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NousResearch/hermes-agent

Tool schema combinator compatibility fixes across AI APIs

Cluster 64587 · agent. Data as of

Nothing open on GitHub. Fix merged in #64623 on 28 Jul 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 #64623. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this resolved, deciding PR #64623. That is separate from the fix event.
Still open
Nothing open on GitHub.

Multiple bugs and fixes related to tool/function schemas using top-level combinators (anyOf, allOf, oneOf) that are rejected by OpenAI, Anthropic, and Codex APIs. A recurring concern is the schema sanitizer stripping or corrupting valid properties like dependentRequired while attempting to normalize schemas.

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.

  • #64623 fix(schema): preserve dependentRequired property names

    merged to main

    files: tests/tools/test_schema_sanitizer.py, tools/schema_sanitizer.py

2 PRs closed without merging

From the close comments: duplicate 1 · superseded by another PR 1

  • #64667 fix(tools): preserve dependentRequired in schema sanitizer (#64587) · duplicate → #64623
  • #64928 fix(tools): preserve dependentRequired in schema sanitizer (#64587) · superseded by another PR → #64623
Closed issues · 1
  • Closed#64587fix(tools): schema sanitizer corrupts dependentRequired on MCP tools (HTTP 400)
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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
#64623
Closed issues
1
Attempts
2 PRs closed without merging
Fix link checked
28 Jul 2026

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