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fix: resolve shared AI-SDK tool-call dedup and error handling gaps (#797) - #799

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easonLiangWorldedtech:fix/shared-sdk-error-handle-gap
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easonLiangWorldedtech:fix/shared-sdk-error-handle-gap

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@easonLiangWorldedtech

@easonLiangWorldedtech easonLiangWorldedtech commented Jul 4, 2026 •

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Fix shared AI-SDK tool-call streaming/error-handling gaps (#797)

Problem

src/api/transform/ai-sdk.ts's processAiSdkStreamPart and src/api/providers/openai-compatible.ts (the AI SDK-based shared base class) have two confirmed defects:

1. Missing error handling in OpenAICompatibleHandler

  • createMessage() / completePrompt() have no try/catch, unlike 10+ sibling providers that call handleOpenAIError/handleProviderError
  • Errors never get tagged with provider name or .status, so Task.ts's backoffAndAnnounce (error?.status === 429) never fires 429-aware retry/backoff for handlers built on this base class

Fix: Wrap both methods in try/catch, throw via handleOpenAIError(error, this.config.providerName). Also teach handleProviderError (the shared wrapper behind handleOpenAIError) to preserve the AI SDK APICallError.statusCode as .status (it previously only read .status, which APICallError never sets), so a real 429 reaches Task.backoffAndAnnounce's error?.status === 429 check.

2. Tool-call dedup keyed only on toolCallId

  • Dedup logic suppresses a second event sharing an already-seen toolCallId without checking toolName/arguments
  • If a backend reuses an id for two different tool calls, the second one is silently dropped

Fix: Change all 9 usages of streamingToolCallIndices to use compound key (id, name) — dedupKey = ${event.id}::${event.name}

Dedup rule: the compound key distinguishes re-sent starts of the same call within one stream (stream retry/reconnect). Across API history, tool_use blocks are deduped by ID by the history builder and results are matched by tool_use_id, so a second entry reusing an ID would be orphaned. The PR therefore also adds an explicit guard rejecting any tool_call_start whose ID already appears in assistantMessageContent — the first call with an ID wins (including the alias-resolution rename case, where the streamed name differs from the canonical displayed name). A backend reusing one ID for two genuinely different tool calls cannot be round-tripped by the API; the second start is dropped by design (with a warning), not supported.

Changes

File Description
src/api/providers/openai-compatible.ts Add try/catch + handleOpenAIError to createMessage() and completePrompt()
src/api/providers/utils/error-handler.ts handleProviderError preserves AI SDK APICallError statusCode as .status (Error and non-Error branches), so real 429s reach the 429-aware backoff
src/core/task/Task.ts 9 places: change streamingToolCallIndices ops from single key to compound (id, name)
src/api/transform/stream.ts ApiStreamToolCallEndChunk: add name?: string field
src/core/assistant-message/NativeToolCallParser.ts finalizeRawChunks() emit includes name: tracked.name

Tests Added

  • openai-compatible.spec.ts: 7 tests covering normal streaming, 429, 500, 400/500 errors with .status and provider name verification — the 429 test now constructs a real AI SDK APICallError (which exposes statusCode, not status) instead of a fabricated { status: 429 } object
  • NativeToolCallParser.spec.ts: 2 tests verifying compound key dedup for same-id-different-payload collision
  • duplicate-tool-use-ids.spec.ts: regression test suite for the pre-flight deduplication layer
  • Two local-map-copy test blocks removed as superseded: the compound-key block in duplicate-tool-use-ids.spec.ts (tested a copy of the key logic, not Task, and encoded a pre-guard expectation contradicted by the first-call-wins rule) and the Task.ts compound key dedup and streaming paths block in Task.streaming-tool-calls.spec.ts (its behaviors are covered by the real-Task integration block and the NativeToolCallParser unit specs)

Regression Scope

OpenAICompatibleHandler is abstract and has no production subclasses in the current tree (the concrete handlers for Novita/Moonshot/Poe extend OpenAiHandler/BaseProvider instead). The fixes apply to this base class and to any current or future subclass of it.

