Constant CLOSURE_URI 

pub const CLOSURE_URI: &str = "majordomus://obligations/closure";

The URI under which this checkout’s closure is read as an MCP resource.

Under the vocabulary’s path rather than beside it: the closure is the vocabulary applied to one task, and a reader that found the first has found the second.

use majordomus_cli::capability::builtin::obligations::{CLOSURE_URI, OBLIGATIONS_URI};
assert!(CLOSURE_URI.starts_with(OBLIGATIONS_URI));