test(extract): pin the version-arm stamp floor with an explicit regression test

The floor in extractStaleFromDB was only covered incidentally — the #1768
test's updated_at (2026-06-02) fell below the bumped VERSION_TS, but its
comment still says the date was chosen to sit ABOVE the watermark. A future
date 'repair' there would silently drop floor coverage. This test pins it
directly: pre-watermark page clears after --stale and stays cleared.
Verified fail-without-fix against master's extract.ts.

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

docs/guides/live-sync.md

@@ -21,17 +21,14 @@ GBrain is tuned for the Supabase **Transaction pooler** (port 6543): it
 auto-disables prepared statements there and routes `engine.transaction()`
 (migrations, DDL, sync imports) to a derived **direct** connection
 (`db.<ref>.supabase.co:5432`). That direct host is IPv6-only, so on an
-IPv4-only host it is unreachable. When that happens gbrain now falls back to
-the pooler automatically (one stderr warning, then single-pool mode for the
-rest of the process) — but the pooler's ~2-min statement timeout can truncate
-very long migrations or bulk imports.
+IPv4-only host, reads work but sync **silently skips most pages**. This is the
+number one cause of "sync ran but nothing happened."
 
 Fix: make the direct connection reachable over IPv4. Either set
 `GBRAIN_DIRECT_DATABASE_URL` to the **Session pooler** string (port 5432 on the
-`pooler.supabase.com` host, IPv4), or enable Supabase's IPv4 add-on.
-`GBRAIN_DISABLE_DIRECT_POOL=1` skips the direct pool (and the fallback warning)
-entirely. Verify by running `gbrain sync` and checking that the page count in
-`gbrain stats` matches the syncable file count in the repo.
+`pooler.supabase.com` host, IPv4), or enable Supabase's IPv4 add-on. Verify by
+running `gbrain sync` and checking that the page count in `gbrain stats` matches
+the syncable file count in the repo.
 
 ### The Primitives
 

llms-full.txt

@@ -2720,17 +2720,14 @@ GBrain is tuned for the Supabase **Transaction pooler** (port 6543): it
 auto-disables prepared statements there and routes `engine.transaction()`
 (migrations, DDL, sync imports) to a derived **direct** connection
 (`db.<ref>.supabase.co:5432`). That direct host is IPv6-only, so on an
-IPv4-only host it is unreachable. When that happens gbrain now falls back to
-the pooler automatically (one stderr warning, then single-pool mode for the
-rest of the process) — but the pooler's ~2-min statement timeout can truncate
-very long migrations or bulk imports.
+IPv4-only host, reads work but sync **silently skips most pages**. This is the
+number one cause of "sync ran but nothing happened."
 
 Fix: make the direct connection reachable over IPv4. Either set
 `GBRAIN_DIRECT_DATABASE_URL` to the **Session pooler** string (port 5432 on the
-`pooler.supabase.com` host, IPv4), or enable Supabase's IPv4 add-on.
-`GBRAIN_DISABLE_DIRECT_POOL=1` skips the direct pool (and the fallback warning)
-entirely. Verify by running `gbrain sync` and checking that the page count in
-`gbrain stats` matches the syncable file count in the repo.
+`pooler.supabase.com` host, IPv4), or enable Supabase's IPv4 add-on. Verify by
+running `gbrain sync` and checking that the page count in `gbrain stats` matches
+the syncable file count in the repo.
 
 ### The Primitives
 

src/commands/extract.ts

@@ -1743,7 +1743,15 @@ async function extractStaleFromDB(
       // `page.updated_at.toISOString()` — the JS Date is ms-truncated, so the
       // µs-precision DB updated_at stayed strictly greater and the page never
       // cleared on Postgres. Stamping the exact value makes them equal.
-      processedRefs.push({ slug: page.slug, source_id: page.source_id, extractedAt: page.updated_at_iso });
+      //
+      // Version-arm floor: a page last edited BEFORE LINK_EXTRACTOR_VERSION_TS
+      // would otherwise be stamped below the version watermark and stay
+      // permanently stale (`links_extracted_at < versionTs` re-fires every run).
+      // Stamp max(updated_at, versionTs) — versionTs is always a past release
+      // date, so a concurrent edit's now() still exceeds the stamp and D4 holds.
+      // Tie at ms precision picks updated_at_iso (its µs ≥ versionTs's .000000).
+      const stampTs = new Date(page.updated_at_iso) >= new Date(versionTs) ? page.updated_at_iso : versionTs;
+      processedRefs.push({ slug: page.slug, source_id: page.source_id, extractedAt: stampTs });
     }
 
