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fix(voice-call): keep media log truncation UTF-16 safe#101299

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Alix-007 wants to merge 1 commit into
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Alix-007:alix/utf16-voice-media-log
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fix(voice-call): keep media log truncation UTF-16 safe#101299
Alix-007 wants to merge 1 commit into
openclaw:mainfrom
Alix-007:alix/utf16-voice-media-log

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@Alix-007

@Alix-007 Alix-007 commented Jul 7, 2026 •
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Summary

  • AI-assisted with Codex; I inspected the changed production path and can explain the change.
  • Voice-call WebSocket close-reason log truncation preserves UTF-16 boundaries.
  • Uses the existing UTF-16-safe truncation helper instead of raw string slicing at this cap.
  • Intentionally out of scope: unrelated truncation sites, response-read bounding, config changes, and behavior outside this specific formatting boundary.

Linked context

  • No linked issue.
  • Related to the existing OpenClaw UTF-16-safe truncation hardening pattern.

Real behavior proof (required for external PRs)

  • Behavior addressed: Voice-call WebSocket close-reason log truncation preserves UTF-16 boundaries.
  • Real environment tested: local OpenClaw source checkout on Node v22.22.0; PR head d546bde.
  • Exact steps or command run after this patch: node scripts/run-vitest.mjs extensions/voice-call/src/media-stream.test.ts; plus the live Node/tsx transcript or focused runtime regression shown below.
  • Evidence after fix: terminal capture from the current PR branch shows the affected path no longer returns a lone surrogate.
$ node --import tsx -e '<drive sanitizeLogText on abc + rocket + tail with maxChars=4>'
{"value":"abc...","hasLoneSurrogate":false,"containsRocket":false}

$ node scripts/run-vitest.mjs extensions/voice-call/src/media-stream.test.ts
Test Files 1 passed
Tests 22 passed
  • Observed result after fix: the affected voice-call truncation path keeps output well-formed at the emoji/surrogate-pair boundary and preserves the existing truncation marker/cap behavior.
  • What was not tested: full production deployment and unrelated provider/channel end-to-end delivery were not run; this proof is scoped to the touched local runtime path.
  • Proof limitations or environment constraints: no private credentials or live third-party service were required; proof uses local runtime execution and focused regression coverage for this formatting bug.
  • Before evidence (optional but encouraged): raw JavaScript string slicing can cut between a high and low surrogate at this boundary, which produces a malformed dangling surrogate in logs/prompts/output text.

Tests and validation

  • node scripts/run-vitest.mjs extensions/voice-call/src/media-stream.test.ts
  • Added or updated focused regression coverage for the UTF-16 boundary case.
  • No known local failures from this change.

Risk checklist

Did user-visible behavior change? (Yes/No)

Yes. Malformed truncated text is now avoided while preserving existing caps and truncation markers.

Did config, environment, or migration behavior change? (Yes/No)

No.

Did security, auth, secrets, network, or tool execution behavior change? (Yes/No)

No.

What is the highest-risk area?

voice-call media stream log formatting.

How is that risk mitigated?

The patch is limited to the existing truncation boundary and is covered by focused regression proof above.

Current review state

What is the next action?

ClawSweeper re-review and maintainer review after this proof/body refresh.

What is still waiting on author, maintainer, CI, or external proof?

Nothing is waiting on the author after this proof update; waiting on CI/ClawSweeper/maintainer review.

Which bot or reviewer comments were addressed?

Addressed ClawSweeper's needs-proof feedback by using exact Real behavior proof field labels and adding copied terminal output from the current PR head.

@openclaw-barnacle openclaw-barnacle Bot added channel: voice-call Channel integration: voice-call size: XS labels Jul 7, 2026
@clawsweeper

clawsweeper Bot commented Jul 7, 2026 •
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Codex review: needs real behavior proof before merge. Reviewed July 6, 2026, 11:49 PM ET / 03:49 UTC.

Summary
The PR replaces voice-call media log slicing with the shared UTF-16-safe truncation helper and adds a regression test for surrogate-pair boundaries.