Related

Test Procedure

  • Focused suites (83 tests, all passing — green in CI compile + platform-unit-test on head 227de78):
    pnpm --dir src exec vitest run src/api/providers/__tests__/openai-compatible.spec.ts src/core/assistant-message/__tests__/NativeToolCallParser.spec.ts src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts src/core/task/__tests__/duplicate-tool-use-ids.spec.ts src/core/task/__tests__/Task.streaming-tool-calls.spec.ts
  • pnpm --dir src exec tsc --noEmit — no errors
  • pnpm lifecycle:model-check — all 7 model checks pass, including the Native tool-call parser scope check (924/924 interleavings), updated in this PR to the compound streaming-key API

Pre-submission checklist

  • Focused Vitest suites green (see Test Procedure)
  • Type check (tsc --noEmit) clean
  • ESLint clean; no lint-suppression count increases (src/eslint-suppressions.json unchanged)
  • pnpm lifecycle:model-check passes; parser-scoping model check adapted to the compound streaming-key API (fix in 227de78)
  • All 9 streamingToolCallIndices sites in Task.ts migrated to the compound (id, name) key
  • Regression coverage at the lowest valid harness (parser unit tests + provider spec); no e2e added
  • No .changeset files or CHANGELOG edits in this PR

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🔇 Additional comments (1)
src/core/task/Task.ts (1)

4439-4440: LGTM!

Also applies to: 4460-4463


📝 Summary

Summary by CodeRabbit

  • Bug Fixes
    • Streamed tool-call updates now include the tool name, helping keep overlapping calls associated with the correct tool.
    • Calls sharing an ID but having different names can retain separate arguments and results during stream processing. Duplicate IDs continue to resolve to the first call.
    • Provider errors preserve available status details, and OpenAI-compatible provider failures are reported consistently during streaming and text generation.
    • Streamed errors and failures while retrieving usage are handled consistently with other provider errors.

Walkthrough

The change updates OpenAI-compatible provider error handling and native tool-call streaming. Provider failures use shared error handling. Parser and Task state track calls by ID and name, and delta and end chunks can include tool names.

Changes

OpenAI-compatible provider errors

Layer / File(s) Summary
Provider error metadata
src/api/providers/utils/error-handler.ts, src/api/providers/utils/__tests__/error-handler.spec.ts
The shared handler preserves numeric status values or falls back to numeric statusCode. Tests cover missing or invalid status metadata and null inputs.
OpenAI-compatible provider error handling
src/api/providers/openai-compatible.ts, src/api/providers/__tests__/openai-compatible.spec.ts
Stream, usage retrieval, model lookup, and text generation failures go through handleOpenAIError with the configured provider name. Tests cover successful streaming and prompt completion, plus failure cases.

Compound-key tool-call tracking

Layer / File(s) Summary
Parser compound-key state and events
src/api/transform/stream.ts, src/core/assistant-message/NativeToolCallParser.ts
Delta and end chunks can include a tool name. The parser uses escaped ID-and-name keys for streaming state, lookup, processing, and finalization, and includes the tracked name in emitted events.
Task compound-key tracking and validation
src/core/task/Task.ts, src/core/task/__tests__/Task.streaming-tool-calls.spec.ts
Task uses compound keys for stream start, delta, finalization, and cleanup. Tests cover duplicate or reused IDs, distinct calls, malformed arguments, and finalization.
Parser lifecycle and collision coverage
src/core/assistant-message/__tests__/NativeToolCallParser.spec.ts, src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts, src/core/tools/__tests__/askFollowupQuestionTool.spec.ts
Parser tests cover compound-key routing, same-ID calls with different names, delimiter escaping, MCP calls, raw-chunk finalization, and state cleanup. Follow-up tool tests use compound keys when processing and finalizing calls.
Compound-key integrations and stream expectations
scripts/check-native-tool-call-parser-scoping.ts, src/api/providers/__tests__/lmstudio-native-tools.spec.ts, src/api/providers/__tests__/openrouter.spec.ts, src/api/providers/__tests__/qwen-code-native-tools.spec.ts, src/test-utils/__tests__/native-tool-call-stream.spec.ts
Scoping checks use compound keys. Provider and test utility expectations assert that delta events include tool names.

Priority: ➖ Normal

Estimated code review effort: 4 (Complex) | ~45 minutes

Change: Bug fix

Merge Risk: ⚪ Minimal · up to 60f2f

No actionable issue remains in the reviewed change; it is mergeable after normal checks.

Security Architecture Review

Security architecture risk: 🔵 Low · up to 60f2f

Tool-call tracking changes without removing the existing validation and approval controls. No introduced authorization bypass was established. Risk remains low rather than minimal because unusual provider event ordering and interrupted tool-operation recovery are not fully resolved.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

  • inferred — The relevant exposure is provider-controlled tool-call data entering the agent’s configured tool capabilities, including file-writing and MCP operations. The inspected changes do not add a tool capability or bypass the existing execution boundary; effective authority still depends on the existing policy and approval configuration.

