diff --git a/apps/identity-service/src/oauth-http.integration.test.ts b/apps/identity-service/src/oauth-http.integration.test.ts
new file mode 100644
index 00000000..0e975665
--- /dev/null
+++ b/apps/identity-service/src/oauth-http.integration.test.ts
@@ -0,0 +1,292 @@
+import type { AddressInfo } from 'node:net';
+import { INestApplication, Module } from '@nestjs/common';
+import { NestFactory } from '@nestjs/core';
+import { afterEach, describe, expect, it, vi } from 'vitest';
+import {
+  InMemoryOAuthTransactionRepository,
+  InMemorySessionRepository,
+  OAuthTransactionService,
+  SessionService,
+} from './auth-security';
+import { IdentityService, InMemoryIdentityRepository } from './identity-domain';
+import {
+  OAuthCallbackApplication,
+  type OAuthCallbackAuditEvent,
+} from './oauth-callback-application';
+import { OAuthHttpApplication } from './oauth-http-application';
+import {
+  OAUTH_CALLBACK_APPLICATION,
+  OAUTH_HTTP_APPLICATION,
+  OAuthHttpController,
+} from './oauth-http-controller';
+
+const NOW = new Date('2026-08-03T15:00:00.000Z');
+const WEB_ORIGIN = 'https://app.example.test';
+const GOOGLE_REDIRECT_URI =
+  'https://identity.example.test/v1/auth/google/callback';
+const GITHUB_REDIRECT_URI =
+  'https://identity.example.test/v1/auth/github/callback';
+const UUID_V4_PATTERN =
+  /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
+
+interface TestHarness {
+  app: INestApplication;
+  baseUrl: string;
+  auditEvents: OAuthCallbackAuditEvent[];
+  googleAuthenticate: ReturnType<typeof vi.fn>;
+  githubAuthenticate: ReturnType<typeof vi.fn>;
+}
+
+const activeApplications: INestApplication[] = [];
+
+function cookiePair(setCookie: string | null): string {
+  if (!setCookie) {
+    throw new Error('Expected Set-Cookie header');
+  }
+  return setCookie.split(';', 1)[0] as string;
+}
+
+function callbackState(location: string | null): string {
+  if (!location) {
+    throw new Error('Expected authorization redirect');
+  }
+  const state = new URL(location).searchParams.get('state');
+  if (!state) {
+    throw new Error('Expected OAuth state');
+  }
+  return state;
+}
+
+async function request(
+  baseUrl: string,
+  path: string,
+  init: RequestInit = {},
+): Promise<Response> {
+  return await fetch(`${baseUrl}${path}`, {
+    ...init,
+    redirect: 'manual',
+  });
+}
+
+async function createHarness(): Promise<TestHarness> {
+  const transactions = new OAuthTransactionService(
+    new InMemoryOAuthTransactionRepository(),
+    { now: () => NOW },
+  );
+  const sessions = new SessionService(new InMemorySessionRepository(), {
+    now: () => NOW,
+  });
+  const identities = new IdentityService(new InMemoryIdentityRepository());
+  const auditEvents: OAuthCallbackAuditEvent[] = [];
+  const googleAuthenticate = vi.fn(async () => ({
+    provider: 'google' as const,
+    subject: 'google-subject-integration',
+    issuer: 'https://accounts.google.com' as const,
+    email: 'integration@example.test',
+    emailVerified: true,
+    displayName: 'Google Integration User',
+  }));
+  const githubAuthenticate = vi.fn(async () => ({
+    provider: 'github' as const,
+    providerSubject: '9007199254740993',
+    displayName: 'GitHub Integration User',
+    verifiedEmail: 'integration@example.test',
+  }));
+  const httpApplication = new OAuthHttpApplication(transactions, sessions, {
+    providers: {
+      google: {
+        clientId: 'google-integration-client',
+        redirectUri: GOOGLE_REDIRECT_URI,
+      },
+      github: {
+        clientId: 'github-integration-client',
+        redirectUri: GITHUB_REDIRECT_URI,
+      },
+    },
+    webOrigin: WEB_ORIGIN,
