NousResearch/hermes-agent

Compression wedge bug with oversized session history

Cluster 131412. Data as of 2026-10-27 11:58 UTC

Nothing open on GitHub. Fix merged in #132160 on 3 Oct 2026. Check it covers your case.

open issues

open PRs

items grouped

Known?: Yes. 3 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #132160. Check it covers your case. No release data is tracked.
Tracker: The maintainers' tracker marks this resolved, deciding PR #132160. That is separate from the fix event.
Still open: Nothing open on GitHub.

Next step: read #132160, then check it covers your case.

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These items address a bug where compression stalls on long tool-only or oversized sessions because the assistant tail anchor is unbounded, causing middle_window_tokens to stay at zero and leaving no compressible history.

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.

#132160 Compression no longer wedges on a long tool-only turn (#131412, salvage #131445)

merged to main

files: agent/context_compressor.py, tests/agent/test_split_turn_compaction.py

1 PR closed without merging

From the close comments: merged via another change 1

#131445 fix(compression): bound the assistant tail anchor by the soft ceiling (#131412) · merged via another change → bd0affe, #131412, #29824

Closed issues · 1

Closed#131412[Bug]: [Bug]: Current main cannot compact oversized openai-codex session — middle_window_tokens stays 0 and protected tail consumes all compressible history

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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

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At a glance

Merged PRs: #132160
Closed issues: 1
Attempts: 1 PR closed without merging
Fix link checked: 3 Oct 2026

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