Trust Boundaries and Controls

  • observed — The ordinary tool approval callback returns false for denial and true only for an affirmative approval response. Changed streaming handlers retain the presenter boundary, and the new same-ID start guard prevents compound tracking from admitting a second raw-stream call that cannot be represented uniquely in API history.

Resilience and Maintainability Implications

  • observed — Newly thrown provider error parts enter the pre-existing failed-stream recovery path, which reverts editing previews and retries the request. Parser-scope isolation is visible, but it alone does not establish cancellation or idempotency of an already pending complete-tool operation; that recovery relationship remains a coverage limitation, not a verified defect.
🚥 Pre-merge checks | ✅ 7 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Regression Evidence ⚠️ Warning createMessage() obtains the model and language model before its new try block (src/api/providers/openai-compatible.ts:159–160, 181). A failure in either lookup bypasses handleOpenAIError. The focused … Move model acquisition and request setup inside createMessage()'s try block. Add a focused test that makes model lookup fail and verifies the resulting provider-prefixed error and preserved status.
✅ Passed checks (7 passed)
Check name Status Explanation
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.
Security Boundaries ✅ Passed No changed path meets the security failure conditions. The Task changes use the streamed ID and name only to key tool-call state and reject reused IDs (Task.ts:3943–3971). Finalized calls still flow t…
Persistence Integrity ✅ Passed No qualifying persistence defect was introduced. The changed Task code updates in-memory tool-call tracking and content; it does not change persistence operations. After stream finalization, the exi…
Lifecycle Resource Cleanup ✅ Passed No changed lifecycle path leaks a resource or duplicates work after cancellation, disposal, or restart. Task clears streamingToolCallIndices and creates a fresh parser scope at the start of each A…
Title check ✅ Passed The title clearly summarizes the PR’s main changes: tool-call deduplication and error handling.
Description check ✅ Passed The description explains the problem, implementation, related issue, test procedure, and completed checks. It provides enough information for review, though it does not use the template’s exact “Close…
Full details: Regression Evidence

Explanation

createMessage() obtains the model and language model before its new try block (src/api/providers/openai-compatible.ts:159–160, 181). A failure in either lookup bypasses handleOpenAIError. The focused tests cover model-lookup failure in completePrompt(), but not in createMessage(), leaving this affected error branch untested.

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Codecov Report

❌ Patch coverage is 98.57143% with 1 line in your changes missing coverage. Please review.

Files with missing lines Patch % Lines
src/core/assistant-message/NativeToolCallParser.ts 93.75% 1 Missing ⚠️

📢 Thoughts on this report? Let us know!

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Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)
src/core/assistant-message/NativeToolCallParser.ts (1)

53-63: 🗄️ Data Integrity & Integration | 🔴 Critical | 🏗️ Heavy lift

Thread (id, name) through streaming tool calls

  • NativeToolCallParser still keys streamingToolCalls by bare id, so reused backend ids can overwrite another in-flight tool call’s accumulated JSON.
  • processFinishReason() also drops name, and Task.ts reads getStreamingToolName(event.id) after finalization, which turns the end-path dedup key into id::undefined.
    Use the compound key in startStreamingToolCall, processStreamingChunk, finalizeStreamingToolCall, and getStreamingToolName, and include name on every tool_call_end.
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@src/core/assistant-message/NativeToolCallParser.ts` around lines 53 - 63,
Thread the tool call name through streaming state so reused backend ids don’t
collide and finalization keeps the correct lookup key. Update
NativeToolCallParser’s startStreamingToolCall, processStreamingChunk,
finalizeStreamingToolCall, and getStreamingToolName to key streamingToolCalls by
the compound (id, name) instead of bare id, and make processFinishReason
preserve name when emitting tool_call_end events. Ensure Task.ts can still
resolve the streamed tool name after finalization by reading the same compound
key path.
🧹 Nitpick comments (1)
src/core/assistant-message/__tests__/NativeToolCallParser.spec.ts (1)

346-411: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Good coverage of finalizeRawChunks(), but the actual argument-accumulation collision isn't tested.

Both new tests only exercise processRawChunk/finalizeRawChunks (index-keyed rawChunkTracker), not startStreamingToolCall/processStreamingChunk/finalizeStreamingToolCall (id-keyed streamingToolCalls). Since the latter map is where the same-id-different-name collision actually corrupts data (see comment on NativeToolCallParser.ts), consider adding a test that calls startStreamingToolCall("dup_id", "tool_a") and startStreamingToolCall("dup_id", "tool_b") before either finalizes, then verifies both tools' accumulated arguments remain distinct and correct.