+  });
+  const callbackApplication = new OAuthCallbackApplication(
+    transactions,
+    identities,
+    sessions,
+    {
+      google: { authenticateAuthorizationCode: googleAuthenticate },
+      github: { authenticateAuthorizationCode: githubAuthenticate },
+    },
+    {
+      record(event): void {
+        auditEvents.push({ ...event });
+      },
+    },
+    { webOrigin: WEB_ORIGIN, now: () => NOW },
+  );
+
+  @Module({
+    controllers: [OAuthHttpController],
+    providers: [
+      { provide: OAUTH_HTTP_APPLICATION, useValue: httpApplication },
+      { provide: OAUTH_CALLBACK_APPLICATION, useValue: callbackApplication },
+    ],
+  })
+  class OAuthHttpIntegrationModule {}
+
+  const app = await NestFactory.create(OAuthHttpIntegrationModule, {
+    logger: false,
+  });
+  await app.listen(0, '127.0.0.1');
+  activeApplications.push(app);
+  const address = app.getHttpServer().address() as AddressInfo;
+  return {
+    app,
+    baseUrl: `http://127.0.0.1:${address.port}`,
+    auditEvents,
+    googleAuthenticate,
+    githubAuthenticate,
+  };
+}
+
+afterEach(async () => {
+  await Promise.all(activeApplications.splice(0).map((app) => app.close()));
+});
+
+describe('OAuth HTTP integration', () => {
+  it('completes the Google browser-session lifecycle over HTTP', async () => {
+    const harness = await createHarness();
+
+    const start = await request(harness.baseUrl, '/v1/auth/google/start');
+    expect(start.status).toBe(303);
+    expect(start.headers.get('cache-control')).toBe('no-store');
+    expect(start.headers.get('location')).toContain(
+      'https://accounts.google.com/o/oauth2/v2/auth',
+    );
+    const browserSetCookie = start.headers.get('set-cookie');
+    expect(browserSetCookie).toContain('Path=/v1/auth');
+    expect(browserSetCookie).toContain('HttpOnly; Secure; SameSite=Lax');
+    const browserCookie = cookiePair(browserSetCookie);
+    const state = callbackState(start.headers.get('location'));
+
+    const callback = await request(
+      harness.baseUrl,
+      `/v1/auth/google/callback?code=google-code&state=${encodeURIComponent(state)}`,
+      { headers: { cookie: browserCookie } },
+    );
+    expect(callback.status).toBe(303);
+    expect(callback.headers.get('cache-control')).toBe('no-store');
+    expect(callback.headers.get('location')).toBe(
+      'https://app.example.test/auth/complete',
+    );
+    const correlationId = callback.headers.get('x-correlation-id');
+    expect(correlationId).toMatch(UUID_V4_PATTERN);
+    const sessionSetCookie = callback.headers.get('set-cookie');
+    expect(sessionSetCookie).toContain('Path=/');
+    expect(sessionSetCookie).toContain('HttpOnly; Secure; SameSite=Lax');
+    const sessionCookie = cookiePair(sessionSetCookie);
+    const sessionToken = sessionCookie.split('=', 2)[1] as string;
+
+    const session = await request(harness.baseUrl, '/v1/session', {
+      headers: { cookie: sessionCookie },
+    });
+    expect(session.status).toBe(200);
+    expect(session.headers.get('cache-control')).toBe('no-store');
+    const sessionBody = await session.json();
+    expect(sessionBody).toMatchObject({
+      sessionId: expect.stringMatching(UUID_V4_PATTERN),
+      userId: expect.stringMatching(UUID_V4_PATTERN),
+      workspaceId: expect.stringMatching(UUID_V4_PATTERN),
+    });
+    const serializedSession = JSON.stringify(sessionBody);
+    expect(serializedSession).not.toContain(sessionToken);
+    expect(serializedSession).not.toContain('google-code');
+    expect(serializedSession).not.toContain(state);
+
+    const replay = await request(
+      harness.baseUrl,
