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Merged
Yury Semikhatsky (yury-s) merged 3 commits into from
May 15, 2026
Merged

feat(agents): add Codex --loop=codex generator #40817

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403fe0e
feat(agents): add Codex --loop=codex generator
0xharkirat May 13, 2026
6470835
fix(agents): underscore Codex agent names
0xharkirat May 13, 2026
007eada
chore(agents): address review feedback on Codex generator
0xharkirat May 13, 2026
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4 changes: 4 additions & 0 deletions docs/src/test-agents-js.md
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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,10 @@ npx playwright init-agents --loop=vscode
npx playwright init-agents --loop=claude
```

```bash tab=bash-codex
npx playwright init-agents --loop=codex
```

```bash tab=bash-opencode
npx playwright init-agents --loop=opencode
```
Expand Down
15 changes: 15 additions & 0 deletions packages/isomorphic/stringUtils.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -189,6 +189,21 @@ export function parseRegex(regex: string): RegExp {
return new RegExp(source, flags);
}

export function tomlBasicString(value: string): string {
// JSON.stringify produces a valid TOML basic string: escapes \", \\, \n, \r, \t and uses \uXXXX for control chars.
return JSON.stringify(value);
}

export function tomlArray(values: string[]): string {
return `[${values.map(value => tomlBasicString(value)).join(', ')}]`;
}

export function tomlMultilineBasicString(value: string): string {
// Triple-quoted basic string: escape backslashes first, then any literal """ sequences.
const escaped = value.replace(/\\/g, '\\\\').replace(/"""/g, '\\"\\"\\"');
return `"""\n${escaped}\n"""`;
}

// Semicolons removed from [[\]()#;?] to avoid polynomial backtracking
// when both that group and (?:;...)* can match runs of semicolons.
// \d{1,4} relaxed to \d{0,4} so empty params (e.g. ESC[;H) still match.
Expand Down
1 change: 1 addition & 0 deletions packages/playwright/src/agents/DEPS.list
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Open in desktop
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
[*]
@isomorphic/**
@utils/**
../mcp/test/
node_modules/colors/safe
Expand Down
60 changes: 60 additions & 0 deletions packages/playwright/src/agents/generateAgents.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -19,6 +19,7 @@ import path from 'path';

import colors from 'colors/safe';
import yaml from 'yaml';
import { tomlArray, tomlBasicString, tomlMultilineBasicString } from '@isomorphic/stringUtils';
import { mkdirIfNeeded } from '@utils/fileUtils';

import { defaultSeedFile, findSeedFile, seedFileContent, seedProject } from '../mcp/test/seed';
Expand DownExpand Up@@ -90,6 +91,64 @@ export class ClaudeGenerator {
}
}

export class CodexGenerator {
static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
await initRepo(fullConfig, projectName, {
promptsFolder: prompts ? '.codex/prompts' : undefined,
});

const agents = await loadAgentSpecs();

await fs.promises.mkdir('.codex/agents', { recursive: true });
for (const agent of agents)
await writeFile(`.codex/agents/${CodexGenerator.codexName(agent)}.toml`, CodexGenerator.agentSpec(agent), '🤖', 'agent definition');

initRepoDone();
}

// Codex's subagent registry rejects hyphenated identifiers at spawn time with
// `error=unknown agent_type '<name>'`. Codex's own documentation only shows
// snake_case names (`pr_explorer`, `reviewer`, `docs_researcher`, ...), see
// https://developers.openai.com/codex/subagents. Translate the shared agent
// name into snake_case so the filename and the `name` field stay in sync.
static codexName(agent: AgentSpec): string {
return agent.name.replace(/-/g, '_');
}

static agentSpec(agent: AgentSpec): string {
const mcpName = 'playwright-test';
const enabledTools: string[] = [];
for (const tool of agent.tools) {
const [first, second] = tool.split('/');
if (second && first === mcpName)
enabledTools.push(second);
}

const sandboxMode = agent.tools.includes('edit') ? 'workspace-write' : 'read-only';
const mcpServer = process.platform === 'win32'
? { command: 'cmd', args: ['/c', 'npx', 'playwright', 'run-test-mcp-server'] }
: { command: 'npx', args: ['playwright', 'run-test-mcp-server'] };

const examples = agent.examples.length
? ` Examples: ${agent.examples.map(example => `<example>${example}</example>`).join('')}`
: '';

const lines: string[] = [];
lines.push(`name = ${tomlBasicString(CodexGenerator.codexName(agent))}`);
lines.push(`description = ${tomlBasicString(agent.description + examples)}`);
lines.push(`sandbox_mode = ${tomlBasicString(sandboxMode)}`);
lines.push(`developer_instructions = ${tomlMultilineBasicString(agent.instructions)}`);
lines.push('');
lines.push(`[mcp_servers.${mcpName}]`);
lines.push(`command = ${tomlBasicString(mcpServer.command)}`);
lines.push(`args = ${tomlArray(mcpServer.args)}`);
if (enabledTools.length)
lines.push(`enabled_tools = ${tomlArray(enabledTools)}`);
lines.push('');
return lines.join('\n');
}
}

export class OpencodeGenerator {
static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
await initRepo(fullConfig, projectName, {
Expand DownExpand Up@@ -155,6 +214,7 @@ export class OpencodeGenerator {
return JSON.stringify(result, null, 2);
}
}

export class CopilotGenerator {
static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {

Expand Down
6 changes: 4 additions & 2 deletions packages/playwright/src/program.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -25,7 +25,7 @@ import { builtInReporters, config, configLoader } from './common';
import { runTests, clearCache, runTestServerAction } from './cli/testActions';
import { showReport, mergeReports } from './cli/reportActions';
import { TestServerBackend, testServerBackendTools } from './mcp/test/testBackend';
import { ClaudeGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { ClaudeGenerator, CodexGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { packageJSON } from './package';

export { program };
Expand DownExpand Up@@ -155,7 +155,7 @@ function addInitAgentsCommand(program: Command) {
const command = program.command('init-agents');
command.description('Initialize repository agents');
const option = command.createOption('--loop <loop>', 'Agentic loop provider');
option.choices(['claude', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
option.choices(['claude', 'codex', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
command.addOption(option);
command.option('-c, --config <file>', `Configuration file to find a project to use for seed test`);
command.option('--project <project>', 'Project to use for seed test');
Expand All@@ -168,6 +168,8 @@ function addInitAgentsCommand(program: Command) {
await VSCodeGenerator.init(loadedConfig, opts.project);
} else if (opts.loop === 'claude') {
await ClaudeGenerator.init(loadedConfig, opts.project, opts.prompts);
} else if (opts.loop === 'codex') {
await CodexGenerator.init(loadedConfig, opts.project, opts.prompts);
} else {
await CopilotGenerator.init(loadedConfig, opts.project, opts.prompts);
return;
Expand Down
31 changes: 31 additions & 0 deletions tests/mcp/init-agents.spec.ts
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Expand Up@@ -90,3 +90,34 @@ test('claude generates correct mcp config', async ({ }) => {
expect(mcpJson.mcpServers['playwright-test'].args).toEqual(['playwright', 'run-test-mcp-server']);
}
});

test('codex generates agent toml files', async ({ }) => {
const baseDir = await writeFiles({
'playwright.config.ts': `module.exports = {};`,
});

await runInitAgents({ cwd: baseDir, args: ['--loop', 'codex'] });

const agentsDir = path.join(baseDir, '.codex', 'agents');
expect(fs.existsSync(agentsDir)).toBe(true);

const plannerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_planner.toml'), 'utf-8');
expect(plannerToml).toContain(`name = "playwright_test_planner"`);
expect(plannerToml).toContain(`[mcp_servers.playwright-test]`);
expect(plannerToml).toContain(`developer_instructions = """`);
Comment thread
0xharkirat marked this conversation as resolved.
if (process.platform === 'win32') {
expect(plannerToml).toContain(`command = "cmd"`);
expect(plannerToml).toContain(`args = ["/c", "npx", "playwright", "run-test-mcp-server"]`);
} else {
expect(plannerToml).toContain(`command = "npx"`);
expect(plannerToml).toContain(`args = ["playwright", "run-test-mcp-server"]`);
}

expect(plannerToml).toContain(`sandbox_mode = "read-only"`);
expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"planner_save_plan"[^\]]*\]/);
expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"browser_navigate"[^\]]*\]/);

const healerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_healer.toml'), 'utf-8');
expect(healerToml).toContain(`sandbox_mode = "workspace-write"`);
expect(healerToml).toMatch(/enabled_tools = \[[^\]]*"test_debug"[^\]]*\]/);
});
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
feat(agents): add Codex --loop=codex generator by 0xharkirat · Pull Request #40817 · microsoft/playwright · GitHub
Skip to content
feat(agents): add Codex --loop=codex generator#40817

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 Merged

Yury Semikhatsky (yury-s)
merged 3 commits into

from

May 15, 2026
 Merged


feat(agents): add Codex --loop=codex generator
#40817
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403fe0e

feat(agents): add Codex --loop=codex generator


0xharkirat May 13, 2026
6470835

fix(agents): underscore Codex agent names


0xharkirat May 13, 2026
007eada

chore(agents): address review feedback on Codex generator


0xharkirat May 13, 2026

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4 changes: 4 additions & 0 deletions
docs/src/test-agents-js.md

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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,10 @@ npx playwright init-agents --loop=vscode
npx playwright init-agents --loop=claude
```

```bash tab=bash-codex
npx playwright init-agents --loop=codex
```

```bash tab=bash-opencode
npx playwright init-agents --loop=opencode
```
Expand Down

15 changes: 15 additions & 0 deletions
packages/isomorphic/stringUtils.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -189,6 +189,21 @@ export function parseRegex(regex: string): RegExp {
 return new RegExp(source, flags);
}

export function tomlBasicString(value: string): string {
 // JSON.stringify produces a valid TOML basic string: escapes \", \\, \n, \r, \t and uses \uXXXX for control chars.
 return JSON.stringify(value);
}

export function tomlArray(values: string[]): string {
 return `[${values.map(value => tomlBasicString(value)).join(', ')}]`;
}

export function tomlMultilineBasicString(value: string): string {
 // Triple-quoted basic string: escape backslashes first, then any literal """ sequences.
 const escaped = value.replace(/\\/g, '\\\\').replace(/"""/g, '\\"\\"\\"');
 return `"""\n${escaped}\n"""`;
}

// Semicolons removed from [[\]()#;?] to avoid polynomial backtracking
// when both that group and (?:;...)* can match runs of semicolons.
// \d{1,4} relaxed to \d{0,4} so empty params (e.g. ESC[;H) still match.
Expand Down

1 change: 1 addition & 0 deletions
packages/playwright/src/agents/DEPS.list

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Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
[*]
@isomorphic/**
@utils/**
../mcp/test/
node_modules/colors/safe
Expand Down

60 changes: 60 additions & 0 deletions
packages/playwright/src/agents/generateAgents.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -19,6 +19,7 @@ import path from 'path';

import colors from 'colors/safe';
import yaml from 'yaml';
import { tomlArray, tomlBasicString, tomlMultilineBasicString } from '@isomorphic/stringUtils';
import { mkdirIfNeeded } from '@utils/fileUtils';

import { defaultSeedFile, findSeedFile, seedFileContent, seedProject } from '../mcp/test/seed';
Expand DownExpand Up@@ -90,6 +91,64 @@ export class ClaudeGenerator {
 }
}

export class CodexGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
 promptsFolder: prompts ? '.codex/prompts' : undefined,
 });

 const agents = await loadAgentSpecs();

 await fs.promises.mkdir('.codex/agents', { recursive: true });
 for (const agent of agents)
 await writeFile(`.codex/agents/${CodexGenerator.codexName(agent)}.toml`, CodexGenerator.agentSpec(agent), '🤖', 'agent definition');

 initRepoDone();
 }

 // Codex's subagent registry rejects hyphenated identifiers at spawn time with
 // `error=unknown agent_type '<name>'`. Codex's own documentation only shows
 // snake_case names (`pr_explorer`, `reviewer`, `docs_researcher`, ...), see
 // https://developers.openai.com/codex/subagents. Translate the shared agent
 // name into snake_case so the filename and the `name` field stay in sync.
 static codexName(agent: AgentSpec): string {
 return agent.name.replace(/-/g, '_');
 }

 static agentSpec(agent: AgentSpec): string {
 const mcpName = 'playwright-test';
 const enabledTools: string[] = [];
 for (const tool of agent.tools) {
 const [first, second] = tool.split('/');
 if (second && first === mcpName)
 enabledTools.push(second);
 }

 const sandboxMode = agent.tools.includes('edit') ? 'workspace-write' : 'read-only';
 const mcpServer = process.platform === 'win32'
 ? { command: 'cmd', args: ['/c', 'npx', 'playwright', 'run-test-mcp-server'] }
 : { command: 'npx', args: ['playwright', 'run-test-mcp-server'] };

 const examples = agent.examples.length
 ? ` Examples: ${agent.examples.map(example => `<example>${example}</example>`).join('')}`
 : '';

 const lines: string[] = [];
 lines.push(`name = ${tomlBasicString(CodexGenerator.codexName(agent))}`);
 lines.push(`description = ${tomlBasicString(agent.description + examples)}`);
 lines.push(`sandbox_mode = ${tomlBasicString(sandboxMode)}`);
 lines.push(`developer_instructions = ${tomlMultilineBasicString(agent.instructions)}`);
 lines.push('');
 lines.push(`[mcp_servers.${mcpName}]`);
 lines.push(`command = ${tomlBasicString(mcpServer.command)}`);
 lines.push(`args = ${tomlArray(mcpServer.args)}`);
 if (enabledTools.length)
 lines.push(`enabled_tools = ${tomlArray(enabledTools)}`);
 lines.push('');
 return lines.join('\n');
 }
}

export class OpencodeGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
Expand DownExpand Up@@ -155,6 +214,7 @@ export class OpencodeGenerator {
 return JSON.stringify(result, null, 2);
 }
}

export class CopilotGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {

Expand Down

6 changes: 4 additions & 2 deletions
packages/playwright/src/program.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -25,7 +25,7 @@ import { builtInReporters, config, configLoader } from './common';
import { runTests, clearCache, runTestServerAction } from './cli/testActions';
import { showReport, mergeReports } from './cli/reportActions';
import { TestServerBackend, testServerBackendTools } from './mcp/test/testBackend';
import { ClaudeGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { ClaudeGenerator, CodexGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { packageJSON } from './package';

export { program };
Expand DownExpand Up@@ -155,7 +155,7 @@ function addInitAgentsCommand(program: Command) {
 const command = program.command('init-agents');
 command.description('Initialize repository agents');
 const option = command.createOption('--loop <loop>', 'Agentic loop provider');
 option.choices(['claude', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 option.choices(['claude', 'codex', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 command.addOption(option);
 command.option('-c, --config <file>', `Configuration file to find a project to use for seed test`);
 command.option('--project <project>', 'Project to use for seed test');
Expand All@@ -168,6 +168,8 @@ function addInitAgentsCommand(program: Command) {
 await VSCodeGenerator.init(loadedConfig, opts.project);
 } else if (opts.loop === 'claude') {
 await ClaudeGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else if (opts.loop === 'codex') {
 await CodexGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else {
 await CopilotGenerator.init(loadedConfig, opts.project, opts.prompts);
 return;
Expand Down

31 changes: 31 additions & 0 deletions
tests/mcp/init-agents.spec.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -90,3 +90,34 @@ test('claude generates correct mcp config', async ({ }) => {
 expect(mcpJson.mcpServers['playwright-test'].args).toEqual(['playwright', 'run-test-mcp-server']);
 }
});

test('codex generates agent toml files', async ({ }) => {
 const baseDir = await writeFiles({
 'playwright.config.ts': `module.exports = {};`,
 });

 await runInitAgents({ cwd: baseDir, args: ['--loop', 'codex'] });

 const agentsDir = path.join(baseDir, '.codex', 'agents');
 expect(fs.existsSync(agentsDir)).toBe(true);

 const plannerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_planner.toml'), 'utf-8');
 expect(plannerToml).toContain(`name = "playwright_test_planner"`);
 expect(plannerToml).toContain(`[mcp_servers.playwright-test]`);
 expect(plannerToml).toContain(`developer_instructions = """`);
Comment thread
0xharkirat marked this conversation as resolved.

 if (process.platform === 'win32') {
 expect(plannerToml).toContain(`command = "cmd"`);
 expect(plannerToml).toContain(`args = ["/c", "npx", "playwright", "run-test-mcp-server"]`);
 } else {
 expect(plannerToml).toContain(`command = "npx"`);
 expect(plannerToml).toContain(`args = ["playwright", "run-test-mcp-server"]`);
 }

 expect(plannerToml).toContain(`sandbox_mode = "read-only"`);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"planner_save_plan"[^\]]*\]/);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"browser_navigate"[^\]]*\]/);

 const healerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_healer.toml'), 'utf-8');
 expect(healerToml).toContain(`sandbox_mode = "workspace-write"`);
 expect(healerToml).toMatch(/enabled_tools = \[[^\]]*"test_debug"[^\]]*\]/);
});
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if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
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';
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})();
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} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
feat(agents): add Codex --loop=codex generator by 0xharkirat · Pull Request #40817 · microsoft/playwright · GitHub
Skip to content
feat(agents): add Codex --loop=codex generator#40817

