fix(ollama): bound pending native tool calls

[luvs01]

Summary

The ollama-native stream parser retained every pending tool call the provider emitted — with no count bound, no name-size bound, and no retained-memory charge. A hostile or malfunctioning provider could grow the pending-call map and retained name strings without limit.

• NATIVE_MAX_PENDING_TOOL_CALLS (128) caps distinct pending calls; exceeding it fails the response instead of buffering unboundedly.
• NATIVE_TOOL_NAME_MAX_BYTES (1024) bounds each tool-call name before it is retained.
• Each pending call now charges its name bytes plus bookkeeping into the shared retained-memory budget (kind: "tool_args"), so retention is bounded by the same accounting as other stream state.

Verification

• bun test tests/providers/ollama/ollama-native-parser.test.ts — 29 pass, including new bound cases.

Checklist

• Base is dev
• Tests updated for the new behavior

Summary by CodeRabbit

• Bug Fixes
  • Improved handling of streamed tool calls by rejecting tool names that exceed size limits and responses with more than 128 pending calls.
  • Tool names retained across streamed responses now count toward the overall translation-buffer limit, helping prevent excessive resource use.

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📥 Commits

Reviewing files that changed from the base of the PR and between bc10d7f and dabadb7.

📒 Files selected for processing (2)

• src/adapters/ollama-native.ts
• tests/providers/ollama/ollama-native-parser.test.ts

📝 Walkthrough

Walkthrough

The Ollama native adapter now limits tool-name size and pending tool-call count. It also charges retained tool-call names and a bookkeeping allowance to the translator budget. Streaming tests cover these limits and budget overflow.

Changes

Ollama Native Tool-Call Limits

Layer / File(s)	Summary
Enforce tool-call limits and account for retained data src/adapters/ollama-native.ts, tests/providers/ollama/ollama-native-parser.test.ts	The adapter rejects tool names over 1,024 UTF-8 bytes and more than 128 pending calls. Each new call adds its name bytes and a 128-byte bookkeeping allowance to the translator budget. Streaming tests cover both rejection limits and budget overflow.

Priority: ➖ Normal

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

Change: Bug fix

Merge Risk: 🟡 Moderate · up to bc10d

With a configured per-call argument limit, Ollama can reject a permitted tool name before processing its arguments. Separate metadata accounting from the argument limit before merging.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 2 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: limiting pending Ollama-native tool calls to bound retained memory.
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]

✅ Deterministic PR hygiene checks passed.

[lidge-jun]

리뷰 · 우선순위 64 / 80

이 풀리퀘스트는 바탕이 dev예요. Ollama 기본 응답은 도구 호출을 맵에 모아 두는데, 개수와 이름 길이를 막지 않았어요. 고장난 서버가 호출을 계속 보내면 맵과 이름 문자열이 같이 커졌어요. 이제는 대기 호출이 128개에 닿으면 응답을 실패로 돌려요. 이름 하나는 1024바이트를 넘기면 같은 실패예요. 맵에 새 호출을 넣기 전에, 이름 바이트와 장부 128바이트를 다른 스트림 상태와 같은 메모리 장부(tool_args)에 적어요. types.ts와 config.ts는 안 건드려요. 같은 내용의 다른 열린 글은 없어요. 지금 dev 끝은 ed181a0d예요.

라인 - tests/providers/ollama/ollama-native-parser.test.ts 403행 — 예산 테스트의 상한은 2500바이트예요. 호출 세 개의 이름(각 700)과 장부(각 128)와 빈 인자 {}(각 2)를 더하면 2490이에요. 2490은 2500 안쪽이에요. 세 번째 이름이 장부에 들어갈 때 JSON 한 줄(834바이트)이 아직 잡혀 있어서 합이 3322가 되고, 그때 translation_buffer_limit이 나요. 그 줄을 도구 파싱보다 먼저 놓으면 남은 합은 2490이에요. 상한 2500 안쪽이라, 이름 청구만으로는 이 테스트가 실패를 못 봐요. 상한을 2000으로 낮추면 이름 청구만으로 실패가 나요.

메인테이너의 판단이 필요한 지점

장부 128바이트는 맵 한 칸을 대략 잡은 고정 숫자예요. 호출 128개 상한이 그 칸이 끝없이 늘어나는 일을 막아요.

CI 실행 36039737100은 테스트가 끝나기 전에 취소됐어요. 집계 잡은 요청된 잡이 cancelled라고 실패했어요. 넣기 전에 그 실행을 다시 돌려 주세요.

너의 추천

방향은 맞아요. 바탕은 dev예요. 스트림과 한 번에 오는 JSON이 같은 nativeMessageEvents에서 개수와 이름을 끊어요. 129번째 호출은 invalid_ollama_native_payload로 끝나고, 그 앞에서 모아 둔 호출은 도구 시작 이벤트로 나가지 않아요.

파서 쪽은 이대로 넣어도 돼요. 예산 테스트의 maxTurnBytes는 2000으로 낮추고, 취소된 CI는 다시 돌려 주세요.

이 댓글은 grok-bot이 작성했습니다

[luvs01]

유지관리자 권고를 모두 반영했습니다 (head: bc10d7f).

• 예산 테스트 상한: maxTurnBytes를 2500 → 2000으로 낮췄습니다. 2000은 이름+장부 청구 합(3 × (700+128) = 2484)보다 낮아서, 버퍼링된 JSON 줄이 아니라 이름 청구만으로 오버플로가 납니다. 주석에 그 근거를 남겼습니다.
• 취소된 CI 재실행: run 36039737100을 gh run rerun으로 재큐했습니다(queued 확인). 이번 푸시로 새 실행도 트리거됩니다.

검증: ollama-native-parser 29/29 통과.

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Actionable comments posted: 2

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Inline comments:
In `@src/adapters/ollama-native.ts`:
- Around line 644-647: Update the tool-name metadata charge in the Ollama native
adapter to use the shared retained-memory budget without associating it with
call.budgetKey, so it does not consume the per-call argument allowance. Preserve
release of this metadata charge when the tool call closes.

In `@tests/providers/ollama/ollama-native-parser.test.ts`:
- Line 384: Add multibyte UTF-8 boundary coverage to the tool-name length tests:
use `"é".repeat(513)` to verify a name exceeding 1024 UTF-8 bytes is rejected,
and `"é".repeat(512)` to verify a name at the 1024-byte limit is accepted. Keep
the existing ASCII case.

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ℹ️ Review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 5cdd97e and bc10d7f.

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• src/adapters/ollama-native.ts
• tests/providers/ollama/ollama-native-parser.test.ts

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[Ingwannu]

Reviewed exact head dabadb763f77e7ae5fd2557598a84c5f39aa5b62. The adapter now bounds both pending-call cardinality and UTF-8 tool-name size, charges name/bookkeeping state to the shared retained budget without consuming per-call argument allowance, and releases that state on teardown/error. The 2,000-byte regression threshold directly proves metadata accounting. Focused bounded parser suite passed 29/29 under CPUQuota=200%, MemoryMax=4G, swap disabled.