Fix critique routing snapshot metrics

skill/scripts/context-signals.mjs

@@ -42,14 +42,15 @@ function latestCritique(cwd) {
     if (!latest) return null;
     const get = (key) => latest.meta[key] ?? null;
     const num = (v) => {
+      if (v == null) return null;
       const n = Number(v);
       return Number.isFinite(n) ? n : null;
     };
     return {
       slug: get('slug'),
-      score: num(get('score')),
-      p0: num(get('p0')),
-      p1: num(get('p1')),
+      score: num(get('total_score') ?? get('score')),
+      p0: num(get('p0_count') ?? get('p0')),
+      p1: num(get('p1_count') ?? get('p1')),
       timestamp: get('timestamp'),
       file: path.relative(cwd, latest.path),
     };

tests/context-signals.test.mjs

@@ -76,6 +76,24 @@ describe('gatherSignals', () => {
     assert.equal(s.critique.latest.slug, 'home');
   });
 
+  it('reads the documented critique snapshot metadata keys', async () => {
+    write('.impeccable/critique/2026-05-02T10-00-00Z__pricing.md',
+      '---\nslug: pricing\ntotal_score: 24\np0_count: 2\np1_count: 5\ntimestamp: 2026-05-02T10-00-00Z\n---\nbody\n');
+    const s = await gatherSignals(scratch);
+    assert.equal(s.critique.latest.score, 24);
+    assert.equal(s.critique.latest.p0, 2);
+    assert.equal(s.critique.latest.p1, 5);
+  });
+
+  it('reports missing critique metrics as null', async () => {
+    write('.impeccable/critique/2026-05-02T10-00-00Z__pricing.md',
+      '---\nslug: pricing\ntimestamp: 2026-05-02T10-00-00Z\n---\nbody\n');
+    const s = await gatherSignals(scratch);
+    assert.equal(s.critique.latest.score, null);
+    assert.equal(s.critique.latest.p0, null);
+    assert.equal(s.critique.latest.p1, null);
+  });
+
   it('reads the newest critique snapshot across target slugs', async () => {
     write('.impeccable/critique/2026-05-01T10-00-00Z__home.md',
       '---\nslug: home\nscore: 6\np0: 1\np1: 3\ntimestamp: 2026-05-01T10-00-00Z\n---\nbody\n');