fix(telemetry): remove redundant captureException calls that double-count errors by myk1yt · Pull Request #1702 · Zoo-Code-Org/Zoo-Code

myk1yt · 2026-09-19T22:39:49Z

Related GitHub Issue

Part of: #513 (Bugs 1 and 3 only; see Additional Notes)

Description

Removes three captureException calls that double-count one failure in PostHog. Each fired in addition to an existing capture or event for the same failure.

src/core/task/Task.ts and src/core/assistant-message/presentAssistantMessage.ts: the consecutive-mistake guards fired the named Consecutive Mistake Error event and a captureException for the same limit (issue Bug 1). The exception capture is removed, with the unused ConsecutiveMistakeError imports.
src/api/providers/openai-native.ts: handleStreamResponse captured the stream error and rethrew it to the createMessage catch, which captured the same failure again (issue Bug 3). The rethrow stays. One capture per stream failure remains.

The removed exceptions were the only events that carried the mistake reason, count and limit. To keep that data, captureConsecutiveMistakeError now sends reason, consecutiveMistakeCount and consecutiveMistakeLimit on the named event.

Guard	`reason`	Count	Limit
Task mistake limit (`Task.ts`)	`unknown`	`consecutiveMistakeCount`	`consecutiveMistakeLimit`
Tool repetition hard block (`presentAssistantMessage.ts`)	`tool_repetition`	`consecutiveMistakeLimit`	`consecutiveMistakeLimit`

Task guard reason: many paths increment consecutiveMistakeCount (no tool use, tool validation, tool execution) and none records its cause. The old no_tools_used label was therefore not reliable.
Tool repetition count: the repetition detector uses consecutiveMistakeLimit as its hard limit and blocks when its identical-call count reaches it. consecutiveMistakeCount is unrelated here and can be zero.

One audited site is intentionally not changed: src/api/providers/openrouter.ts handleStreamingError (issue Bug 4). The capture at openrouter.ts:203 is the only telemetry for mid-stream OpenRouter errors. The throw from createMessage (call at :407) has no enclosing capture, and completePrompt (call at :656) sits outside its try/catch. Removing the capture would remove all error telemetry there. It needs a change to the callers, not a deletion.

Expected telemetry change

$exception volume drops at release. In the last 30 days about 16% of $exception events (about 17.7k of 107.8k) carried a consecutive-mistake reason.
Two saved PostHog insights count all $exception events and will show a step down: "Weekly engineering reliability events" and "Weekly reopen and reliability ratios". This is the double count going away, not a regression.
In the same period the named event had about 1.9k events, against 17.7k reason-tagged exceptions. The cause of this gap is not known. It is not addressed here.

Test Procedure

packages/telemetry: new TelemetryService.consecutive-mistake.test.ts checks that the event sends reason, count and limit, and that no exception is captured.
openai-native.spec.ts: the stream-error test now asserts exactly one capture (toHaveBeenCalledTimes(1)).
presentAssistantMessage-tool-repetition.spec.ts: asserts the new event arguments while consecutiveMistakeCount is 0, and asserts captureException is not called on a hard block.
vitest run core/assistant-message core/task/__tests__/Task.spec.ts api/providers/__tests__/openai-native.spec.ts passes.
ESLint and tsc --noEmit are clean. eslint-suppressions.json is unchanged.
There is no Task-level test for the mistake-limit guard. It needs a heavy harness and is not part of this PR.

Pre-Submission Checklist

Issue Linked: This PR is linked to an approved GitHub Issue (see "Related GitHub Issue" above).
Scope: My changes are focused on the linked issue (one major feature/fix per PR).
Self-Review: I have performed a thorough self-review of my code.
Testing: New and/or updated tests have been added to cover my changes (if applicable).
Visual Snapshot (UI changes only): N/A, no UI changes.
Documentation Impact: No documentation updates are required.
Contribution Guidelines: I have read and agree to the Contributor Guidelines.

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N/A.

Videos (interaction / animation only)

N/A.

Documentation Updates

No documentation updates are required.

Additional Notes

Partial fix, by design:

Bug 4 (openrouter handleStreamingError): left as is. See Description for the call-site evidence.
Bug 2 (retry-amplification recapture across about 8 providers' catch and rethrow patterns): not attempted. It is a provider-wide refactor and needs its own PR.
Unused class: ConsecutiveMistakeError and its PostHog branch have no production constructor after this PR. They are public exports of @roo-code/types, so removal is left for a separate change.

Get in Touch

GitHub: @myk1yt. Please tag me here. I monitor notifications.

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[warning] 3789-3789: Mutation test advisory
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📝 Summary

Summary by CodeRabbit

Bug Fixes
- Improved reporting of streamed-response failures to avoid duplicate reports while preserving error handling.
- Consecutive-mistake events now include the mistake type, count, and limit.
- Reduced redundant exception reports for consecutive-mistake events.

📝 Summary

Walkthrough

The changes remove an inner exception capture from OpenAI stream error handling. Consecutive-mistake paths now report the reason, mistake count, and limit through named telemetry events, without capturing those control-flow signals as exceptions.

