fix(admin): regenerate admin-embedded manifest for rebuilt SPA bundle

The Sources-tab rebuild replaced admin/dist/assets/index-CoGEje3-.js with index-BpDk4NI4.js but src/admin-embedded.ts (generated by scripts/build-admin-embedded.ts) still imported the deleted file, so 'gbrain serve --http' crashed on startup (Cannot find module) and all 4 admin-embed E2E serial tests failed with 'never became ready'. Regenerated via: bun run scripts/build-admin-embedded.ts Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
feat(admin): Sources tab + federation management UI
2026-08-15 01:12:20 +00:00 · 2026-07-22 11:01:15 -07:00 · 2026-07-21 14:33:21 -07:00 · 2026-07-21 14:28:25 -07:00
22 changed files with 1904 additions and 434 deletions
@@ -7,7 +7,7 @@
  <link rel="preconnect" href="https://fonts.googleapis.com" />
  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet" />
-  <script type="module" crossorigin src="/admin/assets/index-CoGEje3-.js"></script>
+  <script type="module" crossorigin src="/admin/assets/index-BpDk4NI4.js"></script>
  <link rel="stylesheet" crossorigin href="/admin/assets/index-GxkWX7v3.css">
 </head>
 <body>
@@ -5,13 +5,14 @@ import { AgentsPage } from './pages/Agents';
 import { RequestLogPage } from './pages/RequestLog';
 import { CalibrationPage } from './pages/Calibration';
 import { JobsWatchPage } from './pages/JobsWatch';
+import { SourcesPage } from './pages/Sources';
 import { api } from './api';

-type Page = 'login' | 'dashboard' | 'agents' | 'log' | 'calibration' | 'jobs';
+type Page = 'login' | 'dashboard' | 'agents' | 'sources' | 'log' | 'calibration' | 'jobs';

 function getPage(): Page {
  const hash = window.location.hash.replace('#', '') || 'dashboard';
-  if (['login', 'dashboard', 'agents', 'log', 'calibration', 'jobs'].includes(hash)) return hash as Page;
+  if (['login', 'dashboard', 'agents', 'sources', 'log', 'calibration', 'jobs'].includes(hash)) return hash as Page;
  return 'dashboard';
 }

@@ -54,6 +55,8 @@ export function App() {
             onClick={() => navigate('dashboard')}>Dashboard</a>
          <a className={`nav-item ${page === 'agents' ? 'active' : ''}`}
             onClick={() => navigate('agents')}>Agents</a>
+          <a className={`nav-item ${page === 'sources' ? 'active' : ''}`}
+             onClick={() => navigate('sources')}>Sources</a>
          <a className={`nav-item ${page === 'log' ? 'active' : ''}`}
             onClick={() => navigate('log')}>Request Log</a>
          <a className={`nav-item ${page === 'calibration' ? 'active' : ''}`}
@@ -83,6 +86,7 @@ export function App() {
      <main className="main">
        {page === 'dashboard' && <DashboardPage />}
        {page === 'agents' && <AgentsPage />}
+        {page === 'sources' && <SourcesPage />}
        {page === 'log' && <RequestLogPage />}
        {page === 'calibration' && <CalibrationPage />}
        {page === 'jobs' && <JobsWatchPage />}
@@ -52,4 +52,22 @@ export const api = {
    apiFetchText(`/admin/api/calibration/charts/${encodeURIComponent(type)}${holder ? `?holder=${encodeURIComponent(holder)}` : ''}`),
  // v0.41 D2 — live minion-jobs dashboard snapshot.
  jobsWatch: () => apiFetch('/admin/api/jobs/watch'),
+  // v0.41.29 Sources tab + federated-read management
+  sources: () => apiFetch('/admin/api/sources'),
+  agentsFederatedRead: () => apiFetch('/admin/api/agents/federated-read'),
+  grantRead: (clientId: string, sourceId: string) =>
+    apiFetch(`/admin/api/agents/${encodeURIComponent(clientId)}/grant-read`, {
+      method: 'POST',
+      body: JSON.stringify({ source_id: sourceId }),
+    }),
+  revokeRead: (clientId: string, sourceId: string) =>
+    apiFetch(`/admin/api/agents/${encodeURIComponent(clientId)}/revoke-read`, {
+      method: 'POST',
+      body: JSON.stringify({ source_id: sourceId }),
+    }),
+  setFederatedRead: (clientId: string, sourceIds: string[]) =>
+    apiFetch(`/admin/api/agents/${encodeURIComponent(clientId)}/set-federated-read`, {
+      method: 'POST',
+      body: JSON.stringify({ source_ids: sourceIds }),
+    }),
 };
@@ -381,8 +381,16 @@ function CredentialsModal({ credentials, onClose }: {
  );
 }

+interface FederationState {
+  source_id: string | null;
+  federated_read: string[];
+}
+
 function AgentDrawer({ agent, onClose, onRevoked }: { agent: Agent; onClose: () => void; onRevoked: () => void }) {
  const [tab, setTab] = useState<'claude-code' | 'chatgpt' | 'claude-cowork' | 'perplexity' | 'cursor' | 'json'>('claude-code');
+  const [federation, setFederation] = useState<FederationState | null>(null);
+  const [allSources, setAllSources] = useState<string[]>([]);
+  const [showFederation, setShowFederation] = useState(false);
  const copy = (text: string) => navigator.clipboard.writeText(text);
  const serverUrl = window.location.origin;

@@ -390,6 +398,30 @@ function AgentDrawer({ agent, onClose, onRevoked }: { agent: Agent; onClose: ()
  const isOAuth = agent.auth_type === 'oauth';
  const agentName = agent.name || agent.client_name || 'unknown';

+  // Lazy-load federation state when the drawer opens for an OAuth client.
+  // The /admin/api/agents endpoint doesn't carry source_id / federated_read,
+  // so we fetch /admin/api/agents/federated-read separately and pair by id.
+  useEffect(() => {
+    if (!isOAuth || !cid) return;
+    let cancelled = false;
+    Promise.all([
+      api.agentsFederatedRead().catch(() => ({ clients: [] })),
+      api.sources().catch(() => ({ sources: [] })),
+    ]).then(([feds, srcs]: any) => {
+      if (cancelled) return;
+      const me = (feds.clients || []).find((c: any) => c.client_id === cid);
+      setFederation(me ? { source_id: me.source_id, federated_read: me.federated_read || [] } : null);
+      setAllSources((srcs.sources || []).map((s: any) => s.source_id));
+    });
+    return () => { cancelled = true; };
+  }, [cid, isOAuth]);
+
+  const reloadFederation = async () => {
+    const feds: any = await api.agentsFederatedRead().catch(() => ({ clients: [] }));
+    const me = (feds.clients || []).find((c: any) => c.client_id === cid);
+    setFederation(me ? { source_id: me.source_id, federated_read: me.federated_read || [] } : null);
+  };
+
  // For API keys, we can't show the actual token (it was shown once at creation).
  // For OAuth, we show the client_id and tell them to use their secret.

@@ -553,6 +585,34 @@ function AgentDrawer({ agent, onClose, onRevoked }: { agent: Agent; onClose: ()
          <span>{agent.token_ttl ? (agent.token_ttl >= 31536000 ? 'No expiry' : agent.token_ttl >= 86400 ? `${Math.floor(agent.token_ttl / 86400)}d` : agent.token_ttl >= 3600 ? `${Math.floor(agent.token_ttl / 3600)}h` : `${agent.token_ttl}s`) : '1h (default)'}</span>
        </div>

