# NousResearch/hermes-agent · Plugin handler kwargs filtering bug and fixes

## Open now

- Nothing open on GitHub.

A bug in registry.dispatch causes crashes when unexpected keyword arguments (such as task_id) are spread to plugin handlers that don't accept **kwargs. The related members propose fixes to filter or tolerate such mismatched kwargs.

## TL;DR

- 5 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 3 PR(s) closed without merging.
- A fix was merged to main in PR #118842. Verify it addresses your case.
- **Recommended:** read PR #118842 (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-118842`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.40`: 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

- #68318: \[Bug\]: v0.19.0 plugin handlers crash — unexpected task_id kwarg (registry.dispatch spreads kwargs to handler)

## Prior & competing PRs

- **#118842: Provider-plugin contracts: chronos no longer eagerly loaded, narrow plugin tool handlers survive dispatch, -q wires _cli_ref, builtin memory sentinel, context-engine clone/user-dir (#62951 #68318 #67597 #75647 #115113 #99640 #61839)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `agent/agent_init.py`, `agent/context_engine.py`, `agent/memory_provider.py`, `hermes_cli/cli_single_query.py`, `hermes_cli/doctor_state.py`, `hermes_cli/memory_provider_migration.py`, `hermes_cli/plugins_discovery.py`, `hermes_cli/plugins_manifest.py`, `hermes_cli/update_cmd_deps.py`, `hermes_cli/web_server_memory.py`, `plugins/context_engine/__init__.py`, `tests/agent/test_context_engine.py`, `tests/agent/test_plugin_context_engine_clone.py`, `tests/hermes_cli/test_memory_provider_core_sentinels.py`, `tests/hermes_cli/test_plugins.py`, `tests/hermes_cli/test_single_query_plugin_cli_ref.py`, `tests/plugins/test_context_engine_user_dir.py`, `tests/tools/test_registry.py`, `tools/registry.py`, `website/docs/developer-guide/context-engine-plugin.md` (+1 more)
- **#22146: fix(registry): tolerate plugin handlers without **kw**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `913c045c53`, `#118842`, `#68318`
- **#68398: fix(registry): filter kwargs for plugin handlers that don't accept **kwargs**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#22146`, `#22146`
- **#68636: fix(registry): filter kwargs to handler signature in dispatch() (#68318)**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `913c045c53`, `#118842`, `#68318`

## Fix status

- Merged to main in PR #118842 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-22`.
- Subsystem: `agent`