NousResearch/hermes-agent

Context compressor index clamping and bounds fixes

Cluster 75588. Data as of 2026-10-25 11:21 UTC

Nothing open on GitHub. Fix merged in #75884 on 1 Aug 2026. Check it covers your case.

open issues

open PRs

items grouped

Known?: Yes. 4 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #75884. Check it covers your case. No release data is tracked.
Tracker: The maintainers' tracker marks this resolved, deciding PR #75884. That is separate from the fix event.
Still open: Nothing open on GitHub.

Next step: read #75884, then check it covers your case.

Read #75884 Pick up a Lab task

These issues and pull requests address out-of-range index errors in the context compressor, focusing on clamping tail-cut and summary-scan boundaries to prevent IndexError conditions. Related fixes also touch failure cooldown persistence and query/token handling within the compression logic.

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.

#75884 fix(compression): index clamps, persisted failure cooldown, user-query preservation, thinking-token estimates

merged to main

files: agent/context_compressor.py, agent/model_metadata.py, contributors/emails/[redacted:email], gateway/run.py, tests/agent/test_budget_reasoning_details_exclusion.py, tests/agent/test_compressor_tail_cut_oob_fix.py, tests/agent/test_compressor_zero_user_guard.py, tests/gateway/test_session_hygiene.py

2 PRs closed without merging

From the close comments: duplicate 1 · merged via another change 1

#75604 fix(agent): clamp tail-cut boundary and summary-scan indices to prevent IndexError · merged via another change → #75884, #75588
#75635 fix(context-compressor): clamp out-of-range tail-cut and summary-scan bounds (#75588) · duplicate → #75604, #75588

Closed issues · 1

Closed#75588[Bug] Short tool-only suffix can make context compressor scan past messages

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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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.

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

Merged PRs: #75884
Closed issues: 1
Attempts: 2 PRs closed without merging
Fix link checked: 1 Aug 2026

For your agent

The same facts, typed.

cluster/75588.json
cluster/75588.md