# NousResearch/hermes-agent · Reducing first-token startup latency optimizations

## Open now

- Nothing open on GitHub.

A cluster of performance work focused on cutting time-to-first-token by reducing pre-request startup overhead, memoizing tool definitions, and deduplicating tool availability checks during schema building.

## TL;DR

- 5 member(s): 0 open issue(s), 2 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 #3395. Verify it addresses your case.
- **Recommended:** read PR #3395 (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: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_PARTIAL`): some members are connected by structural evidence (shared changed files, or a closing/superseded reference); the rest are joined by an automated relevance judgement over their text.
- Members outside that structural core may belong to a different underlying problem.
- Pairwise link density `0.34`: 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

- #3336: \[superseded\] perf(ttft): dedupe shared tool availability checks during schema build
- #3348: perf(ttft): dedupe shared tool availability checks during schema build

## Prior & competing PRs

- **#3345: perf(ttft): reduce pre-request startup overhead**. closed without merge · fix tier `suggested`
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#3361`, `#3348`, `#3362`, `#3349`, `#3363`, `#3350`, `#3364`, `#3351`, `#3365`, `#3353`, `#3366`, `#3352`, `#3354`, `#3367`, `#3355`
  - _suggested-tier fix detail withheld; re-request with `?tier=all` to include it._
- **#3395: perf(ttft): salvage easy-win startup optimizations from #3346**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `agent/anthropic_adapter.py`, `agent/auxiliary_client.py`, `run_agent.py`, `tests/agent/test_auxiliary_client.py`, `tests/test_run_agent.py`, `tests/tools/test_registry.py`, `tools/registry.py`
- **#3361: perf(ttft): dedupe shared tool availability checks**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#3395`

## Fix status

- Merged to main in PR #3395 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-03-27`. This confirmation is old and may be out of date (a revert/reopen would not have invalidated it here); re-verify.
- Subsystem: `agent`