# NousResearch/hermes-agent · Checkpoint size-cap GC timing and performance issues

## Open now

- Nothing open on GitHub.

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.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #112063. Verify it addresses your case.
- **Recommended:** read PR #112063 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.67`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #79334: Checkpoint size-cap enforcement repeatedly rewrites all ref chains before GC

## Prior & competing PRs

- **#112063: Checkpoint store gc no longer stalls tool calls, gateway startup or hermes update (refs #79334, supersedes #79335, #111980)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `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`
- **#79335: fix: defer checkpoint size-cap maintenance**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `804707bea620b`, `#112063`, `#79334`

## Fix status

- Merged to main in PR #112063 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-15`.
- Subsystem: `agent`