Issues

• Native OTLP spans use different span names and attribute keys than the GenAI semantic conventions

  enhancementquestion
  anthropics/claude-agent-sdk-python#1537 · Filter by author simin-yuan opened on Nov 14, 2026

• Duplicate MCP tool names collapse routing while tools/list keeps both entries

  buggood first issue
  anthropics/claude-agent-sdk-python#1523 · Filter by author kriptmwan opened on Nov 14, 2026

• parse_message passes wrong-typed scalars into declared-str fields (hook_event_name, user content)

  buggood first issue
  anthropics/claude-agent-sdk-python#1522 · Filter by author kriptmwan opened on Nov 14, 2026

• Corrupt .credentials.json aborts store-backed resume even with API-key auth

  buggood first issue
  anthropics/claude-agent-sdk-python#1521 · Filter by author kriptmwan opened on Nov 14, 2026

• InMemorySessionStore.append([]) creates a phantom session

  buggood first issue
  anthropics/claude-agent-sdk-python#1520 · Filter by author kriptmwan opened on Nov 14, 2026

• Negative offset with a positive limit returns an empty/wrong page from get_session_messages

  buggood first issue
  anthropics/claude-agent-sdk-python#1519 · Filter by author kriptmwan opened on Nov 14, 2026

• Invalid UTF-8 in a session file escapes get_session_messages as UnicodeDecodeError

  buggood first issue
  anthropics/claude-agent-sdk-python#1518 · Filter by author kriptmwan opened on Nov 14, 2026

• Stale _exit_error refuses writes after a successful reconnect

  buggood first issue
  anthropics/claude-agent-sdk-python#1517 · Filter by author kriptmwan opened on Nov 14, 2026
  1

• Failed/cancelled control requests leak pending_control_responses entries permanently

  bug
  anthropics/claude-agent-sdk-python#1516 · Filter by author kriptmwan opened on Nov 14, 2026

• Malformed frames kill the read loop; malformed control_request gets no error response

  bug
  anthropics/claude-agent-sdk-python#1515 · Filter by author kriptmwan opened on Nov 14, 2026

• query() leaks the CLI child process when setup fails after connect() (internal client)

  bug
  anthropics/claude-agent-sdk-python#1514 · Filter by author kriptmwan opened on Nov 14, 2026

• _build_input_schema misclassifies properties-less JSON Schemas as param mappings, breaking no-arg tools

  bug
  anthropics/claude-agent-sdk-python#1509 · Filter by author kriptmwan opened on Nov 14, 2026
  1

• parse_message raises raw TypeError instead of MessageParseError on non-dict nested payloads

  buggood first issue
  anthropics/claude-agent-sdk-python#1508 · Filter by author kriptmwan opened on Nov 14, 2026

• Non-empty list/dict parentUuid raises uncaught TypeError in session chain builders, killing the whole read

  buggood first issue
  anthropics/claude-agent-sdk-python#1507 · Filter by author kriptmwan opened on Nov 14, 2026

• fork_session hangs forever on a cyclic parentUuid chain (no cycle guard in _build_fork_lines)

  buggood first issue
  anthropics/claude-agent-sdk-python#1506 · Filter by author kriptmwan opened on Nov 14, 2026

• @tool handler result with "isError": True is reported to Claude as a success

  bugclaude-code-assisteddocumentation
  anthropics/claude-agent-sdk-python#1492 · Filter by author YusefSyed opened on Nov 11, 2026

• Session lite reader and summary fold disagree on late isSidechain flags

  bug
  anthropics/claude-agent-sdk-python#1488 · Filter by author senanurcetin opened on Nov 10, 2026
  1

• Subscription (Max) usage via the Agent SDK appears to be counted faster than interactive use — not disclosed

  documentationquestion
  anthropics/claude-agent-sdk-python#1470 · Filter by author jyongchul opened on Nov 4, 2026

• Expose parent_tool_use_id on tool-lifecycle hook inputs for subagent tool calls

  enhancement
  anthropics/claude-agent-sdk-python#1469 · Filter by author hachons opened on Nov 3, 2026
  1

• Resuming a session whose background tasks died with the CLI emits an empty ResultMessage (num_turns=0) before the new turn; receive_response() returns on it, and the unread turn can starve hook callbacks

  bug
  anthropics/claude-agent-sdk-python#1463 · Filter by author Digital3D opened on Oct 31, 2026
  1

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  invalid
  anthropics/claude-agent-sdk-python#1458 · Filter by author 9dv96787rs-boop opened on Oct 29, 2026

• Windows restricted execution: SDK connect fails with WinError 5; standalone asyncio pipe fails at client CreateFile

  documentationquestion
  anthropics/claude-agent-sdk-python#1457 · Filter by author Rose-fly opened on Oct 29, 2026

• Feature: read the full session history, including messages before a compaction

  enhancement
  anthropics/claude-agent-sdk-python#1454 · Filter by author JeffreyNL opened on Oct 28, 2026

• create_sdk_mcp_server raises RecursionError for a self-referencing TypedDict input_schema

  bug
  anthropics/claude-agent-sdk-python#1448 · Filter by author AkshayShah03 opened on Oct 26, 2026

• ClaudeSDKClient.disconnect() from another task makes an active reader raise ClosedResourceError and lose buffered messages

  bug
  anthropics/claude-agent-sdk-python#1447 · Filter by author AkshayShah03 opened on Oct 26, 2026