nx_libindex.nx

nx_libindex.nx -- CLI front door for the library discovery index (PG1, procgen.plan, 2026-08-24). Thin main only. Every function lives in nx_libindex_lib.nx so nx_libindex_gate can compose them IN-PROCESS rather than forking a deployed binary: a gate that rebuilds the test but not the subject proves nothing, and this way there is no subject to rebuild. WHY THIS ORGAN EXISTS: nx_capsearch ranks REGISTERED MCP TOOLS, and a library has no registration row by design. So the one instrument CLAUDE.md orders run before building anything is structurally blind to every library in the estate -- which is how eight duplicate isqrt copies came to be written beside each other. THE INDEX IS A SOVEREIGN ROW PLANE at knowledge/store/libindex- (never a .tsv file in the plane -- that shape was retired 2026-08-13). The scratch descriptor the walker streams into is organ-owned and transient. license_tier: ORIGINAL