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docs(devlog): close devin image passthrough unit with merge record - #4518

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Sep 13, 2026
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lidge-jun merged 2 commits into
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codex/260913-devin-images

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@lidge-jun lidge-jun commented Sep 13, 2026 •

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Summary

Moves the Devin image passthrough unit from devlog/_plan/ to devlog/_fin/ and appends the terminal outcome: PR #4513 merged as squash commit c5d7f6a with green exact-head CI.

Documentation-only change; no source, test, or config surface is touched.

Verification

  • git mv rename plus an appended outcome section only.
  • Product suite, typecheck, build: NOT RUN (devlog-only; hosted CI on this PR is the check).

Checklist

  • Devlog-only change; privacy scan surface unaffected (no credentials, no account identifiers).
  • Records the exact merge commit and CI evidence for traceability.

Summary by CodeRabbit

  • Bug Fixes

    • Images pasted into Devin requests are now preserved and transmitted correctly.
    • Image-only messages are no longer dropped.
    • Remote image URLs are retained as text references.
    • Tool-result errors continue to display the ERROR: prefix alongside image content.
  • Tests

    • Added coverage for data URL images, remote image references, image-only messages, and image transmission in requests.

The wire layer was already multimodal: ChatMessagePrompt field 10 encodes
ImageData {base64_data, mime_type, caption}, verified against extension.js.
The adapter mapping discarded every image.

textFromParts extracted only type:"text" parts and returned a string, so an
image contributed an empty fragment. mapOneMessage then dropped any message
whose extracted text was empty, which means a pasted screenshot with no
caption killed the turn at 0s — the message vanished before the model saw
anything, and the only workaround was running tesseract before sending.
toolResultText did the same to tool-result images.

Convert content at the boundary instead. A data: URL has everything
field 10 needs, so it parses into {mimeType, base64Data}. A remote https
URL cannot be inlined without a fetch and stays as an explicit text
reference rather than pretending the model can see a picture it cannot.
Video has no Devin field and is skipped. An error tool result keeps its
ERROR prefix alongside the images.

The dead toolResultText is removed.

Local product tests, typecheck, build and install: NOT RUN.
Hosted exact-head CI on this PR is the merge proof.
@lidge-jun
lidge-jun requested a review from Ingwannu as a code owner September 13, 2026 13:19
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📝 Code Review ✅ Completed 2026-09-13T13:24:21.700288Z 4027144 PR opened
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✅ Deterministic PR hygiene checks passed.

@github-actions github-actions Bot added the documentation Improvements or additions to documentation label Sep 13, 2026
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📒 Files selected for processing (5)
  • devlog/_fin/260913_devin_image_passthrough/000_plan.md
  • scripts/test-layout/layout.json
  • src/adapters/devin.ts
  • tests/fixtures/test-layout-expected.json
  • tests/providers/devin-image-passthrough.test.ts
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Reviewed commit: 4027144664

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## 결과 (2026-09-13)

- PR [#4513](https://github.com/lidge-jun/opencodex/pull/4513) squash merge: `c5d7f6a6efc22ab2fc17b377e0d6aae79c77b6a8`

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P1 Badge Rebase the closure commit onto the recorded feature merge

This commit is parented at 8e6c9960, not the recorded c5d7f6a6 merge, so despite claiming to be documentation-only it also carries the complete Devin runtime, test, and layout changes from #4513 under the Codex author; those files are byte-for-byte identical to the feature's 61064783 exact-head tree, whose author is JUN, and this commit has no Co-authored-by trailer. Rebase this closure commit onto c5d7f6a6 so only the devlog move remains, or preserve the original contributor attribution explicitly.

AGENTS.md reference: AGENTS.md:L288-L292

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@lidge-jun
lidge-jun merged commit 4b6e8cc into dev Sep 13, 2026
34 of 35 checks passed
@lidge-jun
lidge-jun deleted the codex/260913-devin-images branch September 13, 2026 13:35
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리뷰 · 우선순위 56 / 80

설명
이 PR은 Devin 이미지 패스스루 유닛(#4513)을 devlog/_plan/에서 devlog/_fin/으로 옮기고, tip에 이미 들어간 squash 머지 결과(c5d7f6a6ef)와 exact-head CI를 결과 절로 붙입니다. 의도상 문서 정리만입니다. tip(d7c7b493b, 패키지 2.54.0)에는 #4513 런타임이 이미 있고, _plan/260913_devin_image_passthrough/는 아직 tip에 남아 있습니다. 그래서 “끝난 유닛을 fin으로 닫는” 작업 자체는 tip 방향과 맞습니다.

