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chore: render nicer config (#1339)

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Pavel Feldman
2026-01-25 11:06:30 -08:00
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parent 5b497bcca8
commit 4b62f68979
2 changed files with 72 additions and 127 deletions
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README.md
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@@ -324,127 +324,50 @@ Playwright MCP server supports following arguments. They can be provided in the
<!--- Options generated by update-readme.js -->
```
> npx @playwright/mcp@latest --help
--allowed-hosts <hosts...> comma-separated list of hosts this
server is allowed to serve from.
Defaults to the host the server is bound
to. Pass '*' to disable the host check.
--allowed-origins <origins> semicolon-separated list of TRUSTED
origins to allow the browser to request.
Default is to allow all.
Important: *does not* serve as a
security boundary and *does not* affect
redirects.
--allow-unrestricted-file-access allow access to files outside of the
workspace roots. Also allows
unrestricted access to file:// URLs. By
default access to file system is
restricted to workspace root directories
(or cwd if no roots are configured)
only, and navigation to file:// URLs is
blocked.
--blocked-origins <origins> semicolon-separated list of origins to
block the browser from requesting.
Blocklist is evaluated before allowlist.
If used without the allowlist, requests
not matching the blocklist are still
allowed.
Important: *does not* serve as a
security boundary and *does not* affect
redirects.
--block-service-workers block service workers
--browser <browser> browser or chrome channel to use,
possible values: chrome, firefox,
webkit, msedge.
--caps <caps> comma-separated list of additional
capabilities to enable, possible values:
vision, pdf.
--cdp-endpoint <endpoint> CDP endpoint to connect to.
--cdp-header <headers...> CDP headers to send with the connect
request, multiple can be specified.
--codegen <lang> specify the language to use for code
generation, possible values:
"typescript", "none". Default is
"typescript".
--config <path> path to the configuration file.
--console-level <level> level of console messages to return:
"error", "warning", "info", "debug".
Each level includes the messages of more
severe levels.
--device <device> device to emulate, for example: "iPhone
15"
--executable-path <path> path to the browser executable.
--extension Connect to a running browser instance
(Edge/Chrome only). Requires the
"Playwright MCP Bridge" browser
extension to be installed.
--grant-permissions <permissions...> List of permissions to grant to the
browser context, for example
"geolocation", "clipboard-read",
"clipboard-write".
--headless run browser in headless mode, headed by
default
--host <host> host to bind server to. Default is
localhost. Use 0.0.0.0 to bind to all
interfaces.
--ignore-https-errors ignore https errors
--init-page <path...> path to TypeScript file to evaluate on
Playwright page object
--init-script <path...> path to JavaScript file to add as an
initialization script. The script will
be evaluated in every page before any of
the page's scripts. Can be specified
multiple times.
--isolated keep the browser profile in memory, do
not save it to disk.
--image-responses <mode> whether to send image responses to the
client. Can be "allow" or "omit",
Defaults to "allow".
--no-sandbox disable the sandbox for all process
types that are normally sandboxed.
--output-dir <path> path to the directory for output files.
--output-mode <mode> whether to save snapshots, console
messages, network logs to a file or to
the standard output. Can be "file" or
"stdout". Default is "stdout".
--port <port> port to listen on for SSE transport.
--proxy-bypass <bypass> comma-separated domains to bypass proxy,
for example
".com,chromium.org,.domain.com"
--proxy-server <proxy> specify proxy server, for example
"http://myproxy:3128" or
"socks5://myproxy:8080"
--save-session Whether to save the Playwright MCP
session into the output directory.
--save-trace Whether to save the Playwright Trace of
the session into the output directory.
--save-video <size> Whether to save the video of the session
into the output directory. For example
"--save-video=800x600"
--secrets <path> path to a file containing secrets in the
dotenv format
--shared-browser-context reuse the same browser context between
all connected HTTP clients.
--snapshot-mode <mode> when taking snapshots for responses,
specifies the mode to use. Can be
"incremental", "full", or "none".
Default is incremental.
--storage-state <path> path to the storage state file for
isolated sessions.
--test-id-attribute <attribute> specify the attribute to use for test
ids, defaults to "data-testid"
--timeout-action <timeout> specify action timeout in milliseconds,
defaults to 5000ms
--timeout-navigation <timeout> specify navigation timeout in
milliseconds, defaults to 60000ms
--user-agent <ua string> specify user agent string
--user-data-dir <path> path to the user data directory. If not
specified, a temporary directory will be
created.
