@@ -28,4 +28,5 @@ jobs:
           cache: npm
       - run: npm ci --ignore-scripts
       - run: npm run typecheck
-      - run: npx vitest run test/agent-contract.test.ts test/agent-clone.test.ts test/agent-container.test.ts
+      # The Docker suites share one image tag and daemon, so run test files one at a time.
+      - run: npx vitest run --no-file-parallelism test/agent-contract.test.ts test/agent-clone.test.ts test/agent-container.test.ts test/agent-network.test.ts test/agent-policy.test.ts test/agent-proxy.test.ts
@@ -16,6 +16,8 @@ jobs:
           cache: npm
       - run: npm ci --ignore-scripts
       - run: npm run typecheck
-      - run: npm test
+      # The Docker agent suites run one file at a time in the Agent isolation workflow; running them here
+      # would put them in parallel against the same image tag and daemon.
+      - run: npm test -- --exclude test/agent-container.test.ts --exclude test/agent-network.test.ts
       - run: npx playwright install --with-deps chromium
       - run: npm run test:browser
@@ -11,7 +11,8 @@ RUN npm install --global --allow-scripts=@anthropic-ai/claude-code \
     && install --directory --owner=10001 --group=10001 --mode=0700 /home/codeboost \
     && install --directory --owner=10001 --group=10001 --mode=0755 /work /work/.git
 
-COPY --chmod=0555 probe.sh /usr/local/bin/codeboost-container-probe
+COPY --chmod=0555 container/probe.sh /usr/local/bin/codeboost-container-probe
+COPY --chmod=0444 network/proxy.mjs /usr/local/lib/codeboost-egress-proxy.mjs
 
 LABEL org.opencontainers.image.base.name="docker.io/library/node:26.7.0-bookworm@sha256:e929171d35b9df7773a3ec5b068e387fa109441dc90f91e6560af5d39b7e9bf1" \
       io.codeboost.codex.version="0.153.4" \
 
@@ -1,13 +1,14 @@
 import { execFileSync } from 'node:child_process';
-import { dirname } from 'node:path';
+import { dirname, join } from 'node:path';
 import { fileURLToPath } from 'node:url';
 
 export const AGENT_IMAGE = 'codeboost-agent:node26-codex0.153.4-claude2.1.281';
 export const BASE_IMAGE = 'docker.io/library/node:26.7.0-bookworm@sha256:e929171d35b9df7773a3ec5b068e387fa109441dc90f91e6560af5d39b7e9bf1';
 export const CODEX_VERSION = '0.153.4';
 export const CLAUDE_VERSION = '2.1.281';
 
-const context = dirname(fileURLToPath(import.meta.url));
+const containerDirectory = dirname(fileURLToPath(import.meta.url));
+const context = dirname(containerDirectory);
 const trustedImages = new Set<string>();
 
 export function assertBuiltAgentImage(imageId: string): void {
@@ -22,7 +23,8 @@ export function buildAgentImage(timeoutMs = 10 * 60_000): string {
     if (value <= 0) throw new Error('Agent image build exceeded its overall deadline.');
     return value;
   };
-  execFileSync('docker', ['build', '--pull=false', '--tag', AGENT_IMAGE, context], {
+  execFileSync('docker', ['build', '--pull=false', '--file', join(containerDirectory, 'Dockerfile'),
+    '--tag', AGENT_IMAGE, context], {
     timeout: remaining(), killSignal: 'SIGKILL', stdio: ['ignore', 'inherit', 'inherit'],
   });
   const inspect = JSON.parse(execFileSync('docker', ['image', 'inspect', AGENT_IMAGE], {
 
@@ -6,6 +6,8 @@ import { join } from 'node:path';
 import { assertCapturedInvocation, type InvocationInput, type Phase } from '../contract.ts';
 import { assertBuiltAgentImage } from './image.ts';
 import { assertTaskFilesystems, type TaskFilesystems } from './storage.ts';
+import { assertVendorNetwork, removeVendorNetwork, type VendorNetwork } from '../network/network.ts';
+import { assertAgentCommand, assertPhasePolicy, type AgentCommand, type PhasePolicy } from '../policy.ts';
 export interface ContainerProfile {
   readonly name: string;
   readonly args: readonly string[];
@@ -17,15 +19,19 @@ export interface ContainerProfile {
   readonly codexAuthFile?: string;
   readonly command: readonly string[];
   readonly ownershipId: string;
+  readonly network: VendorNetwork;
+  readonly policy: PhasePolicy;
 }
 export interface ProfileOptions {
   readonly invocation: InvocationInput;
   readonly filesystems: TaskFilesystems;
   readonly inputDirectory: string;
-  readonly command: readonly string[];
+  readonly command: AgentCommand;
   readonly imageId: string;
   readonly codexAuthFile?: string;
   readonly claudeToken?: string;
+  readonly network: VendorNetwork;
+  readonly policy: PhasePolicy;
 }
 
 interface FileIdentity {
@@ -40,10 +46,12 @@ interface FileIdentity {
 }
 interface ProfileIdentity { readonly inputDirectory: string; readonly schema: FileIdentity; readonly auth?: FileIdentity;
   readonly cleanupDirectories: readonly string[]; readonly filesystems: TaskFilesystems;
-  readonly clone: InvocationInput['clone']; readonly deadline: number }
+  readonly clone: InvocationInput['clone']; readonly deadline: number; readonly network: VendorNetwork;
+  readonly policy: PhasePolicy; readonly invocation: InvocationInput }
 type InputIdentity = Pick<ProfileIdentity, 'inputDirectory' | 'schema'>;
 interface InputCapture extends InputIdentity { readonly content: Buffer }
 const identities = new WeakMap<ContainerProfile, ProfileIdentity>();
+const claimedNetworks = new WeakSet<VendorNetwork>();
 const removeOwnedDirectory = (directory: string) => {
   if (!lstatSync(directory, { throwIfNoEntry: false })) return;
   chmodSync(directory, 0o700);
@@ -105,10 +113,13 @@ const captureInput = (directory: string): InputCapture => {
 };
 
 /** Internal authenticity and host-file revalidation used at every launch boundary. */
-export function assertContainerProfile(profile: ContainerProfile): void {
+export function assertContainerProfile(profile: ContainerProfile, timeoutMs = 30_000): void {
   const expected = identities.get(profile);
   if (!expected) throw new Error('Container profile was not created by the trusted profile builder.');
   assertTaskFilesystems(expected.filesystems, expected.clone);
+  // Every caller, including those using the default budget, is bounded by the invocation deadline.
+  assertVendorNetwork(expected.network, expected.invocation, profile.name, profileTimeout(profile, timeoutMs));
+  assertPhasePolicy(expected.policy, expected.invocation);
   const actual = captureInput(expected.inputDirectory);
   if (actual.inputDirectory !== expected.inputDirectory || !sameFile(actual.schema, expected.schema))
     throw new Error('Schema input changed after the profile was captured.');
@@ -118,6 +129,10 @@ export function assertContainerProfile(profile: ContainerProfile): void {
   }
 }
 
+export function isContainerProfileAuthentic(profile: ContainerProfile): boolean {
+  return identities.has(profile);
+}
+
 /** Clamp a Docker budget to the captured invocation deadline, which no launch may outlive. */
 export function profileTimeout(profile: ContainerProfile, timeoutMs: number, now = Date.now()): number {
   const expected = identities.get(profile);
@@ -131,7 +146,10 @@ export function profileTimeout(profile: ContainerProfile, timeoutMs: number, now
 export function disposeContainerProfile(profile: ContainerProfile): void {
   const identity = identities.get(profile);
   if (!identity) return;
-  removeOwnedDirectories(identity.cleanupDirectories);
+  const failures: unknown[] = [];
+  try { removeOwnedDirectories(identity.cleanupDirectories); } catch (error) { failures.push(error); }
+  try { removeVendorNetwork(identity.network); } catch (error) { failures.push(error); }
+  if (failures.length) throw new AggregateError(failures, 'Profile resource cleanup did not settle.');
   identities.delete(profile);
 }
 
