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NousResearch/hermes-agent

Fix title generation failures on strict/reasoning models

Cluster 83390 · agent. Data as of

Nothing open on GitHub. Fix merged in #113966 on 17 Sep 2026. Check it covers your case.

The short answer

0open issues
0open PRs
4items grouped
Known?
Yes. 4 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #113966. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this resolved, deciding PR #113966. That is separate from the fix event.
Still open
Nothing open on GitHub.

These issues and fixes address auxiliary title generation breaking on DeepSeek and reasoning models due to unsupported structured output formats, HTTP 400 errors, and truncated or malformed responses. The work improves fallback handling and ensures titles are correctly derived from reasoning content.

Open issues0

No open issues.

Open PRs0

No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

  • #113960 fix(aux): session auto-titles land from reasoning_content and never store truncated JSON fragments (#82291, #83903, salvage #96122 #83985 #85424)

    merged to main

    files: agent/title_generator.py, tests/agent/test_title_generator.py

  • #113966 fix(aux): structured-output 400s no longer kill fallback candidates or cost a doomed first request on DeepSeek (#83390, #105191, salvage #92908)

    merged to main

    files: agent/auxiliary_client.py, agent/auxiliary_structured_output.py, plugins/model-providers/deepseek/__init__.py, providers/base.py, tests/agent/conftest.py, tests/agent/test_auxiliary_structured_output.py, website/docs/developer-guide/model-provider-plugin.md

1 PR closed without merging

From the close comments: done elsewhere 1

  • #85424 fix(agent): make title generation work for reasoning models and strict local providers · done elsewhere → eff1876, #113960
Closed issues · 1
  • Closed#83390Auxiliary title_generation fails on DeepSeek: HTTP 400 "This response_format type is unavailable now"
How this cluster was grouped
  • Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
  • Pairwise link density 0.50: the share of item 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.

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At a glance

Subsystem
agent
Merged PRs
#113960, #113966
Closed issues
1
Attempts
1 PR closed without merging
Fix link checked
17 Sep 2026

For your agent

The same facts, typed.

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