feat(observer): recommended-node resolver for direct episodes

Mirrors missed-activations dormancy logic (id === false strict).
First live recommended node from classification-map, else null.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/observer/STATUS.md

@@ -1,6 +1,6 @@
 # Brain Status (auto-generated)
 
-Last updated: 2026-05-23T10:16:44.994Z
+Last updated: 2026-05-23T10:20:01.355Z
 
 | Контролёр | Состояние | Детали |
 |---|---|---|
@@ -8,12 +8,12 @@ Last updated: 2026-05-23T10:16:44.994Z
 | C2 Cross-ref consistency | ✅ | [cross-ref-checker] OK — 0 drift in 4 files |
 | C3 Observer-of-observer | ✅ | [observer-of-observer] OK — last read 0 week(s) ago |
 | C4 Сигнальный статус | ✅ | This file (self-reference) |
-| C5 Observer-coverage | ⚠️ | 143 episode(s) this month · Stop-hook + post-commit OK · 21 missed activation(s) — see /brain-retro |
+| C5 Observer-coverage | ⚠️ | 144 episode(s) this month · Stop-hook + post-commit OK · 21 missed activation(s) — see /brain-retro |
 | C6 Chain map sync | ✅ | [chain-map-checker] OK — 16 chains in sync |
 
 ## Метрики (информационные, не алерты)
 
-- Observer evidence: 143 episodes this month, 0 observer_error markers, 64 PII matches before filter
+- Observer evidence: 144 episodes this month, 0 observer_error markers, 67 PII matches before filter
 - Legacy v1 episodes (not in factor analysis): 5
 - Last /brain-retro: 0 day(s) ago
 - Использование узлов: см. `/brain-retro` (раз в спринт). missed_activations: 21. **Неиспользованные узлы — не алерт, если профильной задачи не было** (Pravila §16.4 v1.36; capability-readiness; см. memory `feedback_brain_unused_tools_not_problem` — outside-repo memory store).

tools/observer-recommended-node.mjs

@@ -0,0 +1,22 @@
+#!/usr/bin/env node
+/**
+ * Recommended-node resolver for direct episodes.
+ * Pure — read-only, no exec, no fs (Security Guidance #40).
+ *
+ * For an episode classified as `taskClassification` with node_chosen='direct',
+ * return the first live (non-dormant) recommended node ID from the
+ * classification map. Mirrors missed-activations.mjs dormancy logic:
+ * dormancy[id] === false strictly (missing/true → not live).
+ *
+ * Per spec: docs/superpowers/specs/2026-05-23-observer-parser-skill-hook-expand-design.md
+ */
+
+export function recommendNode(taskClassification, classificationMap, dormancy) {
+  if (!taskClassification || !classificationMap || !dormancy) return null;
+  const recommended = classificationMap[taskClassification];
+  if (!Array.isArray(recommended) || recommended.length === 0) return null;
+  for (const id of recommended) {
+    if (dormancy[id] === false) return id;
+  }
+  return null;
+}

tools/observer-recommended-node.test.mjs

@@ -0,0 +1,44 @@
+import { describe, it, expect } from 'vitest';
+import { recommendNode } from './observer-recommended-node.mjs';
+
+const MAP = {
+  feature: ['#19'],
+  refactor: ['#11', '#12', '#43'],
+  question: [],
+  other: [],
+};
+
+describe('recommendNode', () => {
+  it('returns first live node ID for a known classification', () => {
+    expect(recommendNode('feature', MAP, { '#19': false })).toBe('#19');
+  });
+
+  it('skips dormant first node, returns next live', () => {
+    expect(recommendNode('refactor', MAP, { '#11': true, '#12': false, '#43': false })).toBe('#12');
+  });
+
+  it('returns null when all recommended nodes are dormant', () => {
+    expect(recommendNode('refactor', MAP, { '#11': true, '#12': true, '#43': true })).toBeNull();
+  });
+
+  it('returns null for classification absent from map', () => {
+    expect(recommendNode('nonexistent', MAP, {})).toBeNull();
+  });
+
+  it('returns null for empty-array classification (question/memory-sync)', () => {
+    expect(recommendNode('question', MAP, {})).toBeNull();
+    expect(recommendNode('other', MAP, {})).toBeNull();
+  });
+
+  it('treats missing dormancy entry as live (defensive, parity with missed-activations)', () => {
+    // missed-activations uses dormancy[id] === false; recommendNode mirrors:
+    // unknown/missing → not live (paranoid — only positive false counts as live).
+    expect(recommendNode('feature', MAP, {})).toBeNull();
+  });
+
+  it('handles null/undefined inputs without throwing', () => {
+    expect(recommendNode(null, MAP, {})).toBeNull();
+    expect(recommendNode('feature', null, {})).toBeNull();
+    expect(recommendNode('feature', MAP, null)).toBeNull();
+  });
+});