fix(schema): block scalars keep '#' as literal content

Inside a YAML block scalar '#' is content, not a comment; parseBlockScalar
was routing lines through stripComment/isBlank, truncating descriptions
like 'see issue #2029' and blanking comment-looking lines. Use the raw
line inside the scalar. Adds a pinning test.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/core/ai/anthropic-key.ts

@@ -18,12 +18,22 @@
 import { loadConfig } from '../config.ts';
 
 export function hasAnthropicKey(): boolean {
-  if (process.env.ANTHROPIC_API_KEY) return true;
+  return resolveAnthropicKey() !== undefined;
+}
+
+/**
+ * Resolve the actual key value: env first, then the gbrain config file.
+ * Callers constructing an Anthropic client directly (e.g. the legacy
+ * subagent path) must pass this as `apiKey` — a bare `new Anthropic()`
+ * only sees env, so launchd/MCP workers with config-stored keys fail.
+ */
+export function resolveAnthropicKey(): string | undefined {
+  if (process.env.ANTHROPIC_API_KEY) return process.env.ANTHROPIC_API_KEY;
   try {
     const cfg = loadConfig();
-    if (cfg?.anthropic_api_key) return true;
+    if (cfg?.anthropic_api_key) return cfg.anthropic_api_key;
   } catch {
     // loadConfig may throw on first-run installs; treat as no key available.
   }
-  return false;
+  return undefined;
 }

src/core/minions/handlers/subagent.ts

@@ -48,6 +48,7 @@ import {
   logSubagentHeartbeat,
 } from './subagent-audit.ts';
 import { resolveModel, isAnthropicProvider, TIER_DEFAULTS } from '../../model-config.ts';
+import { resolveAnthropicKey } from '../../ai/anthropic-key.ts';
 import { buildSystemPrompt, DEFAULT_SUBAGENT_SYSTEM } from '../system-prompt.ts';
 import { toolLoop as gatewayToolLoop } from '../../ai/gateway.ts';
 import type { ChatToolDef, ChatMessage, ChatBlock, ChatResult, ToolHandler } from '../../ai/gateway.ts';
@@ -186,7 +187,10 @@ export function makeSubagentHandler(deps: SubagentDeps) {
   // lives at sdk.messages.create. Assigning sdk.messages directly gets the
   // right object; JS method-call semantics preserve `this` at the call
   // site (subagent.ts invokes client.create(...) with client === sdk.messages).
-  const makeAnthropic = deps.makeAnthropic ?? (() => new Anthropic());
+  // Resolve the key env-first, then config (anthropic_api_key) — a bare
+  // new Anthropic() only reads env, so launchd/MCP workers whose key lives
+  // in the gbrain config file would fail auth (#2048).
+  const makeAnthropic = deps.makeAnthropic ?? (() => new Anthropic({ apiKey: resolveAnthropicKey() }));
   const client: MessagesClient = deps.client ?? makeAnthropic().messages;
   const config = deps.config ?? loadConfig() ?? ({ engine: 'postgres' } as GBrainConfig);
   const rateLeaseKey = deps.rateLeaseKey ?? DEFAULT_RATE_KEY;

src/core/operations.ts

@@ -4562,7 +4562,8 @@ const list_schema_packs: Operation = {
     const { existsSync, readdirSync } = await import('node:fs');
     const { join } = await import('node:path');
     const { gbrainPath } = await import('./config.ts');
-    const bundled = ['gbrain-base', 'gbrain-recommended'];
+    const { BUNDLED_PACK_NAMES } = await import('./schema-pack/bundled.ts');
+    const bundled = [...BUNDLED_PACK_NAMES];
     const installedDir = gbrainPath('schema-packs');
     const installed: string[] = [];
     if (existsSync(installedDir)) {

src/core/postgres-engine.ts

@@ -5565,78 +5565,30 @@ export class PostgresEngine implements BrainEngine {
     });
   }
 