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 Merged

Yury Semikhatsky (yury-s)
merged 3 commits into

from

May 15, 2026
 Merged


feat(agents): add Codex --loop=codex generator
#40817
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403fe0e

feat(agents): add Codex --loop=codex generator


0xharkirat May 13, 2026
6470835

fix(agents): underscore Codex agent names


0xharkirat May 13, 2026
007eada

chore(agents): address review feedback on Codex generator


0xharkirat May 13, 2026

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4 changes: 4 additions & 0 deletions
docs/src/test-agents-js.md

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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,10 @@ npx playwright init-agents --loop=vscode
npx playwright init-agents --loop=claude
```

```bash tab=bash-codex
npx playwright init-agents --loop=codex
```

```bash tab=bash-opencode
npx playwright init-agents --loop=opencode
```
Expand Down

15 changes: 15 additions & 0 deletions
packages/isomorphic/stringUtils.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -189,6 +189,21 @@ export function parseRegex(regex: string): RegExp {
 return new RegExp(source, flags);
}

export function tomlBasicString(value: string): string {
 // JSON.stringify produces a valid TOML basic string: escapes \", \\, \n, \r, \t and uses \uXXXX for control chars.
 return JSON.stringify(value);
}

export function tomlArray(values: string[]): string {
 return `[${values.map(value => tomlBasicString(value)).join(', ')}]`;
}

export function tomlMultilineBasicString(value: string): string {
 // Triple-quoted basic string: escape backslashes first, then any literal """ sequences.
 const escaped = value.replace(/\\/g, '\\\\').replace(/"""/g, '\\"\\"\\"');
 return `"""\n${escaped}\n"""`;
}

// Semicolons removed from [[\]()#;?] to avoid polynomial backtracking
// when both that group and (?:;...)* can match runs of semicolons.
// \d{1,4} relaxed to \d{0,4} so empty params (e.g. ESC[;H) still match.
Expand Down

1 change: 1 addition & 0 deletions
packages/playwright/src/agents/DEPS.list

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
[*]
@isomorphic/**
@utils/**
../mcp/test/
node_modules/colors/safe
Expand Down

60 changes: 60 additions & 0 deletions
packages/playwright/src/agents/generateAgents.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -19,6 +19,7 @@ import path from 'path';

import colors from 'colors/safe';
import yaml from 'yaml';
import { tomlArray, tomlBasicString, tomlMultilineBasicString } from '@isomorphic/stringUtils';
import { mkdirIfNeeded } from '@utils/fileUtils';

import { defaultSeedFile, findSeedFile, seedFileContent, seedProject } from '../mcp/test/seed';
Expand DownExpand Up@@ -90,6 +91,64 @@ export class ClaudeGenerator {
 }
}

export class CodexGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
 promptsFolder: prompts ? '.codex/prompts' : undefined,
 });

 const agents = await loadAgentSpecs();

 await fs.promises.mkdir('.codex/agents', { recursive: true });
 for (const agent of agents)
 await writeFile(`.codex/agents/${CodexGenerator.codexName(agent)}.toml`, CodexGenerator.agentSpec(agent), '🤖', 'agent definition');

 initRepoDone();
 }

 // Codex's subagent registry rejects hyphenated identifiers at spawn time with
 // `error=unknown agent_type '<name>'`. Codex's own documentation only shows
 // snake_case names (`pr_explorer`, `reviewer`, `docs_researcher`, ...), see
 // https://developers.openai.com/codex/subagents. Translate the shared agent
 // name into snake_case so the filename and the `name` field stay in sync.
 static codexName(agent: AgentSpec): string {
 return agent.name.replace(/-/g, '_');
 }

 static agentSpec(agent: AgentSpec): string {
 const mcpName = 'playwright-test';
 const enabledTools: string[] = [];
 for (const tool of agent.tools) {
 const [first, second] = tool.split('/');
 if (second && first === mcpName)
 enabledTools.push(second);
 }

 const sandboxMode = agent.tools.includes('edit') ? 'workspace-write' : 'read-only';
 const mcpServer = process.platform === 'win32'
 ? { command: 'cmd', args: ['/c', 'npx', 'playwright', 'run-test-mcp-server'] }
 : { command: 'npx', args: ['playwright', 'run-test-mcp-server'] };

 const examples = agent.examples.length
 ? ` Examples: ${agent.examples.map(example => `<example>${example}</example>`).join('')}`
 : '';

 const lines: string[] = [];
 lines.push(`name = ${tomlBasicString(CodexGenerator.codexName(agent))}`);
 lines.push(`description = ${tomlBasicString(agent.description + examples)}`);
 lines.push(`sandbox_mode = ${tomlBasicString(sandboxMode)}`);
 lines.push(`developer_instructions = ${tomlMultilineBasicString(agent.instructions)}`);
 lines.push('');
 lines.push(`[mcp_servers.${mcpName}]`);
 lines.push(`command = ${tomlBasicString(mcpServer.command)}`);
 lines.push(`args = ${tomlArray(mcpServer.args)}`);
 if (enabledTools.length)
 lines.push(`enabled_tools = ${tomlArray(enabledTools)}`);
 lines.push('');
 return lines.join('\n');
 }
}

export class OpencodeGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
Expand DownExpand Up@@ -155,6 +214,7 @@ export class OpencodeGenerator {
 return JSON.stringify(result, null, 2);
 }
}

export class CopilotGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {

Expand Down

6 changes: 4 additions & 2 deletions
packages/playwright/src/program.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -25,7 +25,7 @@ import { builtInReporters, config, configLoader } from './common';
import { runTests, clearCache, runTestServerAction } from './cli/testActions';
import { showReport, mergeReports } from './cli/reportActions';
import { TestServerBackend, testServerBackendTools } from './mcp/test/testBackend';
import { ClaudeGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { ClaudeGenerator, CodexGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { packageJSON } from './package';

export { program };
Expand DownExpand Up@@ -155,7 +155,7 @@ function addInitAgentsCommand(program: Command) {
 const command = program.command('init-agents');
 command.description('Initialize repository agents');
 const option = command.createOption('--loop <loop>', 'Agentic loop provider');
 option.choices(['claude', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 option.choices(['claude', 'codex', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 command.addOption(option);
 command.option('-c, --config <file>', `Configuration file to find a project to use for seed test`);
 command.option('--project <project>', 'Project to use for seed test');
Expand All@@ -168,6 +168,8 @@ function addInitAgentsCommand(program: Command) {
 await VSCodeGenerator.init(loadedConfig, opts.project);
 } else if (opts.loop === 'claude') {
 await ClaudeGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else if (opts.loop === 'codex') {
 await CodexGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else {
 await CopilotGenerator.init(loadedConfig, opts.project, opts.prompts);
 return;
Expand Down

31 changes: 31 additions & 0 deletions
tests/mcp/init-agents.spec.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -90,3 +90,34 @@ test('claude generates correct mcp config', async ({ }) => {
 expect(mcpJson.mcpServers['playwright-test'].args).toEqual(['playwright', 'run-test-mcp-server']);
 }
});

test('codex generates agent toml files', async ({ }) => {
 const baseDir = await writeFiles({
 'playwright.config.ts': `module.exports = {};`,
 });

 await runInitAgents({ cwd: baseDir, args: ['--loop', 'codex'] });

 const agentsDir = path.join(baseDir, '.codex', 'agents');
 expect(fs.existsSync(agentsDir)).toBe(true);

 const plannerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_planner.toml'), 'utf-8');
 expect(plannerToml).toContain(`name = "playwright_test_planner"`);
 expect(plannerToml).toContain(`[mcp_servers.playwright-test]`);
 expect(plannerToml).toContain(`developer_instructions = """`);
Comment thread
0xharkirat marked this conversation as resolved.

 if (process.platform === 'win32') {
 expect(plannerToml).toContain(`command = "cmd"`);
 expect(plannerToml).toContain(`args = ["/c", "npx", "playwright", "run-test-mcp-server"]`);
 } else {
 expect(plannerToml).toContain(`command = "npx"`);
 expect(plannerToml).toContain(`args = ["playwright", "run-test-mcp-server"]`);
 }

 expect(plannerToml).toContain(`sandbox_mode = "read-only"`);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"planner_save_plan"[^\]]*\]/);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"browser_navigate"[^\]]*\]/);

 const healerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_healer.toml'), 'utf-8');
 expect(healerToml).toContain(`sandbox_mode = "workspace-write"`);
 expect(healerToml).toMatch(/enabled_tools = \[[^\]]*"test_debug"[^\]]*\]/);
});
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
feat(agents): add Codex --loop=codex generator by 0xharkirat · Pull Request #40817 · microsoft/playwright · GitHub
Skip to content
feat(agents): add Codex --loop=codex generator#40817

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 Merged

Yury Semikhatsky (yury-s)
merged 3 commits into

from

May 15, 2026
 Merged


feat(agents): add Codex --loop=codex generator
#40817
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403fe0e

feat(agents): add Codex --loop=codex generator


0xharkirat May 13, 2026
6470835

fix(agents): underscore Codex agent names


0xharkirat May 13, 2026
007eada

chore(agents): address review feedback on Codex generator


0xharkirat May 13, 2026

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4 changes: 4 additions & 0 deletions
docs/src/test-agents-js.md

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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,10 @@ npx playwright init-agents --loop=vscode
npx playwright init-agents --loop=claude
```

```bash tab=bash-codex
npx playwright init-agents --loop=codex
```

```bash tab=bash-opencode
npx playwright init-agents --loop=opencode
```
Expand Down