--viewport-size <size> specify browser viewport size in pixels,
for example "1280x720"
```
| Option | Description |
|--------|-------------|
| --allowed-hosts <hosts...> | comma-separated list of hosts this server is allowed to serve from. Defaults to the host the server is bound to. Pass '*' to disable the host check.<br>*env* `PLAYWRIGHT_MCP_ALLOWED_HOSTS` |
| --allowed-origins <origins> | semicolon-separated list of TRUSTED origins to allow the browser to request. Default is to allow all. Important: *does not* serve as a security boundary and *does not* affect redirects.<br>*env* `PLAYWRIGHT_MCP_ALLOWED_ORIGINS` |
| --allow-unrestricted-file-access | allow access to files outside of the workspace roots. Also allows unrestricted access to file:// URLs. By default access to file system is restricted to workspace root directories (or cwd if no roots are configured) only, and navigation to file:// URLs is blocked.<br>*env* `PLAYWRIGHT_MCP_ALLOW_UNRESTRICTED_FILE_ACCESS` |
| --blocked-origins <origins> | semicolon-separated list of origins to block the browser from requesting. Blocklist is evaluated before allowlist. If used without the allowlist, requests not matching the blocklist are still allowed. Important: *does not* serve as a security boundary and *does not* affect redirects.<br>*env* `PLAYWRIGHT_MCP_BLOCKED_ORIGINS` |
| --block-service-workers | block service workers<br>*env* `PLAYWRIGHT_MCP_BLOCK_SERVICE_WORKERS` |
| --browser <browser> | browser or chrome channel to use, possible values: chrome, firefox, webkit, msedge.<br>*env* `PLAYWRIGHT_MCP_BROWSER` |
| --caps <caps> | comma-separated list of additional capabilities to enable, possible values: vision, pdf.<br>*env* `PLAYWRIGHT_MCP_CAPS` |
| --cdp-endpoint <endpoint> | CDP endpoint to connect to.<br>*env* `PLAYWRIGHT_MCP_CDP_ENDPOINT` |
| --cdp-header <headers...> | CDP headers to send with the connect request, multiple can be specified.<br>*env* `PLAYWRIGHT_MCP_CDP_HEADER` |
| --codegen <lang> | specify the language to use for code generation, possible values: "typescript", "none". Default is "typescript".<br>*env* `PLAYWRIGHT_MCP_CODEGEN` |
| --config <path> | path to the configuration file.<br>*env* `PLAYWRIGHT_MCP_CONFIG` |
| --console-level <level> | level of console messages to return: "error", "warning", "info", "debug". Each level includes the messages of more severe levels.<br>*env* `PLAYWRIGHT_MCP_CONSOLE_LEVEL` |
| --device <device> | device to emulate, for example: "iPhone 15"<br>*env* `PLAYWRIGHT_MCP_DEVICE` |
| --executable-path <path> | path to the browser executable.<br>*env* `PLAYWRIGHT_MCP_EXECUTABLE_PATH` |
| --extension | Connect to a running browser instance (Edge/Chrome only). Requires the "Playwright MCP Bridge" browser extension to be installed.<br>*env* `PLAYWRIGHT_MCP_EXTENSION` |
| --grant-permissions <permissions...> | List of permissions to grant to the browser context, for example "geolocation", "clipboard-read", "clipboard-write".<br>*env* `PLAYWRIGHT_MCP_GRANT_PERMISSIONS` |
| --headless | run browser in headless mode, headed by default<br>*env* `PLAYWRIGHT_MCP_HEADLESS` |
| --host <host> | host to bind server to. Default is localhost. Use 0.0.0.0 to bind to all interfaces.<br>*env* `PLAYWRIGHT_MCP_HOST` |
| --ignore-https-errors | ignore https errors<br>*env* `PLAYWRIGHT_MCP_IGNORE_HTTPS_ERRORS` |
| --init-page <path...> | path to TypeScript file to evaluate on Playwright page object<br>*env* `PLAYWRIGHT_MCP_INIT_PAGE` |
| --init-script <path...> | path to JavaScript file to add as an initialization script. The script will be evaluated in every page before any of the page's scripts. Can be specified multiple times.<br>*env* `PLAYWRIGHT_MCP_INIT_SCRIPT` |
| --isolated | keep the browser profile in memory, do not save it to disk.<br>*env* `PLAYWRIGHT_MCP_ISOLATED` |
| --image-responses <mode> | whether to send image responses to the client. Can be "allow" or "omit", Defaults to "allow".<br>*env* `PLAYWRIGHT_MCP_IMAGE_RESPONSES` |
