diff --git a/.github/workflows/lobu-apply-atlas.yml b/.github/workflows/lobu-apply-atlas.yml
index f59db2dff..d2c1ed398 100644
--- a/.github/workflows/lobu-apply-atlas.yml
+++ b/.github/workflows/lobu-apply-atlas.yml
@@ -35,14 +35,18 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Skip if no token
+      - name: Skip if secrets not configured
         id: gate
         env:
           TOKEN: ${{ secrets.LOBU_TOKEN }}
+          ANTHROPIC: ${{ secrets.ANTHROPIC_API_KEY }}
         run: |
           if [ -z "${TOKEN:-}" ]; then
             echo "LOBU_TOKEN not set — skipping (expected for fork PRs)."
             echo "skip=true" >> "$GITHUB_OUTPUT"
+          elif [ -z "${ANTHROPIC:-}" ]; then
+            echo "ANTHROPIC_API_KEY not set — skipping until repo secret is configured."
+            echo "skip=true" >> "$GITHUB_OUTPUT"
           else
             echo "skip=false" >> "$GITHUB_OUTPUT"
           fi
@@ -57,10 +61,10 @@ jobs:
         working-directory: examples/atlas
         env:
           LOBU_TOKEN: ${{ secrets.LOBU_TOKEN }}
-          ANTHROPIC_API_KEY: ${{ secrets.LOBU_DOGFOOD_ANTHROPIC_API_KEY }}
+          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
         run: |
           if [ "${{ github.event_name }}" = "pull_request" ]; then
-            bunx --bun @lobu/cli apply --dry-run
+            bunx --bun @lobu/cli apply --org atlas --dry-run
           else
-            bunx --bun @lobu/cli apply --yes
+            bunx --bun @lobu/cli apply --org atlas --yes
           fi
diff --git a/packages/server/src/__tests__/integration/mcp/auth.test.ts b/packages/server/src/__tests__/integration/mcp/auth.test.ts
index d3a7d7fca..75aad4b47 100644
--- a/packages/server/src/__tests__/integration/mcp/auth.test.ts
+++ b/packages/server/src/__tests__/integration/mcp/auth.test.ts
@@ -785,6 +785,57 @@ describe('MCP Authentication', () => {
       );
     });
 
+    it('allows OAuth access token to cross-org when user has membership', async () => {
+      // PATs are intentionally org-scoped (above), but OAuth tokens bind to
+      // whichever org the user picked at consent time and the membership
+      // check is the real authorization gate. Without this, `lobu login`
+      // (which OAuths into one org) would lock the user out of every other
+      // org they're admin in — including from minting a PAT for that org.
+      //
+      // We assert the auth gate passes (not 403 with the cross-org message),
+      // not full MCP-handshake success — that needs initialize + notify and
+      // is covered elsewhere.
+      const org2 = await createTestOrganization({ name: 'OAuth Cross-Org Target' });
+      await addUserToOrganization(user.id, org2.id);
+      const { token } = await createTestAccessToken(user.id, org.id, client.client_id);
+
+      const response = await post(`/mcp/${org2.slug}`, {
+        body: {
+          jsonrpc: '2.0',
+          id: 1,
+          method: 'tools/list',
+          params: {},
+        },
+        token,
+      });
+
+      // Anything but the cross-org auth rejection is fine — 400 (missing
+      // MCP session) is the expected next failure since the test skips
+      // initialize, but 200 is also OK if the route gets that far.
+      expect(response.status).not.toBe(403);
+    });
+
+    it('rejects OAuth cross-org call when user is not a member', async () => {
+      const org2 = await createTestOrganization({ name: 'OAuth Stranger Org' });
+      // Deliberately not adding user to org2.
+      const { token } = await createTestAccessToken(user.id, org.id, client.client_id);
+
+      const response = await post(`/mcp/${org2.slug}`, {
+        body: {
+          jsonrpc: '2.0',
+          id: 1,
+          method: 'tools/list',
+          params: {},
+        },
+        token,
+      });
+
+      expect(response.status).toBe(403);
+      const body = await response.json();
+      expect(body.error).toBe('forbidden');
+      expect(body.error_description).toContain('not a member');
+    });
+
     it('should reject PAT without owl_pat_ prefix', async () => {
       const response = await post('/mcp', {
         body: {
diff --git a/packages/server/src/workspace/multi-tenant.ts b/packages/server/src/workspace/multi-tenant.ts
index ac848a7d9..8f823966f 100644
--- a/packages/server/src/workspace/multi-tenant.ts
+++ b/packages/server/src/workspace/multi-tenant.ts
@@ -339,21 +339,33 @@ export class MultiTenantProvider implements WorkspaceProvider {
 
       let effectiveOrgId = requestedOrgId;
 
-      // Token's bound org is the default. On scoped routes the URL slug must
-      // match the token's binding (already enforced); on unscoped /mcp we now
-      // resolve the default to the bound org instead of leaving it null. This
-      // matches the contract documented in `mcp-query-run-split.md`.
+      // Token's bound org is the default. PATs are intentionally org-scoped:
+      // a PAT minted for org A must never be usable against org B even if the
+      // owner has membership in both, so the URL slug must match the bound
+      // org strictly. OAuth tokens bind to whichever org the user picked at
+      // consent time but the user often has memberships in many orgs; the
+      // membership check below is the real authorization gate, so for OAuth
+      // we trust the URL slug and let membership decide. Without this, a
+      // user logged in via `lobu login` (which OAuths into one org) cannot
+      // hit cross-org admin routes like POST /api/:slug/tokens — the very
+      // call needed to bootstrap a PAT for the second org. On unscoped /mcp
+      // we still resolve the default to the bound org instead of leaving it
+      // null, matching the contract in `mcp-query-run-split.md`.
       if (authInfo.organizationId) {
         if (requestedOrgId && requestedOrgId !== authInfo.organizationId) {
-          return c.json(
-            {
-              error: 'forbidden',
-              error_description: 'Token organization does not match URL organization',
-            },
-            403
-          );
+          if (isPat) {
+            return c.json(
+              {
+                error: 'forbidden',
+                error_description: 'Token organization does not match URL organization',
+              },
+              403
+            );
+          }
+          effectiveOrgId = requestedOrgId;
+        } else {
+          effectiveOrgId = authInfo.organizationId;
         }
-        effectiveOrgId = authInfo.organizationId;
       }
 
       if (!effectiveOrgId) {