Cairn
NousResearch/hermes-agent

Session DB message duplication and compression rollback fixes

Cluster 99477. Data as of

Nothing open on GitHub. Fix merged in #100427 on 1 Sep 2026. Check it covers your case.

The short answer

0open issues
0open PRs
4items grouped
Known?
Yes. 4 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #100427. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this resolved, deciding PR #100427. That is separate from the fix event.
Still open
Nothing open on GitHub.

These items address a bug causing exponential message duplication in the session database when compression interrupts queued drains, along with fixes to roll back the live transcript when an in-place compaction commit fails. Includes a defense-in-depth deduplication backstop as a secondary safeguard.

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.

  • #100427 fix(compression): roll the live transcript back when an in-place compaction commit fails (#99477)

    merged to main

    files: agent/conversation_compression.py, tests/run_agent/test_in_place_commit_rollback_99477.py

2 PRs closed without merging

From the close comments: done elsewhere 1 · other 1

  • #99822 fix(compression): roll the live transcript back when an in-place compaction commit fails (#99477) · done elsewhere → #100427, #99477
  • #99899 fix(agent): defense-in-depth content dedup in session-DB flush (backstop for #99477) · other → #98997, #99822, #99912
Closed issues · 1
  • Closed#99477[Bug]: Exponential message duplication in session DB when compression interrupts queued follow-up drain
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 0.50: 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.

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At a glance

Merged PRs
#100427
Closed issues
1
Attempts
2 PRs closed without merging
Fix link checked
1 Sep 2026

For your agent

The same facts, typed.

cluster/99477.json
cluster/99477.md