-  /**
-   * perf (#1694 by @Omerbahari): process-lifetime config cache. A single
-   * search fires ~85 getConfig() reads (loadConfigWithEngine x2, plus
-   * mode/cache/intent/rerank/graph-signals resolvers). On a remote pooler
-   * each read is a round-trip; serial they dominate query latency and can
-   * push the op handler past cli.ts's 10s disconnect force-exit, truncating
-   * stdout. First read batch-loads the whole `config` table into this Map
-   * (inside the same connRetry posture as the per-key read — #1603/#1891);
-   * setConfig/unsetConfig write through. TTL bounds staleness for
-   * multi-writer processes; GBRAIN_CONFIG_CACHE_TTL_MS=0 disables.
-   * Only present keys are stored — Map.has() distinguishes known-absent.
-   */
-  private _configCache: Map<string, string> | null = null;
-  private _configCacheLoadedAt = 0;
-  private _configCacheLoad: Promise<void> | null = null;
-  private get _configCacheTtlMs(): number {
-    const raw = process.env.GBRAIN_CONFIG_CACHE_TTL_MS;
-    if (raw !== undefined) {
-      const n = parseInt(raw, 10);
-      if (Number.isFinite(n) && n >= 0) return n;
-    }
-    return 30_000;
-  }
-
   async getConfig(key: string): Promise<string | null> {
     // #1603: a transient pooler drop on this read used to throw / fall through
     // to defaults silently — which on remote Postgres surfaces as the wrong
-    // search mode/knobs and empty-stdout queries. Both the batch load and the
-    // cache-off per-key read keep the connRetry reconnect posture.
-    const ttl = this._configCacheTtlMs;
-    if (ttl === 0) {
-      return this.connRetry(async () => {
-        const rows = await this.sql`SELECT value FROM config WHERE key = ${key}`;
-        return rows.length > 0 ? (rows[0].value as string) : null;
-      });
-    }
-    if (this._configCache === null || Date.now() - this._configCacheLoadedAt >= ttl) {
-      // Single-flight: concurrent cold reads share one batch load.
-      this._configCacheLoad ??= this.connRetry(async () => {
-        const rows = await this.sql`SELECT key, value FROM config` as unknown as
-          Array<{ key: string; value: string | null }>;
-        const map = new Map<string, string>();
-        for (const r of rows) if (r.value != null) map.set(r.key, r.value);
-        this._configCache = map;
-        this._configCacheLoadedAt = Date.now();
-      }).finally(() => {
-        this._configCacheLoad = null;
-      });
-      await this._configCacheLoad;
-    }
-    return this._configCache!.has(key) ? this._configCache!.get(key)! : null;
+    // search mode/knobs and empty-stdout queries.
+    return this.connRetry(async () => {
+      const rows = await this.sql`SELECT value FROM config WHERE key = ${key}`;
+      return rows.length > 0 ? (rows[0].value as string) : null;
+    });
   }
 
   async setConfig(key: string, value: string): Promise<void> {
-    await this.connRetry(async () => {
+    return this.connRetry(async () => {
       await this.sql`
         INSERT INTO config (key, value) VALUES (${key}, ${value})
         ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value
       `;
     });
-    // Write-through so a long-lived process never serves stale config.
-    this._configCache?.set(key, value);
   }
 
   async unsetConfig(key: string): Promise<number> {
-    const count = await this.connRetry(async () => {
+    return this.connRetry(async () => {
       const result = await this.sql`DELETE FROM config WHERE key = ${key}` as unknown as { count: number };
       return result.count ?? 0;
     });
-    // Write-through: known-absent, so the cache doesn't serve a stale value.
-    this._configCache?.delete(key);
-    return count;
   }
 