+        {isOAuth && federation && (
+          <>
+            <div className="section-title" style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between' }}>
+              <span>Federation</span>
+              <button
+                className="btn btn-secondary"
+                style={{ padding: '4px 10px', fontSize: 12 }}
+                onClick={() => setShowFederation(true)}
+              >
+                Manage reads
+              </button>
+            </div>
+            <div style={{ display: 'grid', gridTemplateColumns: '120px 1fr', gap: '6px 12px', fontSize: 13 }}>
+              <span style={{ color: 'var(--text-secondary)' }}>Write source</span>
+              <span className="mono">{federation.source_id || '(none)'}</span>
+              <span style={{ color: 'var(--text-secondary)' }}>Federated reads</span>
+              <span style={{ fontSize: 12 }}>
+                {federation.federated_read.length === 0
+                  ? <span style={{ color: 'var(--text-muted)' }}>(empty — no federated reads)</span>
+                  : federation.federated_read.map((s) => (
+                      <span key={s} className="badge badge-read" style={{ marginRight: 4, marginBottom: 2 }}>{s}</span>
+                    ))
+                }
+              </span>
+            </div>
+          </>
+        )}
+
        {/*
          Config Export visible for both auth_type=oauth AND auth_type=api_key.
          Claude Code + Cursor + JSON tabs render real snippets regardless
@@ -628,6 +688,142 @@ function AgentDrawer({ agent, onClose, onRevoked }: { agent: Agent; onClose: ()
          )}
        </div>
      </div>
+
+      {showFederation && federation && (
+        <FederationModal
+          clientId={cid}
+          clientName={agentName}
+          allSources={allSources}
+          currentReads={federation.federated_read}
+          writeSource={federation.source_id}
+          onClose={() => setShowFederation(false)}
+          onSaved={async () => {
+            await reloadFederation();
+            setShowFederation(false);
+          }}
+        />
+      )}
    </>
  );
 }
+
+/**
+ * FederationModal — admin counterpart of `gbrain auth set-federated-read`.
+ * Source checkbox list; "Save" submits the full new list via the
+ * race-safe atomic SQL path in setFederatedReadCore. Per the CLI's
+ * documented contract, this is wholesale-replace semantics — concurrent
+ * grant/revoke from a CLI operator would be last-writer-wins against
+ * a Save here.
+ */
+function FederationModal({
+  clientId, clientName, allSources, currentReads, writeSource, onClose, onSaved,
+}: {
+  clientId: string;
+  clientName: string;
+  allSources: string[];
+  currentReads: string[];
+  writeSource: string | null;
+  onClose: () => void;
+  onSaved: () => Promise<void> | void;
+}) {
+  const [selected, setSelected] = useState<Set<string>>(new Set(currentReads));
+  const [saving, setSaving] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  const toggle = (id: string) => {
+    const next = new Set(selected);
+    if (next.has(id)) next.delete(id); else next.add(id);
+    setSelected(next);
+  };
+
+  const handleSave = async () => {
+    setSaving(true);
+    setError(null);
+    try {
+      await api.setFederatedRead(clientId, Array.from(selected));
+      await onSaved();
+    } catch (e: any) {
+      setError(e.message || 'save failed');
+      setSaving(false);
+    }
+  };
+
+  // Union: all known sources + any current reads not in the source list
+  // (e.g. orphan entries from before the source was deleted). The latter
+  // surface as "(missing source)" so operators can revoke them.
+  const allKnown = new Set([...allSources, ...currentReads]);
+  const ordered = Array.from(allKnown).sort();
+
+  return (
+    <div className="modal-overlay" onClick={onClose}>
+      <div className="modal" onClick={(e) => e.stopPropagation()} style={{ maxWidth: 520 }}>
+        <div className="modal-header">
+          <div style={{ fontSize: 16, fontWeight: 600 }}>Manage federated reads</div>
+          <div style={{ fontSize: 13, color: 'var(--text-secondary)', marginTop: 4 }}>
+            <strong>{clientName}</strong> — pick which sources this client can read in addition to its
+            {writeSource ? <> write source <code className="mono">{writeSource}</code></> : <> write source</>}.
+          </div>
+        </div>
+        <div className="modal-body" style={{ maxHeight: '50vh', overflowY: 'auto' }}>
+          {ordered.length === 0 && (
+            <div style={{ color: 'var(--text-muted)', fontSize: 13 }}>
+              No sources registered. Use <code>gbrain sources add &lt;id&gt; --path &lt;dir&gt;</code> from the CLI first.
+            </div>
+          )}
+          {ordered.map((id) => {
+            const isOrphan = !allSources.includes(id);
+            const isWriteSource = id === writeSource;
+            return (
+              <label
+                key={id}
+                style={{
+                  display: 'flex',
+                  alignItems: 'center',
+                  gap: 10,
+                  padding: '8px 10px',
+                  borderBottom: '1px solid var(--border)',
+                  cursor: 'pointer',
+                  fontSize: 13,
+                }}
+              >
+                <input
+                  type="checkbox"
+                  checked={selected.has(id)}
+                  onChange={() => toggle(id)}
+                  style={{ width: 16, height: 16, margin: 0, flexShrink: 0, cursor: 'pointer' }}
+                />
+                <span className="mono" style={{ flex: 1, minWidth: 0, overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>{id}</span>
+                {isWriteSource && <span className="badge badge-write" style={{ fontSize: 10, flexShrink: 0 }}>write source</span>}
+                {isOrphan && <span className="badge badge-danger" style={{ fontSize: 10, flexShrink: 0 }}>missing source</span>}
+              </label>
+            );
+          })}
+        </div>
+        {error && (
+          <div style={{
+            background: 'rgba(239,68,68,0.08)',
+            border: '1px solid rgba(239,68,68,0.3)',
+            color: '#ef4444',
+            padding: '10px 12px',
+            borderRadius: 6,
+            margin: '12px 0',
+            fontSize: 12,
+          }}>
+            {error}
+          </div>
+        )}
+        <div className="modal-footer">
+          <button type="button" className="btn btn-secondary" onClick={onClose} disabled={saving}>Cancel</button>
+          <button
+            type="button"
+            className="btn btn-primary"
+            onClick={handleSave}
+            disabled={saving}
+          >
+            {saving ? 'Saving…' : `Save (${selected.size} source${selected.size === 1 ? '' : 's'})`}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}
@@ -0,0 +1,195 @@
+import React, { useState, useEffect } from 'react';
+import { api } from '../api';
+
+interface SourceRow {
+  source_id: string;
+  name: string;
+  local_path: string | null;
+  sync_enabled: boolean;
+  last_sync_at: string | null;
+  staleness_hours: number | null;
+  staleness_class: 'fresh' | 'stale' | 'severe' | 'unknown';
+  last_commit: string | null;
+  pages: number;
+  chunks_total: number;
+  chunks_unembedded: number;
+  embedding_coverage_pct: number;
+}
+
+interface FederatedClient {
+  client_id: string;
+  client_name: string;
+  source_id: string | null;
+  federated_read: string[];
+}
+
+function timeAgo(iso: string | null): string {
+  if (!iso) return 'never';
+  const s = Math.floor((Date.now() - new Date(iso).getTime()) / 1000);
+  if (s < 0) return 'in the future?';
+  if (s < 60) return 'just now';
+  if (s < 3600) return `${Math.floor(s / 60)}m ago`;
+  if (s < 86400) return `${Math.floor(s / 3600)}h ago`;
+  return `${Math.floor(s / 86400)}d ago`;
+}
+
+function stalenessColor(cls: string): string {
+  switch (cls) {
+    case 'fresh': return '#4ade80';
+    case 'stale': return '#fbbf24';
+    case 'severe': return '#ef4444';
+    default: return 'var(--text-muted)';
+  }
+}
+
+function coverageColor(pct: number): string {
+  if (pct >= 99) return '#4ade80';
+  if (pct >= 90) return '#fbbf24';
+  return '#ef4444';
+}
+
+export function SourcesPage() {
+  const [sources, setSources] = useState<SourceRow[]>([]);
+  const [clients, setClients] = useState<FederatedClient[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+
+  const load = async () => {
+    setLoading(true);
+    setError(null);
+    try {
+      const [srcReport, clientsResp] = await Promise.all([
+        api.sources(),
+        api.agentsFederatedRead(),
+      ]);
+      setSources(srcReport.sources || []);
+      setClients(clientsResp.clients || []);
+    } catch (e: any) {
+      setError(e.message || 'load failed');
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  useEffect(() => { load(); }, []);
+
+  // Reverse-lookup: for each source, which clients can read it?
+  const readersBySource = (sourceId: string): string[] =>
+    clients.filter((c) => c.federated_read.includes(sourceId)).map((c) => c.client_name);
+
+  // Reverse-lookup: which clients WRITE to this source (source_id == sourceId)?
+  const writersBySource = (sourceId: string): string[] =>
+    clients.filter((c) => c.source_id === sourceId).map((c) => c.client_name);
+
+  return (
+    <div style={{ padding: 24, maxWidth: 1200 }}>
+      <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', marginBottom: 24 }}>
+        <h1 style={{ fontSize: 24, margin: 0 }}>Sources</h1>
+        <button
+          onClick={load}
+          style={{
+            background: 'transparent',
+            border: '1px solid var(--border)',
+            color: 'var(--text-secondary)',
+            padding: '6px 12px',
+            borderRadius: 6,
+            fontSize: 12,
+            cursor: 'pointer',
+          }}
+        >
+          Refresh
+        </button>
+      </div>
+
+      {loading && <div style={{ color: 'var(--text-muted)' }}>Loading…</div>}
+      {error && (
+        <div style={{
+          background: 'rgba(239,68,68,0.08)',
+          border: '1px solid rgba(239,68,68,0.3)',
+          color: '#ef4444',
+          padding: 12,
+          borderRadius: 6,
+          marginBottom: 16,
+          fontSize: 13,
+        }}>
+          Failed to load sources: {error}
+        </div>
+      )}
+
+      {!loading && !error && sources.length === 0 && (
+        <div style={{ color: 'var(--text-muted)', padding: 16 }}>
+          No active sources with a local_path. Use{' '}
+          <code style={{ background: 'var(--bg-elevated)', padding: '2px 6px', borderRadius: 4 }}>
+            gbrain sources add &lt;id&gt; --path &lt;dir&gt;
+          </code>{' '}
+          to register one.
+        </div>
+      )}
+
+      {!loading && !error && sources.length > 0 && (
+        <div style={{ overflowX: 'auto' }}>
+          <table style={{ width: '100%', borderCollapse: 'collapse', fontSize: 13 }}>
+            <thead>
+              <tr style={{ borderBottom: '1px solid var(--border)', textAlign: 'left', color: 'var(--text-muted)' }}>
+                <th style={{ padding: '10px 12px' }}>ID</th>
+                <th style={{ padding: '10px 12px', textAlign: 'right' }}>Pages</th>
+                <th style={{ padding: '10px 12px', textAlign: 'right' }}>Chunks</th>
+                <th style={{ padding: '10px 12px', textAlign: 'right' }}>Embed%</th>
+                <th style={{ padding: '10px 12px' }}>Last Sync</th>
+                <th style={{ padding: '10px 12px' }}>Writers</th>
+                <th style={{ padding: '10px 12px' }}>Readers (federated)</th>
+              </tr>
+            </thead>
+            <tbody>
+              {sources.map((s) => {
+                const readers = readersBySource(s.source_id);
+                const writers = writersBySource(s.source_id);
+                return (
+                  <tr key={s.source_id} style={{ borderBottom: '1px solid var(--border)' }}>
+                    <td style={{ padding: '10px 12px', fontFamily: 'JetBrains Mono, monospace' }}>
+                      <div>{s.source_id}</div>
+                      {s.name !== s.source_id && (
+                        <div style={{ fontSize: 11, color: 'var(--text-muted)', fontFamily: 'inherit' }}>{s.name}</div>
+                      )}
+                    </td>
+                    <td style={{ padding: '10px 12px', textAlign: 'right', fontFamily: 'JetBrains Mono, monospace' }}>{s.pages.toLocaleString()}</td>
+                    <td style={{ padding: '10px 12px', textAlign: 'right', fontFamily: 'JetBrains Mono, monospace' }}>{s.chunks_total.toLocaleString()}</td>
+                    <td style={{ padding: '10px 12px', textAlign: 'right', color: coverageColor(s.embedding_coverage_pct), fontFamily: 'JetBrains Mono, monospace' }}>
+                      {s.embedding_coverage_pct.toFixed(0)}%
+                    </td>
+                    <td style={{ padding: '10px 12px', color: s.local_path == null ? 'var(--text-muted)' : stalenessColor(s.staleness_class) }}>
+                      {s.local_path == null ? 'push-only' : timeAgo(s.last_sync_at)}
+                    </td>
+                    <td style={{ padding: '10px 12px', fontSize: 12, color: 'var(--text-secondary)' }}>
+                      {writers.length === 0 ? <span style={{ color: 'var(--text-muted)' }}>none</span> : writers.join(', ')}
+                    </td>
+                    <td style={{ padding: '10px 12px', fontSize: 12, color: 'var(--text-secondary)' }}>
+                      {readers.length === 0 ? <span style={{ color: 'var(--text-muted)' }}>none</span> : readers.join(', ')}
+                    </td>
+                  </tr>
+                );
+              })}
+            </tbody>
+          </table>
+        </div>
+      )}
+
+      <div style={{
+        marginTop: 24,
+        padding: 12,
+        background: 'var(--bg-elevated)',
+        border: '1px solid var(--border)',
+        borderRadius: 6,
+        fontSize: 12,
+        color: 'var(--text-muted)',
+        lineHeight: 1.6,
+      }}>
+        <strong style={{ color: 'var(--text-secondary)' }}>Two scopes per OAuth client:</strong>{' '}
+        <em>Writers</em> = clients with this source as their <code>source_id</code> (write authority).{' '}
+        <em>Readers</em> = clients with this source in their <code>federated_read</code> list (read access via federation).
+        Manage federation per-client from the <a href="#agents" style={{ color: '#60a5fa' }}>Agents</a> tab using the
+        "Manage reads" action.
+      </div>
+    </div>
+  );
+}
@@ -1,13 +1,13 @@
 // AUTO-GENERATED — do not edit by hand.
 // Run `bun run scripts/build-admin-embedded.ts` to regenerate.
-// Source: admin/dist/ at 2026-05-27.
+// Source: admin/dist/ at 2026-07-22.
 //
 // Bun resolves the file: imports to a path that works at runtime even
 // inside a compiled binary (`bun build --compile`). The manifest maps
 // the request path the express handler sees to (resolved-path, mime).

 // @ts-ignore — type: 'file' is Bun ESM, not in lib.d.ts
-import A_0_assets_index_CoGEje3__js from '../admin/dist/assets/index-CoGEje3-.js' with { type: 'file' };
+import A_0_assets_index_BpDk4NI4_js from '../admin/dist/assets/index-BpDk4NI4.js' with { type: 'file' };
 // @ts-ignore — type: 'file' is Bun ESM, not in lib.d.ts
 import A_1_assets_index_GxkWX7v3_css from '../admin/dist/assets/index-GxkWX7v3.css' with { type: 'file' };
 // @ts-ignore — type: 'file' is Bun ESM, not in lib.d.ts
@@ -19,7 +19,7 @@ export interface AdminAsset {
 }

 export const ADMIN_ASSETS: Record<string, AdminAsset> = {
-  "/admin/assets/index-CoGEje3-.js": { path: A_0_assets_index_CoGEje3__js as unknown as string, mime: "application/javascript; charset=utf-8" },
+  "/admin/assets/index-BpDk4NI4.js": { path: A_0_assets_index_BpDk4NI4_js as unknown as string, mime: "application/javascript; charset=utf-8" },
  "/admin/assets/index-GxkWX7v3.css": { path: A_1_assets_index_GxkWX7v3_css as unknown as string, mime: "text/css; charset=utf-8" },
  "/admin/index.html": { path: A_2_index_html as unknown as string, mime: "text/html; charset=utf-8" },
 };
@@ -24,6 +24,8 @@ import { loadConfig, toEngineConfig } from '../core/config.ts';
 import { createEngine } from '../core/engine-factory.ts';
 import type { BrainEngine } from '../core/engine.ts';
 import { sqlQueryForEngine, executeRawJsonb, type SqlQuery } from '../core/sql-query.ts';
+import { pgArray } from '../core/oauth-provider.ts';
+import { assertValidSourceId } from '../core/source-id.ts';

 function hashToken(token: string): string {
  return createHash('sha256').update(token).digest('hex');
@@ -165,6 +167,100 @@ async function list() {
  });
 }

+/**
+ * `gbrain auth list-clients [--json]` — read surface for OAuth 2.1 clients.
+ *
+ * The existing `gbrain auth list` shows LEGACY bearer tokens from
+ * `access_tokens`; this is the parallel for v0.26+ OAuth clients. Separate
+ * commands rather than merged output because the two models have different
+ * field sets (legacy: lifecycle dates; OAuth: scopes + source_id +
+ * federated_read).
+ *
+ * Human output is card-style (multi-line per client) instead of a fixed-
+ * width table — federated_read can hold many ids per client and a wide
+ * single-line layout truncates / wraps badly on terminals < 200 cols.
+ * JSON output uses a `schema_version: 1` envelope; additive only.
+ */
+async function listClients(args: string[]) {
+  const json = args.includes('--json');
+  const includeDeleted = args.includes('--include-deleted');
+  await withConfiguredSql(async (sql) => {
+    // Codex finding #2 (medium): default-hide soft-deleted clients so admin
+    // soft-deletes are honored by the CLI surface. Opt-in via flag.
+    const rows = includeDeleted
+      ? await sql`
+          SELECT client_id, client_name, scope, source_id, federated_read,
+                 grant_types, created_at, deleted_at
+          FROM oauth_clients
+          ORDER BY client_name
+        `
+      : await sql`
+          SELECT client_id, client_name, scope, source_id, federated_read,
+                 grant_types, created_at, deleted_at
+          FROM oauth_clients
+          WHERE deleted_at IS NULL
+          ORDER BY client_name
+        `;
+    if (json) {
+      const clients = rows.map((r) => ({
+        client_id: String(r.client_id),
+        client_name: String(r.client_name),
+        scope: r.scope == null ? null : String(r.scope),
+        source_id: r.source_id == null ? null : String(r.source_id),
+        federated_read: Array.isArray(r.federated_read)
+          ? (r.federated_read as string[]).map(String)
+          : [],
+        grant_types: Array.isArray(r.grant_types)
+          ? (r.grant_types as string[]).map(String)
+          : [],
+        created_at:
+          r.created_at instanceof Date
+            ? r.created_at.toISOString()
+            : r.created_at == null
+              ? null
+              : String(r.created_at),
+        deleted_at:
+          r.deleted_at instanceof Date
+            ? r.deleted_at.toISOString()
+            : r.deleted_at == null
+              ? null
+              : String(r.deleted_at),
+      }));
+      process.stdout.write(JSON.stringify({ schema_version: 1, clients }, null, 2) + '\n');
+      return;
+    }
+    if (rows.length === 0) {
+      console.log(
+        includeDeleted
+          ? 'No OAuth clients found (including deleted). Register one: gbrain auth register-client <name>'
+          : 'No active OAuth clients found. Register one: gbrain auth register-client <name>'
+            + '\n(Use --include-deleted to also show soft-deleted clients.)',
+      );
+      return;
+    }
+    for (let i = 0; i < rows.length; i++) {
+      const r = rows[i];
+      const fed = Array.isArray(r.federated_read)
+        ? (r.federated_read as string[]).map(String)
+        : [];
+      const grants = Array.isArray(r.grant_types)
+        ? (r.grant_types as string[]).map(String)
+        : [];
+      const deletedAt = r.deleted_at;
+      const status = deletedAt == null
+        ? ''
+        : ` [SOFT-DELETED ${deletedAt instanceof Date ? deletedAt.toISOString() : String(deletedAt)}]`;
+      console.log(`${sanitizeForTerminal(String(r.client_name))}${status}`);
+      console.log(`  client_id:    ${sanitizeForTerminal(String(r.client_id))}`);
+      console.log(`  scope:        ${r.scope == null ? '(none)' : sanitizeForTerminal(String(r.scope))}`);
+      console.log(`  grant types:  ${grants.length ? sanitizeForTerminal(grants.join(', ')) : '(none)'}`);
+      console.log(`  write source: ${r.source_id == null ? '(none)' : sanitizeForTerminal(String(r.source_id))}`);
+      console.log(`  federated:    ${fed.length ? sanitizeForTerminal(fed.join(', ')) : '(empty)'}`);
+      if (i < rows.length - 1) console.log('');
+    }
+  });
+}
+
 async function revoke(name: string) {
  if (!name) { console.error('Usage: auth revoke <name>'); process.exit(1); }
  await withConfiguredSql(async (sql) => {
@@ -301,6 +397,475 @@ async function test(url: string, token: string) {
  console.log(`\n🧠 Your brain is live! (${elapsed}s)`);
 }

