{"repo":"NousResearch/hermes-agent","public_id":"79334","display_label":"Checkpoint size-cap GC timing and performance issues","summary":"These items concern a problem where checkpoint size-cap enforcement was triggering repeated rewriting of ref chains before garbage collection, causing stalls during tool calls, gateway startup, and Hermes updates. The work involves deferring size-cap maintenance to avoid these blocking behaviors.","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":112063,"merged_at":"2026-09-15T17:57:17+00:00"},"resolution":{"state":"unresolved","by":null},"freshness":{"state":"verified","last_verified_at":"2026-09-15T17:57:17+00:00","is_stale":false},"grouping":{"backbone":"STRUCTURAL_SPANNING","link_density":0.6666666666666666},"fix_edges":[{"issue_number":79334,"pr_number":112063,"tier":"verified","basis":"superseded_ref","confidence":0.9,"recoverable_from_timeline":false,"pr_merged_at":"2026-09-15T17:57:17+00:00"},{"issue_number":111092,"pr_number":112063,"tier":"verified","basis":"superseded_ref","confidence":0.9,"recoverable_from_timeline":false,"pr_merged_at":"2026-09-15T17:57:17+00:00"}],"members":[{"kind":"issue","number":79334,"title":"Checkpoint size-cap enforcement repeatedly rewrites all ref chains before GC","url":null,"state":"closed"},{"kind":"pr","number":79335,"title":"fix: defer checkpoint size-cap maintenance","url":null,"state":"closed","close_reason":{"refs":[{"kind":"commit","value":"804707bea620b","number":0},{"kind":"pr","value":"#112063","number":112063},{"kind":"pr","value":"#79334","number":79334}],"category":"implemented_elsewhere","implication":"superseded"},"merged":false},{"kind":"pr","number":112063,"title":"Checkpoint store gc no longer stalls tool calls, gateway startup or hermes update (refs #79334, supersedes #79335, #111980)","url":null,"state":"merged","close_reason":{"category":"merged"},"merged":true,"is_fix_pr":true,"fix_tier":"verified","files_changed":["cli.py","gateway/run.py","hermes_cli/config_defaults.py","tests/gateway/test_checkpoint_prune_housekeeping.py","tests/tools/test_checkpoint_manager.py","tools/checkpoint_manager.py","website/docs/user-guide/checkpoints-and-rollback.md"]}],"trust":{"default_tier":"verified","includes_suggested":false}}