# NousResearch/hermes-agent · Performance fixes for registry and agent hot paths

## Open now

- Nothing open on GitHub.

These issues and PRs address inefficient operations in tool registry lookups and agent hot paths, including unnecessary full-registry copies on single-tool lookups and quadratic or per-character work in frequently executed code.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #120406. Verify it addresses your case.
- **Recommended:** read PR #120406 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-120406`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.50`: the share of member 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.

## Closed / duplicate issues

- #106062: perf(tools): get_entry copies the full registry for every single-tool lookup

## Prior & competing PRs

- **#120406: perf(agent): remove quadratic and per-character work from agent hot paths**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - 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`
- **#106076: perf(tools): resolve registry entries without copying all tools**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#120406`
- **#106092: perf(tools): resolve get_entry with two O(1) lookups, not a registry copy (#106062)**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#120406`, `#106076`

## Fix status

- Merged to main in PR #120406 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-23`.