mrodgersjs-web/rig-marketplace/meta-catalog-pruner

Meta Catalog Pruner

Purpose

This is a META skill: it operates on the catalog taxonomy, not on content. The taxonomy is closed at 14 canonical doctrine packages; this gate rejects any admission or mutation that would create package #15, an unnamed package, or a skill pointing at a non-existent package. It runs at admission time and as a sweep over the live catalog.

Math claim (Deviatrix MathExec)

math_claim:
  expression: "violation_rate = |{e in Catalog : package(e) not in P14}| / |Catalog|"
  symbols: [violation_rate, Catalog, P14, package]
  assumptions:
    - "the canonical package list P14 is versioned and hash-pinned; the gate loads it from the pinned manifest, never from the catalog being checked"
    - "package membership is exact string match against P14 — no fuzzy matching, no aliases"
    - "catalog reads are consistent snapshots (no concurrent writer mid-sweep)"
  reference_population: "violation-rate distribution across all historical catalog snapshots (expected: point mass at 0 after gate installation)"
  estimator: "robust_madz"
  expected_result: "violation_rate == 0 on the live catalog; the admission path demonstrably rejects a #15 probe; MAD-z of package-count per snapshot stays at the 14-point baseline with zero variance"
  falsifier: "any probe carrying package #15 (or an unknown/empty package string) is admitted, or the sweep finds a live entry outside P14 — the taxonomy is open and every downstream per-package gate loses its meaning"

Workflow

1. Load the pinned canonical package list P14 from the versioned manifest; verify its hash before trusting it.
2. Admission path: for each proposed entry, extract doctrine_package and require exact membership in P14; reject otherwise with the full P14 list in the error.
3. Sweep path: scan every entry in skill_catalog.json (and harness/agent catalogs) for package(e) ∈ P14; collect violations.
4. Compute violation_rate; any non-zero rate fails the gate and routes violations to meta-skill-surgeon as condemnation class taxonomy-violation.
5. Seal the sweep as a ProofPacket: P14 hash, entry count, violation list (empty), timestamp.

Rig Memory OS integration

Records memory.record_event("meta_catalog_pruner", {mode, entries, violations, p14_hash}) per admission decision and sweep; calls memory.propose_memory when repeated #15-style probes arrive from the same source, flagging a generator that needs its template constrained upstream.

Done test

cd $(rig-builds)/needle-haystack && python3 artifacts/meta/mathexec_substrate.py self-test && python3 artifacts/meta/mathexec_substrate.py pruner-check --probe artifacts/meta/fixtures/package15_probe.json --p14 artifacts/meta/p14_manifest.json --expect-reject

Planted failure

The probe fixture package15_probe.json is a well-formed skill admission request whose doctrine_package is "rig-package-15" — valid in every field except taxonomy. Expected RED output: REJECTED: doctrine_package "rig-package-15" not in P14 (14 canonical packages) — package #15 refused by construction, exit code 1, and the catalog must be untouched. If pruner-check exits 0 on the probe, the gate is open and the run is RED.

Examples

/pruner admit artifacts/skills/new-skill/SKILL.md --p14 artifacts/meta/p14_manifest.json
/pruner sweep --catalogs artifacts/skill_catalog.json artifacts/harness_catalog.json artifacts/agent_catalog.json

Install

needle install meta-catalog-pruner