@@ -150,26 +168,32 @@ export function createContainerProfile(options: ProfileOptions): ContainerProfil
   const { invocation, filesystems } = options;
   // Phase, vendor and deadline drive mount modes and credentials, so they must come from a captured request.
   assertCapturedInvocation(invocation);
-  if (!options.command.length || options.command.some(value => typeof value !== 'string' || value.includes('\0')))
-    throw new Error('Container command must be a complete literal argv array.');
   if (!/^sha256:[0-9a-f]{64}$/.test(options.imageId))
     throw new Error('Container profile requires the immutable built image ID.');
   assertBuiltAgentImage(options.imageId);
   assertTaskFilesystems(filesystems, invocation.clone);
-  const sourceInput = captureInput(options.inputDirectory);
-  if (invocation.vendor === 'codex' && (!options.codexAuthFile || options.claudeToken))
-    throw new Error('Codex requires only its auth file.');
-  if (invocation.vendor === 'claude' && (!options.claudeToken || options.codexAuthFile))
-    throw new Error('Claude requires only its OAuth token.');
-  if (options.claudeToken?.includes('\0')) throw new Error('Claude OAuth token is malformed.');
-  if (!/^codeboost-work-[0-9a-f-]+$/.test(filesystems.workVolume)
-    || !/^codeboost-metadata-[0-9a-f-]+$/.test(filesystems.metadataVolume)
-    || !/^codeboost-keeper-[0-9a-f-]+$/.test(filesystems.keeper)) throw new Error('Task filesystem identity is invalid.');
-  // Read through one no-follow descriptor so the path cannot be swapped between check and open.
-  const sourceAuth = options.codexAuthFile ? readCapturedFile(options.codexAuthFile, 'Codex auth') : undefined;
+  const invocationLeft = Math.floor(invocation.deadline - Date.now());
+  if (invocationLeft < 1) throw new Error('Invocation deadline has passed.');
+  assertVendorNetwork(options.network, invocation, undefined, Math.min(30_000, invocationLeft));
+  if (claimedNetworks.has(options.network)) throw new Error('Vendor network already belongs to another container profile.');
+  // Own the network from here on, so any later failure removes it rather than leaking it.
+  claimedNetworks.add(options.network);
   const cleanupDirectories: string[] = [];
   let codexAuthFile: string | undefined, authIdentity: FileIdentity | undefined;
   try {
+    assertPhasePolicy(options.policy, invocation);
+    const command = assertAgentCommand(options.command, options.policy, invocation.vendor);
+    const sourceInput = captureInput(options.inputDirectory);
+    if (invocation.vendor === 'codex' && (!options.codexAuthFile || options.claudeToken))
+      throw new Error('Codex requires only its auth file.');
+    if (invocation.vendor === 'claude' && (!options.claudeToken || options.codexAuthFile))
+      throw new Error('Claude requires only its OAuth token.');
+    if (options.claudeToken?.includes('\0')) throw new Error('Claude OAuth token is malformed.');
+    if (!/^codeboost-work-[0-9a-f-]+$/.test(filesystems.workVolume)
+      || !/^codeboost-metadata-[0-9a-f-]+$/.test(filesystems.metadataVolume)
+      || !/^codeboost-keeper-[0-9a-f-]+$/.test(filesystems.keeper)) throw new Error('Task filesystem identity is invalid.');
+    // Read through one no-follow descriptor so the path cannot be swapped between check and open.
+    const sourceAuth = options.codexAuthFile ? readCapturedFile(options.codexAuthFile, 'Codex auth') : undefined;
     const inputDirectory = mkdtempSync(join(tmpdir(), 'codeboost-input-'));