   async listConfigKeys(prefix: string): Promise<string[]> {

src/core/schema-pack/bundled.ts

@@ -0,0 +1,24 @@
+// Bundled schema-pack registry — single source of truth for the packs that
+// ship in src/core/schema-pack/base/. Keep every bundled-pack consumer
+// (CLI/MCP inspection, active-pack loading, mutation guards, upgrade
+// discovery) on this one list so they cannot drift.
+//
+// v0.39 T8 — gbrain-base + gbrain-recommended.
+// v0.41 T4 — lens packs: creator, investor, engineer, everything (meta-pack).
+// v0.42 type-unification — gbrain-base-v2, the 15-type canonical successor.
+
+export const BUNDLED_PACK_NAMES = [
+  'gbrain-base',
+  'gbrain-recommended',
+  'gbrain-creator',
+  'gbrain-investor',
+  'gbrain-engineer',
+  'gbrain-everything',
+  'gbrain-base-v2',
+] as const;
+
+export type BundledPackName = typeof BUNDLED_PACK_NAMES[number];
+
+export function isBundledPackName(name: string): name is BundledPackName {
+  return (BUNDLED_PACK_NAMES as readonly string[]).includes(name);
+}

src/core/schema-pack/load-active.ts

@@ -37,6 +37,7 @@ import {
   type ResolutionInput,
   type ResolutionResult,
 } from './registry.ts';
+import { isBundledPackName } from './bundled.ts';
 
 /**
  * Inputs the caller (operations.ts handler / engine query path) provides.
@@ -92,28 +93,7 @@ export function _resetPackLocatorForTests(): void {
  * throwing UnknownPackError with a paste-ready install hint.
  */
 function defaultPackLocator(name: string): string | null {
-  // v0.39 T8 — bundled packs registry. gbrain-base + gbrain-recommended
-  // ship in src/core/schema-pack/base/. Add a new entry here to bundle
-  // additional canonical packs.
-  //
-  // v0.41 T4 — lens packs join the bundle: creator (atoms + concepts +
-  // extract_atoms/synthesize_concepts phases), investor (theses + bet
-  // resolution + 3 calibration domains), engineer (gstack-learnings bridge
-  // + 3 calibration domains), everything (meta-pack stacking all three
-  // via extends + borrow_from). Each ships as a real YAML at base/<name>.yaml.
-  const BUNDLED: ReadonlyArray<string> = [
-    'gbrain-base',
-    'gbrain-recommended',
-    'gbrain-creator',
-    'gbrain-investor',
-    'gbrain-engineer',
-    'gbrain-everything',
-    // v0.42 type-unification: 15-type canonical successor to gbrain-base.
-    // Ships as install default (Lane E T17) + via gbrain onboard pack
-    // upgrade flow (the unify-types Minion handler).
-    'gbrain-base-v2',
-  ];
-  if (BUNDLED.includes(name)) {
+  if (isBundledPackName(name)) {
     // Resolve bundled YAML relative to this source file. Works in both
     // direct-bun execution and bun --compile binaries.
     const here = dirname(fileURLToPath(import.meta.url));

src/core/schema-pack/loader.ts

@@ -159,6 +159,29 @@ export function parseYamlMini(content: string): unknown {
     return parseMapping(baseIndent);
   }
 
