# NousResearch/hermes-agent · Snapshot plugin registries before iteration to avoid concurrent modification

## Open now

- 1 issue, 2 PRs open on GitHub.
- #137439: Issue 3 — plugin registration iterates \`manager._plugins\` without a snapshot → "dictionary changed size during iteration"
- PR #137441: fix(plugins): snapshot concurrent registry reads
- PR #137711: fix(plugins): take a list snapshot before iterating the plugin registries (#137439)

One issue reports a "dictionary changed size during iteration" error when plugin registration iterates \`manager._plugins\` without a snapshot. Two pull requests propose taking a list snapshot before iterating the plugin registries; the titles alone do not show whether they were merged or whether the problem is fixed.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 2 open PR(s), 0 merged PR(s), 0 PR(s) closed without merging.
- No fix has been merged to main; one or more PRs were attempted (see below).
- **Recommended:** review the prior/competing PR(s) below. A fix was attempted but not merged; your case may extend or revive that work.

## 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.67`: 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.

## Open related issues

- #137439: Issue 3 — plugin registration iterates \`manager._plugins\` without a snapshot → "dictionary changed size during iteration"

## Prior & competing PRs

- **#137441: fix(plugins): snapshot concurrent registry reads**. open
  - maintainer direction: category `silent_close`; implication `active`
  - files: `hermes_cli/plugins.py`, `tests/hermes_cli/test_plugins.py`
- **#137711: fix(plugins): take a list snapshot before iterating the plugin registries (#137439)**. open
  - maintainer direction: category `silent_close`; implication `active`
  - files: `hermes_cli/plugins.py`, `tests/hermes_cli/test_plugins_dict_iteration_snapshot.py`

## Fix status

- No merged fix on record.
- Subsystem: `hermes_cli`