rubric-verifier

Rubric Verifier — execution-free candidate selector

Select the best among N candidate patches without running any tests, by having a fresh-context reviewer build a repo-grounded rubric and score each candidate against it. The output is a ranked advisory list; the coverage gate remains the hard blocker.

Why this exists

After /multi-execute, codex council, or an external-tools (Codex + Gemini) fan-out you have N candidate diffs for the same task. The current pipeline has no principled execution-free SELECT step:

Existing skill	What it does	Gap
fresh-context-verify	re-derives one load-bearing value	single-value, not N-candidate ranking
VALIDATE (metaswarm)	runs tests	execution required; expensive to run N times
code-review	hunts for bugs in one diff	not a multi-candidate rubric scorer

This skill fills the SELECT point: pick the best candidate before spending test-runner cycles on all N.

Trigger

Run this skill after N ≥ 2 candidate diffs exist and before VALIDATE, when:

• A /multi-execute or codex council run has produced N patches in a manifest file (default: .multi-execute/candidates/ or .council/candidates/), or
• External-tools (Codex CLI + Gemini CLI) have each produced a patch and you need to pick one before committing to the VALIDATE loop.

Skip when:

• Only one candidate exists (nothing to rank).
• The issue is trivially localised (one-liner typo fix) — any diff that compiles is fine.

Composition with existing gates

Phase 1 — Rubric Construction (FRESH context)

Inputs to pass to the fresh-context Task

Fresh-agent exploration protocol

Rubric format (agent output)

Phase 2 — Scoring (same or new Task per candidate)

Scorer prompt template

Parallelism option

Phase 3 — Aggregate and Report

Rubric Verifier — Advisory Ranking

Ranking