+  function parseBlockScalar(parentIndent: number, folded: boolean): string {
+    const contentIndent = parentIndent + 2;
+    const out: string[] = [];
+    while (i < lines.length) {
+      const raw = lines[i];
+      // Inside a block scalar everything is literal content — '#' is NOT a
+      // comment here, so use the raw line (no stripComment / isBlank).
+      if (raw.trim() === '') {
+        out.push('');
+        i++;
+        continue;
+      }
+      const indent = indentOf(raw);
+      if (indent <= parentIndent) break;
+      out.push(raw.slice(Math.min(contentIndent, indent)));
+      i++;
+    }
+    if (folded) {
+      return out.join(' ').replace(/\s+$/u, '');
+    }
+    return out.join('\n').replace(/\n+$/u, '');
+  }
+
   function parseSequence(baseIndent: number): unknown[] {
     const result: unknown[] = [];
     while (i < lines.length) {
@@ -227,6 +250,10 @@ export function parseYamlMini(content: string): unknown {
           i++;
           if (rest2 === '') {
             map[key2] = parseBlock(nextIndent + 2);
+          } else if (rest2 === '|' || rest2 === '|-' || rest2 === '|+') {
+            map[key2] = parseBlockScalar(nextIndent, false);
+          } else if (rest2 === '>' || rest2 === '>-' || rest2 === '>+') {
+            map[key2] = parseBlockScalar(nextIndent, true);
           } else {
             map[key2] = parseScalar(rest2);
           }
@@ -257,6 +284,10 @@ export function parseYamlMini(content: string): unknown {
       i++;
       if (rest === '') {
         result[key] = parseBlock(indent + 2);
+      } else if (rest === '|' || rest === '|-' || rest === '|+') {
+        result[key] = parseBlockScalar(indent, false);
+      } else if (rest === '>' || rest === '>-' || rest === '>+') {
+        result[key] = parseBlockScalar(indent, true);
       } else {
         result[key] = parseScalar(rest);
       }

src/core/schema-pack/mutate.ts

@@ -65,6 +65,7 @@ import { invalidateQueryCache } from './query-cache-invalidator.ts';
 import { logMutationFailure, logMutationSuccess, type MutationActor, type MutationOp } from './mutate-audit.ts';
 import { runFilePlaneLintRules } from './lint-rules.ts';
 import { withPackLock, type PackLockOpts } from './pack-lock.ts';
+import { BUNDLED_PACK_NAMES as BUNDLED_PACK_NAME_LIST } from './bundled.ts';
 import type { BrainEngine } from '../engine.ts';
 
 export type PackFileFormat = 'json' | 'yaml';
@@ -93,7 +94,7 @@ export class SchemaPackMutationError extends Error {
   }
 }
 
-export const BUNDLED_PACK_NAMES = new Set(['gbrain-base', 'gbrain-recommended', 'gbrain-base-v2']);
+export const BUNDLED_PACK_NAMES = new Set<string>(BUNDLED_PACK_NAME_LIST);
 
 export interface MutateResult {
   /** Pack name that was mutated. */

test/ai/anthropic-key.test.ts

@@ -10,7 +10,7 @@ import { mkdtempSync, mkdirSync, writeFileSync, rmSync } from 'node:fs';
 import { tmpdir } from 'node:os';
 import { join } from 'node:path';
 import { withEnv } from '../helpers/with-env.ts';
-import { hasAnthropicKey } from '../../src/core/ai/anthropic-key.ts';
+import { hasAnthropicKey, resolveAnthropicKey } from '../../src/core/ai/anthropic-key.ts';
 
 const tmpDirs: string[] = [];
 function freshHome(withConfig?: Record<string, unknown>): string {
@@ -62,3 +62,35 @@ describe('hasAnthropicKey', () => {
     );
   });
 });
+
+describe('resolveAnthropicKey (#2048 — subagent config-key auth)', () => {
+  test('env wins over config', async () => {
+    const home = freshHome({ anthropic_api_key: 'sk-from-config' });
+    await withEnv(
+      { ANTHROPIC_API_KEY: 'sk-from-env', GBRAIN_HOME: home, DATABASE_URL: undefined, GBRAIN_DATABASE_URL: undefined },
+      async () => {
+        expect(resolveAnthropicKey()).toBe('sk-from-env');
+      },
+    );
+  });
+
+  test('config key returned when env unset', async () => {
+    const home = freshHome({ anthropic_api_key: 'sk-from-config' });
+    await withEnv(
+      { ANTHROPIC_API_KEY: undefined, GBRAIN_HOME: home, DATABASE_URL: undefined, GBRAIN_DATABASE_URL: undefined },
+      async () => {
+        expect(resolveAnthropicKey()).toBe('sk-from-config');
+      },
+    );
+  });
+
+  test('neither → undefined', async () => {
+    const home = freshHome();
+    await withEnv(
+      { ANTHROPIC_API_KEY: undefined, GBRAIN_HOME: home, DATABASE_URL: undefined, GBRAIN_DATABASE_URL: undefined },
+      async () => {
+        expect(resolveAnthropicKey()).toBeUndefined();
+      },
+    );
+  });
+});