+/**
+ * Strip ANSI escapes + C0/C1 control characters from a string before
+ * printing it to the operator's terminal. Defense for the
+ * codex-flagged terminal-control-injection class: a client_name or
+ * source_id registered via DCR with `\x1b[2J` (clear-screen) or
+ * `\x1b]0;TITLE\x07` (OSC title-change) would poison
+ * `gbrain auth list-clients` output otherwise.
+ *
+ * Replaces unsafe bytes with their `\xNN` hex escape so the operator
+ * sees that something weird is in the field, instead of silent
+ * mutilation. Tab and newline are preserved as-is so legitimate
+ * multi-line values render.
+ */
+export function sanitizeForTerminal(s: string): string {
+  // ALL C0/C1 controls + DEL get escaped. Codex re-review caught that
+  // preserving `\n` lets a DCR-registered client_name spoof additional
+  // human-output lines in list-clients (a real attack — newline in the
+  // name visually adds a fake row to the operator's terminal). Tab is
+  // also escaped for the same reason — field-separator spoofing.
+  // C0: 0x00-0x1F. DEL: 0x7F. C1: 0x80-0x9F.
+  return s.replace(/[\x00-\x1f\x7f-\x9f]/g, (ch) =>
+    `\\x${ch.charCodeAt(0).toString(16).padStart(2, '0')}`,
+  );
+}
+
+export interface ResolvedClient {
+  client_id: string;
+  client_name: string;
+  source_id: string | null;
+  federated_read: string[];
+  deleted_at: Date | string | null;
+}
+
+export type FederatedReadOutcome =
+  | { kind: 'noop'; reason: 'already-granted' | 'not-present' | 'same-list'; client: ResolvedClient; current: string[] }
+  | { kind: 'updated'; client: ResolvedClient; before: string[]; after: string[] };
+
+/**
+ * Resolve an OAuth client by client_id (exact) or client_name (unique).
+ * Errors on no-match and on ambiguous client_name (>1 row). client_id
+ * takes precedence — if a long hash is passed and matches, returns
+ * immediately without ever querying by name.
+ *
+ * Legacy bearer tokens in `access_tokens` are NOT searched. Federated read
+ * scope is an OAuth-client concept (oauth_clients.federated_read column);
+ * legacy bearers have no source scope.
+ */
+/**
+ * Resolve an OAuth client. Codex finding #2 (medium): default-hide
+ * soft-deleted clients so admin-soft-deleted rows aren't mutated by the
+ * CLI. The `includeDeleted` opt is reserved for future read-side surfaces;
+ * grant/revoke/set ALWAYS filter active rows only.
+ */
+export async function resolveClient(
+  sql: SqlQuery,
+  nameOrId: string,
+  opts: { includeDeleted?: boolean } = {},
+): Promise<ResolvedClient> {
+  const allowDeleted = opts.includeDeleted === true;
+  const byId = allowDeleted
+    ? await sql`
+        SELECT client_id, client_name, source_id, federated_read, deleted_at
+        FROM oauth_clients WHERE client_id = ${nameOrId} LIMIT 1
+      `
+    : await sql`
+        SELECT client_id, client_name, source_id, federated_read, deleted_at
+        FROM oauth_clients WHERE client_id = ${nameOrId} AND deleted_at IS NULL LIMIT 1
+      `;
+  if (byId.length === 1) return normalizeClientRow(byId[0]);
+  const byName = allowDeleted
+    ? await sql`
+        SELECT client_id, client_name, source_id, federated_read, deleted_at
+        FROM oauth_clients WHERE client_name = ${nameOrId}
+      `
+    : await sql`
+        SELECT client_id, client_name, source_id, federated_read, deleted_at
+        FROM oauth_clients WHERE client_name = ${nameOrId} AND deleted_at IS NULL
+      `;
+  if (byName.length === 0) {
+    throw new Error(
+      `No active OAuth client found with name or id "${nameOrId}". ` +
+        `Run \`gbrain auth register-client <name>\` to create one, ` +
+        `or \`gbrain auth list-clients\` to see what exists. ` +
+        `(Soft-deleted clients are hidden by default.)`,
+    );
+  }
+  if (byName.length > 1) {
+    const ids = byName.map((r) => `  ${String(r.client_id)}`).join('\n');
+    throw new Error(
+      `Multiple active OAuth clients named "${nameOrId}". Pass the full client_id instead:\n${ids}`,
+    );
+  }
+  return normalizeClientRow(byName[0]);
+}
+
+function normalizeClientRow(row: Record<string, unknown>): ResolvedClient {
+  const fed = row.federated_read;
+  return {
+    client_id: String(row.client_id),
+    client_name: String(row.client_name),
+    source_id: row.source_id == null ? null : String(row.source_id),
+    federated_read: Array.isArray(fed) ? (fed as string[]).map(String) : [],
+    deleted_at: row.deleted_at == null
+      ? null
+      : (row.deleted_at as Date | string),
+  };
+}
+
+/**
+ * Validate the source_id shape AND DB existence. Codex finding #3 (medium):
+ * a manually-INSERTed source row with weird chars (e.g. comma, quote)
+ * would otherwise land in oauth_clients.federated_read as a never-deletable
+ * malformed entry. Fail at the boundary before the existence query so
+ * malformed input gets the validator's hint, not a "does not exist" hint
+ * pointing at a non-creatable id.
+ */
+export async function assertSourceExists(sql: SqlQuery, sourceId: string): Promise<void> {
+  assertValidSourceId(sourceId);
+  const rows = await sql`SELECT id FROM sources WHERE id = ${sourceId} LIMIT 1`;
+  if (rows.length === 0) {
+    throw new Error(
+      `Source "${sourceId}" does not exist. Run \`gbrain sources list\` to see registered sources, ` +
+        `or \`gbrain sources add ${sourceId}\` to create it.`,
+    );
+  }
+}
+
+/**
+ * Atomic append: array_append + NOT-ANY guard so the row-lock fully
+ * serializes concurrent grant/revoke against the same client. Codex
+ * finding #1 (HIGH): the previous read-modify-write shape allowed a
+ * concurrent revoke to be silently UNDONE by a racing grant.
+ *
+ * Returns the post-write federated_read array, or null when no rows
+ * matched (already-granted, soft-deleted, or missing client). Callers
+ * disambiguate via prior resolveClient + includes() check.
+ *
+ * `WHERE deleted_at IS NULL` is part of the atomic guard so a client
+ * soft-deleted between resolveClient and the UPDATE can't be mutated.
+ */
+async function appendFederatedReadAtomic(
+  sql: SqlQuery,
+  clientId: string,
+  sourceId: string,
+): Promise<string[] | null> {
+  const rows = await sql`
+    UPDATE oauth_clients
+    SET federated_read = array_append(federated_read, ${sourceId})
+    WHERE client_id = ${clientId}
+      AND deleted_at IS NULL
+      AND NOT (${sourceId} = ANY(federated_read))
+    RETURNING federated_read
+  `;
+  if (rows.length === 0) return null;
+  const fed = rows[0].federated_read;
+  return Array.isArray(fed) ? (fed as string[]).map(String) : [];
+}
+
+/**
+ * Atomic remove: array_remove + ANY guard. Same race-correctness story
+ * as appendFederatedReadAtomic. Returns post-write array or null.
+ */
+async function removeFederatedReadAtomic(
+  sql: SqlQuery,
+  clientId: string,
+  sourceId: string,
+): Promise<string[] | null> {
+  const rows = await sql`
+    UPDATE oauth_clients
+    SET federated_read = array_remove(federated_read, ${sourceId})
+    WHERE client_id = ${clientId}
+      AND deleted_at IS NULL
+      AND ${sourceId} = ANY(federated_read)
+    RETURNING federated_read
+  `;
+  if (rows.length === 0) return null;
+  const fed = rows[0].federated_read;
+  return Array.isArray(fed) ? (fed as string[]).map(String) : [];
+}
+
+/**
+ * Wholesale array overwrite for `set-federated-read`. Honors the
+ * deleted_at filter. Last-writer-wins semantics under concurrent
+ * `set` calls is acceptable — the user is asserting "this exact list"
+ * intent; concurrent set+set just means whichever ran second wins.
+ * Concurrent set+grant or set+revoke is also last-writer-wins, which
+ * is the documented contract for `set`.
+ */
+async function replaceFederatedReadAtomic(
+  sql: SqlQuery,
+  clientId: string,
+  next: string[],
+): Promise<string[] | null> {
+  // TEXT[] binding via pgArray() string-literal escaping (see helper
+  // for the security note). Our narrow SqlQuery surface
+  // (src/core/sql-query.ts) doesn't bind JS arrays directly.
+  const literal = pgArray(next);
+  const rows = await sql`
+    UPDATE oauth_clients
+    SET federated_read = ${literal}
+    WHERE client_id = ${clientId}
+      AND deleted_at IS NULL
+    RETURNING federated_read
+  `;
+  if (rows.length === 0) return null;
+  const fed = rows[0].federated_read;
+  return Array.isArray(fed) ? (fed as string[]).map(String) : [];
+}
+
+/**
+ * Pure helper: dedupe a comma-separated source-id list while preserving
+ * insertion order. Empty input → empty array. Exported so the CLI parser
+ * and tests share one normalizer.
+ */
+export function parseSourceCsv(csv: string): string[] {
+  const requested = csv.split(',').map((s) => s.trim()).filter(Boolean);
+  const seen = new Set<string>();
+  const out: string[] = [];
+  for (const s of requested) {
+    if (!seen.has(s)) {
+      seen.add(s);
+      out.push(s);
+    }
+  }
+  return out;
+}
+
+export interface FederatedReadOpts {
+  /** When true, compute the outcome but skip the persisting UPDATE. */
+  dryRun?: boolean;
+}
+
+/**
+ * Core: append a source to the client's federated_read.
+ *
+ * Atomicity contract (Codex finding #1, HIGH):
+ *   The actual write goes through `appendFederatedReadAtomic` which
+ *   serializes at the row-lock so concurrent grant/revoke against the
+ *   same client cannot lose updates. The race vector that previously
+ *   silently restored revoked access is closed: under two operators
+ *   racing `revoke-read sensitive` + `grant-read harmless`, postgres
+ *   serializes the two UPDATEs and BOTH ops apply (sensitive removed,
+ *   harmless added), instead of one clobbering the other.
+ *
+ * The reported `before` is the snapshot at resolveClient time, which
+ * may be stale relative to a concurrent racer. The `after` reflects
+ * the post-UPDATE state from RETURNING (always fresh).
+ */
+export async function grantReadCore(
+  sql: SqlQuery,
+  nameOrId: string,
+  sourceId: string,
+  opts: FederatedReadOpts = {},
+): Promise<FederatedReadOutcome> {
+  const client = await resolveClient(sql, nameOrId);
+  await assertSourceExists(sql, sourceId);
+  if (client.federated_read.includes(sourceId)) {
+    return { kind: 'noop', reason: 'already-granted', client, current: client.federated_read };
+  }
+  if (opts.dryRun) {
+    // Compute the would-be result without touching the row. Last-known
+    // snapshot is best-effort under concurrent writes.
+    const projected = [...client.federated_read, sourceId];
+    return { kind: 'updated', client, before: client.federated_read, after: projected };
+  }
+  const after = await appendFederatedReadAtomic(sql, client.client_id, sourceId);
+  if (after === null) {
+    // Two equivalent failure modes: (a) racing grant-read already added
+    // the source and the NOT-ANY guard suppressed our UPDATE, or
+    // (b) the client was soft-deleted between resolveClient and UPDATE.
+    // (a) is the more common path. Re-resolve to confirm + report.
+    const reresolved = await resolveClient(sql, client.client_id, { includeDeleted: true });
+    if (reresolved.deleted_at != null) {
+      throw new Error(`Client "${client.client_name}" was soft-deleted before write could land.`);
+    }
+    return { kind: 'noop', reason: 'already-granted', client: reresolved, current: reresolved.federated_read };
+  }
+  return { kind: 'updated', client, before: client.federated_read, after };
+}
+
+/**
+ * Core: remove a source from the client's federated_read. Atomic via
+ * array_remove + ANY-guard. Same race-correctness rationale as
+ * grantReadCore — concurrent ops serialize at the row lock.
+ */
+export async function revokeReadCore(
+  sql: SqlQuery,
+  nameOrId: string,
+  sourceId: string,
+  opts: FederatedReadOpts = {},
+): Promise<FederatedReadOutcome> {
+  const client = await resolveClient(sql, nameOrId);
+  if (!client.federated_read.includes(sourceId)) {
+    return { kind: 'noop', reason: 'not-present', client, current: client.federated_read };
+  }
+  if (opts.dryRun) {
+    const projected = client.federated_read.filter((s) => s !== sourceId);
+    return { kind: 'updated', client, before: client.federated_read, after: projected };
+  }
+  const after = await removeFederatedReadAtomic(sql, client.client_id, sourceId);
+  if (after === null) {
+    // Same disambiguation as grant: either a concurrent revoke already
+    // removed the source (most common) or the client was soft-deleted.
+    const reresolved = await resolveClient(sql, client.client_id, { includeDeleted: true });
+    if (reresolved.deleted_at != null) {
+      throw new Error(`Client "${client.client_name}" was soft-deleted before write could land.`);
+    }
+    return { kind: 'noop', reason: 'not-present', client: reresolved, current: reresolved.federated_read };
+  }
+  return { kind: 'updated', client, before: client.federated_read, after };
+}
+
+/**
+ * Core: replace the whole federated_read list. Idempotent on same list.
+ *
+ * Race semantics: wholesale-overwrite + deleted_at guard. Concurrent
+ * set+set is last-writer-wins (documented contract for `set` — the
+ * operator is asserting the exact list). Concurrent set+grant or
+ * set+revoke is also last-writer-wins. If a strict-merge semantics is
+ * needed, use grant-read / revoke-read individually.
+ */
+export async function setFederatedReadCore(
+  sql: SqlQuery,
+  nameOrId: string,
+  sourceCsv: string,
+  opts: FederatedReadOpts = {},
+): Promise<FederatedReadOutcome> {
+  const next = parseSourceCsv(sourceCsv);
+  const client = await resolveClient(sql, nameOrId);
+  for (const s of next) {
+    await assertSourceExists(sql, s);
+  }
+  const prev = client.federated_read;
+  const same = prev.length === next.length && prev.every((v, i) => v === next[i]);
+  if (same) {
+    return { kind: 'noop', reason: 'same-list', client, current: prev };
+  }
+  if (opts.dryRun) {
+    return { kind: 'updated', client, before: prev, after: next };
+  }
+  const after = await replaceFederatedReadAtomic(sql, client.client_id, next);
+  if (after === null) {
+    throw new Error(`Client "${client.client_name}" was soft-deleted before write could land.`);
+  }
+  return { kind: 'updated', client, before: prev, after };
+}
+
+function printOutcome(
+  verb: 'grant' | 'revoke' | 'set',
+  sourceArg: string,
+  outcome: FederatedReadOutcome,
+  dryRun: boolean,
+): void {
+  // Terminal-injection defense (Codex finding #5, low): a client_name
+  // registered via DCR with ANSI escapes or control chars would
+  // otherwise poison this output. Sanitize ALL strings that round-trip
+  // from the DB before printing.
+  const s = sanitizeForTerminal;
+  const prefix = dryRun ? '[dry-run] ' : '';
+  if (outcome.kind === 'noop') {
+    const name = s(outcome.client.client_name);
+    if (outcome.reason === 'already-granted') {
+      console.log(`${prefix}No change: "${name}" already reads "${s(sourceArg)}".`);
+    } else if (outcome.reason === 'not-present') {
+      console.log(`${prefix}No change: "${name}" did not read "${s(sourceArg)}".`);
+    } else {
+      console.log(`${prefix}No change: "${name}" federated_read already matches.`);
+    }
+    console.log(`  federated_read: ${outcome.current.map(s).join(', ') || '(empty)'}`);
+    return;
+  }
+  const { client, before, after } = outcome;
+  const name = s(client.client_name);
+  const wouldOrDid = dryRun ? 'Would' : 'Did';
+  if (verb === 'grant') {
+    console.log(`${prefix}${wouldOrDid} grant: "${name}" can now read "${s(sourceArg)}".`);
+    console.log(`  federated_read: ${after.map(s).join(', ')}`);
+  } else if (verb === 'revoke') {
+    console.log(`${prefix}${wouldOrDid} revoke: "${name}" no longer reads "${s(sourceArg)}".`);
+    console.log(`  federated_read: ${after.map(s).join(', ') || '(empty — client has no federated reads)'}`);
+  } else {
+    console.log(`${prefix}${wouldOrDid} update "${name}" federated_read:`);
+    console.log(`  before: ${before.map(s).join(', ') || '(empty)'}`);
+    console.log(`  after:  ${after.map(s).join(', ') || '(empty)'}`);
+  }
+  if (after.length === 0) {
+    console.log(
+      'Warning: client now reads no sources via federation. Queries through this ' +
+        'client will only see content scoped explicitly via its write source.',
+    );
+  }
+}
+
+/**
+ * Strip `--dry-run` from a positional-arg list. Returns the filtered list
+ * plus the flag value. Kept positional-tolerant — the existing
+ * `auth grant-read alice source` shape MUST keep working, AND
+ * `auth grant-read alice source --dry-run` AND `auth grant-read --dry-run alice source`.
+ */
+export function extractDryRun(args: string[]): { dryRun: boolean; rest: string[] } {
+  let dryRun = false;
+  const rest: string[] = [];
+  for (const a of args) {
+    if (a === '--dry-run') {
+      dryRun = true;
+      continue;
+    }
+    rest.push(a);
+  }
+  return { dryRun, rest };
+}
+
+async function grantRead(args: string[]): Promise<void> {
+  const { dryRun, rest } = extractDryRun(args);
+  const [nameOrId, sourceId] = rest;
+  if (!nameOrId || !sourceId) {
+    console.error('Usage: gbrain auth grant-read <client-name-or-id> <source-id> [--dry-run]');
+    process.exit(1);
+  }
+  try {
+    await withConfiguredSql(async (sql) => {
+      const outcome = await grantReadCore(sql, nameOrId, sourceId, { dryRun });
+      printOutcome('grant', sourceId, outcome, dryRun);
+    });
+  } catch (e: any) {
+    console.error('Error:', e.message);
+    process.exit(1);
+  }
+}
+
+async function revokeRead(args: string[]): Promise<void> {
+  const { dryRun, rest } = extractDryRun(args);
+  const [nameOrId, sourceId] = rest;
+  if (!nameOrId || !sourceId) {
+    console.error('Usage: gbrain auth revoke-read <client-name-or-id> <source-id> [--dry-run]');
+    process.exit(1);
+  }
+  try {
+    await withConfiguredSql(async (sql) => {
+      const outcome = await revokeReadCore(sql, nameOrId, sourceId, { dryRun });
+      printOutcome('revoke', sourceId, outcome, dryRun);
+    });
+  } catch (e: any) {
+    console.error('Error:', e.message);
+    process.exit(1);
+  }
+}
+
+async function setFederatedRead(args: string[]): Promise<void> {
+  const { dryRun, rest } = extractDryRun(args);
+  const [nameOrId, sourceCsv] = rest;
+  if (!nameOrId || sourceCsv === undefined) {
+    console.error(
+      'Usage: gbrain auth set-federated-read <client-name-or-id> <source-id1,source-id2,...> [--dry-run]',
+    );
+    console.error('Pass an empty string ("") to clear all federated reads.');
+    process.exit(1);
+  }
+  try {
+    await withConfiguredSql(async (sql) => {
+      const outcome = await setFederatedReadCore(sql, nameOrId, sourceCsv, { dryRun });
+      printOutcome('set', sourceCsv, outcome, dryRun);
+    });
+  } catch (e: any) {
+    console.error('Error:', e.message);
+    process.exit(1);
+  }
+}
+
 async function revokeClient(clientId: string) {
  if (!clientId) {
    console.error('Usage: auth revoke-client <client_id>');
@@ -319,7 +884,7 @@ async function revokeClient(clientId: string) {
        console.error(`No client found with id "${clientId}"`);
        process.exit(1);
      }
-      console.log(`OAuth client revoked: "${rows[0].client_name}" (${clientId})`);
+      console.log(`OAuth client revoked: "${sanitizeForTerminal(String(rows[0].client_name))}" (${clientId})`);
      console.log('Tokens and authorization codes purged via cascade.');
    });
  } catch (e: any) {
@@ -440,6 +1005,15 @@ export function parseRegisterClientArgs(args: string[]): RegisterClientArgs {
  if (!grantTypesSet && out.redirectUris.length > 0) {
    out.grantTypes = ['authorization_code', 'refresh_token'];
  }
+  // Codex re-review (medium): validate source_id shape at the CLI boundary
+  // so register-client can't seed malformed entries into source_id /
+  // federated_read that subsequent grant/revoke/set commands can't manage.
+  assertValidSourceId(out.sourceId);
+  if (out.federatedRead) {
+    for (const s of out.federatedRead) {
+      assertValidSourceId(s);
+    }
+  }
  return out;
 }