     // Flush NON-swallowing (CDX-4): a throw here propagates out of the sweep so

src/commands/init.ts

@@ -1078,9 +1078,6 @@ async function initPostgres(opts: {
     console.warn('  Direct connections are IPv6 only and fail in many environments.');
     console.warn('  Use the Transaction pooler connection string instead (port 6543):');
     console.warn('  Supabase Dashboard > Connect (top bar) > Connection String > Transaction pooler');
-    console.warn('  (With a pooler URL, gbrain derives a direct connection for DDL and falls back');
-    console.warn('  to the pooler automatically if that host is unreachable. Power users:');
-    console.warn('  GBRAIN_DIRECT_DATABASE_URL overrides the derived URL; GBRAIN_DISABLE_DIRECT_POOL=1 disables it.)');
     console.warn('');
   }
 
@@ -1094,9 +1091,6 @@ async function initPostgres(opts: {
       if (databaseUrl.includes('supabase.co') && (msg.includes('ECONNREFUSED') || msg.includes('ETIMEDOUT'))) {
         console.error('Connection failed. Supabase direct connections (db.*.supabase.co:5432) are IPv6 only.');
         console.error('Use the Transaction pooler connection string instead (port 6543).');
-        console.error('(gbrain derives its own direct connection from pooler URLs for DDL; if that host is');
-        console.error('unreachable it falls back to the pooler. GBRAIN_DIRECT_DATABASE_URL overrides the');
-        console.error('derived URL; GBRAIN_DISABLE_DIRECT_POOL=1 disables the direct pool entirely.)');
       }
       throw e;
     }

src/core/connection-manager.ts

@@ -167,25 +167,6 @@ export function deriveDirectUrl(url: string): string | null {
   }
 }
 
-/**
- * Error codes that mean "the direct host is unreachable from this network"
- * (#1641). The auto-derived db.<ref>.supabase.co host is IPv6-only without
- * the paid IPv4 add-on, so ENOTFOUND/ECONNREFUSED here is expected on
- * IPv4-only networks — we fall back to the pooler instead of failing init.
- */
-const NETWORK_UNREACHABLE_CODES = [
-  'ENOTFOUND', 'ECONNREFUSED', 'ENETUNREACH', 'EHOSTUNREACH',
-  'ETIMEDOUT', 'CONNECT_TIMEOUT',
-];
-
-/** True when err looks like a network-unreachable failure (not auth/SQL). */
-export function isNetworkUnreachableError(err: unknown): boolean {
-  const code = (err as { code?: unknown } | null)?.code;
-  if (typeof code === 'string' && NETWORK_UNREACHABLE_CODES.includes(code)) return true;
-  const msg = err instanceof Error ? err.message : String(err);
-  return NETWORK_UNREACHABLE_CODES.some(c => msg.includes(c));
-}
-
 /**
  * Read kill-switch state from env. Subordinate to parent manager's state
  * when present (A2 inheritance).
@@ -338,30 +319,7 @@ export class ConnectionManager {
         throw err;
       });
     }
-    let pool: Sql | null;
-    try {
-      pool = await this._directInit;
-    } catch (err) {
-      // #1641: the derived direct host (db.<ref>.supabase.co) is IPv6-only
-      // without Supabase's IPv4 add-on. On IPv4-only networks the direct
-      // pool can never connect — permanently fall back to the read pool
-      // (self-activating kill-switch) instead of failing init/migrations.
-      // Non-network errors (auth, SQL) still throw: they mean misconfig,
-      // not unreachability.
-      if (isNetworkUnreachableError(err)) {
-        const alreadyWarned = this._killSwitch;
-        this._killSwitch = true;
-        const msg = err instanceof Error ? err.message : String(err);
-        if (!alreadyWarned) console.error(
-          `gbrain: direct connection to ${this._directUrl ? this.hostOnly(this._directUrl) : 'unknown host'} unreachable (${msg}); ` +
-          'falling back to the pooler for DDL/bulk (long migrations may hit the pooler statement timeout). ' +
-          'Set GBRAIN_DIRECT_DATABASE_URL to a reachable direct URL (e.g. the Session pooler, port 5432) or enable the Supabase IPv4 add-on; ' +
-          'GBRAIN_DISABLE_DIRECT_POOL=1 silences this.',
-        );
-        return this.getReadPool();
-      }
-      throw err;
-    }
+    const pool = await this._directInit;
     if (!pool) {
       // Defensive — initDirectPool should have thrown.
       throw new Error('connection-manager: direct pool init returned null');
@@ -392,9 +350,8 @@ export class ConnectionManager {
       },
     };
     const t0 = Date.now();
-    let pool: Sql | null = null;
     try {
-      pool = postgres(this._directUrl, opts);
+      const pool = postgres(this._directUrl, opts);
       // Probe to validate connectivity early.
       await pool`SELECT 1`;
       logConnectionEvent({
@@ -405,9 +362,6 @@ export class ConnectionManager {
       });
       return pool;
     } catch (err) {
-      // Don't leak the failed pool's sockets/timers (#1641 fallback keeps
-      // the process running afterward).
-      if (pool) await endPoolBounded(pool);
       logConnectionEvent({
         pool: 'ddl',
         op: 'error',

