<!-- event: create author: ticket-intake at: 2026-06-20T10:46:48Z -->

## 作成

LocalTicketBackend によって作成されました。

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<!-- event: intake_summary author: ticket-intake at: 2026-06-20T10:46:54Z -->

## Intake summary

ユーザー要望を調査 Ticket ではなく concrete implementation Ticket として作成した。調査済み結論に基づき、`WebFetch` が `application/pdf` を `pdf-extract` で page-delimited Markdown-ish text として返せるようにする。Poppler/Pdfium/subprocess/OCR/semantic Markdown 化は非ゴール。既存 WebFetch safety bounds と HTML/text behavior は維持する。

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<!-- event: state_changed author: ticket-intake at: 2026-06-20T10:46:54Z from: planning to: ready reason: implementation_ready field: state -->

## State changed

Intake 済み。Orchestrator は implementation routing として扱える。実装 side effect / worktree 作成 / coder 起動はここでは行っていない。

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<!-- event: state_changed author: workspace-panel at: 2026-06-20T12:06:29Z from: ready to: queued reason: queued field: state -->

## State changed

Ticket を `workspace-panel` が queued にしました。


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<!-- event: decision author: yoi-orchestrator at: 2026-06-20T12:08:15Z -->

## Decision

Routing decision: implementation_ready_parallel

Reason:
- Panel Queue により、この Ticket は Orchestrator routing 対象として明示許可された。
- User standing directive: blocker が無いものは並列実行する。現在の `00001KVJABS1A` は Profile scope review 中であり、WebFetch PDF 実装とは domain/file conflict がないため並列化できる。
- Ticket body は調査済みの PDF extraction 方針、`pdf-extract` 採用理由、binary path 分離、page-delimited Markdown-ish output、metadata、bounds、non-goals、validation を実装可能な粒度で定義している。
- 未解決 relation blocker はない。
- Orchestrator worktree は clean、matching branch/worktree はなし。
- Risk domain は security / dependency / public-api / output-bounds だが、Ticket は existing WebFetch network safety、`max_response_bytes` / `max_output_bytes`、unsupported binary rejection、no OCR/semantic Markdown/native dependency を明示している。bounded context check 後も implementation 前に必要な追加 human decision は見つからなかった。

Evidence checked:
- Ticket `00001KVJA7V2R` body / thread / relations / artifacts。
- `TicketRelationQuery(00001KVJA7V2R)`: no blockers。
- `TicketOrchestrationPlanQuery(00001KVJA7V2R)`: no previous plan records; accepted plan recorded now。
- Workspace state:
  - Orchestrator worktree clean at `36b9ed45`。
  - queued: `00001KVJA7V2R`, `00001KVJDJD02`。
  - inprogress: `00001KVJABS1A` review only。
  - no matching WebFetch PDF branch/worktree。

IntentPacket:

Intent:
- Extend `WebFetch` so `application/pdf` can be fetched and returned as bounded, page-delimited text suitable for LLM reading。
- Use `pdf_extract::extract_text_from_mem_by_pages()` and present output as Markdown-ish page sections, not semantic PDF-to-Markdown。

Binding decisions / invariants:
- Keep WebFetch as fetch/extraction tool; no summarization or research orchestration。
- PDF bytes must not go through the UTF-8 text / `reject_binary()` path。
- Preserve private/local host rejection, bounded redirects, Content-Length / `max_response_bytes`, `max_output_bytes`, embedded credential rejection, untrusted content warning。
- Initial supported MIME is `application/pdf` only; no extension sniffing or `application/octet-stream` PDF guessing。
- No Poppler/Pdfium/subprocess/native dependency/OCR/scanned-PDF support/table reconstruction/cache。
- Existing HTML/text/JSON/XML behavior and `html_extraction` metadata must not regress。
- New metadata should use `pdf_extraction` with method/pages/readable/diagnostic information。

