Own endpoint identity and per-edge kind knowledge in one parsed reference
representation. Preserve exact same-artifact coordinates and cross-artifact
name uncertainty, including generated and nonunique procedure labels.
Use exact multiplicity-preserving sparse compatibility flow instead of
positional/greedy pairing or a quadratic adjacency matrix. Share the native
coordinate parser with call paths and remove the superseded projections.
Validate public MCP comparison/reconstruction outcomes, independent tiny
permutation oracles, dense matching and advertised JSON Schemas.
Fixes#4210Fixes#5131
Co-authored-by: Henglie <ebhenglie@gmail.com>
