{"repo":"NousResearch/hermes-agent","public_id":"95137","display_label":"Responses API history duplication bug and fix","summary":"A bug in the API server causes chained conversation turns via previous_response_id to duplicate the entire message history on each turn, traced to a prefix-matching check that never matches. The members cover the bug report and related fixes addressing message identity and turn-start indexing logic.","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":115857,"merged_at":"2026-09-19T18:11:48+00:00"},"resolution":{"state":"resolved","by":"pr-115857"},"freshness":{"state":"verified","last_verified_at":"2026-09-19T18:11:48+00:00","is_stale":false},"grouping":{"backbone":"STRUCTURAL_SPANNING","link_density":0.6666666666666666},"fix_edges":[{"issue_number":82513,"pr_number":115857,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true,"pr_merged_at":"2026-09-19T18:11:48+00:00"},{"issue_number":95137,"pr_number":115857,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true,"pr_merged_at":"2026-09-19T18:11:48+00:00"},{"issue_number":101644,"pr_number":115857,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true,"pr_merged_at":"2026-09-19T18:11:48+00:00"}],"members":[{"kind":"issue","number":95137,"title":"Responses API: previous_response_id/conversation chaining duplicates entire history every turn (dict-== prefix check in _response_messages_turn_start_index never matches)","url":null,"state":"closed"},{"kind":"pr","number":95138,"title":"fix(api-server): match the turn-start prefix on normalized message identity","url":null,"state":"closed","close_reason":{"refs":[{"kind":"pr","value":"#70695","number":70695}],"category":"superseded_by_pr","implication":"superseded"},"merged":false},{"kind":"pr","number":115857,"title":"fix(api-server): chained /v1/responses turns store each message once instead of doubling history every turn (#95137, #101644, salvage #85678)","url":null,"state":"merged","close_reason":{"category":"merged"},"merged":true,"is_fix_pr":true,"fix_tier":"verified","files_changed":["contributors/emails/[redacted:email]","gateway/platforms/api_server.py","gateway/platforms/api_server_openai_routes.py","hermes_cli/config_defaults.py","tests/gateway/test_api_server_responses_history_cap.py","tests/gateway/test_api_server_responses_history_dedupe.py","website/docs/user-guide/features/api-server.md"]}],"trust":{"default_tier":"verified","includes_suggested":false}}