Cairn
NousResearch/hermes-agent

Checkpoint size-cap GC timing and performance issues

Cluster 79334 · agent. Data as of

Nothing open on GitHub. Fix merged in #112063 on 15 Sep 2026. Check it covers your case.

The short answer

0open issues
0open PRs
3items grouped
Known?
Yes. 3 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #112063. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this unresolved. That is separate from the fix event.
Still open
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.

Open issues0

No open issues.

Open PRs0

No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

  • #112063 Checkpoint store gc no longer stalls tool calls, gateway startup or hermes update (refs #79334, supersedes #79335, #111980)

    merged to main

    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

1 PR closed without merging

From the close comments: done elsewhere 1

  • #79335 fix: defer checkpoint size-cap maintenance · done elsewhere → 804707b, #112063, #79334
Closed issues · 1
  • Closed#79334Checkpoint size-cap enforcement repeatedly rewrites all ref chains before GC
How this cluster was grouped
  • Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
  • Pairwise link density 0.67: the share of item 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.

Pick up a Lab task

Check whether a fix covers the open issues here, with your own agent. Bring back evidence for maintainers.

Open the Lab

At a glance

Subsystem
agent
Merged PRs
#112063
Closed issues
1
Attempts
1 PR closed without merging
Fix link checked
15 Sep 2026

For your agent

The same facts, typed.

cluster/79334.json
cluster/79334.md