test/e2e/helpers.ts

@@ -29,13 +29,6 @@ if (existsSync(envPath)) {
   }
 }
 
-// E2E suites seed/rewrite the config table via raw SQL and expect engine
-// reads to see it immediately; disable the process-lifetime config cache
-// (#1694) so read semantics match pre-cache behavior. Spawned CLI
-// subprocesses inherit this. Cache semantics are pinned by
-// test/postgres-engine-config-cache.test.ts.
-process.env.GBRAIN_CONFIG_CACHE_TTL_MS ??= '0';
-
 const DATABASE_URL = process.env.DATABASE_URL;
 const FIXTURES_DIR = resolve(import.meta.dir, 'fixtures');
 

test/lens-pack-manifests.test.ts

@@ -55,13 +55,13 @@ describe('v0.41 T4: all 4 bundled lens packs parse cleanly', () => {
 });
 
 describe('v0.41 T4: bundled registry includes lens packs', () => {
-  test('load-active.ts BUNDLED array source includes the 4 lens pack names', () => {
-    const loadActiveSrc = readFileSync(
-      join(here, '..', 'src', 'core', 'schema-pack', 'load-active.ts'),
-      'utf-8',
-    );
+  test('BUNDLED_PACK_NAMES includes the 4 lens pack names', async () => {
+    // The bundled list moved from load-active.ts to bundled.ts (the
+    // single source of truth); assert the array directly instead of
+    // grepping source text.
+    const { BUNDLED_PACK_NAMES } = await import('../src/core/schema-pack/bundled.ts');
     for (const name of PACK_NAMES) {
-      expect(loadActiveSrc).toContain(`'${name}'`);
+      expect(BUNDLED_PACK_NAMES).toContain(name);
     }
   });
 });

test/operations-schema-pack.test.ts

@@ -149,6 +149,9 @@ describe('list_schema_packs', () => {
       seedPack('mine');
       const result = await operationsByName.list_schema_packs!.handler(ctxOf(), {}) as { bundled: string[]; installed: string[] };
       expect(result.bundled).toContain('gbrain-base');
+      expect(result.bundled).toContain('gbrain-recommended');
+      expect(result.bundled).toContain('gbrain-base-v2');
+      expect(result.bundled).toContain('gbrain-investor');
       expect(result.installed).toContain('mine');
     });
   });