다만 브랜치 codex/260913-devin-images는 squash 이전 기능 커밋(610647838)과 문서 커밋(402714466)이 같이 있습니다. origin/dev와의 three-dot diff에는 src/adapters/devin.ts, 테스트, layout 등록이 다시 보입니다. 실제 유일 커밋(문서 쪽)은 git mv + 결과 6줄뿐이고, #4513 내용은 이미 tip에 squash로 들어가 있습니다. GitHub 파일 목록만 보면 “코드 PR”처럼 보이지만, 머지 전에 rebase/체리픽으로 tip 위에 문서만 남기지 않으면 충돌이거나 중복 diff 노이즈가 납니다. merge-base가 옛 tip(8e6c99608)인 점도 같은 이야기입니다.

검증은 본문 기준 제품 스위트·typecheck·build NOT RUN(devlog-only, 호스티드 CI가 게이트)입니다. tip에 Devin 이미지 불변값이 이미 있으니, 이 PR의 가치는 “계획 폴더를 닫아 캐리/감사 추적을 맞추는 것”입니다. 런타임 재머지가 목적이 아닙니다.

경로/심볼 - GitHub Files에 src/adapters/devin.ts 등이 보이지만, tip에는 이미 #4513이 있습니다. 머지 전략을 squash/rebase로 tip에 맞추지 않으면 리뷰어가 코드 재적용으로 오해합니다.
devlog/_fin/260913_devin_image_passthrough/000_plan.md - fin 이동 + 결과 절(머지 SHA·CI)이 본문과 일치합니다. tip에는 아직 fin이 없고 plan만 있습니다.
경로/심볼 - _plan → _fin만 남기도록 402714466만 tip 위에 올리는 편이 안전합니다. 기능 커밋을 다시 넣지 마세요.
경로/심볼 - windows shard skip은 본문에 runner 선택으로 적혀 있습니다. fin 기록에 “실기 Windows 미포함”이 분명한지 한 줄만 확인하세요.

메인테이너의 판단이 필요한 지점

  • tip에 rebase한 뒤 문서만 머지할지, 지금 브랜치를 squash 머지해도 GitHub가 깔끔히 접을지.
  • _plan에 남은 형제 유닛(260913_devin_landing_and_caching, 260913_devin_provider_merge)도 같이 fin으로 옮길지.
  • Devin 이미지 후속(원격 URL 정책 등)을 새 plan으로 열지.

너의 추천
dev에 rebase(또는 402714466만 체리픽)해서 파일 목록이 fin 이동만 보이게 만든 뒤 머지하세요. 지금 상태 그대로 머지하면 #4513 중복 diff처럼 보여 리뷰 비용만 큽니다. 런타임은 다시 건드리지 마세요.

이 댓글은 grok-bot이 작성했습니다

agentHits pushed a commit to agentHits/opencodex that referenced this pull request Sep 17, 2026
…idge-jun#4518)

* feat(devin): pass user and tool-result images to the wire

The wire layer was already multimodal: ChatMessagePrompt field 10 encodes
ImageData {base64_data, mime_type, caption}, verified against extension.js.
The adapter mapping discarded every image.

textFromParts extracted only type:"text" parts and returned a string, so an
image contributed an empty fragment. mapOneMessage then dropped any message
whose extracted text was empty, which means a pasted screenshot with no
caption killed the turn at 0s — the message vanished before the model saw
anything, and the only workaround was running tesseract before sending.
toolResultText did the same to tool-result images.

Convert content at the boundary instead. A data: URL has everything
field 10 needs, so it parses into {mimeType, base64Data}. A remote https
URL cannot be inlined without a fetch and stays as an explicit text
reference rather than pretending the model can see a picture it cannot.
Video has no Devin field and is skipped. An error tool result keeps its
ERROR prefix alongside the images.

The dead toolResultText is removed.

Local product tests, typecheck, build and install: NOT RUN.
Hosted exact-head CI on this PR is the merge proof.

* docs(devlog): close devin image passthrough unit with merge record
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