Skip to content

fix(mcp): use initialize-compatible protocol - #412

Merged
ankrgyl merged 1 commit into
mainfrom
fix/mcp-initialize-protocol
Nov 3, 2026
Merged

ankrgyl merged 1 commit into
mainfrom
fix/mcp-initialize-protocol

Conversation

@ankrgyl

@ankrgyl ankrgyl commented Nov 3, 2026

Copy link
Copy Markdown
Collaborator

MCP servers that reject protocol revisions without an initialize handshake cannot connect when the client advertises the newest protocol revision during initialization.

Use ClientConfig with LATEST_WITH_INITIALIZE for native connections, including caller-supplied HTTP clients and authentication probes. Require rmcp 3.5 or newer and refresh the lockfile. The existing JSON, SSE, and injected-client fixtures now reject revisions outside the initialize-era protocol set.

Validation: Rust formatting completed. Tests are left to CI; no local builds or test runs.

@ankrgyl
ankrgyl merged commit d7fb6d2 into main Nov 3, 2026
7 of 8 checks passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant