modelcontextprotocol / modelcontextprotocol/java-sdk
SEP-2106: Tools inputSchema & outputSchema Conform to JSON Schema 2020-12
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enhancement
- Dominant language
- Java
- Stars
- 3.7k
- Forks
- 1.1k
- Avg merge
- 1d 15h
- Merged PRs (30d)
- 9
Description
Tracking implementation of SEP-2106 for the 2026-07-28 MCP spec release.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the linked SEP-2106 proposal and examining how the Java SDK currently represents Tools inputSchema and outputSchema. Confirm the required JSON Schema 2020-12 behavior and update the implementation and its relevant tests so the SDK conforms for the 2026-07-28 MCP spec release.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, json
- Domain
- api
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100