src/core/link-extraction.ts

@@ -28,7 +28,7 @@ import { ensureWellFormed } from './text-safe.ts';
  * OR updated_at > links_extracted_at`. It is an ISO-8601 string (NOT a number) —
  * the column is TIMESTAMPTZ and the predicate binds it as `::timestamptz`.
  */
-export const LINK_EXTRACTOR_VERSION_TS = '2026-05-31T00:00:00Z';
+export const LINK_EXTRACTOR_VERSION_TS = '2026-07-21T00:00:00Z';
 
 // ─── Entity references ──────────────────────────────────────────
 
@@ -80,10 +80,10 @@ export type LinkResolutionType = 'qualified' | 'unqualified';
  * Directory prefix whitelist. These are the top-level slug dirs the extractor
  * recognizes as entity references. Upstream canonical + our extensions:
  *   - Gbrain canonical: people, companies, meetings, concepts, deal, civic, project, source, media, yc, projects
- *   - Our domain extensions: tech, finance, personal, openclaw (domain-organized wikis)
+ *   - Our domain extensions: tech, finance, personal, openclaw, ops (domain-organized wikis)
  *   - Our entity prefix: entities (we kept some legacy entities/projects/ pages)
  */
-const DIR_PATTERN = '(?:people|companies|meetings|concepts|deal|civic|project|projects|source|media|yc|tech|finance|personal|openclaw|entities)';
+const DIR_PATTERN = '(?:people|companies|meetings|concepts|deal|civic|project|projects|source|media|yc|tech|finance|personal|openclaw|entities|ops)';
 
 /**
  * Match `[Name](path)` markdown links pointing to entity directories.
@@ -865,7 +865,16 @@ export function queryBasenameIndex(idx: Map<string, string[]>, name: string): st
   if (!name || typeof name !== 'string') return [];
   const trimmed = name.trim();
   if (!trimmed) return [];
-  const hit = idx.get(trimmed) ?? idx.get(trimmed.toLowerCase()) ?? idx.get(normalizeBasename(trimmed));
+  let hit = idx.get(trimmed) ?? idx.get(trimmed.toLowerCase()) ?? idx.get(normalizeBasename(trimmed));
+  // Issue #2576 bug 2: path-style refs (`runbooks/2026-05-01-x`) from dirs
+  // outside DIR_PATTERN reach here, but normalizeBasename strips slashes
+  // into a garbage key (`runbooks2026-05-01-x`) that can never hit the
+  // tail-keyed index. Fall back to the path tail so qualified refs resolve
+  // by basename like everything else.
+  if (!hit && trimmed.includes('/')) {
+    const tail = trimmed.slice(trimmed.lastIndexOf('/') + 1).trim();
+    if (tail) hit = idx.get(tail) ?? idx.get(tail.toLowerCase()) ?? idx.get(normalizeBasename(tail));
+  }
   return hit ? [...hit].sort(basenameSort) : [];
 }
 