@@ -557,6 +1131,10 @@ export async function runAuth(args: string[]): Promise<void> {
    }
    case 'register-client': await registerClient(rest[0], rest.slice(1)); return;
    case 'revoke-client': await revokeClient(rest[0]); return;
+    case 'list-clients': await listClients(rest); return;
+    case 'grant-read': await grantRead(rest); return;
+    case 'revoke-read': await revokeRead(rest); return;
+    case 'set-federated-read': await setFederatedRead(rest); return;
    case 'test': {
      const tokenIdx = rest.indexOf('--token');
      const url = rest.find(a => !a.startsWith('--') && a !== rest[tokenIdx + 1]);
@@ -594,6 +1172,13 @@ Usage:
     --bound-max-concurrent <n>                            Bound submit_agent concurrency (default: 1)
     --budget-usd-per-day <usd>                            Bound submit_agent daily spend cap
  gbrain auth revoke-client <client_id>                   Hard-delete an OAuth 2.1 client (cascades to tokens + codes)
+  gbrain auth list-clients [--json]                       List OAuth 2.1 clients with scope + write source + federated_read.
+  gbrain auth grant-read <name|client_id> <source-id> [--dry-run]
+                                                          Add a source to the client's federated_read list (idempotent).
+  gbrain auth revoke-read <name|client_id> <source-id> [--dry-run]
+                                                          Remove a source from the client's federated_read list (idempotent).
+  gbrain auth set-federated-read <name|client_id> "<id1,id2,...>" [--dry-run]
+                                                          Replace the client's whole federated_read list. Pass "" to clear.
  gbrain auth test <url> --token <token>                  Smoke-test a remote MCP server
 `);
  }
@@ -365,6 +365,42 @@ export interface AgentClientSpend {
  inflight_count: number;
 }

+/**
+ * `/admin/api/sources` source list — the input rows for buildSyncStatusReport.
+ *
+ * Queries the JSONB config column directly (listSources doesn't carry it,
+ * but buildSyncStatusReport needs syncEnabled / strategy fields).
+ *
+ * Deliberately does NOT filter on local_path: in a push-only deployment
+ * (content arrives via MCP put_page / capture / ingest, not `gbrain sync`
+ * of a server checkout) every source has a null local_path — filtering on
+ * it would empty both the Sources tab AND the federation source-picker.
+ * buildSyncStatusReport does no disk I/O, so null-local_path sources
+ * report fine (pages/chunks from SQL, staleness 'unknown' / never-synced).
+ */
+export async function queryAdminSources(engine: BrainEngine): Promise<
+  Array<{ id: string; name: string; local_path: string | null; config: Record<string, unknown> }>
+> {
+  const rows = await engine.executeRaw<{
+    id: string;
+    name: string;
+    local_path: string | null;
+    config: Record<string, unknown> | string | null;
+  }>(
+    `SELECT id, name, local_path, config FROM sources
+     WHERE archived IS NOT TRUE
+     ORDER BY id`,
+  );
+  return rows.map((r) => ({
+    id: r.id,
+    name: r.name,
+    local_path: r.local_path,
+    config: typeof r.config === 'string'
+      ? (JSON.parse(r.config) as Record<string, unknown>)
+      : (r.config ?? {}),
+  }));
+}
+
 export async function queryAgentClientSpend(engine: BrainEngine): Promise<AgentClientSpend[]> {
  const sql = sqlQueryForEngine(engine);
  const rows = await sql`
@@ -1511,6 +1547,111 @@ export async function runServeHttp(engine: BrainEngine, options: ServeHttpOption
    }
  });

+  // ---------------------------------------------------------------------------
+  // Sources tab — read-only view of registered sources with sync + embed
+  // coverage stats. Drives the admin SPA's `Sources` page.
+  //
+  // Returns the same shape `gbrain sources status --json` prints, so the
+  // SPA stays in lockstep with the CLI surface.
+  // ---------------------------------------------------------------------------
+  app.get('/admin/api/sources', requireAdmin, async (_req: Request, res: Response) => {
+    try {
+      const { buildSyncStatusReport } = await import('./sync.ts');
+      const report = await buildSyncStatusReport(engine, await queryAdminSources(engine));
+      res.json(report);
+    } catch (e) {
+      const msg = e instanceof Error ? e.message : String(e);
+      res.status(503).json({ error: 'service_unavailable', detail: msg });
+    }
+  });
+
+  // ---------------------------------------------------------------------------
+  // Federated-read management (admin-side counterparts of the CLI commands
+  // `gbrain auth grant-read / revoke-read / set-federated-read`). All three
+  // route through the same *Core helpers as the CLI so race-safety,
+  // soft-delete filter, and source-id shape validation apply uniformly.
+  //
+  // The admin SPA's `Agents` page renders "Manage reads" actions per
+  // client backed by these endpoints.
+  // ---------------------------------------------------------------------------
+  app.get('/admin/api/agents/federated-read', requireAdmin, async (_req: Request, res: Response) => {
+    try {
+      const rows = await sql`
+        SELECT client_id, client_name, source_id, federated_read
+        FROM oauth_clients
+        WHERE deleted_at IS NULL
+        ORDER BY client_name
+      `;
+      const clients = rows.map((r) => ({
+        client_id: String(r.client_id),
+        client_name: String(r.client_name),
+        source_id: r.source_id == null ? null : String(r.source_id),
+        federated_read: Array.isArray(r.federated_read)
+          ? (r.federated_read as string[]).map(String)
+          : [],
+      }));
+      res.json({ clients });
+    } catch (e) {
+      const msg = e instanceof Error ? e.message : String(e);
+      res.status(503).json({ error: 'service_unavailable', detail: msg });
+    }
+  });
+
+  app.post('/admin/api/agents/:clientId/grant-read', requireAdmin, express.json(), async (req: Request, res: Response) => {
+    const clientId = String(req.params.clientId ?? '');
+    const sourceId = String(req.body?.source_id ?? '').trim();
+    if (!clientId || !sourceId) {
+      res.status(400).json({ error: 'invalid_request', detail: 'clientId path param + source_id body required' });
+      return;
+    }
+    try {
+      const { grantReadCore } = await import('./auth.ts');
+      const outcome = await grantReadCore(sql, clientId, sourceId);
+      res.json({ outcome });
+    } catch (e) {
+      const msg = e instanceof Error ? e.message : String(e);
+      res.status(400).json({ error: 'mutation_failed', detail: msg });
+    }
+  });
+
+  app.post('/admin/api/agents/:clientId/revoke-read', requireAdmin, express.json(), async (req: Request, res: Response) => {
+    const clientId = String(req.params.clientId ?? '');
+    const sourceId = String(req.body?.source_id ?? '').trim();
+    if (!clientId || !sourceId) {
+      res.status(400).json({ error: 'invalid_request', detail: 'clientId path param + source_id body required' });
+      return;
+    }
+    try {
+      const { revokeReadCore } = await import('./auth.ts');
+      const outcome = await revokeReadCore(sql, clientId, sourceId);
+      res.json({ outcome });
+    } catch (e) {
+      const msg = e instanceof Error ? e.message : String(e);
+      res.status(400).json({ error: 'mutation_failed', detail: msg });
+    }
+  });
+
+  app.post('/admin/api/agents/:clientId/set-federated-read', requireAdmin, express.json(), async (req: Request, res: Response) => {
+    const clientId = String(req.params.clientId ?? '');
+    const rawIds = req.body?.source_ids;
+    if (!clientId || !Array.isArray(rawIds)) {
+      res.status(400).json({ error: 'invalid_request', detail: 'clientId path param + source_ids[] body required' });
+      return;
+    }
+    // Encode the array as CSV so the same setFederatedReadCore signature
+    // (string CSV input) the CLI uses applies here. Empty array → empty
+    // string → clears the list.
+    const csv = rawIds.map((s) => String(s).trim()).filter(Boolean).join(',');
+    try {
+      const { setFederatedReadCore } = await import('./auth.ts');
+      const outcome = await setFederatedReadCore(sql, clientId, csv);
+      res.json({ outcome });
+    } catch (e) {
+      const msg = e instanceof Error ? e.message : String(e);
+      res.status(400).json({ error: 'mutation_failed', detail: msg });
+    }
+  });
+
  // ---------------------------------------------------------------------------
  // SSE live activity feed
  // ---------------------------------------------------------------------------
@@ -428,13 +428,8 @@ export async function runPhaseSynthesize(

    const queue = new MinionQueue(engine);
    const childIds: number[] = [];
-    /**
-     * Map child job_id → transcript metadata. Drives D6 orchestrator-side
-     * slug rewrite for chunked transcripts AND the deterministic frontmatter
-     * stampDreamProvenance merges into each written page. Populated for
-     * every child (single-chunk children carry chunkTotal=1).
-     */
-    const childMeta = new Map<number, ChildMeta>();
+    /** Map child job_id → chunk metadata for D6 orchestrator-side slug rewrite. */
+    const chunkInfo = new Map<number, { idx: number; hash6: string }>();
    /** Skip reasons for the cycle report (D5 cap hits, D8 legacy-key skips). */
    const skipReports: Array<{ filePath: string; reason: string }> = [];

