] })

const result = aggregator.query(events, query)

// 2026-07-13 KST = 2026-07-13 19:00 → ISO week 28
// 2026-07-15 KST = 2026-07-15 19:00 → ISO week 29
// 2026-07-20 KST = 2026-07-20 19:00 → ISO week 29
expect(result.buckets.length).toBeGreaterThanOrEqual(1)
const weekKeys = result.buckets.map((b) => b.key.week)
weekKeys.forEach((key) => {
expect(key).toMatch(/^\d{4}-W\d{2}$/)
})
})

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🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Assert the ISO-week buckets.

July 13 and July 15, 2026 are both 2026-W29. July 20, 2026 is 2026-W30. The current format-only assertion passes if all events merge into one bucket or if the aggregator returns incorrect week values.

Proposed fix
-			expect(result.buckets.length).toBeGreaterThanOrEqual(1)
-			const weekKeys = result.buckets.map((b) => b.key.week)
-			weekKeys.forEach((key) => {
-				expect(key).toMatch(/^\d{4}-W\d{2}$/)
-			})
+			expect(result.buckets).toHaveLength(2)
+			expect(result.buckets.map((b) => b.key.week).sort()).toEqual(["2026-W29", "2026-W30"])
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
it("should group events by ISO week bucket", () => {
const events = [
makeEvent({ eventId: "evt-1", idempotencyKey: "idem-1", occurredAt: "2026-07-13T10:00:00.000Z" }),
makeEvent({ eventId: "evt-2", idempotencyKey: "idem-2", occurredAt: "2026-07-15T10:00:00.000Z" }),
makeEvent({ eventId: "evt-3", idempotencyKey: "idem-3", occurredAt: "2026-07-20T10:00:00.000Z" }),
]
const query = makeQuery({ groupBy: ["week"] })
const result = aggregator.query(events, query)
// 2026-07-13 KST = 2026-07-13 19:00 → ISO week 28
// 2026-07-15 KST = 2026-07-15 19:00 → ISO week 29
// 2026-07-20 KST = 2026-07-20 19:00 → ISO week 29
expect(result.buckets.length).toBeGreaterThanOrEqual(1)
const weekKeys = result.buckets.map((b) => b.key.week)
weekKeys.forEach((key) => {
expect(key).toMatch(/^\d{4}-W\d{2}$/)
})
})
it("should group events by ISO week bucket", () => {
const events = [
makeEvent({ eventId: "evt-1", idempotencyKey: "idem-1", occurredAt: "2026-07-13T10:00:00.000Z" }),
makeEvent({ eventId: "evt-2", idempotencyKey: "idem-2", occurredAt: "2026-07-15T10:00:00.000Z" }),
makeEvent({ eventId: "evt-3", idempotencyKey: "idem-3", occurredAt: "2026-07-20T10:00:00.000Z" }),
]
const query = makeQuery({ groupBy: ["week"] })
const result = aggregator.query(events, query)
// 2026-07-13 KST = 2026-07-13 19:00 → ISO week 28
// 2026-07-15 KST = 2026-07-15 19:00 → ISO week 29
// 2026-07-20 KST = 2026-07-20 19:00 → ISO week 29
expect(result.buckets).toHaveLength(2)
expect(result.buckets.map((b) => b.key.week).sort()).toEqual(["2026-W29", "2026-W30"])
})
🤖 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 `@src/services/stats/__tests__/UsageAggregator.spec.ts` around lines 640 - 658,
Strengthen the assertions in the “should group events by ISO week bucket” test
around aggregator.query so the returned bucket keys are exactly 2026-W29 and
2026-W30, with the expected event grouping/counts for each week. Replace the
format-only weekKeys check while preserving the existing ISO-week scenario and
ordering-independent validation.

Comment on lines +276 to +280
describe("error handling", () => {
it("should throw StatsStoreError with correct code on cap reached", async () => {
// 이 테스트는 cap을 강제로 설정하기 어려우므로, isCapped() 메서드 동작만 확인
expect(store.isCapped()).toBe(false)
})

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📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

This test does not verify what its name states.

The name says "should throw StatsStoreError with correct code on cap reached". The body only asserts isCapped() === false on a fresh store. It never reaches the cap and never asserts a throw. StatsStoreError, imported at line 9, is not used anywhere in this file. The STATS_STORE/append/003 path therefore has no coverage while appearing covered.

Make the cap injectable, or export the threshold so a test can force the state, then assert the thrown code.

💚 Proposed fix to assert the documented behavior
-		it("should throw StatsStoreError with correct code on cap reached", async () => {
-			// 이 테스트는 cap을 강제로 설정하기 어려우므로, isCapped() 메서드 동작만 확인
-			expect(store.isCapped()).toBe(false)
-		})
+		it("should report not capped for a fresh store", () => {
+			expect(store.isCapped()).toBe(false)
+		})
+
+		it("should throw STATS_STORE/append/003 once the hard cap is reached", async () => {
+			// `capped` is private; force the state to cover the guard in appendInternal.
+			;(store as unknown as { capped: boolean }).capped = true
+
+			await expect(store.append(makeEvent())).rejects.toBeInstanceOf(StatsStoreError)
+			await expect(store.append(makeEvent())).rejects.toMatchObject({
+				code: "STATS_STORE/append/003",
+			})
+		})

As per path instructions: "Add focused tests for UI binding and save behavior, persistence or normalization, and the value returned by getStateToPostToWebview(); cover both true and false/unset defaulting cases."