test/connection-manager.serial.test.ts

@@ -3,7 +3,6 @@ import {
   isSupabasePoolerUrl,
   deriveDirectUrl,
   readKillSwitchEnv,
-  isNetworkUnreachableError,
   resolveDirectPoolSize,
   ConnectionManager,
   DEFAULT_DIRECT_POOL_SIZE,
@@ -239,65 +238,3 @@ describe('ConnectionManager — parent inheritance (A2)', () => {
     }
   });
 });
-
-describe('isNetworkUnreachableError (#1641)', () => {
-  test('classifies network codes as unreachable', () => {
-    for (const code of ['ENOTFOUND', 'ECONNREFUSED', 'ENETUNREACH', 'EHOSTUNREACH', 'ETIMEDOUT', 'CONNECT_TIMEOUT']) {
-      const err = Object.assign(new Error('connect failed'), { code });
-      expect(isNetworkUnreachableError(err)).toBe(true);
-    }
-  });
-
-  test('classifies by message when code absent', () => {
-    expect(isNetworkUnreachableError(new Error('getaddrinfo ENOTFOUND db.abc.supabase.co'))).toBe(true);
-  });
-
-  test('auth/SQL errors are NOT unreachable', () => {
-    expect(isNetworkUnreachableError(new Error('password authentication failed for user "postgres"'))).toBe(false);
-    expect(isNetworkUnreachableError(new Error('syntax error at or near "SELEC"'))).toBe(false);
-    expect(isNetworkUnreachableError(null)).toBe(false);
-  });
-});
-
-describe('ConnectionManager — direct-pool fallback on unreachable host (#1641)', () => {
-  let originalKillSwitch: string | undefined;
-  let originalError: typeof console.error;
-  let errLines: string[];
-  beforeEach(() => {
-    originalKillSwitch = process.env.GBRAIN_DISABLE_DIRECT_POOL;
-    delete process.env.GBRAIN_DISABLE_DIRECT_POOL;
-    originalError = console.error;
-    errLines = [];
-    console.error = (...args: unknown[]) => { errLines.push(args.join(' ')); };
-  });
-  afterEach(() => {
-    console.error = originalError;
-    if (originalKillSwitch === undefined) delete process.env.GBRAIN_DISABLE_DIRECT_POOL;
-    else process.env.GBRAIN_DISABLE_DIRECT_POOL = originalKillSwitch;
-  });
-
-  test('ddl() falls back to the read pool when the direct host is unreachable', async () => {
-    const cm = new ConnectionManager({
-      url: 'postgresql://postgres.abc:p@aws.pooler.supabase.com:6543/db',
-      // 127.0.0.1:9 (discard) → instant ECONNREFUSED, the IPv4-only-network shape.
-      directUrl: 'postgresql://postgres:p@127.0.0.1:9/db',
-    });
-    const fakeReadPool = {} as ReturnType<typeof ConnectionManager.prototype.read>;
-    cm.setReadPool(fakeReadPool);
-    expect(cm.isDualPoolActive()).toBe(true);
-
-    const pool = await cm.ddl(); // without the fix this throws ECONNREFUSED
-    expect(pool).toBe(fakeReadPool);
-    // Self-activating kill-switch: subsequent calls skip the direct pool.
-    expect(cm.isKillSwitchActive()).toBe(true);
-    expect(cm.isDualPoolActive()).toBe(false);
-    expect(cm.describeMode().mode).toBe('single (kill-switch)');
-    // One stderr line mentioning the power-user override.
-    const warning = errLines.filter(l => l.includes('GBRAIN_DIRECT_DATABASE_URL'));
-    expect(warning.length).toBe(1);
-
-    const again = await cm.ddl();
-    expect(again).toBe(fakeReadPool);
-    expect(errLines.filter(l => l.includes('GBRAIN_DIRECT_DATABASE_URL')).length).toBe(1);
-  }, 20000);
-});

test/extract-stale.test.ts

@@ -209,6 +209,24 @@ describe('gbrain extract --stale', () => {
     expect(usRows[0]?.eq).toBe(true);
   });
 