15 changes: 15 additions & 0 deletions
packages/isomorphic/stringUtils.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -189,6 +189,21 @@ export function parseRegex(regex: string): RegExp {
 return new RegExp(source, flags);
}

export function tomlBasicString(value: string): string {
 // JSON.stringify produces a valid TOML basic string: escapes \", \\, \n, \r, \t and uses \uXXXX for control chars.
 return JSON.stringify(value);
}

export function tomlArray(values: string[]): string {
 return `[${values.map(value => tomlBasicString(value)).join(', ')}]`;
}

export function tomlMultilineBasicString(value: string): string {
 // Triple-quoted basic string: escape backslashes first, then any literal """ sequences.
 const escaped = value.replace(/\\/g, '\\\\').replace(/"""/g, '\\"\\"\\"');
 return `"""\n${escaped}\n"""`;
}

// Semicolons removed from [[\]()#;?] to avoid polynomial backtracking
// when both that group and (?:;...)* can match runs of semicolons.
// \d{1,4} relaxed to \d{0,4} so empty params (e.g. ESC[;H) still match.
Expand Down

1 change: 1 addition & 0 deletions
packages/playwright/src/agents/DEPS.list

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
[*]
@isomorphic/**
@utils/**
../mcp/test/
node_modules/colors/safe
Expand Down

60 changes: 60 additions & 0 deletions
packages/playwright/src/agents/generateAgents.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -19,6 +19,7 @@ import path from 'path';

import colors from 'colors/safe';
import yaml from 'yaml';
import { tomlArray, tomlBasicString, tomlMultilineBasicString } from '@isomorphic/stringUtils';
import { mkdirIfNeeded } from '@utils/fileUtils';

import { defaultSeedFile, findSeedFile, seedFileContent, seedProject } from '../mcp/test/seed';
Expand DownExpand Up@@ -90,6 +91,64 @@ export class ClaudeGenerator {
 }
}

export class CodexGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
 promptsFolder: prompts ? '.codex/prompts' : undefined,
 });

 const agents = await loadAgentSpecs();

 await fs.promises.mkdir('.codex/agents', { recursive: true });
 for (const agent of agents)
 await writeFile(`.codex/agents/${CodexGenerator.codexName(agent)}.toml`, CodexGenerator.agentSpec(agent), '🤖', 'agent definition');

 initRepoDone();
 }

 // Codex's subagent registry rejects hyphenated identifiers at spawn time with
 // `error=unknown agent_type '<name>'`. Codex's own documentation only shows
 // snake_case names (`pr_explorer`, `reviewer`, `docs_researcher`, ...), see
 // https://developers.openai.com/codex/subagents. Translate the shared agent
 // name into snake_case so the filename and the `name` field stay in sync.
 static codexName(agent: AgentSpec): string {
 return agent.name.replace(/-/g, '_');
 }

 static agentSpec(agent: AgentSpec): string {
 const mcpName = 'playwright-test';
 const enabledTools: string[] = [];
 for (const tool of agent.tools) {
 const [first, second] = tool.split('/');
 if (second && first === mcpName)
 enabledTools.push(second);
 }

 const sandboxMode = agent.tools.includes('edit') ? 'workspace-write' : 'read-only';
 const mcpServer = process.platform === 'win32'
 ? { command: 'cmd', args: ['/c', 'npx', 'playwright', 'run-test-mcp-server'] }
 : { command: 'npx', args: ['playwright', 'run-test-mcp-server'] };

 const examples = agent.examples.length
 ? ` Examples: ${agent.examples.map(example => `<example>${example}</example>`).join('')}`
 : '';

 const lines: string[] = [];
 lines.push(`name = ${tomlBasicString(CodexGenerator.codexName(agent))}`);
 lines.push(`description = ${tomlBasicString(agent.description + examples)}`);
 lines.push(`sandbox_mode = ${tomlBasicString(sandboxMode)}`);
 lines.push(`developer_instructions = ${tomlMultilineBasicString(agent.instructions)}`);
 lines.push('');
 lines.push(`[mcp_servers.${mcpName}]`);
 lines.push(`command = ${tomlBasicString(mcpServer.command)}`);
 lines.push(`args = ${tomlArray(mcpServer.args)}`);
 if (enabledTools.length)
 lines.push(`enabled_tools = ${tomlArray(enabledTools)}`);
 lines.push('');
 return lines.join('\n');
 }
}

export class OpencodeGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
Expand DownExpand Up@@ -155,6 +214,7 @@ export class OpencodeGenerator {
 return JSON.stringify(result, null, 2);
 }
}

export class CopilotGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {

Expand Down

6 changes: 4 additions & 2 deletions
packages/playwright/src/program.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -25,7 +25,7 @@ import { builtInReporters, config, configLoader } from './common';
import { runTests, clearCache, runTestServerAction } from './cli/testActions';
import { showReport, mergeReports } from './cli/reportActions';
import { TestServerBackend, testServerBackendTools } from './mcp/test/testBackend';
import { ClaudeGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { ClaudeGenerator, CodexGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { packageJSON } from './package';

export { program };
Expand DownExpand Up@@ -155,7 +155,7 @@ function addInitAgentsCommand(program: Command) {
 const command = program.command('init-agents');
 command.description('Initialize repository agents');
 const option = command.createOption('--loop <loop>', 'Agentic loop provider');
 option.choices(['claude', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 option.choices(['claude', 'codex', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 command.addOption(option);
 command.option('-c, --config <file>', `Configuration file to find a project to use for seed test`);
 command.option('--project <project>', 'Project to use for seed test');
Expand All@@ -168,6 +168,8 @@ function addInitAgentsCommand(program: Command) {
 await VSCodeGenerator.init(loadedConfig, opts.project);
 } else if (opts.loop === 'claude') {
 await ClaudeGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else if (opts.loop === 'codex') {
 await CodexGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else {
 await CopilotGenerator.init(loadedConfig, opts.project, opts.prompts);
 return;
Expand Down

31 changes: 31 additions & 0 deletions
tests/mcp/init-agents.spec.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -90,3 +90,34 @@ test('claude generates correct mcp config', async ({ }) => {
 expect(mcpJson.mcpServers['playwright-test'].args).toEqual(['playwright', 'run-test-mcp-server']);
 }
});

test('codex generates agent toml files', async ({ }) => {
 const baseDir = await writeFiles({
 'playwright.config.ts': `module.exports = {};`,
 });

 await runInitAgents({ cwd: baseDir, args: ['--loop', 'codex'] });

 const agentsDir = path.join(baseDir, '.codex', 'agents');
 expect(fs.existsSync(agentsDir)).toBe(true);

 const plannerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_planner.toml'), 'utf-8');
 expect(plannerToml).toContain(`name = "playwright_test_planner"`);
 expect(plannerToml).toContain(`[mcp_servers.playwright-test]`);
 expect(plannerToml).toContain(`developer_instructions = """`);
Comment thread
0xharkirat marked this conversation as resolved.

 if (process.platform === 'win32') {
 expect(plannerToml).toContain(`command = "cmd"`);
 expect(plannerToml).toContain(`args = ["/c", "npx", "playwright", "run-test-mcp-server"]`);
 } else {
 expect(plannerToml).toContain(`command = "npx"`);
 expect(plannerToml).toContain(`args = ["playwright", "run-test-mcp-server"]`);
 }

 expect(plannerToml).toContain(`sandbox_mode = "read-only"`);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"planner_save_plan"[^\]]*\]/);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"browser_navigate"[^\]]*\]/);

 const healerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_healer.toml'), 'utf-8');
 expect(healerToml).toContain(`sandbox_mode = "workspace-write"`);
 expect(healerToml).toMatch(/enabled_tools = \[[^\]]*"test_debug"[^\]]*\]/);
});
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
feat(agents): add Codex --loop=codex generator by 0xharkirat · Pull Request #40817 · microsoft/playwright · GitHub
Skip to content
feat(agents): add Codex --loop=codex generator#40817