As per coding guidelines, "Use package-local unit tests for pure logic, parsing, state transitions, validation, serialization, request construction, retry decisions, and error handling."

🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@src/core/assistant-message/__tests__/NativeToolCallParser.spec.ts` around
lines 346 - 411, The new coverage is testing raw-chunk finalization, but it
misses the real collision path in streaming state. Add a unit test against
NativeToolCallParser’s streaming flow using startStreamingToolCall,
processStreamingChunk, and finalizeStreamingToolCall to simulate two tools with
the same id and different names. Verify that each streamingToolCalls entry keeps
its own accumulated arguments and that finalization returns distinct, correct
results for both tool names.

Source: Coding guidelines

🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Outside diff comments:
In `@src/core/assistant-message/NativeToolCallParser.ts`:
- Around line 53-63: Thread the tool call name through streaming state so reused
backend ids don’t collide and finalization keeps the correct lookup key. Update
NativeToolCallParser’s startStreamingToolCall, processStreamingChunk,
finalizeStreamingToolCall, and getStreamingToolName to key streamingToolCalls by
the compound (id, name) instead of bare id, and make processFinishReason
preserve name when emitting tool_call_end events. Ensure Task.ts can still
resolve the streamed tool name after finalization by reading the same compound
key path.

---

Nitpick comments:
In `@src/core/assistant-message/__tests__/NativeToolCallParser.spec.ts`:
- Around line 346-411: The new coverage is testing raw-chunk finalization, but
it misses the real collision path in streaming state. Add a unit test against
NativeToolCallParser’s streaming flow using startStreamingToolCall,
processStreamingChunk, and finalizeStreamingToolCall to simulate two tools with
the same id and different names. Verify that each streamingToolCalls entry keeps
its own accumulated arguments and that finalization returns distinct, correct
results for both tool names.

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Run ID: 571fc390-4957-406d-a94b-30db466fc4e9

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Reviewing files that changed from the base of the PR and between fa3af3f and 2fc9964.

📒 Files selected for processing (7)
  • src/api/providers/__tests__/openai-compatible.spec.ts
  • src/api/providers/openai-compatible.ts
  • src/api/transform/stream.ts
  • src/core/assistant-message/NativeToolCallParser.ts
  • src/core/assistant-message/__tests__/NativeToolCallParser.spec.ts
  • src/core/task/Task.ts
  • src/core/task/__tests__/duplicate-tool-use-ids.spec.ts

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Actionable comments posted: 2

🧹 Nitpick comments (2)
src/api/providers/__tests__/openai-compatible.spec.ts (1)

174-201: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Weak assertion doesn't validate tool-call chunk content.

The test only checks chunks.length at Line 200, never verifying that tool-call-start/tool-call-delta/tool-call-end stream parts are actually converted into the expected chunk types with correct toolCallId/name/argument data. Given this PR's core fix is tool-call name propagation and id+name compound-key dedup, this test should assert on the actual chunk shape to catch regressions in that path.

As per coding guidelines, spec files should cover "state transitions ... and error handling", which this test currently doesn't exercise meaningfully.

♻️ Proposed stronger assertions
 			const stream = handler.createMessage(systemPrompt, messages)
 			const chunks: any[] = []
 			for await (const chunk of stream) {
 				chunks.push(chunk)
 			}
 
-			expect(chunks.length).toBeGreaterThan(0)
+			const toolCallChunks = chunks.filter((chunk) => chunk.type?.startsWith("tool_call"))
+			expect(toolCallChunks.length).toBeGreaterThan(0)
+			const startChunk = toolCallChunks.find((c) => c.type === "tool_call_start")
+			expect(startChunk).toMatchObject({ id: "tc_1", name: "read_file" })
 		})
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@src/api/providers/__tests__/openai-compatible.spec.ts` around lines 174 -
201, The stream test in openai-compatible.spec.ts is too weak because it only
checks that some chunks were produced and never verifies tool-call event
mapping. Update the test around handler.createMessage/mockStreamText to assert
the actual chunk contents for tool-call-start, tool-call-delta, and
tool-call-end, including toolCallId, propagated name, and parsed argument data.
Use the existing mockFullStream and the returned chunks array to validate the
expected chunk shapes instead of just checking chunks.length.

Source: Coding guidelines

src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts (1)

75-86: 🎯 Functional Correctness | 🔵 Trivial | ⚡ Quick win

Loosened assertion defeats the purpose of the test.