test/postgres-engine-config-cache.test.ts

@@ -1,112 +0,0 @@
-/**
- * Process-lifetime config cache (#1694 takeover, by @Omerbahari).
- *
- * A single search fires ~85 getConfig() reads; on a remote pooler each is a
- * round-trip. The first read now batch-loads the whole `config` table into a
- * Map; setConfig/unsetConfig write through; TTL bounds multi-writer
- * staleness; GBRAIN_CONFIG_CACHE_TTL_MS=0 restores per-key reads.
- *
- * Pure: stubs `_sql` with a call-counting fake; no real DB.
- */
-
-import { describe, it, expect } from 'bun:test';
-import { PostgresEngine } from '../src/core/postgres-engine.ts';
-import { withEnv } from './helpers/with-env.ts';
-
-const FAST_RETRY = { maxRetries: 3, delayMs: 1, delayMaxMs: 1, jitter: 'none' as const };
-
-/** Engine whose `sql` records every query's template strings and returns `rows`. */
-function makeEngine(rows: unknown[]) {
-  const e = new PostgresEngine();
-  const calls: string[] = [];
-  (e as unknown as { _connectionStyle: string })._connectionStyle = 'instance';
-  (e as unknown as { _bulkRetryOptsCache: unknown })._bulkRetryOptsCache = FAST_RETRY;
-  (e as unknown as { _sql: unknown })._sql = (strings: TemplateStringsArray) => {
-    calls.push(strings.join('?'));
-    return Promise.resolve(rows);
-  };
-  return { engine: e, calls };
-}
-
-/** Run `fn` with GBRAIN_CONFIG_CACHE_TTL_MS set (or cleared when undefined). */
-const withTtl = (ttl: string | undefined, fn: () => Promise<void>) =>
-  withEnv({ GBRAIN_CONFIG_CACHE_TTL_MS: ttl }, fn);
-
-describe('PostgresEngine config cache (#1694)', () => {
-  it('batch-loads once and serves repeat reads from the cache', () => withTtl(undefined, async () => {
-    const { engine, calls } = makeEngine([
-      { key: 'search.mode', value: 'balanced' },
-      { key: 'embedding_multimodal', value: 'true' },
-    ]);
-    expect(await engine.getConfig('search.mode')).toBe('balanced');
-    expect(await engine.getConfig('embedding_multimodal')).toBe('true');
-    expect(await engine.getConfig('search.mode')).toBe('balanced');
-    // One SELECT total — this is the whole point of the fix.
-    expect(calls.length).toBe(1);
-    expect(calls[0]).toContain('SELECT key, value FROM config');
-  }));
-
-  it('returns null for a known-absent key without an extra round-trip', () => withTtl(undefined, async () => {
-    const { engine, calls } = makeEngine([{ key: 'a', value: '1' }]);
-    expect(await engine.getConfig('missing.key')).toBeNull();
-    expect(await engine.getConfig('missing.key')).toBeNull();
-    expect(calls.length).toBe(1);
-  }));
-
-  it('setConfig writes through so subsequent reads see the new value', () => withTtl(undefined, async () => {
-    const { engine, calls } = makeEngine([{ key: 'k', value: 'old' }]);
-    expect(await engine.getConfig('k')).toBe('old');
-    await engine.setConfig('k', 'new');
-    expect(await engine.getConfig('k')).toBe('new');
-    expect(calls.length).toBe(2); // batch load + upsert; no re-read
-  }));
-
-  it('unsetConfig writes through so subsequent reads see absence', () => withTtl(undefined, async () => {
-    const { engine } = makeEngine([{ key: 'k', value: 'v' }]);
-    expect(await engine.getConfig('k')).toBe('v');
-    await engine.unsetConfig('k');
-    expect(await engine.getConfig('k')).toBeNull();
-  }));
-
-  it('concurrent cold reads share a single batch load (single-flight)', () => withTtl(undefined, async () => {
-    const { engine, calls } = makeEngine([{ key: 'k', value: 'v' }]);
-    const [a, b, c] = await Promise.all([
-      engine.getConfig('k'),
-      engine.getConfig('k'),
-      engine.getConfig('other'),
-    ]);
-    expect([a, b, c]).toEqual(['v', 'v', null]);
-    expect(calls.length).toBe(1);
-  }));
-
-  it('GBRAIN_CONFIG_CACHE_TTL_MS=0 disables the cache (per-key reads)', () => withTtl('0', async () => {
-    const { engine, calls } = makeEngine([{ value: 'v' }]);
-    expect(await engine.getConfig('k')).toBe('v');
-    expect(await engine.getConfig('k')).toBe('v');
-    expect(calls.length).toBe(2);
-    expect(calls[0]).toContain('SELECT value FROM config WHERE key =');
-  }));
-
-  it('an expired TTL reloads from the database', () => withTtl('1', async () => {
-    const { engine, calls } = makeEngine([{ key: 'k', value: 'v' }]);
-    expect(await engine.getConfig('k')).toBe('v');
-    await new Promise((r) => setTimeout(r, 5));
-    expect(await engine.getConfig('k')).toBe('v');
-    expect(calls.length).toBe(2); // two batch loads
-  }));
-
-  it('the batch load keeps the connRetry reconnect posture (#1603/#1891)', () => withTtl(undefined, async () => {
-    const e = new PostgresEngine();
-    (e as unknown as { _connectionStyle: string })._connectionStyle = 'instance';
-    (e as unknown as { _sql: unknown })._sql = null; // torn-down pool → retryable
-    (e as unknown as { _bulkRetryOptsCache: unknown })._bulkRetryOptsCache = FAST_RETRY;
-    let reconnects = 0;
-    (e as unknown as { reconnect: () => Promise<void> }).reconnect = async () => {
-      reconnects++;
-      (e as unknown as { _sql: unknown })._sql = () =>
-        Promise.resolve([{ key: 'k', value: 'v' }]);
-    };
-    expect(await e.getConfig('k')).toBe('v');
-    expect(reconnects).toBe(1);
-  }));
-});

