# NousResearch/hermes-agent · Copilot CLI deprecation and 8K token limit errors

## Open now

- Nothing open on GitHub.

A bug report and two fix attempts addressing detection of deprecated gh-copilot CLI in ACP mode and improved handling of HTTP 413 errors from the GitHub Models endpoint when the 8K token cap is exceeded.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #26845. Verify it addresses your case.
- **Recommended:** read PR #26845 (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-26845`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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.

## Closed / duplicate issues

- #10648: \[Bug\]: GitHub Copilot ACP mode fails due to deprecated gh-copilot CLI, and GitHub Models endpoint hits 8K token limit (HTTP 413)

## Prior & competing PRs

- **#26845: fix(copilot-acp): salvage #10685 — tighter deprecation detection + sharper 8K-cap hint (closes #10648)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/copilot_acp_client.py`, `agent/model_metadata.py`, `hermes_cli/models.py`, `run_agent.py`, `tests/agent/test_copilot_acp_deprecation.py`
- **#10685: fix: detect gh-copilot deprecation and improve GitHub Models 413 errors**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `4ded3ede3`, `b85b938b1`, `374dc81c2`, `#26845`, `#10648`

## Fix status

- Merged to main in PR #26845 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-05-16`.