Summary

MCP child processes can leak when the TUI exits abnormally.

Acceptance criteria

• All stdio MCP servers receive SIGTERM on shutdown.
• Integration test verifies no zombies.

Files

crates/tui/src/mcp.rs shutdown path

Size

S

Source

Source tag: PRIOR. Add exact upstream/opencode source links during implementation if they are not already known. Do not copy external code blindly; port the behavior into this repo's architecture.

Filed from 2026-05-02 v0.8.8 intake.