{"repo":"NousResearch/hermes-agent","public_id":"111952","display_label":"Fix recursive error traversal in MCP connection errors","summary":"These items address a RecursionError caused by unbounded traversal of cyclic exception chains when a stdio MCP server binary is missing. The fix bounds the nested connection error walk so the real underlying error is reported instead.","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":112200,"merged_at":"2026-09-16T02:02:40+00:00"},"resolution":{"state":"resolved","by":"pr-112200"},"freshness":{"state":"verified","last_verified_at":"2026-09-16T02:02:40+00:00","is_stale":false},"grouping":{"backbone":"STRUCTURAL_SPANNING","link_density":0.6666666666666666},"fix_edges":[{"issue_number":111952,"pr_number":112200,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true,"pr_merged_at":"2026-09-16T02:02:40+00:00"},{"issue_number":111997,"pr_number":112200,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true,"pr_merged_at":"2026-09-16T02:02:40+00:00"}],"members":[{"kind":"issue","number":111952,"title":"hermes mcp test: RecursionError (unbounded exception-chain walk) when a stdio server's binary is missing","url":null,"state":"closed"},{"kind":"pr","number":111961,"title":"fix(mcp): bound nested connection error traversal","url":null,"state":"closed","close_reason":{"refs":[{"kind":"commit","value":"4b1215be2f","number":0},{"kind":"pr","value":"#112200","number":112200}],"category":"merged_via","implication":"superseded"},"merged":false},{"kind":"pr","number":112200,"title":"fix(mcp): hermes mcp test reports the real connect error instead of RecursionError on cyclic exception chains (#111952, #111997, salvage #111961)","url":null,"state":"merged","close_reason":{"category":"merged"},"merged":true,"is_fix_pr":true,"fix_tier":"verified","files_changed":["contributors/emails/205820855+MrMongstad@users.noreply.github.com","tests/tools/test_mcp_tool_errors.py","tests/tools/test_mcp_tool_session_expired.py","tools/mcp_tool_errors.py"]}],"trust":{"default_tier":"verified","includes_suggested":false}}