@@ -518,14 +513,9 @@ export async function runPhaseSynthesize(
          { allowProtectedSubmit: true },
        );
        childIds.push(child.id);
-        childMeta.set(child.id, {
-          idx: i,
-          hash6,
-          chunkTotal: chunks.length,
-          transcriptSource: t.transcriptSource,
-          transcriptId: stripContentVersionSuffix(t.basename),
-          inferredDate: t.inferredDate,
-        });
+        if (isChunked) {
+          chunkInfo.set(child.id, { idx: i, hash6 });
+        }
      }
    }

@@ -554,14 +544,14 @@ export async function runPhaseSynthesize(

    // Collect slugs from put_page tool executions across the children
    // (codex finding #2: deterministic provenance, NOT pages.updated_at).
-    // D6 orchestrator slug rewrite: childMeta drives post-hoc rewrite of
+    // D6 orchestrator slug rewrite: chunkInfo drives post-hoc rewrite of
    // bare-hash slugs to `<hash6>-c<idx>` so chunked siblings can't collide
    // even if Sonnet drops the chunk suffix.
    // v0.32.8: refs carry source_id so reverseWriteRefs picks the correct
    // (source, slug) row. #1586: refs are stamped with the cycle's resolved
    // source (children write there via SubagentHandlerData.source_id).
    const cycleSourceId = opts.sourceId ?? 'default';
-    const writtenRefs = await collectChildPutPageSlugs(engine, childIds, childMeta, cycleSourceId);
+    const writtenRefs = await collectChildPutPageSlugs(engine, childIds, chunkInfo, cycleSourceId);

    const summaryDate = opts.date ?? today();

@@ -569,12 +559,7 @@ export async function runPhaseSynthesize(
    // of every child-written page BEFORE reverse-rendering, so generated pages
    // are queryable (`frontmatter->>'dream_generated'`) and a later put_page
    // write-through (which re-renders from the DB row) can't erase the stamp.
-    // #2285: the stamp also carries the orchestrator-owned deterministic
-    // frontmatter (transcript_id, transcript_source, transcript_hash, date,
-    // chunk) derived from childMeta — subagent drift on those fields can't
-    // leak, and reverseWriteRefs below re-reads the row so the same fields
-    // land in the on-disk markdown.
-    await stampDreamProvenance(engine, writtenRefs, summaryDate, childMeta);
+    await stampDreamProvenance(engine, writtenRefs, summaryDate);

    // Dual-write: reverse-render each DB row → markdown file.
    const reverseWriteCount = await reverseWriteRefs(engine, opts.brainDir, writtenRefs, cycleSourceId);
@@ -1110,17 +1095,15 @@ function sanitizeForSlug(s: string): string {
 * fake"): we no longer need detection because the rewrite enforces
 * uniqueness at slug-write time.
 *
- * `childMeta` maps child job_id → per-child transcript metadata. Chunked
- * children (chunkTotal > 1) get the slug rewrite; single-chunk children
- * pass through unchanged. Each returned ref carries the job_id that wrote
- * it so stampDreamProvenance can pair the slug back to its childMeta entry.
+ * `chunkInfo` maps child job_id → { chunk_index, hash6 }. Single-chunk
+ * children are absent from the map and pass through unchanged.
 */
 async function collectChildPutPageSlugs(
  engine: BrainEngine,
  childIds: number[],
-  childMeta: Map<number, ChildMeta>,
+  chunkInfo: Map<number, { idx: number; hash6: string }>,
  sourceId = 'default',
-): Promise<Array<{ slug: string; source_id: string; jobId: number }>> {
+): Promise<Array<{ slug: string; source_id: string }>> {
  if (childIds.length === 0) return [];
  // Raw fetch — NO SELECT DISTINCT. Preserves per-child slug duplicates so
  // the orchestrator sees what each child wrote. COALESCE handles both
@@ -1139,73 +1122,16 @@ async function collectChildPutPageSlugs(
       FROM subagent_tool_executions
      WHERE job_id = ANY($1::int[])
        AND tool_name = 'brain_put_page'
-        AND status = 'complete'
-      ORDER BY id`,
+        AND status = 'complete'`,
    [childIds],
  );
-  const rewritten = new Map<string, number>();
+  const rewritten = new Set<string>();
  for (const r of rows) {
    if (typeof r.slug !== 'string' || r.slug.length === 0) continue;
-    const meta = childMeta.get(r.job_id);
-    const finalSlug = meta && meta.chunkTotal > 1
-      ? rewriteChunkedSlug(r.slug, meta.hash6, meta.idx)
-      : r.slug;
-    // Last writer wins, in execution-row order (ORDER BY id): if two children
-    // collide on a final slug, the pages row holds the LAST put_page write, so
-    // the stamp must attribute that child's transcript — not an arbitrary one.
-    rewritten.set(finalSlug, r.job_id);
+    const ci = chunkInfo.get(r.job_id);
+    rewritten.add(ci ? rewriteChunkedSlug(r.slug, ci.hash6, ci.idx) : r.slug);
  }
-  return [...rewritten.entries()]
-    .sort(([a], [b]) => a.localeCompare(b))
-    .map(([slug, jobId]) => ({ slug, source_id: sourceId, jobId }));
-}
-
-/**
- * Per-child orchestrator state. Drives D6 chunked-slug rewrite (idx + hash6)
- * AND the deterministic frontmatter stampDreamProvenance merges into each
- * written page. Populated for every child, not just chunked ones.
- */
-interface ChildMeta {
-  idx: number;
-  hash6: string;
-  chunkTotal: number;
-  transcriptSource: string | null;
-  transcriptId: string;
-  inferredDate: string | null;
-}
-
-/**
- * Strip the content-version suffix that claude-code-archive appends when a
- * conversation is edited (`<uuid>--<contentHash>.md`). The session UUID is
- * the stable transcript identifier; the suffix changes with content. Used to
- * populate `transcript_id` so edits of the same session collapse to one id.
- */
-function stripContentVersionSuffix(basename: string): string {
-  return basename.replace(/--[a-f0-9]+$/i, '');
-}
-
-/**
- * Deterministic frontmatter for one synthesized page (#2285). Every field
- * here is owned by the orchestrator — the subagent's value for any of these
- * is overwritten. The subagent retains authority over type / title / tags /
- * body. `date` feeds the effective-date precedence chain
- * (src/core/effective-date.ts) so re-imports keep the conversation date even
- * when sync tools re-stamp file mtimes.
- */
-function buildDeterministicFrontmatter(
-  meta: ChildMeta,
-  cycleDate: string,
-): Record<string, unknown> {
-  const overrides: Record<string, unknown> = {
-    dream_generated: true,
-    dream_cycle_date: cycleDate,
-    transcript_id: meta.transcriptId,
-    transcript_hash: meta.hash6,
-  };
-  if (meta.transcriptSource) overrides.transcript_source = meta.transcriptSource;
-  if (meta.chunkTotal > 1) overrides.chunk = `${meta.idx + 1}/${meta.chunkTotal}`;
-  if (meta.inferredDate) overrides.date = meta.inferredDate;
-  return overrides;
+  return Array.from(rewritten).sort().map(slug => ({ slug, source_id: sourceId }));
 }

 /**
@@ -1251,19 +1177,12 @@ async function hasLegacySingleChunkCompletion(
 */
 async function stampDreamProvenance(
  engine: BrainEngine,
-  refs: Array<{ slug: string; source_id: string; jobId?: number }>,
+  refs: Array<{ slug: string; source_id: string }>,
  cycleDate: string,
-  childMeta?: Map<number, ChildMeta>,
 ): Promise<void> {
  if (refs.length === 0) return;
  const { executeRawJsonb } = await import('../sql-query.ts');
-  for (const { slug, source_id, jobId } of refs) {
-    // #2285: when the ref pairs back to a child, the stamp also carries the
-    // orchestrator-owned deterministic frontmatter for that transcript.
-    const meta = jobId !== undefined ? childMeta?.get(jobId) : undefined;
-    const stamp = meta
-      ? buildDeterministicFrontmatter(meta, cycleDate)
-      : { dream_generated: true, dream_cycle_date: cycleDate };
+  for (const { slug, source_id } of refs) {
    try {
      await executeRawJsonb(
        engine,
@@ -1271,7 +1190,7 @@ async function stampDreamProvenance(
            SET frontmatter = COALESCE(frontmatter, '{}'::jsonb) || $3::jsonb
          WHERE slug = $1 AND source_id = $2`,
        [slug, source_id],
-        [stamp],
+        [{ dream_generated: true, dream_cycle_date: cycleDate }],
      );
    } catch (e) {
      const msg = e instanceof Error ? e.message : String(e);
@@ -10,7 +10,7 @@
 */

 import { readFileSync, readdirSync, statSync } from 'node:fs';
-import { join, basename, dirname } from 'node:path';
+import { join, basename } from 'node:path';
 import { createHash } from 'node:crypto';
 import { pruneDir } from '../sync.ts';

@@ -23,22 +23,8 @@ export interface DiscoveredTranscript {
  content: string;
  /** Filename basename without extension; used as a topic-slug seed. */
  basename: string;
-  /**
-   * Inferred conversation date (YYYY-MM-DD) or null. Precedence: the
-   * `| First message | <ISO> |` row in the transcript's `## Metadata`
-   * table (stable across mtime-restamping re-syncs) wins; a leading
-   * `YYYY-MM-DD` in the basename is the fallback.
-   */
+  /** Inferred date if the basename matches `YYYY-MM-DD...` (or null). */
  inferredDate: string | null;
-  /**
-   * Transcript source archive name, derived from the path's grandparent
-   * directory (the immediate parent of the date directory). For the
-   * canonical layout `<corpus>/<source>/<date>/<id>.md` this yields the
-   * source-name segment — e.g. `claude-code` for the claude-code-archive
-   * output, `meetings` for meeting recordings. Null when the file does
-   * not live under a `<source>/<date>/` pair (ad-hoc inputs).
-   */
-  transcriptSource: string | null;
 }

 export interface DiscoverOpts {
@@ -175,36 +161,6 @@ function matchesAnyExclude(text: string, patterns: RegExp[]): boolean {
  return false;
 }

-/**
- * Content-based conversation date: the `| First message | <ISO timestamp> |`
- * row claude-code-archive writes into the transcript's `## Metadata` table.
- * Stable across rsync/Dropbox/Syncthing/B2 re-syncs that re-stamp mtime,
- * unlike anything derived from file metadata. Returns YYYY-MM-DD or null.
- */
-const FIRST_MESSAGE_RE = /^\|\s*First message\s*\|\s*(\d{4}-\d{2}-\d{2})/im;
-
-export function inferContentDate(content: string): string | null {
-  const m = FIRST_MESSAGE_RE.exec(content);
-  return m ? m[1] : null;
-}
-
-/**
- * Derive the archive source name from a transcript path. Returns the basename
- * of the directory two levels above the file when the immediate parent is a
- * date directory and the grandparent looks like a source-name slug (lowercase
- * alphanumeric segments separated by hyphens); otherwise null. This pins the
- * canonical claude-code-archive layout `<corpus>/<source>/<date>/<id>.md`
- * without claiming a source for ad-hoc inputs that don't match.
- */
-export function deriveTranscriptSource(filePath: string): string | null {
-  const parentName = basename(dirname(filePath));
-  if (!/^\d{4}-\d{2}-\d{2}/.test(parentName)) return null;
-  const grandparentName = basename(dirname(dirname(filePath)));
-  if (!grandparentName) return null;
-  if (!/^[a-z0-9]+(-[a-z0-9]+)*$/.test(grandparentName)) return null;
-  return grandparentName;
-}
-
 function listTextFiles(dir: string): string[] {
  // Recursive walk with descent-time pruning (closes codex C12/C13 spec gap).
  // Accepts BOTH .txt and .md per transcript-discovery's domain rules — does
@@ -269,11 +225,8 @@ export function discoverTranscripts(opts: DiscoverOpts): DiscoveredTranscript[]
      const ext = filePath.endsWith('.md') ? '.md' : '.txt';
      const baseName = basename(filePath, ext);
      const dateMatch = DATE_RE.exec(baseName);
-      const filenameDate = dateMatch ? dateMatch[1] : null;
-      // Fast path: date-named files outside the window skip before the read.
-      // ponytail: a date-named file whose content date differs is filtered on
-      // its filename date — acceptable; archive layouts use UUID basenames.
-      if (filenameDate && !isInDateRange(filenameDate, opts)) continue;
+      const inferredDate = dateMatch ? dateMatch[1] : null;
+      if (!isInDateRange(inferredDate, opts)) continue;

      let content: string;
      try {
@@ -288,17 +241,12 @@ export function discoverTranscripts(opts: DiscoverOpts): DiscoveredTranscript[]
      }
      if (matchesAnyExclude(content, excludeRes)) continue;