Requirements / acceptance criteria:
- Valid PDF returns `## Page 1`, `## Page 2`, etc. page-delimited bounded text。
- `transformed_as` communicates `pdf_text_by_pages` or equivalent, not semantic Markdown。
- `output_truncated` is correct when PDF text exceeds `max_output_bytes`。
- Malformed/encrypted/textless PDFs do not panic; return diagnostic error or readable=false metadata。
- Non-PDF unsupported binary remains rejected。
- Focused WebFetch tests and relevant cargo/fmt/diff validation pass。

Next action:
- Record `queued -> inprogress` and commit Ticket records before creating implementation worktree and spawning Coder。

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<!-- event: state_changed author: yoi-orchestrator at: 2026-06-20T12:08:34Z from: queued to: inprogress reason: orchestrator_acceptance_parallel_webfetch_pdf field: state -->

## State changed

Ticket body/thread, relation metadata, Orchestrator worktree state, visible Pods, existing branch/worktree, and bounded WebFetch/PDF context were checked. There is no unresolved blocking dependency, no conflicting inprogress implementation, and no missing planning decision. Accepting this queued Ticket for parallel implementation before worktree/Pod side effects.

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<!-- event: implementation_report author: yoi-orchestrator at: 2026-06-20T12:09:50Z -->

## Implementation report

Implementation orchestration start:
- Acceptance records were committed on Orchestrator branch: `e752a720 ticket: accept webfetch pdf and intake gate`。
- Created implementation worktree `/home/hare/Projects/yoi/.worktree/00001KVJA7V2R-webfetch-pdf-text` on branch `impl/00001KVJA7V2R-webfetch-pdf-text` at `e752a720`。
- Spawned Coder Pod `yoi-coder-00001KVJA7V2R` with write scope limited to the implementation worktree and read-only root scope only for runtime workspace identity。
- Coder task explicitly forbids root/original workspace implementation, semantic PDF Markdown/OCR/native dependency scope creep, merge, Ticket close, and cleanup。

Next action:
- Wait for Coder implementation report, then inspect branch diff/validation evidence and route to Reviewer。

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<!-- event: implementation_report author: yoi-orchestrator at: 2026-06-20T12:24:02Z -->

## Implementation report

Coder implementation report received from `yoi-coder-00001KVJA7V2R`.

Implementation commit:
- `b1af95ad web: fetch pdf text by pages`

Changed areas reported:
- `crates/tools/src/web.rs`:
  - Added `application/pdf` handling for `WebFetch`。
  - PDF bytes bypass UTF-8 / `reject_binary()` text path。
  - Uses `pdf_extract::extract_text_from_mem_by_pages()` inside `tokio::task::spawn_blocking`。
  - Returns Markdown-ish page sections like `## Page 1`, `## Page 2`。
  - Adds `pdf_extraction` metadata with method/page/readability/diagnostic fields。
  - Keeps existing `html_extraction` semantics intact。
  - Preserves unsupported binary MIME rejection。
  - Added deterministic in-memory PDF test fixtures and tests for PDF page-delimited output, output truncation, malformed PDF diagnostic error, and unsupported binary MIME rejection。
- `crates/tools/Cargo.toml`: added `pdf-extract = "0.10.0"`。
- `Cargo.lock`: updated for `pdf-extract` and transitive dependencies。
- `package.nix`: updated `cargoHash` to `sha256-rvsjn4BBxd9vt4nytPgUh4l/OQCRpqHbUR4jHoH589U=`。

Coder validation reported as passing:
- `cargo fmt --check`
- `cargo test -p tools web`
- `cargo check -p tools`
- `git diff --check`
- `nix build .#yoi --no-link`

Dependency / package impact:
- New Rust dependency: `pdf-extract 0.10.0`。
- Nix vendor hash updated and `nix build .#yoi --no-link` passed。

Known risks / deferrals:
- Only `application/pdf` is supported; no extension sniffing or `application/octet-stream` PDF guessing。
- No OCR, scanned-PDF support, table reconstruction, cache, subprocess, Poppler, or Pdfium integration。
- Malformed PDFs return diagnostic extraction error; textless PDFs are represented with `readable=false` metadata when extraction succeeds but no text is found。