Changes

Telemetry capture cleanup

Layer / File(s)	Summary
Consecutive-mistake event capture `packages/telemetry/src/TelemetryService.ts`, `src/core/assistant-message/presentAssistantMessage.ts`, `src/core/task/Task.ts`, `packages/telemetry/src/__tests__/TelemetryService.consecutive-mistake.test.ts`, `src/core/assistant-message/__tests__/presentAssistantMessage-tool-repetition.spec.ts`	`captureConsecutiveMistakeError` now records the reason, mistake count, and limit. The no-tools and tool-repetition paths provide those values and no longer capture exceptions for these control-flow signals. Tests check event properties and the absence of exception captures.
Stream error propagation `src/api/providers/openai-native.ts`, `src/api/providers/__tests__/openai-native.spec.ts`	`handleStreamResponse` rethrows wrapped stream errors without capturing them. The test expects exactly one exception capture.

Priority: ⬆️ High

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Merge Risk: 🔵 Low · up to 9da3d

Fractional repetition limits can produce an inaccurate hard-block telemetry count. This is a bounded telemetry issue; the default integer setting behaves as expected.

Pre-merge checks | 7 | 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Regression Evidence		The Task mistake-limit telemetry change lacks focused coverage at the Task layer. `Task.ts:3783-3810` now emits `captureConsecutiveMistakeError(taskId, "unknown", consecutiveMistakeCount, consecutiveM…	Add a Task-level test that reaches `recursivelyMakeClineRequests` with `consecutiveMistakeCount >= consecutiveMistakeLimit`, then assert the named event receives the task ID, `unknown`, the current count, and the limit, and assert no `captu…

✅ Passed checks (7 passed)

Check name	Status	Explanation
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.
Security Boundaries		No changed path meets the security failure conditions. The diff removes duplicate exception telemetry in `openai-native.ts`, `Task.ts`, and `presentAssistantMessage.ts`; it does not add secret/PII col…
Persistence Integrity		No changed persistence path exists. The diff changes telemetry event arguments, removes duplicate exception telemetry, and updates tests. `TelemetryService.captureConsecutiveMistakeError` still delega…
Lifecycle Resource Cleanup		No changed lifecycle path can leak a resource or duplicate work. `handleStreamResponse` still releases its stream reader in `finally` (openai-native.ts:1139), and `createMessage` still clears `abortCo…
Title check		The title clearly identifies the telemetry fix and the removal of redundant captureException calls that caused double-counting.
Description check		The description includes the linked issue, implementation details, test procedure, checklist, expected telemetry impact, and explicit scope limitations. It also discloses the missing Task-level guard …

Full details: Regression Evidence

Explanation

The Task mistake-limit telemetry change lacks focused coverage at the Task layer. Task.ts:3783-3810 now emits captureConsecutiveMistakeError(taskId, "unknown", consecutiveMistakeCount, consecutiveMistakeLimit) and removes the captureException call, but no Task test invokes this guard or asserts these arguments and the absence of the exception capture. The new telemetry unit test covers only no_tools_used and tool_repetition, not the unknown reason used by this changed Task path. The assistant-message tool-repetition path and OpenAI stream path do have focused tests.

Resolution

Add a Task-level test that reaches recursivelyMakeClineRequests with consecutiveMistakeCount >= consecutiveMistakeLimit, then assert the named event receives the task ID, unknown, the current count, and the limit, and assert no captureException call occurs. Add unknown to the parameterized TelemetryService.captureConsecutiveMistakeError test.

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github-actions · 2026-09-19T22:40:00Z

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codecov · 2026-09-19T22:44:07Z

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…ount errors Issue Zoo-Code-Org#513 identified captureException sites where the same error is captured again downstream or where a named telemetry event already carries the signal: - Task.ts: captureException(new ConsecutiveMistakeError(...)) fired right after captureConsecutiveMistakeError(), routing a deliberate control-flow limit into error tracking as a duplicate. - presentAssistantMessage.ts: same redundant pairing for the tool_repetition guard. - openai-native.ts: handleStreamResponse captured stream-processing failures and rethrew, after which createMessage's catch captured the same failure again. The openrouter handleStreamingError capture was left in place: in current code its rethrown error is not captured anywhere downstream (createMessage has no enclosing catch for the stream loop and completePrompt invokes it outside its try/catch), so removing it would drop the only capture for mid-stream OpenRouter errors.

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Inline comments:
Review comments at @src/core/assistant-message/presentAssistantMessage.ts:
- Line 842: Update the "tool_repetition" event to report the repetition
detector’s count instead of cline.consecutiveMistakeCount, which may remain zero
when valid tool calls reach the hard block. If that field must retain its
existing meaning, add a separate repetition-count property to the event.

Review comments at @src/core/task/Task.ts:
- Line 3789: Update the mistake-limit guard in Task so it reports
"no_tools_used" only when the cause is known to be no tool usage; track the
increment cause or report "unknown" when it cannot be established, including
tool-validation failures in presentAssistantMessage.

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src/api/providers/__tests__/openai-native.spec.ts (1)

1569-1570: LGTM!

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myk1yt requested review from JamesRobert20, edelauna, hannesrudolph, navedmerchant and taltas as code owners September 19, 2026 22:39

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[BUG] PostHog telemetry: exception inflation from double-capture and control-flow misuse of captureException #513

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Merged via the queue into Zoo-Code-Org:main with commit adee4d2 Oct 12, 2026
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[Fix] PostHog captures one exception per API error #2330

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fix(telemetry): remove redundant captureException calls that double-count errors - #1702

fix(telemetry): remove redundant captureException calls that double-count errors#1702
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myk1yt commented Sep 19, 2026 •

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