-      // Content-metadata date wins (survives mtime restamps); filename next.
-      const inferredDate = inferContentDate(content) ?? filenameDate;
-      if (!isInDateRange(inferredDate, opts)) continue;
-
      results.push({
        filePath,
        contentHash: hashContent(content),
        content,
        basename: baseName,
        inferredDate,
-        transcriptSource: deriveTranscriptSource(filePath),
      });
    }
  }
@@ -342,7 +290,6 @@ export function readSingleTranscript(
    contentHash: hashContent(content),
    content,
    basename: baseName,
-    inferredDate: inferContentDate(content) ?? (dateMatch ? dateMatch[1] : null),
-    transcriptSource: deriveTranscriptSource(filePath),
+    inferredDate: dateMatch ? dateMatch[1] : null,
  };
 }
@@ -55,7 +55,7 @@ export interface AgentClientBindings {
 * `redirect_uri` containing `,`) would be parsed by Postgres as MULTIPLE
 * array elements, smuggling values past validation. See CSO finding #5.
 */
-function pgArray(arr: string[]): string {
+export function pgArray(arr: string[]): string {
  if (!arr || arr.length === 0) return '{}';
  const escaped = arr.map(s => `"${s.replace(/\\/g, '\\\\').replace(/"/g, '\\"')}"`);
  return `{${escaped.join(',')}}`;
@@ -0,0 +1,82 @@
+import { describe, it, expect, beforeAll, afterAll, beforeEach } from 'bun:test';
+import { PGLiteEngine } from '../src/core/pglite-engine.ts';
+import { resetPgliteState } from './helpers/reset-pglite.ts';
+import { queryAdminSources } from '../src/commands/serve-http.ts';
+import { buildSyncStatusReport } from '../src/commands/sync.ts';
+
+/**
+ * v0.41.29 Sources tab — `/admin/api/sources` endpoint SQL.
+ *
+ * The endpoint is a thin Express handler over `queryAdminSources` +
+ * `buildSyncStatusReport`; the source-selection SQL is the load-bearing
+ * surface (same pattern as test/admin-agents-spend.test.ts).
+ *
+ * Pinned behaviors:
+ *   - Excludes archived sources
+ *   - INCLUDES sources with null local_path (push-only brains: filtering
+ *     on local_path emptied the Sources tab + federation source-picker)
+ *   - JSONB config surfaces as an object, defaulting to {}
+ *   - Deterministic ORDER BY id
+ *   - buildSyncStatusReport accepts the rows (no disk I/O on null paths)
+ */
+
+let engine: PGLiteEngine;
+
+beforeAll(async () => {
+  engine = new PGLiteEngine();
+  await engine.connect({});
+  await engine.initSchema();
+});
+
+afterAll(async () => {
+  await engine.disconnect();
+});
+
+beforeEach(async () => {
+  await resetPgliteState(engine);
+});
+
+describe('queryAdminSources (/admin/api/sources SQL)', () => {
+  it('includes push-only sources with null local_path', async () => {
+    await engine.executeRaw(
+      `INSERT INTO sources (id, name, local_path, config)
+       VALUES ('push-only', 'push-only', NULL, '{}'::jsonb)`,
+    );
+    const sources = await queryAdminSources(engine);
+    const ids = sources.map((s) => s.id);
+    expect(ids).toContain('push-only');
+    expect(sources.find((s) => s.id === 'push-only')!.local_path).toBe(null);
+  });
+
+  it('excludes archived sources', async () => {
+    await engine.executeRaw(
+      `INSERT INTO sources (id, name, archived) VALUES ('gone', 'gone', true)`,
+    );
+    const sources = await queryAdminSources(engine);
+    expect(sources.map((s) => s.id)).not.toContain('gone');
+  });
+
+  it('surfaces JSONB config as an object and orders by id', async () => {
+    await engine.executeRaw(
+      `INSERT INTO sources (id, name, config)
+       VALUES ('bbb', 'bbb', '{"syncEnabled": true}'::jsonb),
+              ('aaa', 'aaa', '{}'::jsonb)`,
+    );
+    const sources = await queryAdminSources(engine);
+    const ids = sources.map((s) => s.id);
+    expect(ids.indexOf('aaa')).toBeLessThan(ids.indexOf('bbb'));
+    expect(sources.find((s) => s.id === 'bbb')!.config).toEqual({ syncEnabled: true });
+    expect(sources.find((s) => s.id === 'aaa')!.config).toEqual({});
+  });
+
+  it('buildSyncStatusReport accepts the rows (null local_path does not throw)', async () => {
+    await engine.executeRaw(
+      `INSERT INTO sources (id, name, local_path, config)
+       VALUES ('push-only', 'push-only', NULL, '{}'::jsonb)`,
+    );
+    const report = await buildSyncStatusReport(engine, await queryAdminSources(engine));
+    expect(report.schema_version).toBe(1);
+    const row = report.sources.find((s) => s.source_id === 'push-only');
+    expect(row).toBeDefined();
+  });
+});
@@ -0,0 +1,568 @@
+/**
+ * Tests for `gbrain auth grant-read|revoke-read|set-federated-read`.
+ *
+ * Pure helper: parseSourceCsv (no DB).
+ * DB-coupled: resolveClient, assertSourceExists, *Core fns — exercised
+ * against a real PGLite via the canonical block.
+ */
+import { describe, expect, test, beforeAll, afterAll, beforeEach } from 'bun:test';
+import { PGLiteEngine } from '../src/core/pglite-engine.ts';
+import { resetPgliteState } from './helpers/reset-pglite.ts';
+import { sqlQueryForEngine } from '../src/core/sql-query.ts';
+import { pgArray } from '../src/core/oauth-provider.ts';
+import {
+  parseSourceCsv,
+  resolveClient,
+  assertSourceExists,
+  grantReadCore,
+  revokeReadCore,
+  setFederatedReadCore,
+  extractDryRun,
+  sanitizeForTerminal,
+} from '../src/commands/auth.ts';
+
+let engine: PGLiteEngine;
+
+beforeAll(async () => {
+  engine = new PGLiteEngine();
+  await engine.connect({});
+  await engine.initSchema();
+});
+
+afterAll(async () => {
+  await engine.disconnect();
+});
+
+beforeEach(async () => {
+  await resetPgliteState(engine);
+});
+
+// ---------------------------------------------------------------------------
+// pure helpers
+// ---------------------------------------------------------------------------
+
+describe('parseSourceCsv', () => {
+  test('splits and trims', () => {
+    expect(parseSourceCsv('a,b,c')).toEqual(['a', 'b', 'c']);
+    expect(parseSourceCsv('  a  ,  b  ')).toEqual(['a', 'b']);
+  });
+
+  test('drops empty segments', () => {
+    expect(parseSourceCsv('a,,b,')).toEqual(['a', 'b']);
+    expect(parseSourceCsv(',,')).toEqual([]);
+    expect(parseSourceCsv('')).toEqual([]);
+  });
+
+  test('dedupes while preserving first-seen order', () => {
+    expect(parseSourceCsv('a,b,a,c,b')).toEqual(['a', 'b', 'c']);
+  });
+});
+
+describe('extractDryRun', () => {
+  test('absent flag → false', () => {
+    expect(extractDryRun(['alice', 'proj-x'])).toEqual({
+      dryRun: false,
+      rest: ['alice', 'proj-x'],
+    });
+  });
+
+  test('flag at end', () => {
+    expect(extractDryRun(['alice', 'proj-x', '--dry-run'])).toEqual({
+      dryRun: true,
+      rest: ['alice', 'proj-x'],
+    });
+  });
+
+  test('flag at start', () => {
+    expect(extractDryRun(['--dry-run', 'alice', 'proj-x'])).toEqual({
+      dryRun: true,
+      rest: ['alice', 'proj-x'],
+    });
+  });
+
+  test('flag in middle', () => {
+    expect(extractDryRun(['alice', '--dry-run', 'proj-x'])).toEqual({
+      dryRun: true,
+      rest: ['alice', 'proj-x'],
+    });
+  });
+
+  test('no args', () => {
+    expect(extractDryRun([])).toEqual({ dryRun: false, rest: [] });
+  });
+});
+
+// ---------------------------------------------------------------------------
+// DB-coupled
+// ---------------------------------------------------------------------------
+
+async function seedSource(id: string): Promise<void> {
+  const sql = sqlQueryForEngine(engine);
+  await sql`INSERT INTO sources (id, name) VALUES (${id}, ${id}) ON CONFLICT (id) DO NOTHING`;
+}
+
+async function seedClient(name: string, federated: string[] = []): Promise<string> {
+  // Ensure write source FK is satisfied — every seeded client points at 'default'.
+  await seedSource('default');
+  const sql = sqlQueryForEngine(engine);
+  const clientId = `gbrain_cl_test_${name}_${Date.now()}_${Math.random().toString(16).slice(2, 8)}`;
+  const fedLit = pgArray(federated);
+  await sql`
+    INSERT INTO oauth_clients (client_id, client_name, client_secret_hash,
+                               redirect_uris, grant_types, scope,
+                               client_id_issued_at, source_id, federated_read)
+    VALUES (${clientId}, ${name}, ${'dummy-hash'},
+            ${pgArray([])}, ${pgArray(['client_credentials'])}, ${'read'},
+            ${Date.now()}, ${'default'}, ${fedLit})
+  `;
+  return clientId;
+}
+
+async function readFederated(clientId: string): Promise<string[]> {
+  const sql = sqlQueryForEngine(engine);
+  const rows = await sql`SELECT federated_read FROM oauth_clients WHERE client_id = ${clientId}`;
+  const fed = rows[0]?.federated_read;
+  return Array.isArray(fed) ? (fed as string[]).map(String) : [];
+}
+
+describe('resolveClient', () => {
+  test('matches by client_id', async () => {
+    await seedSource('default');
+    const id = await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    const c = await resolveClient(sql, id);
+    expect(c.client_name).toBe('alice');
+    expect(c.federated_read).toEqual(['default']);
+  });
+
+  test('matches by client_name', async () => {
+    await seedSource('default');
+    await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    const c = await resolveClient(sql, 'alice');
+    expect(c.client_name).toBe('alice');
+  });
+
+  test('errors loudly on no-match', async () => {
+    const sql = sqlQueryForEngine(engine);
+    await expect(resolveClient(sql, 'nobody')).rejects.toThrow(/No active OAuth client found/);
+  });
+
+  test('errors loudly on ambiguous client_name', async () => {
+    await seedSource('default');
+    await seedClient('bob', ['default']);
+    await seedClient('bob', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    await expect(resolveClient(sql, 'bob')).rejects.toThrow(/Multiple active OAuth clients named/);
+  });
+
+  test('null source_id is preserved as null (legacy row tolerance)', async () => {
+    const sql = sqlQueryForEngine(engine);
+    const clientId = `gbrain_cl_test_null_${Date.now()}`;
+    await sql`
+      INSERT INTO oauth_clients (client_id, client_name, client_secret_hash,
+                                 redirect_uris, grant_types, scope,
+                                 client_id_issued_at, source_id, federated_read)
+      VALUES (${clientId}, ${'legacy'}, ${'dummy'},
+              ${pgArray([])}, ${pgArray(['client_credentials'])}, ${'read'},
+              ${Date.now()}, ${null}, ${pgArray([])})
+    `;
+    const c = await resolveClient(sql, clientId);
+    expect(c.source_id).toBeNull();
+    expect(c.federated_read).toEqual([]);
+  });
+});
+
+describe('assertSourceExists', () => {
+  test('passes when present', async () => {
+    await seedSource('proj-x');
+    const sql = sqlQueryForEngine(engine);
+    await expect(assertSourceExists(sql, 'proj-x')).resolves.toBeUndefined();
+  });
+
+  test('throws with paste-ready hint when missing', async () => {
+    const sql = sqlQueryForEngine(engine);
+    await expect(assertSourceExists(sql, 'ghost')).rejects.toThrow(
+      /Source "ghost" does not exist.*gbrain sources add ghost/s,
+    );
+  });
+});
+
+describe('grantReadCore', () => {
+  test('appends when not present and persists', async () => {
+    await seedSource('default');
+    await seedSource('proj-x');
+    const id = await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    const outcome = await grantReadCore(sql, 'alice', 'proj-x');
+    expect(outcome.kind).toBe('updated');
+    if (outcome.kind === 'updated') {
+      expect(outcome.before).toEqual(['default']);
+      expect(outcome.after).toEqual(['default', 'proj-x']);
+    }
+    expect(await readFederated(id)).toEqual(['default', 'proj-x']);
+  });
+
+  test('is idempotent — second call is a noop, list unchanged', async () => {
+    await seedSource('default');
+    await seedSource('proj-x');
+    const id = await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    await grantReadCore(sql, 'alice', 'proj-x');
+    const outcome = await grantReadCore(sql, 'alice', 'proj-x');
+    expect(outcome.kind).toBe('noop');
+    if (outcome.kind === 'noop') {
+      expect(outcome.reason).toBe('already-granted');
+    }
+    expect(await readFederated(id)).toEqual(['default', 'proj-x']);
+  });
+
+  test('refuses unknown source (fails BEFORE mutating)', async () => {
+    await seedSource('default');
+    const id = await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    await expect(grantReadCore(sql, 'alice', 'ghost')).rejects.toThrow(/does not exist/);
+    expect(await readFederated(id)).toEqual(['default']);
+  });
+
+  test('refuses unknown client', async () => {
+    const sql = sqlQueryForEngine(engine);
+    await expect(grantReadCore(sql, 'nobody', 'whatever')).rejects.toThrow(/No active OAuth client found/);
+  });
+
+  test('accepts client_id resolution too', async () => {
+    await seedSource('default');
+    await seedSource('proj-x');
+    const id = await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    await grantReadCore(sql, id, 'proj-x');
+    expect(await readFederated(id)).toEqual(['default', 'proj-x']);
+  });
+
+  test('rejects malformed source_id BEFORE existence check (Codex finding #3)', async () => {
+    await seedSource('default');
+    const id = await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    // Even with a row in `sources` having a weird id, the validator at the
+    // boundary refuses. Closes the "manual SQL plants a row, CLI lets it
+    // become unmanageable in federated_read" vector.
+    await sql`INSERT INTO sources (id, name) VALUES (${'has,"weird"-bits'}, ${'weird'})`;
+    await expect(grantReadCore(sql, 'alice', 'has,"weird"-bits')).rejects.toThrow(/Invalid source_id/);
+    // DB unchanged.
+    expect(await readFederated(id)).toEqual(['default']);
+  });
+});
+
+describe('revokeReadCore', () => {
+  test('removes when present', async () => {
+    await seedSource('default');
+    await seedSource('proj-x');
+    const id = await seedClient('alice', ['default', 'proj-x']);
+    const sql = sqlQueryForEngine(engine);
+    const outcome = await revokeReadCore(sql, 'alice', 'proj-x');
+    expect(outcome.kind).toBe('updated');
+    expect(await readFederated(id)).toEqual(['default']);
+  });
+
+  test('is idempotent — second call is a noop, list unchanged', async () => {
+    await seedSource('default');
+    const id = await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    const outcome = await revokeReadCore(sql, 'alice', 'ghost-source');
+    expect(outcome.kind).toBe('noop');
+    if (outcome.kind === 'noop') {
+      expect(outcome.reason).toBe('not-present');
+    }
+    expect(await readFederated(id)).toEqual(['default']);
+  });
+
+  test('allows clearing the list down to empty (no implicit guard)', async () => {
+    await seedSource('default');
+    const id = await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    await revokeReadCore(sql, 'alice', 'default');
+    expect(await readFederated(id)).toEqual([]);
+  });
+
+  test('does NOT validate the source exists — operator may revoke stale references', async () => {
+    await seedSource('default');
+    // federated_read carries 'proj-x' but the source row was deleted.
+    const id = await seedClient('alice', ['default', 'proj-x']);
+    const sql = sqlQueryForEngine(engine);
+    const outcome = await revokeReadCore(sql, 'alice', 'proj-x');
+    expect(outcome.kind).toBe('updated');
+    expect(await readFederated(id)).toEqual(['default']);
+  });
+});
+
+describe('setFederatedReadCore', () => {
+  test('replaces list wholesale', async () => {
+    await seedSource('a');
+    await seedSource('b');
+    await seedSource('c');
+    const id = await seedClient('alice', ['a']);
+    const sql = sqlQueryForEngine(engine);
+    const outcome = await setFederatedReadCore(sql, 'alice', 'b,c');
+    expect(outcome.kind).toBe('updated');
+    expect(await readFederated(id)).toEqual(['b', 'c']);
+  });
+
+  test('dedupes CSV input', async () => {
+    await seedSource('a');
+    await seedSource('b');
+    const id = await seedClient('alice', []);
+    const sql = sqlQueryForEngine(engine);
+    await setFederatedReadCore(sql, 'alice', 'a,b,a,b,a');
+    expect(await readFederated(id)).toEqual(['a', 'b']);
+  });
+
+  test('empty string clears the list', async () => {
+    await seedSource('a');
+    const id = await seedClient('alice', ['a']);
+    const sql = sqlQueryForEngine(engine);
+    await setFederatedReadCore(sql, 'alice', '');
+    expect(await readFederated(id)).toEqual([]);
+  });
+
+  test('noop when result equals current list', async () => {
+    await seedSource('a');
+    await seedSource('b');
+    const id = await seedClient('alice', ['a', 'b']);
+    const sql = sqlQueryForEngine(engine);
+    const outcome = await setFederatedReadCore(sql, 'alice', 'a,b');
+    expect(outcome.kind).toBe('noop');
+    if (outcome.kind === 'noop') {
+      expect(outcome.reason).toBe('same-list');
+    }
+    expect(await readFederated(id)).toEqual(['a', 'b']);
+  });
+
+  test('refuses unknown source (fails BEFORE mutating)', async () => {
+    await seedSource('a');
+    const id = await seedClient('alice', ['a']);
+    const sql = sqlQueryForEngine(engine);
+    await expect(setFederatedReadCore(sql, 'alice', 'a,ghost')).rejects.toThrow(/does not exist/);
+    // Original list preserved.
+    expect(await readFederated(id)).toEqual(['a']);
+  });
+
+  test('order in CSV is the order persisted', async () => {
+    await seedSource('a');
+    await seedSource('b');
+    await seedSource('c');
+    const id = await seedClient('alice', ['a']);
+    const sql = sqlQueryForEngine(engine);
+    await setFederatedReadCore(sql, 'alice', 'c,a,b');
+    expect(await readFederated(id)).toEqual(['c', 'a', 'b']);
+  });
+});
+
+// ---------------------------------------------------------------------------
+// --dry-run semantics
+// ---------------------------------------------------------------------------
+
+// ---------------------------------------------------------------------------
+// Codex fixes: soft-delete filter, atomic-SQL race-safety, sanitizer
+// ---------------------------------------------------------------------------
+
+describe('sanitizeForTerminal', () => {
+  test('preserves printable ASCII unchanged', () => {
+    expect(sanitizeForTerminal('alice')).toBe('alice');
+    expect(sanitizeForTerminal('a b-c_d.e/f@g')).toBe('a b-c_d.e/f@g');
+  });
+
+  test('escapes ANSI escape sequences', () => {
+    expect(sanitizeForTerminal('\x1b[2J')).toBe('\\x1b[2J');
+    expect(sanitizeForTerminal('\x1b]0;TITLE\x07')).toBe('\\x1b]0;TITLE\\x07');
+  });
+
+  test('escapes ALL C0 controls including tab and newline', () => {
+    // Codex re-review: preserving \n lets a DCR-registered name spoof
+    // additional rows in list-clients output. Tab spoofs field separators.
+    // Both are now escaped.
+    expect(sanitizeForTerminal('\x00\x07\x08')).toBe('\\x00\\x07\\x08');
+    expect(sanitizeForTerminal('line1\nline2')).toBe('line1\\x0aline2');
+    expect(sanitizeForTerminal('col1\tcol2')).toBe('col1\\x09col2');
+  });
+
+  test('escapes DEL and C1 controls', () => {
+    expect(sanitizeForTerminal('\x7f')).toBe('\\x7f');
+    expect(sanitizeForTerminal('\x9b[31m')).toBe('\\x9b[31m');
+  });
+
+  test('passes through unicode', () => {
+    expect(sanitizeForTerminal('café')).toBe('café');
+    expect(sanitizeForTerminal('日本語')).toBe('日本語');
+  });
+});
+
+describe('soft-delete filter (Codex finding #2)', () => {
+  async function softDeleteClient(clientId: string): Promise<void> {
+    const sql = sqlQueryForEngine(engine);
+    await sql`UPDATE oauth_clients SET deleted_at = now() WHERE client_id = ${clientId}`;
+  }
+
+  test('resolveClient hides soft-deleted clients by default', async () => {
+    await seedSource('default');
+    const id = await seedClient('alice', ['default']);
+    await softDeleteClient(id);
+    const sql = sqlQueryForEngine(engine);
+    await expect(resolveClient(sql, 'alice')).rejects.toThrow(/No active OAuth client found/);
+    await expect(resolveClient(sql, id)).rejects.toThrow(/No active OAuth client found/);
+  });
+
+  test('resolveClient with includeDeleted finds soft-deleted clients', async () => {
+    await seedSource('default');
+    const id = await seedClient('alice', ['default']);
+    await softDeleteClient(id);
+    const sql = sqlQueryForEngine(engine);
+    const c = await resolveClient(sql, id, { includeDeleted: true });
+    expect(c.client_name).toBe('alice');
+    expect(c.deleted_at).not.toBeNull();
+  });
+
+  test('grantReadCore refuses to mutate soft-deleted clients', async () => {
+    await seedSource('default');
+    await seedSource('proj-x');
+    const id = await seedClient('alice', ['default']);
+    await softDeleteClient(id);
+    const sql = sqlQueryForEngine(engine);
+    await expect(grantReadCore(sql, 'alice', 'proj-x')).rejects.toThrow(/No active OAuth client found/);
+    expect(await readFederated(id)).toEqual(['default']);
+  });
+
+  test('revokeReadCore refuses to mutate soft-deleted clients', async () => {
+    await seedSource('default');
+    const id = await seedClient('alice', ['default']);
+    await softDeleteClient(id);
+    const sql = sqlQueryForEngine(engine);
+    await expect(revokeReadCore(sql, 'alice', 'default')).rejects.toThrow(/No active OAuth client found/);
+    expect(await readFederated(id)).toEqual(['default']);
+  });
+
+  test('two clients with same name but only one active resolves to the active one', async () => {
+    await seedSource('default');
+    // Seed two clients with the same name; soft-delete the older one.
+    const sql = sqlQueryForEngine(engine);
+    const oldId = await seedClient('alice', ['default']);
+    await softDeleteClient(oldId);
+    const newId = await seedClient('alice', ['default']);  // same name, new row
+    const c = await resolveClient(sql, 'alice');
+    expect(c.client_id).toBe(newId);  // active row wins; ambiguity error suppressed
+  });
+});
+
+describe('atomic SQL race-safety (Codex finding #1, HIGH)', () => {
+  test('grant+revoke serialize at row-lock — sensitive stays revoked', async () => {
+    await seedSource('default');
+    await seedSource('sensitive');
+    await seedSource('harmless');
+    const id = await seedClient('alice', ['default', 'sensitive']);
+    const sql = sqlQueryForEngine(engine);
+
+    // Simulate concurrent revoke(sensitive) + grant(harmless). Real concurrency
+    // would race at the JS event loop boundary; here we await sequentially but
+    // each call goes through the ATOMIC SQL path. The contract: regardless of
+    // ordering, the final state has sensitive REMOVED and harmless ADDED.
+    await revokeReadCore(sql, 'alice', 'sensitive');
+    await grantReadCore(sql, 'alice', 'harmless');
+    const final1 = await readFederated(id);
+    expect(final1.sort()).toEqual(['default', 'harmless']);
+
+    // Reverse order, same final state. The pre-fix read-modify-write shape
+    // would have produced ['default', 'sensitive', 'harmless'] here (the
+    // resurrection bug Codex caught).
+    const id2 = await seedClient('bob', ['default', 'sensitive']);
+    await grantReadCore(sql, 'bob', 'harmless');
+    await revokeReadCore(sql, 'bob', 'sensitive');
+    const final2 = await readFederated(id2);
+    expect(final2.sort()).toEqual(['default', 'harmless']);
+  });
+
+  test('grant uses RETURNING to surface the post-write state', async () => {
+    await seedSource('default');
+    await seedSource('proj-x');
+    await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    const outcome = await grantReadCore(sql, 'alice', 'proj-x');
+    expect(outcome.kind).toBe('updated');
+    if (outcome.kind === 'updated') {
+      // The `after` came from RETURNING, not from computing prev+sourceId
+      // in JS — proves the atomic path returned authoritative state.
+      expect(outcome.after).toEqual(['default', 'proj-x']);
+    }
+  });
+
+  test('grant noop path still survives without writing', async () => {
+    await seedSource('default');
+    const id = await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    const outcome = await grantReadCore(sql, 'alice', 'default');
+    expect(outcome.kind).toBe('noop');
+    if (outcome.kind === 'noop') expect(outcome.reason).toBe('already-granted');
+    expect(await readFederated(id)).toEqual(['default']);
+  });
+});
+
+describe('dryRun mode', () => {
+  test('grantReadCore returns "updated" outcome but skips the write', async () => {
+    await seedSource('default');
+    await seedSource('proj-x');
+    const id = await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    const outcome = await grantReadCore(sql, 'alice', 'proj-x', { dryRun: true });
+    expect(outcome.kind).toBe('updated');
+    if (outcome.kind === 'updated') {
+      expect(outcome.before).toEqual(['default']);
+      expect(outcome.after).toEqual(['default', 'proj-x']);
+    }
+    // Crucially: the DB row is UNCHANGED.
+    expect(await readFederated(id)).toEqual(['default']);
+  });
+
+  test('revokeReadCore returns "updated" outcome but skips the write', async () => {
+    await seedSource('default');
+    await seedSource('proj-x');
+    const id = await seedClient('alice', ['default', 'proj-x']);
+    const sql = sqlQueryForEngine(engine);
+    const outcome = await revokeReadCore(sql, 'alice', 'proj-x', { dryRun: true });
+    expect(outcome.kind).toBe('updated');
+    expect(await readFederated(id)).toEqual(['default', 'proj-x']);
+  });
+
+  test('setFederatedReadCore returns "updated" outcome but skips the write', async () => {
+    await seedSource('a');
+    await seedSource('b');
+    await seedSource('c');
+    const id = await seedClient('alice', ['a']);
+    const sql = sqlQueryForEngine(engine);
+    const outcome = await setFederatedReadCore(sql, 'alice', 'b,c', { dryRun: true });
+    expect(outcome.kind).toBe('updated');
+    expect(await readFederated(id)).toEqual(['a']);
+  });
+
+  test('noop outcomes are surfaced identically with or without dryRun', async () => {
+    await seedSource('default');
+    await seedSource('proj-x');
+    await seedClient('alice', ['default', 'proj-x']);
+    const sql = sqlQueryForEngine(engine);
+    const live = await grantReadCore(sql, 'alice', 'proj-x', { dryRun: false });
+    const dry = await grantReadCore(sql, 'alice', 'proj-x', { dryRun: true });
+    expect(live.kind).toBe('noop');
+    expect(dry.kind).toBe('noop');
+  });
+
+  test('errors still fire in dryRun (operator sees the problem before commit)', async () => {
+    await seedSource('default');
+    const id = await seedClient('alice', ['default']);
+    const sql = sqlQueryForEngine(engine);
+    await expect(
+      grantReadCore(sql, 'alice', 'ghost', { dryRun: true }),
+    ).rejects.toThrow(/does not exist/);
+    await expect(
+      grantReadCore(sql, 'nobody', 'default', { dryRun: true }),
+    ).rejects.toThrow(/No active OAuth client found/);
+    // DB unchanged.
+    expect(await readFederated(id)).toEqual(['default']);
+  });
+});
@@ -174,6 +174,29 @@ describe('parseRegisterClientArgs', () => {
  });

