# NousResearch/hermes-agent · openai-codex provider empty response.output reports

## Open now

- Nothing open on GitHub.

Most members describe the openai-codex provider (notably with gpt-5.x models) returning an empty or malformed response.output, or a 'no output items' error, even when streamed text or tool-call events were delivered. One member is a code change proposing to use the terminal event response when the final response has empty output; the exact cause is not established across members.

## TL;DR

- 7 member(s): 0 open issue(s), 6 closed issue(s), 0 open PR(s), 0 merged PR(s), 1 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evidence (`STRUCTURAL_PARTIAL`): some members are connected by structural evidence (shared changed files, or a closing/superseded reference); the rest are joined by an automated relevance judgement over their text.
- Members outside that structural core may belong to a different underlying problem.
- Pairwise link density `0.20`: 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

- #5674: \[Bug\]: codex suddenly reporting "emtpy/malformed response"
- #5678: \[Bug\]: openai-codex provider fails with 'Responses API returned no output items' when output\[\] is empty but streaming delivered text (gpt-5.4)
- #5732: \[Bug\]: Codex Responses stream completes with empty output after tool-call events, forcing fallback
- #5736: \[Bug\] openai-codex provider returns empty response.output from agent loop on multiple gpt-5.x models (works in isolated direct call)
- #5879: openai-codex provider always returns response.output is empty — DEFAULT_CODEX_BASE_URL endpoint broken
- #5883: GPT-5.4 via openai-codex fails in normal mode with 'Empty/malformed response' fallback

## Prior & competing PRs

- **#6026: fix(codex): use terminal event response when get_final_response has empty output**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#5720`

## Fix status

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