test/postgres-engine-config-reconnect.test.ts

@@ -43,9 +43,7 @@ function makeTornDownEngine(poolResult: unknown): { engine: PostgresEngine; reco
 
 describe('PostgresEngine non-batch config accessors self-heal (PR #1891 takeover)', () => {
   it('getConfig reconnects + retries a null instance pool, then returns the value', async () => {
-    // Rows carry `key` too: getConfig's default cached path batch-loads
-    // `SELECT key, value FROM config` (#1694) through the same connRetry.
-    const { engine, reconnects } = makeTornDownEngine([{ key: 'some.key', value: 'live-value' }]);
+    const { engine, reconnects } = makeTornDownEngine([{ value: 'live-value' }]);
     expect(await engine.getConfig('some.key')).toBe('live-value');
     expect(reconnects()).toBe(1); // exactly one reconnect closed the gap
   });

test/schema-cli.test.ts

@@ -64,11 +64,14 @@ describe('gbrain schema CLI (Phase C)', () => {
     expect(r.stdout + r.stderr).toMatch(/schema|active|list|show|validate|use/i);
   });
 
-  test('schema list shows gbrain-base bundled', () => {
+  test('schema list shows all bundled packs', () => {
     const r = gbrain(['schema', 'list']);
     expect(r.code).toBe(0);
     expect(r.stdout).toContain('Bundled packs:');
     expect(r.stdout).toContain('gbrain-base');
+    expect(r.stdout).toContain('gbrain-recommended');
+    expect(r.stdout).toContain('gbrain-base-v2');
+    expect(r.stdout).toContain('gbrain-investor');
   });
 
   test('schema show gbrain-base prints manifest details', () => {
@@ -97,6 +100,40 @@ describe('gbrain schema CLI (Phase C)', () => {
     expect(r.stdout).toContain('valid manifest');
   });
 
+  test('schema show/validate exposes bundled gbrain-recommended', () => {
+    const show = gbrain(['schema', 'show', 'gbrain-recommended']);
+    expect(show.code).toBe(0);
+    expect(show.stdout).toContain('gbrain-recommended v1.0.0');
+    expect(show.stdout).toContain('Page types (');
+    expect(show.stdout).toContain('meeting :: temporal');
+
+    const validate = gbrain(['schema', 'validate', 'gbrain-recommended']);
+    expect(validate.code).toBe(0);
+    expect(validate.stdout).toContain('valid manifest');
+  });
+
+  test('schema show exposes bundled gbrain-base-v2 successor pack', () => {
+    const r = gbrain(['schema', 'show', 'gbrain-base-v2']);
+    expect(r.code).toBe(0);
+    expect(r.stdout).toContain('gbrain-base-v2 v1.0.0');
+    expect(r.stdout).toContain('Page types (');
+    expect(r.stdout).toContain('Link verbs (14)');
+  });
+
+  test('schema active loads configured gbrain-recommended with real types', () => {
+    const home = mkdtempSync(join(tmpdir(), 'gbrain-schema-active-recommended-'));
+    try {
+      mkdirSync(join(home, '.gbrain'), { recursive: true });
+      writeFileSync(join(home, '.gbrain', 'config.json'), JSON.stringify({ schema_pack: 'gbrain-recommended' }), 'utf-8');
+      const r = gbrain(['schema', 'active'], { GBRAIN_HOME: home });
+      expect(r.code).toBe(0);
+      expect(r.stdout).toContain('Active pack: gbrain-recommended');
+      expect(r.stdout).not.toContain('Page types: 0');
+    } finally {
+      rmSync(home, { recursive: true, force: true });
+    }
+  });
+
   test('schema active reports default resolution', () => {
     const r = gbrain(['schema', 'active']);
     expect(r.code).toBe(0);

