{"repo":"NousResearch/hermes-agent","public_id":"72439","display_label":"ACP session model validation and error reporting","summary":"These items address a bug where invalid model IDs were silently accepted in ACP session/set_model, and introduce fixes to properly reject invalid selections and surface meaningful error causes.","subsystem":"acp","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":115810,"merged_at":"2026-09-19T18:08:54+00:00"},"resolution":{"state":"resolved","by":"pr-115810"},"freshness":{"state":"verified","last_verified_at":"2026-09-19T18:08:54+00:00","is_stale":false},"grouping":{"backbone":"STRUCTURAL_SPANNING","link_density":0.6666666666666666},"fix_edges":[{"issue_number":72439,"pr_number":115810,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true,"pr_merged_at":"2026-09-19T18:08:54+00:00"},{"issue_number":91090,"pr_number":115810,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true,"pr_merged_at":"2026-09-19T18:08:54+00:00"}],"members":[{"kind":"issue","number":72439,"title":"[Bug]: ACP session/set_model accepts any model ID, and the next turn fails as a silent end_turn","url":null,"state":"closed"},{"kind":"pr","number":72579,"title":"fix(acp): reject invalid session model selections","url":null,"state":"closed","close_reason":{"refs":[{"kind":"commit","value":"d45fd1aa31e5","number":0},{"kind":"pr","value":"#115810","number":115810},{"kind":"pr","value":"#72439","number":72439},{"kind":"pr","value":"#91090","number":91090},{"kind":"pr","value":"#72579","number":72579}],"category":"merged_via","implication":"superseded"},"merged":false},{"kind":"pr","number":115810,"title":"fix(acp): rejected session/set_model reports invalid params and a failed rebuild keeps the session and shows its real cause (#72439, #91090, salvage #72579)","url":null,"state":"merged","close_reason":{"category":"merged"},"merged":true,"is_fix_pr":true,"fix_tier":"verified","files_changed":["acp_adapter/server.py","acp_adapter/session.py","tests/acp_adapter/test_acp_dashboard_model_switch_validation.py","tests/acp_adapter/test_session.py"]}],"trust":{"default_tier":"verified","includes_suggested":false}}