| --no-sandbox | disable the sandbox for all process types that are normally sandboxed.<br>*env* `PLAYWRIGHT_MCP_NO_SANDBOX` |
| --output-dir <path> | path to the directory for output files.<br>*env* `PLAYWRIGHT_MCP_OUTPUT_DIR` |
| --output-mode <mode> | whether to save snapshots, console messages, network logs to a file or to the standard output. Can be "file" or "stdout". Default is "stdout".<br>*env* `PLAYWRIGHT_MCP_OUTPUT_MODE` |
| --port <port> | port to listen on for SSE transport.<br>*env* `PLAYWRIGHT_MCP_PORT` |
| --proxy-bypass <bypass> | comma-separated domains to bypass proxy, for example ".com,chromium.org,.domain.com"<br>*env* `PLAYWRIGHT_MCP_PROXY_BYPASS` |
| --proxy-server <proxy> | specify proxy server, for example "http://myproxy:3128" or "socks5://myproxy:8080"<br>*env* `PLAYWRIGHT_MCP_PROXY_SERVER` |
| --save-session | Whether to save the Playwright MCP session into the output directory.<br>*env* `PLAYWRIGHT_MCP_SAVE_SESSION` |
| --save-trace | Whether to save the Playwright Trace of the session into the output directory.<br>*env* `PLAYWRIGHT_MCP_SAVE_TRACE` |
| --save-video <size> | Whether to save the video of the session into the output directory. For example "--save-video=800x600"<br>*env* `PLAYWRIGHT_MCP_SAVE_VIDEO` |
| --secrets <path> | path to a file containing secrets in the dotenv format<br>*env* `PLAYWRIGHT_MCP_SECRETS` |
| --shared-browser-context | reuse the same browser context between all connected HTTP clients.<br>*env* `PLAYWRIGHT_MCP_SHARED_BROWSER_CONTEXT` |
| --snapshot-mode <mode> | when taking snapshots for responses, specifies the mode to use. Can be "incremental", "full", or "none". Default is incremental.<br>*env* `PLAYWRIGHT_MCP_SNAPSHOT_MODE` |
| --storage-state <path> | path to the storage state file for isolated sessions.<br>*env* `PLAYWRIGHT_MCP_STORAGE_STATE` |
| --test-id-attribute <attribute> | specify the attribute to use for test ids, defaults to "data-testid"<br>*env* `PLAYWRIGHT_MCP_TEST_ID_ATTRIBUTE` |
| --timeout-action <timeout> | specify action timeout in milliseconds, defaults to 5000ms<br>*env* `PLAYWRIGHT_MCP_TIMEOUT_ACTION` |
| --timeout-navigation <timeout> | specify navigation timeout in milliseconds, defaults to 60000ms<br>*env* `PLAYWRIGHT_MCP_TIMEOUT_NAVIGATION` |
| --user-agent <ua string> | specify user agent string<br>*env* `PLAYWRIGHT_MCP_USER_AGENT` |
| --user-data-dir <path> | path to the user data directory. If not specified, a temporary directory will be created.<br>*env* `PLAYWRIGHT_MCP_USER_DATA_DIR` |
| --viewport-size <size> | specify browser viewport size in pixels, for example "1280x720"<br>*env* `PLAYWRIGHT_MCP_VIEWPORT_SIZE` |
<!--- End of options generated section -->

34
packages/playwright-mcp/update-readme.js
View File

@@ -136,14 +136,36 @@ async function updateOptions(content) {
lines.splice(0, firstLine + 1);
const lastLine = lines.findIndex(line => line.includes('--help'));
lines.splice(lastLine);
/**
* @type {{ name: string, value: string }[]}
*/
const options = [];
for (let line of lines) {
if (line.startsWith(' --')) {
const l = line.substring(' --'.length);
const gapIndex = l.indexOf(' ');
const name = l.substring(0, gapIndex).trim();
const value = l.substring(gapIndex).trim();
options.push({ name, value });
} else {
const value = line.trim();
options[options.length - 1].value += ' ' + value;
}
}
const table = [];
table.push(`| Option | Description |`);
table.push(`|--------|-------------|`);
for (const option of options) {
const prefix = option.name.split(' ')[0];
const envName = `PLAYWRIGHT_MCP_` + prefix.toUpperCase().replace(/-/g, '_');
table.push(`| --${option.name} | ${option.value}<br>*env* \`${envName}\` |`);
}
const startMarker = `<!--- Options generated by ${path.basename(__filename)} -->`;
const endMarker = `<!--- End of options generated section -->`;
return updateSection(content, startMarker, endMarker, [
'```',
'> npx @playwright/mcp@latest --help',
...lines,
'```',
]);
return updateSection(content, startMarker, endMarker, table);
}
/**