# NousResearch/hermes-agent · Anthropic fast mode speed parameter routing fix

## Open now

- Nothing open on GitHub.

A bug was identified where Anthropic fast mode passed a speed parameter as an unsupported top-level SDK keyword argument. Multiple fix attempts address routing it correctly via extra_body instead.

## 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 #9416. Verify it addresses your case.
- **Recommended:** read PR #9416 (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-9416`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #9212: \[Bug\]: Anthropic fast mode passes speed as unsupported top-level SDK kwarg

## Prior & competing PRs

- **#9213: fix(anthropic): send fast mode speed via extra_body**. closed without merge · fix tier `suggested`
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#9216`
  - _suggested-tier fix detail withheld; re-request with `?tier=all` to include it._
- **#9416: fix(anthropic): send fast mode speed via extra_body**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/anthropic_adapter.py`, `tests/cli/test_fast_command.py`
- **#9216: fix(anthropic): send fast mode speed via extra_body**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#9416`

## Fix status

- Merged to main in PR #9416 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-04-14`. This confirmation is old and may be out of date (a revert/reopen would not have invalidated it here); re-verify.