The comment claims MCP tools return "mcp_tool_use" type, but the assertion permits either tool_use or mcp_tool_use, so a regression that returns the wrong type would go undetected.

🧪 Proposed fix to assert the exact expected type
-			expect(result?.type).toMatch(/^(tool_use|mcp_tool_use)$/)
+			expect(result?.type).toBe("mcp_tool_use")
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts`
around lines 75 - 86, The test in NativeToolCallParser-additional.spec.ts is too
permissive because finalizeStreamingToolCall is allowed to return either type,
which masks regressions. Tighten the assertion in the "should return final
McpToolUse for MCP tools on finalize" case to expect the exact MCP-specific type
returned by NativeToolCallParser.finalizeStreamingToolCall for mcp-- prefixed
tool names, and keep the rest of the setup unchanged so the test verifies the
intended behavior precisely.

Source: Coding guidelines

🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In
`@src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts`:
- Around line 96-112: The test case is asserting too weakly and its setup
contradicts the scenario it claims to cover. Update the NativeToolCallParser
spec to exercise the actual “not started” path by passing data that does not
trigger a start event in processRawChunk, then assert the exact events returned
by finalizeRawChunks rather than only checking Array.isArray. Use
clearRawChunkState, processRawChunk, and finalizeRawChunks to verify the
intended state transition and rename the test if needed so the title matches the
behavior being validated.

In `@src/core/task/__tests__/Task.streaming-tool-calls.spec.ts`:
- Around line 553-733: The Task streaming-tool-call integration tests only check
that cline is defined, which does not verify any state transition or parsing
behavior. Update the tests in Task.streaming-tool-calls.spec to assert
observable outcomes after attemptApiRequest(0) and iterator.next(), such as
assistantMessageContent, userMessageContent, or streaming-tool-call state, using
the existing Task instance and mock stream generators. For the duplicate
tool_call_start and lifecycle cases, add assertions that the dedup/path handling
actually occurred, or spy on NativeToolCallParser / related internal methods so
the tests validate the raw-chunk routing they are meant to cover.

---

Nitpick comments:
In `@src/api/providers/__tests__/openai-compatible.spec.ts`:
- Around line 174-201: The stream test in openai-compatible.spec.ts is too weak
because it only checks that some chunks were produced and never verifies
tool-call event mapping. Update the test around
handler.createMessage/mockStreamText to assert the actual chunk contents for
tool-call-start, tool-call-delta, and tool-call-end, including toolCallId,
propagated name, and parsed argument data. Use the existing mockFullStream and
the returned chunks array to validate the expected chunk shapes instead of just
checking chunks.length.

In
`@src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts`:
- Around line 75-86: The test in NativeToolCallParser-additional.spec.ts is too
permissive because finalizeStreamingToolCall is allowed to return either type,
which masks regressions. Tighten the assertion in the "should return final
McpToolUse for MCP tools on finalize" case to expect the exact MCP-specific type
returned by NativeToolCallParser.finalizeStreamingToolCall for mcp-- prefixed
tool names, and keep the rest of the setup unchanged so the test verifies the
intended behavior precisely.
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  • Push a commit to this branch (recommended)
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Configuration used: defaults

Review profile: CHILL

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Run ID: f191ed26-f5c7-4454-bb03-95535202595b

📥 Commits

Reviewing files that changed from the base of the PR and between 2fc9964 and 38e274c.

📒 Files selected for processing (3)
  • src/api/providers/__tests__/openai-compatible.spec.ts
  • src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts
  • src/core/task/__tests__/Task.streaming-tool-calls.spec.ts

Comment thread src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts Outdated
Comment thread src/core/task/__tests__/Task.streaming-tool-calls.spec.ts Outdated
@github-actions github-actions Bot added the awaiting-review PR changes are ready and waiting for maintainer re-review label Jul 4, 2026
@easonLiangWorldedtech
easonLiangWorldedtech marked this pull request as draft July 4, 2026 12:04
@github-actions github-actions Bot removed the awaiting-review PR changes are ready and waiting for maintainer re-review label Jul 4, 2026
- Add NativeToolCallParser tests for hasActiveStreamingToolCalls() and getStreamingToolName()

- Add openai-compatible tests for streamText multiple parts and usage handling

- Add Task integration tests for tool_call_start/delta/end lifecycle
@easonLiangWorldedtech
easonLiangWorldedtech force-pushed the fix/shared-sdk-error-handle-gap branch from fdd3770 to 26ffe1d Compare July 5, 2026 07:09
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easonLiangWorldedtech and others added 4 commits October 1, 2026 14:39
… paths