+      `/v1/auth/google/callback?code=google-code&state=${encodeURIComponent(state)}`,
+      { headers: { cookie: browserCookie } },
+    );
+    expect(replay.status).toBe(400);
+    expect(await replay.json()).toMatchObject({
+      status: 400,
+      code: 'oauth_callback_failed',
+    });
+
+    const logout = await request(harness.baseUrl, '/v1/auth/logout', {
+      method: 'POST',
+      headers: { cookie: sessionCookie },
+    });
+    expect(logout.status).toBe(204);
+    expect(logout.headers.get('set-cookie')).toContain(
+      'life_os_session=deleted; Path=/; Max-Age=0; HttpOnly; Secure; SameSite=Lax',
+    );
+
+    const repeatedLogout = await request(harness.baseUrl, '/v1/auth/logout', {
+      method: 'POST',
+      headers: { cookie: sessionCookie },
+    });
+    expect(repeatedLogout.status).toBe(204);
+
+    const revokedSession = await request(harness.baseUrl, '/v1/session', {
+      headers: { cookie: sessionCookie },
+    });
+    expect(revokedSession.status).toBe(401);
+    expect(await revokedSession.json()).toMatchObject({
+      status: 401,
+      code: 'authentication_required',
+    });
+    expect(harness.googleAuthenticate).toHaveBeenCalledTimes(1);
+    expect(harness.auditEvents).toEqual([
+      expect.objectContaining({
+        provider: 'google',
+        outcome: 'success',
+        correlationId,
+      }),
+      {
+        provider: 'google',
+        outcome: 'failure',
+        correlationId: expect.stringMatching(UUID_V4_PATTERN),
+      },
+    ]);
+  });
+
+  it('binds GitHub callbacks to the initiating browser', async () => {
+    const harness = await createHarness();
+    const start = await request(harness.baseUrl, '/v1/auth/github/start');
+    const browserCookie = cookiePair(start.headers.get('set-cookie'));
+    const state = callbackState(start.headers.get('location'));
+    const wrongBrowserCookie = `life_os_oauth_browser=${'x'.repeat(43)}`;
+    const callbackPath = `/v1/auth/github/callback?code=github-code&state=${encodeURIComponent(state)}`;
+
+    const rejected = await request(harness.baseUrl, callbackPath, {
+      headers: { cookie: wrongBrowserCookie },
+    });
+    expect(rejected.status).toBe(400);
+    expect(harness.githubAuthenticate).not.toHaveBeenCalled();
+
+    const accepted = await request(harness.baseUrl, callbackPath, {
+      headers: {
+        cookie: browserCookie,
+        'x-correlation-id': 'github-integration-correlation',
+      },
+    });
+    expect(accepted.status).toBe(303);
+    expect(accepted.headers.get('location')).toBe(
+      'https://app.example.test/auth/complete',
+    );
+    expect(accepted.headers.get('x-correlation-id')).toBe(
+      'github-integration-correlation',
+    );
+    expect(harness.githubAuthenticate).toHaveBeenCalledTimes(1);
+    expect(harness.auditEvents).toEqual([
+      {
+        provider: 'github',
+        outcome: 'failure',
+        correlationId: expect.stringMatching(UUID_V4_PATTERN),
+      },
+      expect.objectContaining({
+        provider: 'github',
+        outcome: 'success',
+        correlationId: 'github-integration-correlation',
+      }),
+    ]);
+  });
+});
diff --git a/docs/superpowers/plans/2026-08-03-oauth-http-integration-slice.md b/docs/superpowers/plans/2026-08-03-oauth-http-integration-slice.md
new file mode 100644
index 00000000..c17a3c73
--- /dev/null
+++ b/docs/superpowers/plans/2026-08-03-oauth-http-integration-slice.md
@@ -0,0 +1,18 @@
+# OAuth HTTP Integration Slice
+
+## Goal
+
+Verify the complete Google and GitHub browser-session lifecycle through the production NestJS controller boundary without contacting external providers.
