[Bug] Claude Code Review process hangs indefinitely without timeout

Related Claude Code issues

Matched on shared title terms, labels, topic and reported release — ranked so issues with real discussion come first.

• Agent/subagent freezes indefinitely on Opus 4.6 — no timeout, no error, no recovery
  Resolved 💬 6 v2.1.63 #37521
• Plugin MCP tools hang indefinitely with no timeout or error
  Resolved 💬 2 v2.1.89 #43342
• [Bug] MCP tool call wedges indefinitely without client-side timeout (CLI, no MCP_TOOL_TIMEOUT default)
  Resolved 💬 3 v2.1.181 #69487
• WebFetch tool has no timeout — can hang indefinitely, stalling sessions
  Resolved 💬 2 #35426
• HTTP-transport MCP tool call hangs indefinitely (no client-side timeout)
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• [BUG] Claude Code hangs indefinitely when API streaming connection stalls (no read timeout)
  Resolved 💬 37 v2.1.42 #25979
• [Bug] Code Review check runs stuck in progress indefinitely on Anthropic API
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• [BUG] MCP per-server timeout not enforced on individual tool calls (stdio hangs indefinitely)
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Same class of failure, ranked by community engagement — this issue is one of many, so it may not appear in the visible list: MCP server connection issues, Crashes, hangs & freezes

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