Module mcp 

The mcp module: the MCP projection of this registry, described as one typed value.

MCP is a projection and owns nothing: every tool is a capability, every resource a capability or an object of the layer. What a client can find out about the projection was nevertheless scattered — the protocol versions in initialize, the tools one page at a time in tools/list, the effect of each in an annotation, the client configurations in share/providers.yaml, whether each one starts this repository’s server in a shell function. mcp.projection is the same facts as one answer, read by the Cockpit’s MCP page, the HTTP route, the tool and majordomus mcp --inspect alike, so that none of them keeps an inventory of its own.

Nothing here is a second list. The tools are the registry’s, filtered by the exposure they declare; the effect and the hints are the capability’s classification (ExecutionPolicy::hints); the protocol facts are the constants the server answers initialize with; the clients are the providers the distribution declares.

use majordomus_cli::capability::builtin::mcp;
use majordomus_cli::capability::model::CapabilityKind;

let m = mcp::module();
let c = &m.capabilities[0].capability;
assert_eq!(c.id.as_str(), "mcp.projection");
// describing the projection reads the registry and changes nothing
assert_eq!(c.kind, CapabilityKind::Query);
assert_eq!(c.exposure.http.as_ref().unwrap().path, "/api/v1/mcp");

Structs

McpClient

One client the distribution declares a project-scoped configuration for.

McpEffectCount

How many tools have one effect.

McpFinding

Something about the projection a person should act on.

McpProjection

The MCP projection of this registry in this repository.

McpProjectionInput

The input of mcp.projection: which tools to list. Everything else in the answer is about the projection as a whole and is always given.

McpResourceSummary

The resources a client can read.

McpServerIdentity

Who answers initialize, as it answers.

McpServing

What the server serves of the protocol, and what it does not.

McpToolEntry

One tool, as the registry projects it.

McpTransportEntry

One way a client reaches the server.

Enums

McpClientStanding

Where a client’s project-scoped configuration stands in this repository.

Constants

LAUNCHER

The launcher a client configuration names: the one command that finds or builds the executable and speaks MCP. Relative to a repository that carries it, and the name of the installed command where a repository does not.

MCP_URI

The URI under which the description is read as a resource.

Functions

describe

The projection as the capability answers it, for a caller inside this program that already holds the context: mcp --inspect prints the same value the tool, the resource and the route are asked for, and reading it cannot fail, because nothing in it is fetched — the registry, the peer board and the layer’s index are in the context, and a client configuration that cannot be read is one that is absent.

module

The mcp module: the one capability that describes the MCP projection, composed into the application like every other module, so that describing the projection is itself a tool, a resource and a route of it.

standing

Where a client configuration stands: read from the file, never from a list of who is expected to be wired.

tools

Every tool the registry projects, in registry order.