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+---
+name: "Add process health monitoring and timeout to agent PTY sessions"
+---
+
+# Story 134: Add process health monitoring and timeout to agent PTY sessions
+
+## User Story
+
+As a user, I want hung or unresponsive agent processes to be detected and cleaned up automatically so that the system recovers without manual intervention.
+
+## Acceptance Criteria
+
+- [ ] The PTY read loop has a configurable inactivity timeout (default 5 minutes) — if no output is received within the timeout, the process is killed and the agent status set to Failed
+- [ ] A background watchdog task periodically checks that Running agents still have a live process, and marks orphaned entries as Failed
+- [ ] When an agent process is killed externally (e.g. SIGKILL), the agent status transitions to Failed within the timeout period rather than hanging indefinitely
+- [ ] A test demonstrates that a hung agent (no PTY output) is killed and marked Failed after the timeout
+- [ ] A test demonstrates that an externally killed agent is detected and cleaned up by the watchdog
+
+## Out of Scope
+
+- TBD