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 Merged

Yury Semikhatsky (yury-s)
merged 3 commits into

from

May 15, 2026
 Merged


feat(agents): add Codex --loop=codex generator
#40817
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403fe0e

feat(agents): add Codex --loop=codex generator


0xharkirat May 13, 2026
6470835

fix(agents): underscore Codex agent names


0xharkirat May 13, 2026
007eada

chore(agents): address review feedback on Codex generator


0xharkirat May 13, 2026

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4 changes: 4 additions & 0 deletions
docs/src/test-agents-js.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,10 @@ npx playwright init-agents --loop=vscode
npx playwright init-agents --loop=claude
```

```bash tab=bash-codex
npx playwright init-agents --loop=codex
```

```bash tab=bash-opencode
npx playwright init-agents --loop=opencode
```
Expand Down

15 changes: 15 additions & 0 deletions
packages/isomorphic/stringUtils.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -189,6 +189,21 @@ export function parseRegex(regex: string): RegExp {
 return new RegExp(source, flags);
}

export function tomlBasicString(value: string): string {
 // JSON.stringify produces a valid TOML basic string: escapes \", \\, \n, \r, \t and uses \uXXXX for control chars.
 return JSON.stringify(value);
}

export function tomlArray(values: string[]): string {
 return `[${values.map(value => tomlBasicString(value)).join(', ')}]`;
}

export function tomlMultilineBasicString(value: string): string {
 // Triple-quoted basic string: escape backslashes first, then any literal """ sequences.
 const escaped = value.replace(/\\/g, '\\\\').replace(/"""/g, '\\"\\"\\"');
 return `"""\n${escaped}\n"""`;
}

// Semicolons removed from [[\]()#;?] to avoid polynomial backtracking
// when both that group and (?:;...)* can match runs of semicolons.
// \d{1,4} relaxed to \d{0,4} so empty params (e.g. ESC[;H) still match.
Expand Down

1 change: 1 addition & 0 deletions
packages/playwright/src/agents/DEPS.list

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
[*]
@isomorphic/**
@utils/**
../mcp/test/
node_modules/colors/safe
Expand Down

60 changes: 60 additions & 0 deletions
packages/playwright/src/agents/generateAgents.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -19,6 +19,7 @@ import path from 'path';

import colors from 'colors/safe';
import yaml from 'yaml';
import { tomlArray, tomlBasicString, tomlMultilineBasicString } from '@isomorphic/stringUtils';
import { mkdirIfNeeded } from '@utils/fileUtils';

import { defaultSeedFile, findSeedFile, seedFileContent, seedProject } from '../mcp/test/seed';
Expand DownExpand Up@@ -90,6 +91,64 @@ export class ClaudeGenerator {
 }
}

export class CodexGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
 promptsFolder: prompts ? '.codex/prompts' : undefined,
 });

 const agents = await loadAgentSpecs();

 await fs.promises.mkdir('.codex/agents', { recursive: true });
 for (const agent of agents)
 await writeFile(`.codex/agents/${CodexGenerator.codexName(agent)}.toml`, CodexGenerator.agentSpec(agent), '🤖', 'agent definition');

 initRepoDone();
 }

 // Codex's subagent registry rejects hyphenated identifiers at spawn time with
 // `error=unknown agent_type '<name>'`. Codex's own documentation only shows
 // snake_case names (`pr_explorer`, `reviewer`, `docs_researcher`, ...), see
 // https://developers.openai.com/codex/subagents. Translate the shared agent
 // name into snake_case so the filename and the `name` field stay in sync.
 static codexName(agent: AgentSpec): string {
 return agent.name.replace(/-/g, '_');
 }

 static agentSpec(agent: AgentSpec): string {
 const mcpName = 'playwright-test';
 const enabledTools: string[] = [];
 for (const tool of agent.tools) {
 const [first, second] = tool.split('/');
 if (second && first === mcpName)
 enabledTools.push(second);
 }

 const sandboxMode = agent.tools.includes('edit') ? 'workspace-write' : 'read-only';
 const mcpServer = process.platform === 'win32'
 ? { command: 'cmd', args: ['/c', 'npx', 'playwright', 'run-test-mcp-server'] }
 : { command: 'npx', args: ['playwright', 'run-test-mcp-server'] };

 const examples = agent.examples.length
 ? ` Examples: ${agent.examples.map(example => `<example>${example}</example>`).join('')}`
 : '';

 const lines: string[] = [];
 lines.push(`name = ${tomlBasicString(CodexGenerator.codexName(agent))}`);
 lines.push(`description = ${tomlBasicString(agent.description + examples)}`);
 lines.push(`sandbox_mode = ${tomlBasicString(sandboxMode)}`);
 lines.push(`developer_instructions = ${tomlMultilineBasicString(agent.instructions)}`);
 lines.push('');
 lines.push(`[mcp_servers.${mcpName}]`);
 lines.push(`command = ${tomlBasicString(mcpServer.command)}`);
 lines.push(`args = ${tomlArray(mcpServer.args)}`);
 if (enabledTools.length)
 lines.push(`enabled_tools = ${tomlArray(enabledTools)}`);
 lines.push('');
 return lines.join('\n');
 }
}

export class OpencodeGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
Expand DownExpand Up@@ -155,6 +214,7 @@ export class OpencodeGenerator {
 return JSON.stringify(result, null, 2);
 }
}

export class CopilotGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {

Expand Down

6 changes: 4 additions & 2 deletions
packages/playwright/src/program.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -25,7 +25,7 @@ import { builtInReporters, config, configLoader } from './common';
import { runTests, clearCache, runTestServerAction } from './cli/testActions';
import { showReport, mergeReports } from './cli/reportActions';
import { TestServerBackend, testServerBackendTools } from './mcp/test/testBackend';
import { ClaudeGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { ClaudeGenerator, CodexGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { packageJSON } from './package';

export { program };
Expand DownExpand Up@@ -155,7 +155,7 @@ function addInitAgentsCommand(program: Command) {
 const command = program.command('init-agents');
 command.description('Initialize repository agents');
 const option = command.createOption('--loop <loop>', 'Agentic loop provider');
 option.choices(['claude', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 option.choices(['claude', 'codex', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 command.addOption(option);
 command.option('-c, --config <file>', `Configuration file to find a project to use for seed test`);
 command.option('--project <project>', 'Project to use for seed test');
Expand All@@ -168,6 +168,8 @@ function addInitAgentsCommand(program: Command) {
 await VSCodeGenerator.init(loadedConfig, opts.project);
 } else if (opts.loop === 'claude') {
 await ClaudeGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else if (opts.loop === 'codex') {
 await CodexGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else {
 await CopilotGenerator.init(loadedConfig, opts.project, opts.prompts);
 return;
Expand Down

31 changes: 31 additions & 0 deletions
tests/mcp/init-agents.spec.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -90,3 +90,34 @@ test('claude generates correct mcp config', async ({ }) => {
 expect(mcpJson.mcpServers['playwright-test'].args).toEqual(['playwright', 'run-test-mcp-server']);
 }
});

test('codex generates agent toml files', async ({ }) => {
 const baseDir = await writeFiles({
 'playwright.config.ts': `module.exports = {};`,
 });

 await runInitAgents({ cwd: baseDir, args: ['--loop', 'codex'] });

 const agentsDir = path.join(baseDir, '.codex', 'agents');
 expect(fs.existsSync(agentsDir)).toBe(true);

 const plannerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_planner.toml'), 'utf-8');
 expect(plannerToml).toContain(`name = "playwright_test_planner"`);
 expect(plannerToml).toContain(`[mcp_servers.playwright-test]`);
 expect(plannerToml).toContain(`developer_instructions = """`);
Comment thread
0xharkirat marked this conversation as resolved.

 if (process.platform === 'win32') {
 expect(plannerToml).toContain(`command = "cmd"`);
 expect(plannerToml).toContain(`args = ["/c", "npx", "playwright", "run-test-mcp-server"]`);
 } else {
 expect(plannerToml).toContain(`command = "npx"`);
 expect(plannerToml).toContain(`args = ["playwright", "run-test-mcp-server"]`);
 }

 expect(plannerToml).toContain(`sandbox_mode = "read-only"`);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"planner_save_plan"[^\]]*\]/);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"browser_navigate"[^\]]*\]/);

 const healerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_healer.toml'), 'utf-8');
 expect(healerToml).toContain(`sandbox_mode = "workspace-write"`);
 expect(healerToml).toMatch(/enabled_tools = \[[^\]]*"test_debug"[^\]]*\]/);
});
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
feat(agents): add Codex --loop=codex generator by 0xharkirat · Pull Request #40817 · microsoft/playwright · GitHub
Skip to content
feat(agents): add Codex --loop=codex generator#40817

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 Merged

Yury Semikhatsky (yury-s)
merged 3 commits into

from

May 15, 2026
 Merged


feat(agents): add Codex --loop=codex generator
#40817
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403fe0e

feat(agents): add Codex --loop=codex generator


0xharkirat May 13, 2026
6470835

fix(agents): underscore Codex agent names


0xharkirat May 13, 2026
007eada

chore(agents): address review feedback on Codex generator


0xharkirat May 13, 2026

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4 changes: 4 additions & 0 deletions
docs/src/test-agents-js.md

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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,10 @@ npx playwright init-agents --loop=vscode
npx playwright init-agents --loop=claude
```

```bash tab=bash-codex
npx playwright init-agents --loop=codex
```

```bash tab=bash-opencode
npx playwright init-agents --loop=opencode
```
Expand Down