Closes the local preflight gaps found on the streaming-tool-call and error
handler work, with every survivor either killed by a new test or documented:

- error-handler: non-Error statusCode fallback, missing-status negative case,
  non-numeric statusCode rejection, and the null-throw path.
- openai-compatible: configured temperature must reach generateText
  unchanged (guards the ?? 0 fallback).
- Task: a real-Task stream test proving distinct call IDs are all accepted
  (the ID guard is per-ID, not a global lock) and a reused ID already held by
  an mcp_tool_use entry is rejected.
- NativeToolCallParser: exact compound-key escape encoding, the naive-join
  collision case, and the defensive lookups' total behavior.
- Task: six `Stryker disable next-line` directives with concrete proofs for
  the unreachable defensive checks around the compound streaming key.

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Actionable comments posted: 2


  • 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @src/api/providers/utils/error-handler.ts:
- Around line 81-83: Update the preservedStatus selection in the error-wrapping
logic to use anyErr.status only when it is numeric, otherwise fall back to
anyErr.statusCode only when that is numeric; leave the status unset when neither
value is numeric so Task.backoffAndAnnounce cannot emit a nonnumeric retry
status.

Review comments at @src/core/task/__tests__/Task.streaming-tool-calls.spec.ts:
- Around line 633-798: Rename the “tool_call_partial chunk handling - Task
integration” describe block to identify NativeToolCallParser as its subject,
since its tests call processRawChunk and finalizeRawChunks directly rather than
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🧠 Learnings (1)
📓 Common learnings
Learnt from: easonLiangWorldedtech
Repo: Zoo-Code-Org/Zoo-Code PR: 799
File: src/core/task/Task.ts:3379-3379
Timestamp: 2026-09-28T00:58:02.462Z
Learning: In `src/core/task/Task.ts`, `NativeToolCallParser.processStreamingChunk()` can replace a streaming `search_and_replace` entry with a partial `ToolUse` named `edit`, while retaining `search_and_replace` in `originalName`. A later tool-call start that reuses the same ID must be rejected based on ID, not the entry's displayed name, because API history and tool results match by ID.
Learnt from: easonLiangWorldedtech
Repo: Zoo-Code-Org/Zoo-Code PR: 799
File: src/core/task/Task.ts:3364-3364
Timestamp: 2026-09-27T18:47:14.257Z
Learning: In `src/core/task/Task.ts`, streamed tool calls use the provider's original call ID for tool-result matching. If a second tool call reuses that ID under a different name, reject the second call before presentation; changing only its tool-use ID would leave its tool result unmatched.
🪛 ESLint
src/api/providers/utils/error-handler.ts

[error] 83-83: Unexpected any. Specify a different type.

(@typescript-eslint/no-explicit-any)


[error] 105-105: Unexpected any. Specify a different type.

(@typescript-eslint/no-explicit-any)


[error] 113-113: Unexpected any. Specify a different type.

(@typescript-eslint/no-explicit-any)

🪛 GitHub Check: mutation-diff
src/api/providers/utils/error-handler.ts

[warning] 82-82: Mutation test advisory
src/api/providers/utils/error-handler.ts:82: Survived ConditionalExpression mutant (replacement: true). See the job summary for the complete list and resolution guidance.

🔇 Additional comments (3)
src/api/providers/utils/__tests__/error-handler.spec.ts (1)

49-88: LGTM!

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

1-487: LGTM!

src/core/task/Task.ts (1)

3936-3966: LGTM!

Also applies to: 3984-3984, 4003-4039, 4424-4459, 4470-4471, 4500-4501

Comment thread src/api/providers/utils/error-handler.ts Outdated
Comment thread src/core/task/__tests__/Task.streaming-tool-calls.spec.ts Outdated
A null or nonnumeric Error.status was taken as-is, so a nonnumeric value reached
Task.backoffAndAnnounce's retry header and a numeric statusCode was ignored.

The describe block named for Task integration only exercised the parser directly,
so rename it to name the parser as its subject.
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Review comments at @src/api/providers/utils/__tests__/error-handler.spec.ts:
- Around line 71-78: Strengthen the nonnumeric statusCode test by asserting that
the Error returned by handleProviderError does not have a status property,
ensuring the string value is not copied into status.

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Source excerpt: Parser request scoping is one such independent bounded submodel within the umbrella suite.

