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MCP clients are commonly configured with the token in the URL
(`/api/mcp/w/{workspace}/mcp?token=...`). A URL-borne credential ends up in
browser history, proxy logs and referrers, so an instance can now turn that
channel off with the `mcp_disable_token_query_param` global setting and leave
the Authorization header as the only way in, which sends MCP clients through
the OAuth flow the endpoints already advertise.
The rejection is a middleware on both the workspaced and the gateway MCP
mounts, layered outside everything that reads a token and inside the
WWW-Authenticate layer, so the 401 carries the resource pointer a client needs
to start OAuth discovery.
Off by default. With it on, the token drawer and the home connect drawer stop
offering to mint a token for an MCP URL and hand over the bare URL instead.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Windmill Backend
This folder holds all backend components, the src/ folder only contains files used to build the "root" binary.
Components
| name | description |
|---|---|
| windmill-api | The API server, exposing functionality to other components and the frontend |
| windmill-audit | Contains audit functionality, allowing different components to record important actions |
| windmill-common | Common code shared by all crates |
| windmill-queue | Contains job & flow queuing functionality, commonly written to by the API server and read from by workers |
| windmill-worker | The worker. Used to process and execute flows & jobs. |
| parsers | Contains code to parse signatures in different langauges. |
Compile sqlx for offline ci
cargo sqlx prepare --workspace -- --bin windmill --features enterprise