15 changes: 15 additions & 0 deletions
packages/isomorphic/stringUtils.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -189,6 +189,21 @@ export function parseRegex(regex: string): RegExp {
 return new RegExp(source, flags);
}

export function tomlBasicString(value: string): string {
 // JSON.stringify produces a valid TOML basic string: escapes \", \\, \n, \r, \t and uses \uXXXX for control chars.
 return JSON.stringify(value);
}

export function tomlArray(values: string[]): string {
 return `[${values.map(value => tomlBasicString(value)).join(', ')}]`;
}

export function tomlMultilineBasicString(value: string): string {
 // Triple-quoted basic string: escape backslashes first, then any literal """ sequences.
 const escaped = value.replace(/\\/g, '\\\\').replace(/"""/g, '\\"\\"\\"');
 return `"""\n${escaped}\n"""`;
}

// Semicolons removed from [[\]()#;?] to avoid polynomial backtracking
// when both that group and (?:;...)* can match runs of semicolons.
// \d{1,4} relaxed to \d{0,4} so empty params (e.g. ESC[;H) still match.
Expand Down

1 change: 1 addition & 0 deletions
packages/playwright/src/agents/DEPS.list

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
[*]
@isomorphic/**
@utils/**
../mcp/test/
node_modules/colors/safe
Expand Down

60 changes: 60 additions & 0 deletions
packages/playwright/src/agents/generateAgents.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -19,6 +19,7 @@ import path from 'path';

import colors from 'colors/safe';
import yaml from 'yaml';
import { tomlArray, tomlBasicString, tomlMultilineBasicString } from '@isomorphic/stringUtils';
import { mkdirIfNeeded } from '@utils/fileUtils';

import { defaultSeedFile, findSeedFile, seedFileContent, seedProject } from '../mcp/test/seed';
Expand DownExpand Up@@ -90,6 +91,64 @@ export class ClaudeGenerator {
 }
}

export class CodexGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
 promptsFolder: prompts ? '.codex/prompts' : undefined,
 });

 const agents = await loadAgentSpecs();

 await fs.promises.mkdir('.codex/agents', { recursive: true });
 for (const agent of agents)
 await writeFile(`.codex/agents/${CodexGenerator.codexName(agent)}.toml`, CodexGenerator.agentSpec(agent), '🤖', 'agent definition');

 initRepoDone();
 }

 // Codex's subagent registry rejects hyphenated identifiers at spawn time with
 // `error=unknown agent_type '<name>'`. Codex's own documentation only shows
 // snake_case names (`pr_explorer`, `reviewer`, `docs_researcher`, ...), see
 // https://developers.openai.com/codex/subagents. Translate the shared agent
 // name into snake_case so the filename and the `name` field stay in sync.
 static codexName(agent: AgentSpec): string {
 return agent.name.replace(/-/g, '_');
 }

 static agentSpec(agent: AgentSpec): string {
 const mcpName = 'playwright-test';
 const enabledTools: string[] = [];
 for (const tool of agent.tools) {
 const [first, second] = tool.split('/');
 if (second && first === mcpName)
 enabledTools.push(second);
 }

 const sandboxMode = agent.tools.includes('edit') ? 'workspace-write' : 'read-only';
 const mcpServer = process.platform === 'win32'
 ? { command: 'cmd', args: ['/c', 'npx', 'playwright', 'run-test-mcp-server'] }
 : { command: 'npx', args: ['playwright', 'run-test-mcp-server'] };

 const examples = agent.examples.length
 ? ` Examples: ${agent.examples.map(example => `<example>${example}</example>`).join('')}`
 : '';

 const lines: string[] = [];
 lines.push(`name = ${tomlBasicString(CodexGenerator.codexName(agent))}`);
 lines.push(`description = ${tomlBasicString(agent.description + examples)}`);
 lines.push(`sandbox_mode = ${tomlBasicString(sandboxMode)}`);
 lines.push(`developer_instructions = ${tomlMultilineBasicString(agent.instructions)}`);
 lines.push('');
 lines.push(`[mcp_servers.${mcpName}]`);
 lines.push(`command = ${tomlBasicString(mcpServer.command)}`);
 lines.push(`args = ${tomlArray(mcpServer.args)}`);
 if (enabledTools.length)
 lines.push(`enabled_tools = ${tomlArray(enabledTools)}`);
 lines.push('');
 return lines.join('\n');
 }
}

export class OpencodeGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
Expand DownExpand Up@@ -155,6 +214,7 @@ export class OpencodeGenerator {
 return JSON.stringify(result, null, 2);
 }
}

export class CopilotGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {

Expand Down

6 changes: 4 additions & 2 deletions
packages/playwright/src/program.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -25,7 +25,7 @@ import { builtInReporters, config, configLoader } from './common';
import { runTests, clearCache, runTestServerAction } from './cli/testActions';
import { showReport, mergeReports } from './cli/reportActions';
import { TestServerBackend, testServerBackendTools } from './mcp/test/testBackend';
import { ClaudeGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { ClaudeGenerator, CodexGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { packageJSON } from './package';

export { program };
Expand DownExpand Up@@ -155,7 +155,7 @@ function addInitAgentsCommand(program: Command) {
 const command = program.command('init-agents');
 command.description('Initialize repository agents');
 const option = command.createOption('--loop <loop>', 'Agentic loop provider');
 option.choices(['claude', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 option.choices(['claude', 'codex', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 command.addOption(option);
 command.option('-c, --config <file>', `Configuration file to find a project to use for seed test`);
 command.option('--project <project>', 'Project to use for seed test');
Expand All@@ -168,6 +168,8 @@ function addInitAgentsCommand(program: Command) {
 await VSCodeGenerator.init(loadedConfig, opts.project);
 } else if (opts.loop === 'claude') {
 await ClaudeGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else if (opts.loop === 'codex') {
 await CodexGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else {
 await CopilotGenerator.init(loadedConfig, opts.project, opts.prompts);
 return;
Expand Down

31 changes: 31 additions & 0 deletions
tests/mcp/init-agents.spec.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -90,3 +90,34 @@ test('claude generates correct mcp config', async ({ }) => {
 expect(mcpJson.mcpServers['playwright-test'].args).toEqual(['playwright', 'run-test-mcp-server']);
 }
});

test('codex generates agent toml files', async ({ }) => {
 const baseDir = await writeFiles({
 'playwright.config.ts': `module.exports = {};`,
 });

 await runInitAgents({ cwd: baseDir, args: ['--loop', 'codex'] });

 const agentsDir = path.join(baseDir, '.codex', 'agents');
 expect(fs.existsSync(agentsDir)).toBe(true);

 const plannerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_planner.toml'), 'utf-8');
 expect(plannerToml).toContain(`name = "playwright_test_planner"`);
 expect(plannerToml).toContain(`[mcp_servers.playwright-test]`);
 expect(plannerToml).toContain(`developer_instructions = """`);
Comment thread
0xharkirat marked this conversation as resolved.

 if (process.platform === 'win32') {
 expect(plannerToml).toContain(`command = "cmd"`);
 expect(plannerToml).toContain(`args = ["/c", "npx", "playwright", "run-test-mcp-server"]`);
 } else {
 expect(plannerToml).toContain(`command = "npx"`);
 expect(plannerToml).toContain(`args = ["playwright", "run-test-mcp-server"]`);
 }

 expect(plannerToml).toContain(`sandbox_mode = "read-only"`);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"planner_save_plan"[^\]]*\]/);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"browser_navigate"[^\]]*\]/);

 const healerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_healer.toml'), 'utf-8');
 expect(healerToml).toContain(`sandbox_mode = "workspace-write"`);
 expect(healerToml).toMatch(/enabled_tools = \[[^\]]*"test_debug"[^\]]*\]/);
});
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
feat(agents): add Codex --loop=codex generator by 0xharkirat · Pull Request #40817 · microsoft/playwright · GitHub
Skip to content
feat(agents): add Codex --loop=codex generator#40817