+
+## Changes
+
+1. Start a real ephemeral NestJS HTTP server with the production OAuth controller and in-memory domain repositories.
+2. Exercise Google authorization start, callback completion, secure session cookie issuance, session introspection, replay rejection, logout, and revoked-session rejection.
+3. Exercise GitHub cross-browser state rejection before provider access, followed by successful completion from the bound browser.
+4. Assert fixed-origin redirects, no-store responses, secure cookie attributes, credential-free response bodies, correlation IDs, and structured audit outcomes.
+
+## Validation
+
+- formatting, lint, type checking, tests, and build pass;
+- AppGuardrail, Semgrep, Security Scan, and Commercial Readiness pass;
+- CodeRabbit and human/security review feedback contain no unresolved actionable findings.
diff --git a/package.json b/package.json
index 5fff9375..2f5b6e61 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "lint": "turbo run lint",
     "test": "turbo run test",
     "typecheck": "turbo run typecheck",
-    "format:check": "prettier --single-quote --check README.md package.json turbo.json tsconfig.base.json pnpm-workspace.yaml compose.yaml .appguardrail.json .github/workflows/ci.yml .github/workflows/appguardrail.yml security/appguardrail-contract.json packages/appguardrail-contract/package.json packages/appguardrail-contract/src/verify-contract.mjs packages/appguardrail-contract/src/verify-contract.test.mjs tests/appguardrail-fixtures/dangerous-cors.ts tests/appguardrail-fixtures/oauth-open-redirect.ts docs/security/appguardrail-regressions.md docs/superpowers/specs/2026-08-03-appguardrail-security-gate-design.md docs/superpowers/plans/2026-08-03-appguardrail-security-gate.md .github/workflows/commercial-readiness.yml product/commercial-readiness-policy.json product/capabilities.json packages/commercial-readiness/package.json packages/commercial-readiness/src/schema.mjs packages/commercial-readiness/src/schema.test.mjs packages/commercial-readiness/src/audit.mjs packages/commercial-readiness/src/audit.test.mjs packages/commercial-readiness/src/pr-gate.mjs packages/commercial-readiness/src/pr-gate.test.mjs packages/commercial-readiness/src/render.mjs packages/commercial-readiness/src/render.test.mjs packages/commercial-readiness/src/github-client.mjs packages/commercial-readiness/src/github-client.test.mjs packages/commercial-readiness/src/cli.mjs packages/commercial-readiness/src/cli.test.mjs packages/commercial-readiness/src/workflow-contract.test.mjs docs/superpowers/specs/2026-08-03-commercial-readiness-loop-design.md docs/superpowers/plans/2026-08-03-commercial-readiness-loop.md apps/identity-service/src/oauth-http-boundary.ts apps/identity-service/src/oauth-http-application.ts apps/identity-service/src/oauth-http-boundary.test.ts docs/superpowers/plans/2026-08-03-oauth-http-boundary-slice.md apps/identity-service/package.json apps/identity-service/src/main.ts apps/identity-service/src/oauth-http-controller.ts apps/identity-service/src/oauth-http-controller.test.ts apps/identity-service/src/identity-runtime.ts apps/identity-service/src/identity-runtime.test.ts docs/superpowers/plans/2026-08-03-oauth-controller-wiring-slice.md apps/identity-service/src/oauth-provider-http-client.ts apps/identity-service/src/tests/oauth-provider-http-client.test.ts docs/superpowers/plans/2026-08-03-oauth-provider-http-client-slice.md apps/identity-service/src/google-oidc-client.ts apps/identity-service/src/google-oidc-client.test.ts docs/superpowers/plans/2026-08-03-google-oidc-verifier-slice.md apps/identity-service/src/github-oauth-client.ts apps/identity-service/src/github-oauth-client.test.ts docs/superpowers/plans/2026-08-03-github-oauth-client-slice.md apps/identity-service/src/oauth-callback-application.ts apps/identity-service/src/oauth-callback-application.test.ts docs/superpowers/plans/2026-08-03-oauth-callback-orchestration-slice.md docs/superpowers/plans/2026-08-03-oauth-callback-runtime-wiring-slice.md docs/superpowers/plans/2026-08-03-oauth-open-redirect-regression-slice.md",
