Claude Code

Workflow runs for Claude Code

• Ordinary-class structured outputs discard Annotated field constraints and accept invalid values

  skipped:
  Claude Code#8894:Issue comment#3712 (comment)createdbydhvani7014
  Oct 15, 202610s
  More actions for workflow run 8894

• A synchronous prompt callback returning Awaitable is rendered as coroutine text

  skipped:
  Claude Code#8893:Issue comment#3709 (comment)createdbyleninworld
  Oct 15, 20261s
  More actions for workflow run 8893

• FuncMetadata.pre_parse_json mis-detects str | None as non-string and corrupts JSON-looking string arguments

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  Claude Code#8892:Issue comment#3055 (comment)createdbyinanna-malick
  Oct 14, 20262s
  More actions for workflow run 8892

• ClientSessionGroup raises KeyError when a server exposes no tools, resources or prompts

  skipped:
  Claude Code#8891:Issue comment#3384 (comment)createdbyinanna-malick
  Oct 14, 20261s
  More actions for workflow run 8891

• stdio_client with strict decoding withholds fatal read errors until peer stdout EOF

  skipped:
  Claude Code#8890:Issue#3714openedbyinanna-malick
  Oct 14, 202610s
  More actions for workflow run 8890

• ClientSessionGroup leaves old tools after disconnecting a re-registered session

  skipped:
  Claude Code#8889:Issue#3713openedbyinanna-malick
  Oct 14, 20261s
  More actions for workflow run 8889

• Generated output schema uses Pydantic's validation shape while structured output uses its serialization shape

  skipped:
  Claude Code#8888:Issue comment#3100 (comment)createdbyinanna-malick
  Oct 14, 20261s
  More actions for workflow run 8888

• dict[str, T] tool return types lose Annotated/Field metadata in output schema

  skipped:
  Claude Code#8887:Issue comment#2935 (comment)createdbyinanna-malick
  Oct 14, 202611s
  More actions for workflow run 8887

• Ordinary-class structured outputs discard Annotated field constraints and accept invalid values

  skipped:
  Claude Code#8886:Issue#3712openedbyinanna-malick
  Oct 14, 20261s
  More actions for workflow run 8886

• Dataclass structured outputs mishandle slots and InitVar fields

  skipped:
  Claude Code#8885:Issue#3711openedbyinanna-malick
  Oct 14, 20261s
  More actions for workflow run 8885

• Prompt handlers returning UserList are rendered as one text message

  skipped:
  Claude Code#8884:Issue comment#3643 (comment)createdbyinanna-malick
  Oct 14, 20261s
  More actions for workflow run 8884

• A tool with a *args or **kwargs parameter is registered with a schema it can never satisfy

  skipped:
  Claude Code#8883:Issue comment#3514 (comment)createdbyinanna-malick
  Oct 14, 20261s
  More actions for workflow run 8883

• Field alias is published in the tool schema but forwarded as an invalid Python keyword

  skipped:
  Claude Code#8882:Issue comment#3099 (comment)createdbyinanna-malick
  Oct 14, 20261s
  More actions for workflow run 8882

• Tool parameters model_dump and field_model_dump collide in the generated input schema

  skipped:
  Claude Code#8881:Issue#3710openedbyinanna-malick
  Oct 14, 20261s
  More actions for workflow run 8881

• A synchronous prompt callback returning Awaitable is rendered as coroutine text

  skipped:
  Claude Code#8880:Issue#3709openedbyinanna-malick
  Oct 14, 20262s
  More actions for workflow run 8880

• A lone surrogate in an outgoing message silently kills the stdio server's writer or the client session

  skipped:
  Claude Code#8879:Issue comment#3707 (comment)createdbynaveecode
  Oct 14, 20269s
  More actions for workflow run 8879

• A lone surrogate in an outgoing message silently kills the stdio server's writer or the client session

  skipped:
  Claude Code#8878:Issue#3707openedbyYatsuiii
  Oct 14, 20261s
  More actions for workflow run 8878

• Client SSRF / protocol confusion: streamable HTTP transport follows server 3xx into internal+loopback services (follow_redirects=True, no host validation; #2106 closed but fix #2180 never merged)

  skipped:
  Claude Code#8877:Issue comment#3358 (comment)createdbytrickyfalcon
  Oct 14, 20269s
  More actions for workflow run 8877

• 2026-07-28 SSE responses share one header list, so in-place middleware appends leak across responses

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  Claude Code#8876:Issue comment#3701 (comment)createdbyer-s-an
  Oct 14, 20261s
  More actions for workflow run 8876

• AuthSettings.issuer_url is required in resource-server-only mode but never used

  skipped:
  Claude Code#8875:Issue comment#3702 (comment)createdbylzif
  Oct 14, 20261s
  More actions for workflow run 8875

• stdio_client: receiving a large response takes quadratic time (buffer + chunk is re-copied for every chunk)

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  Claude Code#8874:Issue comment#3699 (comment)createdbymaxiaochaos
  Oct 14, 20261s
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• OAuth token refresh hits the wrong endpoint when the auth server lives under a path

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  Claude Code#8873:Issue comment#3240 (comment)createdbyzsxh1990
  Oct 14, 20261s
  More actions for workflow run 8873

• stdio_client: receiving a large response takes quadratic time (buffer + chunk is re-copied for every chunk)

  skipped:
  Claude Code#8872:Issue comment#3699 (comment)createdbyBruceWayne733
  Oct 14, 20261s
  More actions for workflow run 8872

• 401 in Streamable HTTP should be handled gracefully

  skipped:
  Claude Code#8871:Issue comment#1295 (comment)createdbyKludex
  Oct 14, 20261s
  More actions for workflow run 8871

• bug(client/streamable_http): prevent infinite SSE reconnect loops with bounded exponential backoff

  skipped:
  Claude Code#8870:Issue comment#3356 (comment)createdbyKludex
  Oct 14, 20261s
  More actions for workflow run 8870