coder

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T

Michael Suchacz 1e546ea8a3 feat(coderd/x/chatd/mcpclient): migrate external MCP client to official Go SDK (#28058 )

## Stack Context

PR 3 of 6 in a stack that migrates every Coder MCP surface from the
archived `github.com/mark3labs/mcp-go` library to the official
`github.com/modelcontextprotocol/go-sdk` v1.7.0.

Stack: #28056 -> #28057 -> #28058 -> #28059 -> #28060 -> #28061

## Why

The chatd external MCP client (admin-configured MCP servers used by
Agent chat) now holds `*mcp.ClientSession` connections created via
`mcp.NewClient` and `Client.Connect`, with `StreamableClientTransport`
or `SSEClientTransport` per server config.

- Auth and identity headers are injected through a custom
`http.RoundTripper` because the official SDK has no per-header transport
options.
- Tool input schemas are extracted from the SDK's `map[string]any`
decoding.
- Content conversion handles the official pointer content types; the SDK
decodes blob resources into raw bytes, so binary content is handled
without an extra base64 round trip.
- Test fixtures are official stateless Streamable HTTP servers.

> Mux created this PR on Mike's behalf.

2026-08-13 10:11:47 +00:00

agenthooks/dispatch

fix(coderd/x/agenthooks/dispatch): deflake TestDispatcherTimeoutNoRetry (#28050 )

2026-08-12 20:53:28 +02:00

chatd

feat(coderd/x/chatd/mcpclient): migrate external MCP client to official Go SDK (#28058 )

2026-08-13 10:11:47 +00:00

chatfiles

fix: allow agents to attach any file type (#26560 )

2026-06-25 00:51:13 +10:00

gitsync

feat: add GitLab support to coderd/externalauth/gitprovider