Nothing open on GitHub. Fix merged in #104897 on 7 Sep 2026. Check it covers your case.
The short answer
0open issues
0open PRs
3items grouped
- Known?
- Yes. 3 related items grouped here, 1 issue already closed.
- Fix event
- A fix was merged to main in PR #104897. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
resolved, deciding PR #104897. That is separate from the fix event. - Still open
- Nothing open on GitHub.
These issues and fixes address a bug where boolean 'required' flags appearing inside MCP tool property schemas caused 400 errors on strict OpenAI-compatible providers. The fix removes these non-standard flags to produce valid tool schemas.
Open issues0
Open PRs0
Fixes on record
-
#104897 fix: boolean required flags no longer invalidate tool schemas
files:
tests/tools/test_schema_boolean_required.py,tools/schema_sanitizer.py
1 PR closed without merging
From the close comments: superseded by another PR 1
-
#104831 fix(mcp): drop non-schema boolean "required" flags from MCP property schemas · superseded by another PR →
8aaf1ac,#104796,#104897
Closed issues · 1
- Closed#104796[Bug]: FastAPI-style boolean "required" flags inside MCP tool property schemas 400 the whole request on strict OpenAI-compatible providers
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structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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
0.67: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36.1.00means every pair is linked.
Pick up a Lab task
Check whether a fix covers the open issues here, with your own agent. Bring back evidence for maintainers.
Open the LabAt a glance
- Merged PRs
- #104897
- Closed issues
- 1
- Attempts
- 1 PR closed without merging
- Fix link checked
- 7 Sep 2026