{"repo":"NousResearch/hermes-agent","public_id":"94335","display_label":"Inverted stdio MCP liveness check bug and fix","summary":"A bug where the `_stdio_children_dead()` function had an inverted liveness check, causing every stdio MCP call to fail-fast in oneshot sessions. The members cover the bug report and a corresponding fix.","subsystem":null,"counts":{"members":3,"open_issues":0,"open_issues_distinct":0,"open_prs":0,"closed_issues":1,"merged_prs":1,"attempt_prs":1},"landed_fix":{"status":"merged_to_main","basis":"structural","pr":94339,"merged_at":"2026-08-27T08:38:20+00:00"},"resolution":{"state":"resolved","by":"pr-94339"},"freshness":{"state":"verified","last_verified_at":"2026-08-27T08:38:20+00:00","is_stale":false},"grouping":{"backbone":"STRUCTURAL_SPANNING","link_density":0.6666666666666666},"fix_edges":[{"issue_number":94143,"pr_number":94339,"tier":"verified","basis":"superseded_ref","confidence":0.9,"recoverable_from_timeline":false,"pr_merged_at":"2026-08-27T08:38:20+00:00"},{"issue_number":94335,"pr_number":94339,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true,"pr_merged_at":"2026-08-27T08:38:20+00:00"},{"issue_number":94637,"pr_number":94339,"tier":"verified","basis":"superseded_ref","confidence":0.9,"recoverable_from_timeline":false,"pr_merged_at":"2026-08-27T08:38:20+00:00"},{"issue_number":95270,"pr_number":94339,"tier":"verified","basis":"superseded_ref","confidence":0.9,"recoverable_from_timeline":false,"pr_merged_at":"2026-08-27T08:38:20+00:00"},{"issue_number":95395,"pr_number":94339,"tier":"verified","basis":"superseded_ref","confidence":0.9,"recoverable_from_timeline":false,"pr_merged_at":"2026-08-27T08:38:20+00:00"},{"issue_number":95668,"pr_number":94339,"tier":"verified","basis":"superseded_ref","confidence":0.9,"recoverable_from_timeline":false,"pr_merged_at":"2026-08-27T08:38:20+00:00"}],"members":[{"kind":"issue","number":94335,"title":"[Bug] _stdio_children_dead() inverted liveness check fail-fasts every stdio MCP call in oneshot (-z) sessions","url":null,"state":"closed"},{"kind":"pr","number":94339,"title":"fix(mcp): un-invert the stdio children liveness check","url":null,"state":"merged","close_reason":{"category":"merged"},"merged":true,"is_fix_pr":true,"fix_tier":"verified","files_changed":["tests/tools/test_mcp_stdio_children_dead.py","tools/mcp_tool.py"]},{"kind":"pr","number":95144,"title":"fix(mcp): correct inverted liveness check in _stdio_children_dead (#94335)","url":null,"state":"closed","close_reason":{"refs":[{"kind":"pr","value":"#94339","number":94339}],"category":"duplicate_of","implication":"duplicate"},"merged":false}],"trust":{"default_tier":"verified","includes_suggested":false}}