# NousResearch/hermes-agent · Cache plugin compatibility scans to reduce overhead

## Open now

- Nothing open on GitHub.

These items address a performance problem where plugin compatibility rescans were running on every discovery pass, adding significant delay. The work involves caching scan results so unchanged plugins are not repeatedly re-parsed.

## 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 #112288. Verify it addresses your case.
- **Recommended:** read PR #112288 (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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #108362: \[Bug\]: plugin-compat rescan is forced on every discovery pass — ~7s of every ACP session/new (ast.parse over all non-bundled plugins)

## Prior & competing PRs

- **#112288: Multiplex gateway boot no longer re-scans every plugin's source per profile**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `hermes_cli/plugin_compat.py`, `tests/hermes_cli/test_plugin_compat_scan_cache.py`
- **#108372: fix(plugins): cache compatibility scans across discovery**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `416a8177c25`, `#108362`, `#112288`
- **#108374: fix(plugins): cache unchanged compatibility scans**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `416a8177c25`, `#108362`, `#112288`

## Fix status

- Merged to main in PR #112288 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-15`.