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
describe("error handling", () => {
it("should throw StatsStoreError with correct code on cap reached", async () => {
// 이 테스트는 cap을 강제로 설정하기 어려우므로, isCapped() 메서드 동작만 확인
expect(store.isCapped()).toBe(false)
})
describe("error handling", () => {
it("should report not capped for a fresh store", () => {
expect(store.isCapped()).toBe(false)
})
it("should throw STATS_STORE/append/003 once the hard cap is reached", async () => {
// `capped` is private; force the state to cover the guard in appendInternal.
;(store as unknown as { capped: boolean }).capped = true
await expect(store.append(makeEvent())).rejects.toBeInstanceOf(StatsStoreError)
await expect(store.append(makeEvent())).rejects.toMatchObject({
code: "STATS_STORE/append/003",
})
})
🤖 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 `@src/services/stats/__tests__/UsageEventStore.spec.ts` around lines 276 - 280,
Update the cap-reached test around UsageEventStore so it actually reaches the
configured cap, using an injectable or exported threshold, then invokes the
append path and asserts that it throws StatsStoreError with the expected
STATS_STORE/append/003 code. Remove the placeholder isCapped() assertion and
ensure both the true cap state and documented error behavior are covered.

Source: Path instructions

Comment on lines +155 to +186
async initialize(): Promise<void> {
if (this.initialized) {
return
}

try {
await fs.mkdir(this.statsDir, { recursive: true })
await fs.mkdir(this.quarantineDir, { recursive: true })
} catch (err) {
throw new StatsStoreError(
"STATS_STORE/append/001",
`Failed to create stats directory: ${this.statsDir}`,
err,
)
}

// manifest 로드 또는 생성
const manifest = await this.loadOrCreateManifest()

// idempotency set 복원: 현재 generation의 모든 segment에서 scan
try {
await this.rebuildIdempotencySet(manifest)
} catch (err) {
// scan 실패는 치명적이지 않음: dedupe가 느슨해질 뿐
console.warn(`[UsageEventStore] idempotency scan failed, continuing with empty set:`, err)
}

// hard cap 확인
this.capped = await this.checkTotalSize()

this.initialized = true
}

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🩺 Stability & Availability | 🟠 Major | ⚡ Quick win

initialize is not concurrency-safe; overlapping calls can drop idempotency keys.

this.initialized is set at line 185, after the awaits at lines 161-183. ensureInitialized is called from readAll, clear, getManifest, and appendInternal, and only the append path is serialized by the queue. If two of these run before the first initialize resolves, both observe initialized === false and both execute initialize.

A second rebuildIdempotencySet then clears the set at line 584 and rescans. Any key added by a concurrent append at line 474 during that window is lost, so a later duplicate event is accepted as new.

Memoize the in-flight promise so all callers await the same initialization.

🛡️ Proposed fix to memoize initialization
 	/** 초기화 완료 여부 */
 	private initialized = false
+
+	/** 진행 중인 초기화 promise */
+	private initPromise: Promise<void> | undefined
 	async initialize(): Promise<void> {
 		if (this.initialized) {
 			return
 		}
+		if (this.initPromise) {
+			return this.initPromise
+		}
+		this.initPromise = this.initializeInternal().finally(() => {
+			this.initPromise = undefined
+		})
+		return this.initPromise
+	}
 