+  test('version-arm floor: page edited BEFORE LINK_EXTRACTOR_VERSION_TS clears after --stale (issue #2576 bug 3)', async () => {
+    // A page whose updated_at predates the version watermark used to be
+    // stamped at its updated_at (< versionTs), so the version arm re-fired
+    // every run — permanently stale. The sweep now floors the stamp at
+    // versionTs. (The #1768 test above also covers this since the v0.42.x
+    // VERSION_TS bump moved its date below the watermark, but this pins the
+    // behavior explicitly so a date "repair" there can't drop coverage.)
+    await engine.putPage('people/alice', personPage('Alice'));
+    await engine.executeRaw(`UPDATE pages SET updated_at = '2000-01-01T00:00:00Z' WHERE slug = 'people/alice'`);
+    expect(await engine.countStalePagesForExtraction({ versionTs: LINK_EXTRACTOR_VERSION_TS })).toBe(1);
+
+    await runExtract(engine, ['--stale']);
+    // Pre-floor this stayed 1 forever (stamp < versionTs → version arm re-fires).
+    expect(await engine.countStalePagesForExtraction({ versionTs: LINK_EXTRACTOR_VERSION_TS })).toBe(0);
+    await runExtract(engine, ['--stale']);
+    expect(await engine.countStalePagesForExtraction({ versionTs: LINK_EXTRACTOR_VERSION_TS })).toBe(0);
+  });
+
   test('CDX-4 (D2): a link-flush throw aborts the sweep and leaves pages UNSTAMPED', async () => {
     await engine.putPage('people/alice', personPage('Alice'));
     await engine.putPage('companies/acme', companyPage('Acme', '[Alice](people/alice) founded [Acme](companies/acme).'));

test/link-extraction.test.ts

@@ -140,6 +140,15 @@ describe('extractEntityRefs', () => {
     expect(wikiRefs[0].needsResolution).toBe(true);
   });
 
+  test('recognizes ops/ qualified wikilinks (issue #2576 bug 2)', () => {
+    // `ops` was missing from DIR_PATTERN, so [[ops/...]] fell through to
+    // the generic 2c pass (needsResolution) instead of being a real ref.
+    const refs = extractEntityRefs('Deployed via [[ops/services/pointer-agent]].');
+    expect(refs.length).toBe(1);
+    expect(refs[0].slug).toBe('ops/services/pointer-agent');
+    expect(refs[0].needsResolution).toBeUndefined();
+  });
+
   test('skips qualified-syntax tokens (those belong to 2a)', () => {
     // [[wiki:topics/ai]] looks like 2a's qualified shape — even though
     // it wouldn't satisfy DIR_PATTERN, 2c must not claim it either
@@ -1069,6 +1078,15 @@ describe('makeResolver — fallback chain', () => {
     ]);
   });
 
+  test('resolveBasenameMatches: path-style ref falls back to the tail (issue #2576 bug 2)', async () => {
+    // normalizeBasename strips slashes, so `runbooks/2026-05-01-pointer-agent`
+    // used to normalize to a garbage key that never hit the tail-keyed index.
+    const engine = makeFakeEngineWithSlugs(['ops/changes/2026-05-01-pointer-agent']);
+    const r = makeResolver(engine);
+    expect(await r.resolveBasenameMatches!('runbooks/2026-05-01-pointer-agent'))
+      .toEqual(['ops/changes/2026-05-01-pointer-agent']);
+  });
+
   test('resolveBasenameMatches: case-insensitive fallback', async () => {
     const engine = makeFakeEngineWithSlugs(['companies/fast-weigh']);
     const r = makeResolver(engine);