Files
windmill/backend
hugocasaandClaude Opus 5 0cd9306068 feat: add an instance setting to refuse a token in MCP URLs
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>
2026-09-16 10:29:21 +02:00
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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