+	private async initializeInternal(): Promise<void> {
 		try {
 			await fs.mkdir(this.statsDir, { recursive: true })
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
async initialize(): Promise<void> {
if (this.initialized) {
return
}
try {
await fs.mkdir(this.statsDir, { recursive: true })
await fs.mkdir(this.quarantineDir, { recursive: true })
} catch (err) {
throw new StatsStoreError(
"STATS_STORE/append/001",
`Failed to create stats directory: ${this.statsDir}`,
err,
)
}
// manifest 로드 또는 생성
const manifest = await this.loadOrCreateManifest()
// idempotency set 복원: 현재 generation의 모든 segment에서 scan
try {
await this.rebuildIdempotencySet(manifest)
} catch (err) {
// scan 실패는 치명적이지 않음: dedupe가 느슨해질 뿐
console.warn(`[UsageEventStore] idempotency scan failed, continuing with empty set:`, err)
}
// hard cap 확인
this.capped = await this.checkTotalSize()
this.initialized = true
}
/** 초기화 완료 여부 */
private initialized = false
/** 진행 중인 초기화 promise */
private initPromise: Promise<void> | undefined
async initialize(): Promise<void> {
if (this.initialized) {
return
}
if (this.initPromise) {
return this.initPromise
}
this.initPromise = this.initializeInternal().finally(() => {
this.initPromise = undefined
})
return this.initPromise
}
private async initializeInternal(): Promise<void> {
try {
await fs.mkdir(this.statsDir, { recursive: true })
await fs.mkdir(this.quarantineDir, { recursive: true })
} catch (err) {
throw new StatsStoreError(
"STATS_STORE/append/001",
`Failed to create stats directory: ${this.statsDir}`,
err,
)
}
// manifest 로드 또는 생성
const manifest = await this.loadOrCreateManifest()
// idempotency set 복원: 현재 generation의 모든 segment에서 scan
try {
await this.rebuildIdempotencySet(manifest)
} catch (err) {
// scan 실패는 치명적이지 않음: dedupe가 느슨해질 뿐
console.warn(`[UsageEventStore] idempotency scan failed, continuing with empty set:`, err)
}
// hard cap 확인
this.capped = await this.checkTotalSize()
this.initialized = true
}
🤖 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 `@src/services/stats/UsageEventStore.ts` around lines 155 - 186, Make
UsageEventStore.initialize concurrency-safe by memoizing its in-flight
initialization promise. Ensure concurrent callers reuse and await the same
promise, while preserving the existing initialized fast path and setting
initialization state only after the full setup completes; clear the memoized
promise on failure so later calls can retry.

Comment on lines +309 to +322
async clear(): Promise<void> {
await this.ensureInitialized()

let releaseLock: (() => Promise<void>) = async () => {}

try {
releaseLock = await this.acquireManifestLock()
} catch (err) {
throw new StatsStoreError(
"STATS_STORE/clear/001",
"Failed to acquire manifest lock for clear",
err,
)
}

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🩺 Stability & Availability | 🟠 Major | ⚡ Quick win

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
# Verify how clear() and append() are invoked, and whether callers can overlap them.
set -euo pipefail

fd -e ts . src/services/stats --exclude '__tests__' --exec rg -n -C4 '\.clear\(\)|\.append\(|this\.queue'
rg -n -C4 'usageStatsService|clearUsageStats|\.clear\(\)' src/core --type=ts

Repository: Zoo-Code-Org/Zoo-Code

Length of output: 1968


🏁 Script executed:

#!/bin/bash
set -euo pipefail

echo "== Outline UsageEventStore.ts =="
ast-grep outline src/services/stats/UsageEventStore.ts --view expanded | sed -n '1,220p'

echo "== Relevant UsageEventStore.ts sections =="
sed -n '120,230p' src/services/stats/UsageEventStore.ts
sed -n '250,385p' src/services/stats/UsageEventStore.ts

echo "== Storage service consumers around append/clear =="
rg -n -C5 'UsageStatsService|clearUsageStats|restoreUsageEventsFromHistory|\.store\.clear\(\)|\.store\.append\(' src/services src/core --type=ts | sed -n '1,260p'

Repository: Zoo-Code-Org/Zoo-Code

Length of output: 23997


🏁 Script executed:

#!/bin/bash
set -euo pipefail

echo "== acquireManifestLock implementation =="
sed -n '553,578p' src/services/stats/UsageEventStore.ts

echo "== lockfile imports and retry configuration =="
rg -n -C3 'proper-lockfile|lock.*wait|sleep|sleepFor|acquireManifestLock|releaseLock' src/services/stats/UsageEventStore.ts

echo "== append/internal write file operations =="
sed -n '384,525p' src/services/stats/UsageEventStore.ts

Repository: Zoo-Code-Org/Zoo-Code

Length of output: 6433


Route clear through the process queue to avoid self-contention on the manifest lock.

append serializes through this.queue, but clear acquires manifest.json.lock independently. Same-process append and clear can contend, causing STATS_STORE/append/002 or STATS_STORE/clear/001 after lock retries even though the operations do not conflict across processes. Run clear through the same this.queue; extract the queue wrapper from append and reuse it.

🤖 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 `@src/services/stats/UsageEventStore.ts` around lines 309 - 322, The clear
method currently acquires the manifest lock outside the process queue, allowing
same-process append and clear operations to contend. Extract append’s this.queue
wrapper into a reusable helper, then route clear through that helper while
preserving its existing initialization, lock handling, and StatsStoreError
behavior.

@github-actions github-actions Bot added the awaiting-review PR changes are ready and waiting for maintainer re-review label Aug 6, 2026
@myk1yt
myk1yt force-pushed the pr/b15-usage-capture-v2 branch from 0e51311 to 0b02cbe Compare August 7, 2026 09:19
@myk1yt myk1yt closed this Aug 7, 2026
@myk1yt
myk1yt deleted the pr/b15-usage-capture-v2 branch August 7, 2026 13:06
@myk1yt
myk1yt restored the pr/b15-usage-capture-v2 branch August 7, 2026 13:32
@myk1yt myk1yt reopened this Aug 7, 2026
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