+    "format:check": "prettier --single-quote --check README.md package.json turbo.json tsconfig.base.json pnpm-workspace.yaml compose.yaml .appguardrail.json .github/workflows/ci.yml .github/workflows/appguardrail.yml security/appguardrail-contract.json packages/appguardrail-contract/package.json packages/appguardrail-contract/src/verify-contract.mjs packages/appguardrail-contract/src/verify-contract.test.mjs tests/appguardrail-fixtures/dangerous-cors.ts tests/appguardrail-fixtures/oauth-open-redirect.ts docs/security/appguardrail-regressions.md docs/superpowers/specs/2026-08-03-appguardrail-security-gate-design.md docs/superpowers/plans/2026-08-03-appguardrail-security-gate.md .github/workflows/commercial-readiness.yml product/commercial-readiness-policy.json product/capabilities.json packages/commercial-readiness/package.json packages/commercial-readiness/src/schema.mjs packages/commercial-readiness/src/schema.test.mjs packages/commercial-readiness/src/audit.mjs packages/commercial-readiness/src/audit.test.mjs packages/commercial-readiness/src/pr-gate.mjs packages/commercial-readiness/src/pr-gate.test.mjs packages/commercial-readiness/src/render.mjs packages/commercial-readiness/src/render.test.mjs packages/commercial-readiness/src/github-client.mjs packages/commercial-readiness/src/github-client.test.mjs packages/commercial-readiness/src/cli.mjs packages/commercial-readiness/src/cli.test.mjs packages/commercial-readiness/src/workflow-contract.test.mjs docs/superpowers/specs/2026-08-03-commercial-readiness-loop-design.md docs/superpowers/plans/2026-08-03-commercial-readiness-loop.md apps/identity-service/src/oauth-http-boundary.ts apps/identity-service/src/oauth-http-application.ts apps/identity-service/src/oauth-http-boundary.test.ts docs/superpowers/plans/2026-08-03-oauth-http-boundary-slice.md apps/identity-service/package.json apps/identity-service/src/main.ts apps/identity-service/src/oauth-http-controller.ts apps/identity-service/src/oauth-http-controller.test.ts apps/identity-service/src/oauth-http.integration.test.ts apps/identity-service/src/identity-runtime.ts apps/identity-service/src/identity-runtime.test.ts docs/superpowers/plans/2026-08-03-oauth-controller-wiring-slice.md apps/identity-service/src/oauth-provider-http-client.ts apps/identity-service/src/tests/oauth-provider-http-client.test.ts docs/superpowers/plans/2026-08-03-oauth-provider-http-client-slice.md apps/identity-service/src/google-oidc-client.ts apps/identity-service/src/google-oidc-client.test.ts docs/superpowers/plans/2026-08-03-google-oidc-verifier-slice.md apps/identity-service/src/github-oauth-client.ts apps/identity-service/src/github-oauth-client.test.ts docs/superpowers/plans/2026-08-03-github-oauth-client-slice.md apps/identity-service/src/oauth-callback-application.ts apps/identity-service/src/oauth-callback-application.test.ts docs/superpowers/plans/2026-08-03-oauth-callback-orchestration-slice.md docs/superpowers/plans/2026-08-03-oauth-callback-runtime-wiring-slice.md docs/superpowers/plans/2026-08-03-oauth-open-redirect-regression-slice.md docs/superpowers/plans/2026-08-03-oauth-http-integration-slice.md",
     "format": "prettier --single-quote --write ."
   },
   "devDependencies": {