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 Merged

Yury Semikhatsky (yury-s)
merged 3 commits into

from

May 15, 2026
 Merged


feat(agents): add Codex --loop=codex generator
#40817
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403fe0e

feat(agents): add Codex --loop=codex generator


0xharkirat May 13, 2026
6470835

fix(agents): underscore Codex agent names


0xharkirat May 13, 2026
007eada

chore(agents): address review feedback on Codex generator


0xharkirat May 13, 2026

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4 changes: 4 additions & 0 deletions
docs/src/test-agents-js.md

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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,10 @@ npx playwright init-agents --loop=vscode
npx playwright init-agents --loop=claude
```

```bash tab=bash-codex
npx playwright init-agents --loop=codex
```

```bash tab=bash-opencode
npx playwright init-agents --loop=opencode
```
Expand Down

15 changes: 15 additions & 0 deletions
packages/isomorphic/stringUtils.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -189,6 +189,21 @@ export function parseRegex(regex: string): RegExp {
 return new RegExp(source, flags);
}

export function tomlBasicString(value: string): string {
 // JSON.stringify produces a valid TOML basic string: escapes \", \\, \n, \r, \t and uses \uXXXX for control chars.
 return JSON.stringify(value);
}

export function tomlArray(values: string[]): string {
 return `[${values.map(value => tomlBasicString(value)).join(', ')}]`;
}

export function tomlMultilineBasicString(value: string): string {
 // Triple-quoted basic string: escape backslashes first, then any literal """ sequences.
 const escaped = value.replace(/\\/g, '\\\\').replace(/"""/g, '\\"\\"\\"');
 return `"""\n${escaped}\n"""`;
}

// Semicolons removed from [[\]()#;?] to avoid polynomial backtracking
// when both that group and (?:;...)* can match runs of semicolons.
// \d{1,4} relaxed to \d{0,4} so empty params (e.g. ESC[;H) still match.
Expand Down

1 change: 1 addition & 0 deletions
packages/playwright/src/agents/DEPS.list

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
[*]
@isomorphic/**
@utils/**
../mcp/test/
node_modules/colors/safe
Expand Down

60 changes: 60 additions & 0 deletions
packages/playwright/src/agents/generateAgents.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -19,6 +19,7 @@ import path from 'path';

import colors from 'colors/safe';
import yaml from 'yaml';
import { tomlArray, tomlBasicString, tomlMultilineBasicString } from '@isomorphic/stringUtils';
import { mkdirIfNeeded } from '@utils/fileUtils';

import { defaultSeedFile, findSeedFile, seedFileContent, seedProject } from '../mcp/test/seed';
Expand DownExpand Up@@ -90,6 +91,64 @@ export class ClaudeGenerator {
 }
}

export class CodexGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
 promptsFolder: prompts ? '.codex/prompts' : undefined,
 });

 const agents = await loadAgentSpecs();

 await fs.promises.mkdir('.codex/agents', { recursive: true });
 for (const agent of agents)
 await writeFile(`.codex/agents/${CodexGenerator.codexName(agent)}.toml`, CodexGenerator.agentSpec(agent), '🤖', 'agent definition');

 initRepoDone();
 }

 // Codex's subagent registry rejects hyphenated identifiers at spawn time with
 // `error=unknown agent_type '<name>'`. Codex's own documentation only shows
 // snake_case names (`pr_explorer`, `reviewer`, `docs_researcher`, ...), see
 // https://developers.openai.com/codex/subagents. Translate the shared agent
 // name into snake_case so the filename and the `name` field stay in sync.
 static codexName(agent: AgentSpec): string {
 return agent.name.replace(/-/g, '_');
 }

 static agentSpec(agent: AgentSpec): string {
 const mcpName = 'playwright-test';
 const enabledTools: string[] = [];
 for (const tool of agent.tools) {
 const [first, second] = tool.split('/');
 if (second && first === mcpName)
 enabledTools.push(second);
 }

 const sandboxMode = agent.tools.includes('edit') ? 'workspace-write' : 'read-only';
 const mcpServer = process.platform === 'win32'
 ? { command: 'cmd', args: ['/c', 'npx', 'playwright', 'run-test-mcp-server'] }
 : { command: 'npx', args: ['playwright', 'run-test-mcp-server'] };

 const examples = agent.examples.length
 ? ` Examples: ${agent.examples.map(example => `<example>${example}</example>`).join('')}`
 : '';

 const lines: string[] = [];
 lines.push(`name = ${tomlBasicString(CodexGenerator.codexName(agent))}`);
 lines.push(`description = ${tomlBasicString(agent.description + examples)}`);
 lines.push(`sandbox_mode = ${tomlBasicString(sandboxMode)}`);
 lines.push(`developer_instructions = ${tomlMultilineBasicString(agent.instructions)}`);
 lines.push('');
 lines.push(`[mcp_servers.${mcpName}]`);
 lines.push(`command = ${tomlBasicString(mcpServer.command)}`);
 lines.push(`args = ${tomlArray(mcpServer.args)}`);
 if (enabledTools.length)
 lines.push(`enabled_tools = ${tomlArray(enabledTools)}`);
 lines.push('');
 return lines.join('\n');
 }
}

export class OpencodeGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
Expand DownExpand Up@@ -155,6 +214,7 @@ export class OpencodeGenerator {
 return JSON.stringify(result, null, 2);
 }
}

export class CopilotGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {

Expand Down

6 changes: 4 additions & 2 deletions
packages/playwright/src/program.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -25,7 +25,7 @@ import { builtInReporters, config, configLoader } from './common';
import { runTests, clearCache, runTestServerAction } from './cli/testActions';
import { showReport, mergeReports } from './cli/reportActions';
import { TestServerBackend, testServerBackendTools } from './mcp/test/testBackend';
import { ClaudeGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { ClaudeGenerator, CodexGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { packageJSON } from './package';

export { program };
Expand DownExpand Up@@ -155,7 +155,7 @@ function addInitAgentsCommand(program: Command) {
 const command = program.command('init-agents');
 command.description('Initialize repository agents');
 const option = command.createOption('--loop <loop>', 'Agentic loop provider');
 option.choices(['claude', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 option.choices(['claude', 'codex', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 command.addOption(option);
 command.option('-c, --config <file>', `Configuration file to find a project to use for seed test`);
 command.option('--project <project>', 'Project to use for seed test');
Expand All@@ -168,6 +168,8 @@ function addInitAgentsCommand(program: Command) {
 await VSCodeGenerator.init(loadedConfig, opts.project);
 } else if (opts.loop === 'claude') {
 await ClaudeGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else if (opts.loop === 'codex') {
 await CodexGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else {
 await CopilotGenerator.init(loadedConfig, opts.project, opts.prompts);
 return;
Expand Down

31 changes: 31 additions & 0 deletions
tests/mcp/init-agents.spec.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -90,3 +90,34 @@ test('claude generates correct mcp config', async ({ }) => {
 expect(mcpJson.mcpServers['playwright-test'].args).toEqual(['playwright', 'run-test-mcp-server']);
 }
});

test('codex generates agent toml files', async ({ }) => {
 const baseDir = await writeFiles({
 'playwright.config.ts': `module.exports = {};`,
 });

 await runInitAgents({ cwd: baseDir, args: ['--loop', 'codex'] });

 const agentsDir = path.join(baseDir, '.codex', 'agents');
 expect(fs.existsSync(agentsDir)).toBe(true);

 const plannerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_planner.toml'), 'utf-8');
 expect(plannerToml).toContain(`name = "playwright_test_planner"`);
 expect(plannerToml).toContain(`[mcp_servers.playwright-test]`);
 expect(plannerToml).toContain(`developer_instructions = """`);
Comment thread
0xharkirat marked this conversation as resolved.

 if (process.platform === 'win32') {
 expect(plannerToml).toContain(`command = "cmd"`);
 expect(plannerToml).toContain(`args = ["/c", "npx", "playwright", "run-test-mcp-server"]`);
 } else {
 expect(plannerToml).toContain(`command = "npx"`);
 expect(plannerToml).toContain(`args = ["playwright", "run-test-mcp-server"]`);
 }

 expect(plannerToml).toContain(`sandbox_mode = "read-only"`);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"planner_save_plan"[^\]]*\]/);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"browser_navigate"[^\]]*\]/);

 const healerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_healer.toml'), 'utf-8');
 expect(healerToml).toContain(`sandbox_mode = "workspace-write"`);
 expect(healerToml).toMatch(/enabled_tools = \[[^\]]*"test_debug"[^\]]*\]/);
});
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
feat(agents): add Codex --loop=codex generator by 0xharkirat · Pull Request #40817 · microsoft/playwright · GitHub
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 Merged

Yury Semikhatsky (yury-s)
merged 3 commits into

from

May 15, 2026
 Merged


feat(agents): add Codex --loop=codex generator
#40817
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403fe0e

feat(agents): add Codex --loop=codex generator


0xharkirat May 13, 2026
6470835

fix(agents): underscore Codex agent names


0xharkirat May 13, 2026
007eada

chore(agents): address review feedback on Codex generator


0xharkirat May 13, 2026

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4 changes: 4 additions & 0 deletions
docs/src/test-agents-js.md

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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,10 @@ npx playwright init-agents --loop=vscode
npx playwright init-agents --loop=claude
```

```bash tab=bash-codex
npx playwright init-agents --loop=codex
```

```bash tab=bash-opencode
npx playwright init-agents --loop=opencode
```
Expand Down