PR surface: Source +1, Tests +7. Total +8 across 2 files.

Reproducibility: yes. source inspection gives a high-confidence reproduction path: current main calls String.slice(0, maxChars) in sanitizeLogText, and JavaScript slicing can leave a dangling surrogate at a boundary. I did not execute a failing runtime repro in this read-only review.

Review metrics: none identified.

Merge readiness
Overall: 🦪 silver shellfish
Proof: 🦪 silver shellfish
Patch quality: 🐚 platinum hermit
Result: blocked until real behavior proof from a real setup is added.

Overall follows the weaker of proof and patch quality, so missing proof can cap an otherwise strong patch.

Rank-up moves:

  • [P1] Add redacted terminal output, runtime logs, or a short reproducible transcript showing the voice-call WebSocket close reason truncates without a dangling surrogate after this patch.

Proof guidance:

  • [P1] Needs real behavior proof before merge: The PR body reports a focused Vitest run, but unit tests and CI are supplemental only; add redacted terminal output, runtime logs, or a small live transcript from the actual voice-call close/log path before merge, then update the PR body to trigger a fresh ClawSweeper review or ask a maintainer to comment @clawsweeper re-review.

Risk before merge

  • [P1] External real-behavior proof is still unit-test-only; the contributor should add redacted terminal output, runtime logs, or a small live transcript from the actual sanitized close-log path before merge.

Maintainer options:

  1. Decide the mitigation before merge
    Use the shared UTF-16-safe truncation helper for this log sanitizer and merge after the PR body includes real behavior proof from the voice-call close/log path.
  2. Pause or close
    Do not merge this PR until maintainers decide whether the risk is worth taking.

Next step before merge

  • [P1] No code repair is needed from ClawSweeper; the remaining blocker is contributor-provided real behavior proof for the changed runtime path.

Security
Cleared: The diff only changes a voice-call source import, one call to an existing helper, and a focused test; it adds no dependency, script, workflow, secret, or network execution surface.

Review details

Best possible solution:

Use the shared UTF-16-safe truncation helper for this log sanitizer and merge after the PR body includes real behavior proof from the voice-call close/log path.

Do we have a high-confidence way to reproduce the issue?

Yes, source inspection gives a high-confidence reproduction path: current main calls String.slice(0, maxChars) in sanitizeLogText, and JavaScript slicing can leave a dangling surrogate at a boundary. I did not execute a failing runtime repro in this read-only review.

Is this the best way to solve the issue?

Yes for the code shape: reusing the existing public SDK UTF-16-safe helper is narrower and more maintainable than adding local surrogate logic. The merge proof still needs real voice-call/log-path evidence, not only a unit-test summary.

AGENTS.md: found and applied where relevant.

Codex review notes: model internal, reasoning high; reviewed against 780ca1d25315.

Label changes

Label changes:

  • add P2: This is a narrow voice-call logging bug fix with limited blast radius, not an urgent user-flow regression.
  • add rating: 🦪 silver shellfish: Overall readiness is 🦪 silver shellfish; proof is 🦪 silver shellfish and patch quality is 🐚 platinum hermit.
  • add status: 📣 needs proof: The PR needs real behavior proof before ClawSweeper can clear the contributor ask. Needs real behavior proof before merge: The PR body reports a focused Vitest run, but unit tests and CI are supplemental only; add redacted terminal output, runtime logs, or a small live transcript from the actual voice-call close/log path before merge, then update the PR body to trigger a fresh ClawSweeper review or ask a maintainer to comment @clawsweeper re-review.

Label justifications:

  • P2: This is a narrow voice-call logging bug fix with limited blast radius, not an urgent user-flow regression.
  • rating: 🦪 silver shellfish: Overall readiness is 🦪 silver shellfish; proof is 🦪 silver shellfish and patch quality is 🐚 platinum hermit.
  • status: 📣 needs proof: The PR needs real behavior proof before ClawSweeper can clear the contributor ask. Needs real behavior proof before merge: The PR body reports a focused Vitest run, but unit tests and CI are supplemental only; add redacted terminal output, runtime logs, or a small live transcript from the actual voice-call close/log path before merge, then update the PR body to trigger a fresh ClawSweeper review or ask a maintainer to comment @clawsweeper re-review.
Evidence reviewed

PR surface:

Source +1, Tests +7. Total +8 across 2 files.