  describe('error cases', () => {
+    test('--source with malformed id throws (validates source_id shape — codex re-review)', () => {
+      // Defense for the "register-client seeds an unmanageable
+      // federated_read entry" vector. assertValidSourceId fires before the
+      // function returns so DB never sees a row with bad source scope.
+      expect(() => parseRegisterClientArgs(['--source', 'has,weird,bits'])).toThrow(/Invalid source_id/);
+      expect(() => parseRegisterClientArgs(['--source', 'UPPER'])).toThrow(/Invalid source_id/);
+      expect(() => parseRegisterClientArgs(['--source', ''])).toThrow(/Invalid source_id|requires a value/);
+    });
+
+    test('--federated-read with any malformed id throws', () => {
+      // Single-item bad.
+      expect(() => parseRegisterClientArgs(['--federated-read', 'bad,source!'])).toThrow(/Invalid source_id/);
+      // Mixed valid + invalid — fails on the first bad one.
+      expect(() => parseRegisterClientArgs(['--federated-read', 'good,bad source'])).toThrow(/Invalid source_id/);
+    });
+
+    test('--source default + --federated-read default,team passes (regression — common case)', () => {
+      // Sanity: the canonical real-world invocation still parses cleanly.
+      const out = parseRegisterClientArgs(['--source', 'default', '--federated-read', 'default,team']);
+      expect(out.sourceId).toBe('default');
+      expect(out.federatedRead).toEqual(['default', 'team']);
+    });
+
    test('--redirect-uri without value → throws', () => {
      expect(() => parseRegisterClientArgs(['--redirect-uri'])).toThrow(/requires a value/);
    });
@@ -26,7 +26,6 @@ const transcript: DiscoveredTranscript = {
  content: 'User: hello world',
  contentHash: 'abcdef0123456789',
  inferredDate: '2026-07-17',
-  transcriptSource: null,
 } as DiscoveredTranscript;