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🧠 Learnings (1)
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Learnt from: easonLiangWorldedtech
Repo: Zoo-Code-Org/Zoo-Code PR: 799
File: src/core/task/Task.ts:3364-3364
Timestamp: 2026-09-27T18:47:14.257Z
Learning: In `src/core/task/Task.ts`, streamed tool calls use the provider's original call ID for tool-result matching. If a second tool call reuses that ID under a different name, reject the second call before presentation; changing only its tool-use ID would leave its tool result unmatched.
🔇 Additional comments (18)
src/api/providers/utils/error-handler.ts (1)

59-59: LGTM!

Also applies to: 78-88, 108-118

src/api/providers/openai-compatible.ts (1)

19-19: LGTM!

Also applies to: 181-208, 215-228

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

1-487: LGTM!

src/api/transform/stream.ts (1)

90-102: LGTM!

src/core/assistant-message/NativeToolCallParser.ts (3)

54-75: LGTM!


170-174: LGTM!


282-317: LGTM!

src/core/task/Task.ts (3)

3936-3966: LGTM!


4003-4039: LGTM!


4424-4459: LGTM!

src/core/task/__tests__/Task.streaming-tool-calls.spec.ts (1)

800-1074: LGTM!

src/core/tools/__tests__/askFollowupQuestionTool.spec.ts (1)

492-502: LGTM!

src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts (1)

1-202: LGTM!

scripts/check-native-tool-call-parser-scoping.ts (1)

48-51: LGTM!

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

382-386: LGTM!

src/api/providers/__tests__/openrouter.spec.ts (1)

676-680: LGTM!

src/api/providers/__tests__/qwen-code-native-tools.spec.ts (1)

396-400: LGTM!

src/test-utils/__tests__/native-tool-call-stream.spec.ts (1)

17-64: LGTM!

Comment thread src/api/providers/utils/__tests__/error-handler.spec.ts
The test only checked the instance type, which also passes if the string "429"
is copied into .status - the exact regression the typeof guard prevents.
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Done in eb2e1237e — the assertion is added, with a comment naming the regression it guards (a string "429" copied into .status).

33 tests in the suite pass; prettier, eslint and tsc --noEmit are clean.

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Comment thread src/core/assistant-message/NativeToolCallParser.ts
Comment thread src/core/task/Task.ts
The Task test for the name change still passes without the lock because the id
fallback finalizes the entry. Add a parser test that streams a different name
after the start event: the delta and end events must still report the name the
call started with. Verified by removing the lock - this test fails.
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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
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Review comments at @src/core/task/Task.ts:
- Around line 4434-4441: Reuse the existing dedupKey in both
finalizeStreamingToolCall calls in this event-handling flow instead of
recomputing it with makeStreamingKey, so finalization and index cleanup use the
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  • src/api/providers/__tests__/openrouter.spec.ts
  • src/api/providers/__tests__/qwen-code-native-tools.spec.ts
  • src/api/providers/openai-compatible.ts
  • src/api/providers/utils/__tests__/error-handler.spec.ts
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  • src/api/transform/stream.ts
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  • src/core/tools/__tests__/askFollowupQuestionTool.spec.ts
  • src/api/transform/stream.ts
  • src/api/providers/openai-compatible.ts
  • src/api/providers/utils/error-handler.ts
  • src/api/providers/utils/__tests__/error-handler.spec.ts
  • src/api/providers/__tests__/openai-compatible.spec.ts
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  • src/core/tools/__tests__/askFollowupQuestionTool.spec.ts
  • src/test-utils/__tests__/native-tool-call-stream.spec.ts
  • src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts
  • src/api/providers/utils/__tests__/error-handler.spec.ts
  • src/api/providers/__tests__/openai-compatible.spec.ts
  • src/core/task/__tests__/Task.streaming-tool-calls.spec.ts
  • src/core/assistant-message/__tests__/NativeToolCallParser.spec.ts
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  • src/api/providers/__tests__/openrouter.spec.ts
  • src/api/providers/__tests__/lmstudio-native-tools.spec.ts
  • src/api/providers/__tests__/qwen-code-native-tools.spec.ts
  • src/core/tools/__tests__/askFollowupQuestionTool.spec.ts
  • src/api/transform/stream.ts
  • scripts/check-native-tool-call-parser-scoping.ts
  • src/test-utils/__tests__/native-tool-call-stream.spec.ts
  • src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts
  • src/api/providers/openai-compatible.ts
  • src/api/providers/utils/error-handler.ts
  • src/api/providers/utils/__tests__/error-handler.spec.ts
  • src/api/providers/__tests__/openai-compatible.spec.ts
  • src/core/task/Task.ts
  • src/core/task/__tests__/Task.streaming-tool-calls.spec.ts
  • src/core/assistant-message/__tests__/NativeToolCallParser.spec.ts
  • src/core/assistant-message/NativeToolCallParser.ts
Verify extension/webview contracts, cancellation and error propagation, VS Code lifecycle correctness, and behavior under retries and partial failure.

