René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"SEP-2106 — JSON Schema 2020-12 + structuredContent","articleBody":"Tracks: #2792\n\nTool schemas conform to JSON Schema 2020-12 and `structuredContent` accepts any JSON value (the type widening landed in #2849).\n\n## What's in it\n\n- Client never dereferences network `$ref` anywhere it processes tool schemas; server rejects unresolvable external `$ref` at registration.\n- Audit downstream code that assumed `structuredContent` is an object / truthy.\n\n## Conformance\n\n- `json-schema-ref-no-deref`\n\n## Dependencies\n\n- Depends on: none\n\n## References\n\n- [Tools — schemas](https://modelcontextprotocol.io/specification/draft/server/tools)\n- [SEP-2106](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2106)\n","author":{"url":"https://github.com/maxisbey","@type":"Person","name":"maxisbey"},"datePublished":"2026-06-17T11:12:23.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/2903/python-sdk/issues/2903"}