{"repo":"NousResearch/hermes-agent","public_id":"84857","display_label":"Tool output dedup state lost after context compaction","summary":"These issues and fixes concern tool outputs (especially read_file) being re-sent repeatedly after context compaction, because deduplication state is not preserved across compaction boundaries. The work addresses tracking and restoring that state to avoid redundant cache reads.","subsystem":"agent","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":101648,"merged_at":"2026-09-02T21:37:38+00:00"},"resolution":{"state":"unresolved","by":null},"freshness":{"state":"verified","last_verified_at":"2026-09-02T21:37:38+00:00","is_stale":false},"grouping":{"backbone":"STRUCTURAL_SPANNING","link_density":0.6666666666666666},"fix_edges":[{"issue_number":84857,"pr_number":101648,"tier":"verified","basis":"superseded_ref","confidence":0.9,"recoverable_from_timeline":false,"pr_merged_at":"2026-09-02T21:37:38+00:00"}],"members":[{"kind":"issue","number":84857,"title":"Tool outputs re-sent every turn → cache_read ~16× input; read_file dedup state lost across context compaction","url":null,"state":"closed"},{"kind":"pr","number":84892,"title":"fix(agent): preserve tool-output dedup state across context compaction","url":null,"state":"closed","close_reason":{"refs":[{"kind":"pr","value":"#34","number":34},{"kind":"pr","value":"#101648","number":101648}],"category":"merged_via","implication":"superseded"},"merged":false},{"kind":"pr","number":101648,"title":"fix(tools): one full read_file recovery per compaction generation, then dedup stubs (salvage #84892)","url":null,"state":"merged","close_reason":{"category":"merged"},"merged":true,"is_fix_pr":true,"fix_tier":"verified","files_changed":["agent/conversation_compression.py","tests/tools/test_file_read_guards.py","tools/file_tools.py"]}],"trust":{"default_tier":"verified","includes_suggested":false}}