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  • src/api/providers/__tests__/qwen-code-native-tools.spec.ts
  • src/core/tools/__tests__/askFollowupQuestionTool.spec.ts
  • src/api/transform/stream.ts
  • src/test-utils/__tests__/native-tool-call-stream.spec.ts
  • src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts
  • src/api/providers/openai-compatible.ts
  • src/api/providers/utils/error-handler.ts
  • src/api/providers/utils/__tests__/error-handler.spec.ts
  • src/api/providers/__tests__/openai-compatible.spec.ts
  • src/core/task/Task.ts
  • src/core/task/__tests__/Task.streaming-tool-calls.spec.ts
  • src/core/assistant-message/__tests__/NativeToolCallParser.spec.ts
  • src/core/assistant-message/NativeToolCallParser.ts
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  • src/api/providers/__tests__/lmstudio-native-tools.spec.ts
  • src/api/providers/__tests__/qwen-code-native-tools.spec.ts
  • src/core/tools/__tests__/askFollowupQuestionTool.spec.ts
  • src/api/transform/stream.ts
  • scripts/check-native-tool-call-parser-scoping.ts
  • src/test-utils/__tests__/native-tool-call-stream.spec.ts
  • src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts
  • src/api/providers/openai-compatible.ts
  • src/api/providers/utils/error-handler.ts
  • src/api/providers/utils/__tests__/error-handler.spec.ts
  • src/api/providers/__tests__/openai-compatible.spec.ts
  • src/core/task/Task.ts
  • src/core/task/__tests__/Task.streaming-tool-calls.spec.ts
  • src/core/assistant-message/__tests__/NativeToolCallParser.spec.ts
  • src/core/assistant-message/NativeToolCallParser.ts
Source excerpt: Parser request scoping is one such independent bounded submodel within the umbrella suite.

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🔇 Additional comments (15)
src/api/providers/utils/error-handler.ts (1)

59-59: LGTM!

Also applies to: 78-88, 108-118

src/api/providers/utils/__tests__/error-handler.spec.ts (1)

49-123: LGTM!

src/api/providers/openai-compatible.ts (1)

19-19: LGTM!

Also applies to: 181-208, 215-228

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

1-487: LGTM!

src/api/transform/stream.ts (1)

90-102: LGTM!

src/core/assistant-message/NativeToolCallParser.ts (1)

54-75: LGTM!

src/core/task/__tests__/Task.streaming-tool-calls.spec.ts (1)

842-1074: LGTM!

src/core/tools/__tests__/askFollowupQuestionTool.spec.ts (1)

492-502: LGTM!

src/core/assistant-message/__tests__/NativeToolCallParser.spec.ts (1)

1058-1126: LGTM!

src/core/assistant-message/__tests__/NativeToolCallParser-additional.spec.ts (1)

1-202: LGTM!

scripts/check-native-tool-call-parser-scoping.ts (1)

48-51: LGTM!

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

388-392: LGTM!

src/api/providers/__tests__/openrouter.spec.ts (1)

676-680: LGTM!

src/api/providers/__tests__/qwen-code-native-tools.spec.ts (1)

396-400: LGTM!

src/test-utils/__tests__/native-tool-call-stream.spec.ts (1)

17-64: LGTM!

Comment thread src/core/task/Task.ts
…call

The finalize call recomputed makeStreamingKey with the same arguments as the dedupKey two lines
above it, and the defensive branch repeated the same pattern. Finalization and index cleanup now
use one key, so they cannot diverge.

tsc clean, 168 tests pass, ESLint --max-warnings=0 clean, no suppression change.
@easonLiangWorldedtech

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Applied at 60f2fa5ba. Both finalize sites now pass dedupKey instead of recomputing makeStreamingKey with the same arguments, so finalization and index cleanup always use one key. tsc clean, 168 tests pass, ESLint --max-warnings=0 clean, no suppression change.

@easonLiangWorldedtech

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@coderabbitai review

Fresh review requested at head 60f2fa5ba. The finding on the duplicated key computation is applied there (both finalize sites now pass dedupKey), and the thread is resolved. tsc clean, 168 tests pass, ESLint --max-warnings=0 clean, no suppression change.

@coderabbitai

coderabbitai Bot commented Oct 5, 2026 •

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