# NousResearch/hermes-agent · Fix dict mutation during iteration in file state

## Open now

- 1 issue, 3 PRs open on GitHub.
- #36643: Dictionary cap helpers should not mutate dicts during active iteration
- PR #36695: fix(file): avoid mutating dict caps during iteration
- PR #36696: fix(file-state): snapshot keys before mutating in _cap_dict
- PR #36829: fix: snapshot dict cap evictions

These issues and pull requests address a bug where dictionary cap helpers mutate or evict entries while iterating over them. The fixes involve snapshotting keys or caps before performing mutations to avoid unsafe concurrent modification.

## TL;DR

- 4 member(s): 1 open issue(s), 0 closed issue(s), 3 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.50`: 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.

## Open related issues

- #36643: Dictionary cap helpers should not mutate dicts during active iteration

## Prior & competing PRs

- **#36695: fix(file): avoid mutating dict caps during iteration**. open
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#36696`, `#36696`
  - files: `tests/tools/test_accretion_caps.py`, `tools/file_state.py`, `tools/file_tools.py`
- **#36696: fix(file-state): snapshot keys before mutating in _cap_dict**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `tests/tools/test_file_state_registry.py`, `tools/file_state.py`
- **#36829: fix: snapshot dict cap evictions**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `tests/tools/test_accretion_caps.py`, `tools/file_state.py`, `tools/file_tools.py`

## Fix status

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