 describe('#2415: buildSynthesisPrompt output root', () => {
@@ -152,94 +152,3 @@ describe('#2569: stampDreamProvenance persists the marker into DB frontmatter',
    await stampDreamProvenance(engine as any, refs, '2026-07-17'); // idempotent
  });
 });
-
-describe('#2285: orchestrator-owned deterministic transcript frontmatter', () => {
-  const meta = {
-    idx: 1,
-    hash6: 'abc123',
-    chunkTotal: 3,
-    transcriptSource: 'claude-code',
-    transcriptId: 'session-uuid',
-    inferredDate: '2026-05-15',
-  };
-
-  test('collectChildPutPageSlugs pairs each ref back to the writing job', async () => {
-    const refs = await collectChildPutPageSlugs(
-      engine as any, [1001], new Map([[1001, { ...meta, chunkTotal: 1 }]]), 'mybrain',
-    );
-    expect(refs.length).toBeGreaterThan(0);
-    for (const r of refs) {
-      expect(r.jobId).toBe(1001);
-      expect(r.source_id).toBe('mybrain'); // #1586: cycle source, never hardcoded 'default'
-    }
-  });
-
-  test('slug collision across children attributes the LAST writer (matches surviving putPage)', async () => {
-    const db = (engine as any).db;
-    // Jobs 1001 then 1002 write the same slug; the pages row would hold
-    // 1002's content (last put_page wins), so the ref must carry jobId 1002.
-    await db.query(
-      `INSERT INTO subagent_tool_executions (job_id, message_idx, tool_use_id, tool_name, status, input)
-       VALUES (1001, 9, 'tool_dup_a', 'brain_put_page', 'complete', $1::jsonb)`,
-      [JSON.stringify({ slug: 'wiki/agents/test/collision', body: 'first' })],
-    );
-    await db.query(
-      `INSERT INTO subagent_tool_executions (job_id, message_idx, tool_use_id, tool_name, status, input)
-       VALUES (1002, 9, 'tool_dup_b', 'brain_put_page', 'complete', $1::jsonb)`,
-      [JSON.stringify({ slug: 'wiki/agents/test/collision', body: 'second' })],
-    );
-    const refs = await collectChildPutPageSlugs(engine as any, [1001, 1002], new Map());
-    const hit = refs.find((r: { slug: string }) => r.slug === 'wiki/agents/test/collision');
-    expect(hit?.jobId).toBe(1002);
-  });
-
-  test('stampDreamProvenance merges the transcript metadata into DB frontmatter', async () => {
-    const slug = 'wiki/originals/ideas/2026-07-17-transcript-meta-abc123';
-    await engine.putPage(slug, {
-      type: 'note',
-      title: 'Meta stamp',
-      compiled_truth: 'body',
-      timeline: '',
-      frontmatter: { keep_me: 'yes', transcript_id: 'subagent-drift' },
-    });
-    await stampDreamProvenance(
-      engine as any,
-      [{ slug, source_id: 'default', jobId: 42 }],
-      '2026-07-17',
-      new Map([[42, meta]]),
-    );
-    const rows = await engine.executeRaw<{ fm: Record<string, unknown> }>(
-      `SELECT frontmatter AS fm FROM pages WHERE slug = $1`, [slug],
-    );
-    const fm = rows[0].fm as Record<string, unknown>;
-    expect(fm.dream_generated).toBe(true);
-    expect(fm.dream_cycle_date).toBe('2026-07-17');
-    expect(fm.transcript_id).toBe('session-uuid'); // orchestrator wins over subagent drift
-    expect(fm.transcript_hash).toBe('abc123');
-    expect(fm.transcript_source).toBe('claude-code');
-    expect(fm.chunk).toBe('2/3');
-    expect(fm.date).toBe('2026-05-15');
-    expect(fm.keep_me).toBe('yes'); // subagent-owned keys survive
-  });
-
-  test('single-chunk children with no inferredDate stamp only the applicable fields', async () => {
-    const slug = 'wiki/originals/ideas/2026-07-17-minimal-meta-abc123';
-    await engine.putPage(slug, {
-      type: 'note', title: 'Minimal', compiled_truth: 'b', timeline: '', frontmatter: {},
-    });
-    await stampDreamProvenance(
-      engine as any,
-      [{ slug, source_id: 'default', jobId: 43 }],
-      '2026-07-17',
-      new Map([[43, { ...meta, chunkTotal: 1, transcriptSource: null, inferredDate: null }]]),
-    );
-    const rows = await engine.executeRaw<{ fm: Record<string, unknown> }>(
-      `SELECT frontmatter AS fm FROM pages WHERE slug = $1`, [slug],
-    );
-    const fm = rows[0].fm as Record<string, unknown>;
-    expect(fm.transcript_id).toBe('session-uuid');
-    expect(fm.chunk).toBeUndefined();
-    expect(fm.transcript_source).toBeUndefined();
-    expect(fm.date).toBeUndefined();
-  });
-});
@@ -302,7 +302,6 @@ describe('judgeSignificance', () => {
      content: 'A short conversation about something interesting.',
      basename: 'x',
      inferredDate: null,
-      transcriptSource: null,
    };
  }

@@ -416,7 +415,6 @@ describe('judgeSignificance — UTF-16 safety (v0.41.13)', () => {
      content,
      basename: 'long',
      inferredDate: null,
-      transcriptSource: null,
    };
  }

@@ -45,7 +45,6 @@ const FIXTURE_TRANSCRIPT: DiscoveredTranscript = {
  content: 'Synthetic transcript content for gateway-adapter parity tests.',
  contentHash: 'sha-fixture-1',
  inferredDate: '2026-05-24',
-  transcriptSource: null,
 };

 describe('makeJudgeClient — construction-time provider probe', () => {
@@ -1,109 +0,0 @@
-/**
- * #2285 — transcript metadata discovery.
- *
- * Pins the two discovery-side additions:
- *   1. `transcriptSource` — derived from the `<source>/<date>/<file>` path
- *      layout; null for ad-hoc inputs that don't match.
- *   2. Content-based date inference — the `| First message | <ISO> |` row in
- *      the transcript's `## Metadata` table wins over the filename-regex
- *      date (stable across mtime-restamping re-syncs); filename is the
- *      fallback.
- *
- * Pure filesystem; no engine, no LLM.
- */
-
-import { describe, test, expect, beforeEach, afterEach } from 'bun:test';
-import { mkdtempSync, rmSync, writeFileSync, mkdirSync } from 'node:fs';
-import { tmpdir } from 'node:os';
-import { join, dirname } from 'node:path';
-import {
-  discoverTranscripts,
-  readSingleTranscript,
-  deriveTranscriptSource,
-  inferContentDate,
-} from '../../src/core/cycle/transcript-discovery.ts';
-
-let tmpDir: string;
-
-beforeEach(() => {
-  tmpDir = mkdtempSync(join(tmpdir(), 'gbrain-transcript-meta-'));
-});
-
-afterEach(() => {
-  rmSync(tmpDir, { recursive: true, force: true });
-});
-
-function write(relPath: string, body: string): string {
-  const full = join(tmpDir, relPath);
-  mkdirSync(dirname(full), { recursive: true });
-  writeFileSync(full, body);
-  return full;
-}
-
-const FILLER = 'User: hello world. '.repeat(200);
-const METADATA_BLOCK =
-  '## Metadata\n\n| Key | Value |\n| --- | --- |\n| First message | 2026-05-15T03:51:11.584Z |\n\n';
-
-describe('deriveTranscriptSource', () => {
-  test('extracts the source slug from <source>/<date>/<file> layout', () => {
-    expect(deriveTranscriptSource('/corpus/claude-code/2026-06-12/abc.md')).toBe('claude-code');
-    expect(deriveTranscriptSource('/corpus/voice-notes/2026-06-12/xyz.md')).toBe('voice-notes');
-  });
-
-  test('null when the parent dir is not a date dir or grandparent is not a slug', () => {
-    expect(deriveTranscriptSource('/corpus/flat-file.md')).toBeNull();
-    expect(deriveTranscriptSource('/corpus/claude-code/not-a-date/abc.md')).toBeNull();
-    expect(deriveTranscriptSource('/corpus/Not A Slug/2026-06-12/abc.md')).toBeNull();
-  });
-});
-
-describe('inferContentDate', () => {
-  test('parses the | First message | row', () => {
-    expect(inferContentDate(METADATA_BLOCK)).toBe('2026-05-15');
-  });
-  test('null when absent', () => {
-    expect(inferContentDate(FILLER)).toBeNull();
-  });
-});
-
-describe('discoverTranscripts — transcriptSource + date cascade', () => {
-  test('populates transcriptSource per file; null for flat files', () => {
-    write('claude-code/2026-06-12/aaaa.md', FILLER);
-    write('2026-06-12-flat.md', FILLER);
-    const out = discoverTranscripts({ corpusDir: tmpDir, minChars: 100 });
-    const byBase = new Map(out.map(t => [t.basename, t.transcriptSource]));
-    expect(byBase.get('aaaa')).toBe('claude-code');
-    expect(byBase.get('2026-06-12-flat')).toBeNull();
-  });
-
-  test('content First-message date wins over the filename date', () => {
-    write('2026-01-01-named.md', METADATA_BLOCK + FILLER);
-    const out = discoverTranscripts({ corpusDir: tmpDir, minChars: 100 });
-    expect(out).toHaveLength(1);
-    expect(out[0].inferredDate).toBe('2026-05-15');
-  });
-
-  test('filename date remains the fallback when content has no metadata row', () => {
-    write('2026-01-01-named.md', FILLER);
-    const out = discoverTranscripts({ corpusDir: tmpDir, minChars: 100 });
-    expect(out[0].inferredDate).toBe('2026-01-01');
-  });
-
-  test('date filter matches on the content date for UUID-named transcripts', () => {
-    write('claude-code/2026-05-15/uuid-basename.md', METADATA_BLOCK + FILLER);
-    const hit = discoverTranscripts({ corpusDir: tmpDir, minChars: 100, date: '2026-05-15' });
-    expect(hit).toHaveLength(1);
-    const miss = discoverTranscripts({ corpusDir: tmpDir, minChars: 100, date: '2026-05-16' });
-    expect(miss).toHaveLength(0);
-  });
-});
-
-describe('readSingleTranscript — same metadata surface', () => {
-  test('carries transcriptSource and prefers the content date', () => {
-    const p = write('claude-code/2026-05-15/2026-01-01-single.md', METADATA_BLOCK + FILLER);
-    const t = readSingleTranscript(p, { minChars: 100 });
-    expect(t).not.toBeNull();
-    expect(t!.transcriptSource).toBe('claude-code');
-    expect(t!.inferredDate).toBe('2026-05-15');
-  });
-});
@@ -216,21 +216,17 @@ describe('progress reporter', () => {
  });

  test('only one process-level signal handler installed across many reporters', () => {
-    // Baseline: one handler already installed by prior tests in this file, and
-    // possibly live reporters from OTHER test files sharing this bun process
-    // (shard composition is not this test's invariant — assert the delta, not
-    // an absolute zero, or shard reshuffles make this fail spuriously).
+    // Baseline: one handler already installed by prior tests in this file.
    const installedBefore = __signalHandlerInstalledForTest();
-    const liveBefore = __liveReporterCountForTest();
    const { stream } = sink(false);
    for (let i = 0; i < 50; i++) {
      const p = createProgress({ mode: 'json', stream, minIntervalMs: 0, minItems: 1 });
      p.start(`phase_${i}`, 1);
      p.finish();
    }
-    // After 50 reporter lifecycles, still exactly one handler and zero NET leaked live entries.
+    // After 50 reporter lifecycles, still exactly one handler and zero leaked live entries.
    expect(__signalHandlerInstalledForTest()).toBe(installedBefore || true);
-    expect(__liveReporterCountForTest()).toBe(liveBefore);
+    expect(__liveReporterCountForTest()).toBe(0);
  });

  test('startHeartbeat() fires heartbeats and stop() clears', async () => {