Orchestrator evidence checked before review dispatch:
- Implementation worktree is clean。
- HEAD is `b1af95ad`。
- Diff from acceptance `e752a720..HEAD` is one implementation commit touching 4 files, about 552 insertions / 23 deletions。
- `git diff --check e752a720..HEAD` produced no diagnostics。

Next action:
- Dispatch Reviewer for r1 review against Ticket requirements, with focus on WebFetch network/binary safety preservation, PDF extraction bounds/metadata, dependency/Nix impact, malformed/textless behavior, unsupported binary rejection, and HTML/text regression safety。

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<!-- event: plan author: yoi-orchestrator at: 2026-06-20T12:24:42Z -->

## Plan

Review dispatch:
- Spawned Reviewer Pod `yoi-reviewer-00001KVJA7V2R-r1` against implementation branch `impl/00001KVJA7V2R-webfetch-pdf-text`。
- Review target commit: `b1af95ad web: fetch pdf text by pages`。
- Review baseline: `e752a720`。
- Reviewer task focuses on WebFetch network safety preservation, PDF binary path separation, response/output bounds, `pdf_text_by_pages` metadata accuracy, malformed/textless behavior, unsupported binary rejection, existing HTML/text regression safety, dependency/package impact, and Nix validation。
- Reviewer is instructed not to edit source, commit, merge, close the Ticket, or use TicketReview directly; it will report verdict/evidence back to Orchestrator。

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<!-- event: review author: yoi-reviewer-00001KVJA7V2R-r1 at: 2026-06-20T12:28:18Z status: approve -->

## Review: approve

Verdict: `approve`

確認範囲:
- Ticket contract / Orchestrator IntentPacket。
- Implementation diff: `e752a720..b1af95ad`。
- 主な対象:
  - `crates/tools/src/web.rs`
  - `crates/tools/Cargo.toml`
  - `Cargo.lock`
  - `package.nix`

Approval evidence:
- WebFetch safety pipeline は PDF rendering 前にも共有されている。
  - URL validation。
  - Redirect validation。
  - Content-Length rejection。
  - Bounded body read。
- PDF classification は exact `application/pdf` のみで、extension sniffing や `application/octet-stream` guessing は追加されていない。
- PDF path は `reject_binary()` / UTF-8 text decoding を bypass し、`pdf_extract::extract_text_from_mem_by_pages()` を `spawn_blocking` 内で使っている。
- Output は `## Page N` 形式の page-delimited text。
- `transformed_as` / `pdf_extraction.method` は `pdf_text_by_pages` を使い、semantic Markdown fidelity は主張していない。
- PDF rendering 後も `max_output_bytes` truncation が適用されている。
- Existing HTML extraction metadata は維持され、PDF result は `html_extraction = null` / `pdf_extraction` populated になる。
- `pdf-extract` dependency inspection では Poppler/Pdfium/subprocess/OCR runtime dependency は見つからない。

Blocking issues: none。

Non-blocking concerns / follow-ups:
- Valid multi-page PDF、PDF output truncation、malformed PDF error、unsupported non-PDF binary rejection の tests はあるが、encrypted/textless PDF と oversized PDF `Content-Length` の dedicated tests は無い。実装上は textless pages は readable=false metadata、Content-Length rejection は content-type rendering 前の shared path で covered されるため、この Ticket では blocking ではない。
- Malformed PDF は `pdf_extraction` metadata付き JSON result ではなく `ToolError` を返すが、Ticket は “diagnostic error or readable=false metadata” を許容しているため OK。

Reviewer validation:
- `cargo fmt --check`: passed。
- `git diff --check e752a720..HEAD`: passed。
- `cargo test -p tools web`: passed, 19 tests。
- `cargo check -p tools`: passed。
- `cargo tree -p pdf-extract`: inspected; native PDF runtime dependencyなし。
- `nix build .#yoi --no-link`: passed。

Worktree status at review end: source tree clean; ignored `target/` only。

---

<!-- event: implementation_report author: yoi-orchestrator at: 2026-06-20T12:30:53Z -->

## Implementation report

Merge and final validation report:

Merged implementation branch into Orchestrator branch:
- Merge commit: `97edfe8a merge: webfetch pdf text`
- Implementation commit included:
  - `b1af95ad web: fetch pdf text by pages`