test/schema-pack-loader.test.ts

@@ -345,6 +345,34 @@ describe('YAML mini-parser', () => {
     expect(result.types[1].weight).toBe(2);
   });
 
+  test('parses block scalar without swallowing following keys', () => {
+    const yaml = `name: blocky
+description: |
+  First line.
+  Second line.
+page_types:
+  - name: meeting
+    primitive: temporal
+    path_prefixes:
+      - meetings/
+    aliases: []
+    extractable: true
+    expert_routing: false`;
+    const result = parseYamlMini(yaml) as { description: string; page_types: Array<Record<string, unknown>> };
+    expect(result.description).toBe('First line.\nSecond line.');
+    expect(result.page_types).toHaveLength(1);
+    expect(result.page_types[0].name).toBe('meeting');
+  });
+
+  test('block scalar keeps # as literal content, not a comment', () => {
+    const yaml = `description: |
+  See issue #2029 for context.
+name: hashy`;
+    const result = parseYamlMini(yaml) as Record<string, unknown>;
+    expect(result.description).toBe('See issue #2029 for context.');
+    expect(result.name).toBe('hashy');
+  });
+
   test('strips comments', () => {
     const result = parseYamlMini('# top comment\nname: value # inline comment') as Record<string, unknown>;
     expect(result.name).toBe('value');
@@ -374,6 +402,27 @@ extends: null`;
     const pack = loadPackFromString(json, 'fixture.json');
     expect(pack.name).toBe('json-pack');
   });
+
+  test('loads block-scalar pack descriptions without losing page types', () => {
+    const pack = loadPackFromString(`api_version: gbrain-schema-pack-v1
+name: recommended-fixture
+version: 1.0.0
+extends: gbrain-base
+description: |
+  Operational starter pack.
+page_types:
+  - name: meeting
+    primitive: temporal
+    path_prefixes:
+      - meetings/
+    aliases: []
+    extractable: true
+    expert_routing: false
+link_types: []`, 'fixture.yaml');
+    expect(pack.name).toBe('recommended-fixture');
+    expect(pack.extends).toBe('gbrain-base');
+    expect(pack.page_types.map((t) => t.name)).toContain('meeting');
+  });
 });
 
 describe('ReDoS guard', () => {

test/schema-pack-mutate.test.ts

@@ -103,7 +103,10 @@ describe('locateMutablePackFile — bundled guard', () => {
     expect(BUNDLED_PACK_NAMES.has('gbrain-recommended')).toBe(true);
     // v0.42 (T22): gbrain-base-v2 joins the bundled set.
     expect(BUNDLED_PACK_NAMES.has('gbrain-base-v2')).toBe(true);
-    expect(BUNDLED_PACK_NAMES.size).toBe(3);
+    // Derived from the single bundled registry — the lens packs (creator,
+    // investor, engineer, everything) are read-only too.
+    expect(BUNDLED_PACK_NAMES.has('gbrain-investor')).toBe(true);
+    expect(BUNDLED_PACK_NAMES.size).toBe(7);
   });
 
   it('rejects gbrain-base-v2 with PACK_READONLY (bundled guard)', () => {