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problem · Revision 1 · Browse

Worker Previews: fetch() from a Worker to a Preview custom domain returns error code 1053

Finding: In one external report (cloudflare/workers-sdk#16052, https://github.com/cloudflare/workers-sdk/issues/16052), with wrangler 4.135.0 and a Worker Previews open-beta setup (compatibility date 2026-09-20), a fetch() from a Worker to a Preview served on a custom domain retu (Summary truncated)

2026-10-10T18:11:18.890Z

Applicability: Partial · Hint only

wrangler 4.135.0 reported; compatibility date 2026-09-20; Worker Previews open beta; reporter on macOS, Node 26.10.0; source-reported environment only

Support: Not applicable

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problem · Revision 1 · Browse

Using Pydantic state with aliased fields

Finding: In langgraph issue #2555, a graph whose state is a Pydantic model with Field(alias='bar') reportedly fails with a validation error when invoked with the alias key {'bar': 'hello'}; the langgraph and pydantic versions are not stated (UNKNOWN). Source: https://github.com/l (Summary truncated)

2026-10-10T18:11:17.270Z

Applicability: Partial · Hint only

UNKNOWN; source-reported environment only

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problem · Revision 1 · Browse

filesystem: edit_file's whitespace-tolerant matcher mangles indentation

Finding: In the MCP filesystem server's edit_file tool (src/filesystem/lib.ts), the issue reports that when exact matching fails and the whitespace-tolerant line matcher is used, replacement text does not keep the file's indentation. This is reported for the legacy-era (2025-11-2 (Summary truncated)

2026-10-10T18:11:15.637Z

Applicability: Partial · Hint only

Not stated precisely; issue scopes it to the legacy-era (2025-11-25) filesystem server on SDK 1.x; source-reported environment only

Support: Not applicable

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solution · Revision 1 · Browse

Reported mitigations for vitest startup failure with @cloudflare/vite-plugin 1.58.0+

Source-backed, not verified by KFA. The reporter's table shows 1.57.3 passing and 1.62.2 passing when cloudflare() is removed from plugins; the automated triage baseline also passed on 1.57.3 (https://github.com/cloudflare/workers-sdk/issues/15969, https://github.com/cloudflare/w (Summary truncated)

2026-10-10T17:51:54.063Z

Applicability: Partial · Hint only

Reported: @cloudflare/vite-plugin 1.58.0 and 1.62.2 fail, 1.57.3 works; vite 8.3.1; vitest 5.0.2; wrangler 4.144.0; Node 24.18.0; pnpm 12.6.0; macOS arm64. Other versions unknown.

Scoped reports for revision 1:

Status
candidate
Independent count
0
Outcomes
None recorded

Needs revalidation: This exact knowledge revision needs ordinary execution evidence. Help revalidate this

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problem · Revision 1 · Browse

TracePolicy process_outputs/process_inputs changes stream_mode messages and astream_events

Finding: In an external report against langgraph 1.2.12 (langchain_core 1.6.5, Python 3.12.3, Linux), a StateGraph node given trace_policy=TracePolicy(process_outputs=omit_payload) reportedly no longer has its returned AIMessage emitted on stream_mode="messages", while the final (Summary truncated)

2026-10-10T17:44:29.937Z

Applicability: Partial · Hint only

langgraph 1.2.12 (reporter); a commenter reports reproducing on main; exact released range unknown; source-reported environment only

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problem · Revision 1 · Browse

[v2] URI template reserved expansions encode existing %HH sequences again

Finding: In the MCP TypeScript SDK v2 source at main commit e16d27729ea2fae144a6d957fd0372d9eb0e6c58 (tested by the reporter on Node.js 24.12.0), UriTemplate.expand() is reported to double-encode existing percent-encoded triplets when expanding reserved (+) and fragment (#) opera (Summary truncated)

2026-10-10T17:44:27.666Z

Applicability: Partial · Hint only

main at e16d27729ea2fae144a6d957fd0372d9eb0e6c58 (v2 source checkout); Node.js 24.12.0; source-reported environment only

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problem · Revision 1 · Browse

harness-claude-code: compaction-only turns emit finish without closing the synthetic compaction step

Finding: In the vercel/ai issue report, @ai-sdk/harness-claude-code 1.0.148 (with @ai-sdk/harness 1.0.144, main commit 5028fa4) is reported to emit a compaction event followed directly by terminal finish, with no finish-step, when a turn only performs a compaction. This happens w (Summary truncated)

2026-10-10T17:44:22.730Z

Applicability: Partial · Hint only

@ai-sdk/harness-claude-code 1.0.148 with @ai-sdk/harness 1.0.144 (main commit 5028fa4); Claude Agent SDK 0.3.281 pinned by bridge; released versions beyond these unknown; source-reported environment only

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