Reviewer outcome:
- r1 approved with no blocking issues。
- Reviewer confirmed WebFetch safety pipeline preservation, exact `application/pdf` handling only, no extension/octet-stream guessing, PDF binary path separation, `pdf_text_by_pages` metadata, output truncation, unsupported binary rejection, existing HTML metadata preservation, and no Poppler/Pdfium/subprocess/OCR runtime dependency。

Orchestrator validation after merge passed:
- `cargo fmt --check`
- `git diff --check HEAD^1..HEAD`
- `cargo test -p tools web`
- `cargo check -p tools`
- `cargo tree -p pdf-extract`
- `nix build .#yoi --no-link`
- `nix path-info -S .#yoi`: `115259736`

Validation log:
- `/run/user/1000/yoi/yoi-orchestrator/bash-output/bash-z7rcEU.log`

Final state:
- Orchestrator worktree clean at `97edfe8a` after validation。
- Implementation worktree remains available for cleanup after Ticket completion records are committed。

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<!-- event: state_changed author: yoi-orchestrator at: 2026-06-20T12:31:02Z from: inprogress to: done reason: merged_reviewed_validated field: state -->

## State changed

Implementation was merged into Orchestrator branch at `97edfe8a`, review approved, and final Orchestrator validation passed: `cargo fmt --check`, `git diff --check HEAD^1..HEAD`, `cargo test -p tools web`, `cargo check -p tools`, `cargo tree -p pdf-extract`, and `nix build .#yoi --no-link`.

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<!-- event: state_changed author: hare at: 2026-06-20T12:31:33Z from: done to: closed reason: closed field: state -->

## State changed

Ticket を closed にしました。


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<!-- event: close author: hare at: 2026-06-20T12:31:33Z status: closed -->

## 完了

## Resolution

`00001KVJA7V2R` を完了しました。

実装内容:
- `WebFetch` に `application/pdf` handling を追加しました。
- PDF bytes は UTF-8 / `reject_binary()` text path を bypass します。
- `pdf_extract::extract_text_from_mem_by_pages()` を `tokio::task::spawn_blocking` 内で使用します。
- PDF output は `## Page 1`, `## Page 2` のような page-delimited text として返します。
- `transformed_as` / `pdf_extraction.method` は `pdf_text_by_pages` を使い、semantic Markdown とは主張しません。
- `pdf_extraction` metadata に method/page/readability/diagnostic 情報を追加しました。
- `max_response_bytes` / `max_output_bytes` / redirects / private-local host rejection / embedded credential rejection など既存 WebFetch safety pipeline は維持しました。
- `application/pdf` のみ対応し、extension sniffing や `application/octet-stream` PDF guessing は追加していません。
- Unsupported binary MIME rejection は維持しました。
- Existing HTML/text behavior and `html_extraction` metadata は維持しました。
- Tests for valid page-delimited PDF output、PDF truncation、malformed PDF diagnostic error、unsupported binary rejection を追加しました。
- `pdf-extract = "0.10.0"` dependency を追加し、`Cargo.lock` / `package.nix` `cargoHash` を更新しました。

主な commit:
- `b1af95ad web: fetch pdf text by pages`
- `97edfe8a merge: webfetch pdf text`

Review:
- r1 は `approve`。
- Reviewer は WebFetch safety pipeline、exact `application/pdf` handling、binary path separation、`pdf_text_by_pages` metadata、output bounds、unsupported binary rejection、HTML metadata preservation、native PDF runtime dependency が無いことを確認しました。

最終 validation:
- `cargo fmt --check`
- `git diff --check HEAD^1..HEAD`
- `cargo test -p tools web`
- `cargo check -p tools`
- `cargo tree -p pdf-extract`
- `nix build .#yoi --no-link`

Package impact:
- New Rust dependency: `pdf-extract 0.10.0`
- `nix path-info -S .#yoi`: `115259736`

Validation log:
- `/run/user/1000/yoi/yoi-orchestrator/bash-output/bash-z7rcEU.log`

---