     cleanupDirectories.push(inputDirectory);
     writeFileSync(join(inputDirectory, 'schema.json'), sourceInput.content,
@@ -191,9 +215,12 @@ export function createContainerProfile(options: ProfileOptions): ContainerProfil
     const args = ['create', '--name', name, '--read-only', '--user', '10001:10001', '--cap-drop=ALL',
       '--security-opt=no-new-privileges', '--security-opt=seccomp=builtin', '--runtime=runc', '--pids-limit=128', '--memory=512m', '--memory-swap=512m',
       '--cpus=1', '--shm-size=16m', '--ipc=private', '--cgroupns=private',
-      '--network=none', '--env', 'HOME=/home/codeboost', '--env', `CODEBOOST_PHASE=${invocation.phase}`,
+      `--network=${options.network.name}`, '--dns=127.0.0.1', '--env', 'HOME=/home/codeboost',
+      '--env', `CODEBOOST_PHASE=${invocation.phase}`,
       '--label', `io.codeboost.invocation=${ownershipId}`,
       '--env', `CODEBOOST_VENDOR=${invocation.vendor}`, '--env', 'npm_config_cache=/tmp/npm-cache',
+      '--env', `HTTPS_PROXY=${options.network.proxyUrl}`, '--env', `HTTP_PROXY=${options.network.proxyUrl}`,
+      '--env', 'NO_PROXY=localhost,127.0.0.1',
       '--env', `CODEBOOST_WORK_BYTES=${filesystems.workBytes}`, '--env', `CODEBOOST_WORK_INODES=${filesystems.workInodes}`,
       '--env', `CODEBOOST_METADATA_BYTES=${filesystems.metadataBytes}`, '--env', `CODEBOOST_METADATA_INODES=${filesystems.metadataInodes}`,
       '--env', 'XDG_CACHE_HOME=/tmp/xdg-cache',
@@ -207,20 +234,22 @@ export function createContainerProfile(options: ProfileOptions): ContainerProfil
         '--tmpfs', '/run/codeboost-auth/codex:rw,nosuid,nodev,size=4194304,nr_inodes=256,uid=10001,gid=10001,mode=0700',
         '--mount', mount({ type: 'bind', source: codexAuthFile!, target: '/run/codeboost-auth/codex/auth.json', readonly: true }));
     } else args.push('--env', 'CLAUDE_CODE_OAUTH_TOKEN');
-    args.push(options.imageId, ...options.command);
+    args.push(options.imageId, ...command);
     const capturedFilesystems = filesystems;
     const profile = Object.freeze({ name, args: Object.freeze(args), expectedImage: options.imageId,
       phase: invocation.phase, vendor: invocation.vendor,
       filesystems: capturedFilesystems, inputDirectory: inputIdentity.inputDirectory, codexAuthFile,
-      command: Object.freeze([...options.command]), ownershipId });
+      command: Object.freeze([...command]), ownershipId, network: options.network, policy: options.policy });
     identities.set(profile, Object.freeze({ inputDirectory: inputIdentity.inputDirectory, schema: inputIdentity.schema,
       auth: authIdentity,
       cleanupDirectories: Object.freeze([...cleanupDirectories]), filesystems, clone: invocation.clone,
-      deadline: invocation.deadline }));
+      deadline: invocation.deadline, network: options.network, policy: options.policy, invocation }));
     return profile;
   } catch (error) {
-    try { removeOwnedDirectories(cleanupDirectories); }
-    catch (cleanupError) { throw new AggregateError([error, cleanupError], 'Profile creation and cleanup both failed.'); }
+    const failures: unknown[] = [];
+    try { removeOwnedDirectories(cleanupDirectories); } catch (cleanupError) { failures.push(cleanupError); }
+    try { removeVendorNetwork(options.network); } catch (cleanupError) { failures.push(cleanupError); }
+    if (failures.length) throw new AggregateError([error, ...failures], 'Profile creation and cleanup both failed.');
     throw error;
   }
 }