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NousResearch/hermes-agent

Quadratic performance issues in MoA and agent paths

Cluster 77063 · agent. Data as of

Nothing open on GitHub. Fix merged in #120406 on 23 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 #120406. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this resolved, deciding PR #120406. That is separate from the fix event.
Still open
Nothing open on GitHub.

These items address O(n²) and other inefficient repeated computations in the MoA reference trim logic and agent hot paths. The work involves replacing per-pop and per-character recalculations with single-pass or amortized approaches.

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.

  • #120406 perf(agent): remove quadratic and per-character work from agent hot paths

    merged to main

    files: agent/agent_runtime_helpers.py, agent/codex_responses_adapter.py, agent/message_sanitization.py, agent/moa_loop.py, agent/prompt_caching.py, agent/redact.py, contributors/emails/[redacted:email], contributors/emails/[redacted:email], tests/agent/test_moa_loop_mode.py, tests/agent/test_prompt_caching.py, tests/agent/test_redact.py, tests/tools/test_registry.py, tools/registry.py

1 PR closed without merging

From the close comments: merged via another change 1

  • #77064 perf(moa): weigh reference trim once per message instead of re-estimating per pop · merged via another change → #120406
Closed issues · 1
  • Closed#77063[Bug]: MoA reference trim re-estimates the full message list after every pop (O(n^2) on long histories)
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

Subsystem
agent
Merged PRs
#120406
Closed issues
1
Attempts
1 PR closed without merging
Fix link checked
23 Sep 2026

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