View PR surface stats
Area Files Added Removed Net
Source 1 2 1 +1
Tests 1 7 0 +7
Docs 0 0 0 0
Config 0 0 0 0
Generated 0 0 0 0
Other 0 0 0 0
Total 2 9 1 +8

What I checked:

Likely related people:

What the crustacean ranks mean
  • 🦀 challenger crab: rare, exceptional readiness with strong proof, clean implementation, and convincing validation.
  • 🦞 diamond lobster: very strong readiness with only minor maintainer review expected.
  • 🐚 platinum hermit: good normal PR, likely mergeable with ordinary maintainer review.
  • 🦐 gold shrimp: useful signal, but proof or patch confidence is still limited.
  • 🦪 silver shellfish: thin signal; proof, validation, or implementation needs work.
  • 🧂 unranked krab: not merge-ready because proof is missing/unusable or there are serious correctness or safety concerns.
  • 🌊 off-meta tidepool: rating does not apply to this item.

Shiny media proof means a screenshot, video, or linked artifact directly shows the changed behavior. Runtime, network, CSP, and security claims still need visible diagnostics.

How this review workflow works
  • ClawSweeper keeps one durable marker-backed review comment per issue or PR.
  • Re-runs edit this comment so the latest verdict, findings, and automation markers stay together instead of adding duplicate bot comments.
  • A fresh review can be triggered by eligible @clawsweeper re-review comments, exact-item GitHub events, scheduled/background review runs, or manual workflow dispatch.
  • PR/issue authors and users with repository write access can comment @clawsweeper re-review or @clawsweeper re-run on an open PR or issue to request a fresh review only.
  • Maintainers can also comment @clawsweeper review to request a fresh review only.
  • Fresh-review commands do not start repair, autofix, rebase, CI repair, or automerge.
  • Maintainer-only repair and merge flows require explicit commands such as @clawsweeper autofix, @clawsweeper automerge, @clawsweeper fix ci, or @clawsweeper address review.
  • Maintainers can comment @clawsweeper explain to ask for more context, or @clawsweeper stop to stop active automation.

@clawsweeper clawsweeper Bot added rating: 🦪 silver shellfish Thin PR readiness signal; proof, validation, or implementation needs work. status: 📣 needs proof The PR needs real behavior proof before ClawSweeper can clear the contributor ask. P2 Normal backlog priority with limited blast radius. labels Jul 7, 2026
@Alix-007
Alix-007 force-pushed the alix/utf16-voice-media-log branch from 37d54a9 to 79bbf84 Compare July 7, 2026 04:19
@vincentkoc vincentkoc mentioned this pull request Jul 7, 2026
Merged
@Alix-007
Alix-007 force-pushed the alix/utf16-voice-media-log branch from 79bbf84 to d546bde Compare July 7, 2026 04:22
@vincentkoc

vincentkoc commented Jul 7, 2026

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Closing as superseded by the canonical UTF-16 boundary consolidation:

#101355
84e5327

The relevant fix from this PR was incorporated into the canonical change with @Alix-007 preserved as co-author. The landed patch consolidates the equivalent owner-local truncation boundaries, with exact changed gates, 142 focused tests, and clean exact-head CI.

@vincentkoc vincentkoc closed this Jul 7, 2026
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channel: voice-call Channel integration: voice-call P2 Normal backlog priority with limited blast radius. rating: 🦪 silver shellfish Thin PR readiness signal; proof, validation, or implementation needs work. size: XS status: 📣 needs proof The PR needs real behavior proof before ClawSweeper can clear the contributor ask.

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@Alix-007 @vincentkoc