15 changes: 15 additions & 0 deletions
packages/isomorphic/stringUtils.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -189,6 +189,21 @@ export function parseRegex(regex: string): RegExp {
 return new RegExp(source, flags);
}

export function tomlBasicString(value: string): string {
 // JSON.stringify produces a valid TOML basic string: escapes \", \\, \n, \r, \t and uses \uXXXX for control chars.
 return JSON.stringify(value);
}

export function tomlArray(values: string[]): string {
 return `[${values.map(value => tomlBasicString(value)).join(', ')}]`;
}

export function tomlMultilineBasicString(value: string): string {
 // Triple-quoted basic string: escape backslashes first, then any literal """ sequences.
 const escaped = value.replace(/\\/g, '\\\\').replace(/"""/g, '\\"\\"\\"');
 return `"""\n${escaped}\n"""`;
}

// Semicolons removed from [[\]()#;?] to avoid polynomial backtracking
// when both that group and (?:;...)* can match runs of semicolons.
// \d{1,4} relaxed to \d{0,4} so empty params (e.g. ESC[;H) still match.
Expand Down

1 change: 1 addition & 0 deletions
packages/playwright/src/agents/DEPS.list

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Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
[*]
@isomorphic/**
@utils/**
../mcp/test/
node_modules/colors/safe
Expand Down

60 changes: 60 additions & 0 deletions
packages/playwright/src/agents/generateAgents.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -19,6 +19,7 @@ import path from 'path';

import colors from 'colors/safe';
import yaml from 'yaml';
import { tomlArray, tomlBasicString, tomlMultilineBasicString } from '@isomorphic/stringUtils';
import { mkdirIfNeeded } from '@utils/fileUtils';

import { defaultSeedFile, findSeedFile, seedFileContent, seedProject } from '../mcp/test/seed';
Expand DownExpand Up@@ -90,6 +91,64 @@ export class ClaudeGenerator {
 }
}

export class CodexGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
 promptsFolder: prompts ? '.codex/prompts' : undefined,
 });

 const agents = await loadAgentSpecs();

 await fs.promises.mkdir('.codex/agents', { recursive: true });
 for (const agent of agents)
 await writeFile(`.codex/agents/${CodexGenerator.codexName(agent)}.toml`, CodexGenerator.agentSpec(agent), '🤖', 'agent definition');

 initRepoDone();
 }

 // Codex's subagent registry rejects hyphenated identifiers at spawn time with
 // `error=unknown agent_type '<name>'`. Codex's own documentation only shows
 // snake_case names (`pr_explorer`, `reviewer`, `docs_researcher`, ...), see
 // https://developers.openai.com/codex/subagents. Translate the shared agent
 // name into snake_case so the filename and the `name` field stay in sync.
 static codexName(agent: AgentSpec): string {
 return agent.name.replace(/-/g, '_');
 }

 static agentSpec(agent: AgentSpec): string {
 const mcpName = 'playwright-test';
 const enabledTools: string[] = [];
 for (const tool of agent.tools) {
 const [first, second] = tool.split('/');
 if (second && first === mcpName)
 enabledTools.push(second);
 }

 const sandboxMode = agent.tools.includes('edit') ? 'workspace-write' : 'read-only';
 const mcpServer = process.platform === 'win32'
 ? { command: 'cmd', args: ['/c', 'npx', 'playwright', 'run-test-mcp-server'] }
 : { command: 'npx', args: ['playwright', 'run-test-mcp-server'] };

 const examples = agent.examples.length
 ? ` Examples: ${agent.examples.map(example => `<example>${example}</example>`).join('')}`
 : '';

 const lines: string[] = [];
 lines.push(`name = ${tomlBasicString(CodexGenerator.codexName(agent))}`);
 lines.push(`description = ${tomlBasicString(agent.description + examples)}`);
 lines.push(`sandbox_mode = ${tomlBasicString(sandboxMode)}`);
 lines.push(`developer_instructions = ${tomlMultilineBasicString(agent.instructions)}`);
 lines.push('');
 lines.push(`[mcp_servers.${mcpName}]`);
 lines.push(`command = ${tomlBasicString(mcpServer.command)}`);
 lines.push(`args = ${tomlArray(mcpServer.args)}`);
 if (enabledTools.length)
 lines.push(`enabled_tools = ${tomlArray(enabledTools)}`);
 lines.push('');
 return lines.join('\n');
 }
}

export class OpencodeGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {
 await initRepo(fullConfig, projectName, {
Expand DownExpand Up@@ -155,6 +214,7 @@ export class OpencodeGenerator {
 return JSON.stringify(result, null, 2);
 }
}

export class CopilotGenerator {
 static async init(fullConfig: FullConfigInternal, projectName: string, prompts: boolean) {

Expand Down

6 changes: 4 additions & 2 deletions
packages/playwright/src/program.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -25,7 +25,7 @@ import { builtInReporters, config, configLoader } from './common';
import { runTests, clearCache, runTestServerAction } from './cli/testActions';
import { showReport, mergeReports } from './cli/reportActions';
import { TestServerBackend, testServerBackendTools } from './mcp/test/testBackend';
import { ClaudeGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { ClaudeGenerator, CodexGenerator, OpencodeGenerator, VSCodeGenerator, CopilotGenerator } from './agents/generateAgents';
import { packageJSON } from './package';

export { program };
Expand DownExpand Up@@ -155,7 +155,7 @@ function addInitAgentsCommand(program: Command) {
 const command = program.command('init-agents');
 command.description('Initialize repository agents');
 const option = command.createOption('--loop <loop>', 'Agentic loop provider');
 option.choices(['claude', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 option.choices(['claude', 'codex', 'copilot', 'opencode', 'vscode', 'vscode-legacy']);
 command.addOption(option);
 command.option('-c, --config <file>', `Configuration file to find a project to use for seed test`);
 command.option('--project <project>', 'Project to use for seed test');
Expand All@@ -168,6 +168,8 @@ function addInitAgentsCommand(program: Command) {
 await VSCodeGenerator.init(loadedConfig, opts.project);
 } else if (opts.loop === 'claude') {
 await ClaudeGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else if (opts.loop === 'codex') {
 await CodexGenerator.init(loadedConfig, opts.project, opts.prompts);
 } else {
 await CopilotGenerator.init(loadedConfig, opts.project, opts.prompts);
 return;
Expand Down

31 changes: 31 additions & 0 deletions
tests/mcp/init-agents.spec.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -90,3 +90,34 @@ test('claude generates correct mcp config', async ({ }) => {
 expect(mcpJson.mcpServers['playwright-test'].args).toEqual(['playwright', 'run-test-mcp-server']);
 }
});

test('codex generates agent toml files', async ({ }) => {
 const baseDir = await writeFiles({
 'playwright.config.ts': `module.exports = {};`,
 });

 await runInitAgents({ cwd: baseDir, args: ['--loop', 'codex'] });

 const agentsDir = path.join(baseDir, '.codex', 'agents');
 expect(fs.existsSync(agentsDir)).toBe(true);

 const plannerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_planner.toml'), 'utf-8');
 expect(plannerToml).toContain(`name = "playwright_test_planner"`);
 expect(plannerToml).toContain(`[mcp_servers.playwright-test]`);
 expect(plannerToml).toContain(`developer_instructions = """`);
Comment thread
0xharkirat marked this conversation as resolved.

 if (process.platform === 'win32') {
 expect(plannerToml).toContain(`command = "cmd"`);
 expect(plannerToml).toContain(`args = ["/c", "npx", "playwright", "run-test-mcp-server"]`);
 } else {
 expect(plannerToml).toContain(`command = "npx"`);
 expect(plannerToml).toContain(`args = ["playwright", "run-test-mcp-server"]`);
 }

 expect(plannerToml).toContain(`sandbox_mode = "read-only"`);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"planner_save_plan"[^\]]*\]/);
 expect(plannerToml).toMatch(/enabled_tools = \[[^\]]*"browser_navigate"[^\]]*\]/);

 const healerToml = fs.readFileSync(path.join(agentsDir, 'playwright_test_healer.toml'), 'utf-8');
 expect(healerToml).toContain(`sandbox_mode = "workspace-write"`);
 expect(healerToml).toMatch(/enabled_tools = \[[^\]]*"test_debug"[^\]]*\]/);
});
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