seleniumbase-mcp
Enables undetected Chrome automation and JavaScript reverse engineering through SeleniumBase's CDP Mode, allowing MCP clients to control browsers and inspect page scripts.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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ileonzin
Source: Glama
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
browser_openOpen a new CDP-mode Chrome browser under a name you choose.
browser_closeClose a browser and free its resources.
browser_listList the names of all currently open browsers.
navigateNavigate a browser to a URL.
clickClick the first element matching a CSS selector.
type_textType text into the element matching a CSS selector.
get_textGet the visible text of the element matching a CSS selector.
get_htmlGet the full HTML source of the current page.
current_urlGet the current URL of a browser.
eval_jsEvaluate a JavaScript expression in the page and return the result.
wait_for_elementWait until an element matching a CSS selector becomes visible.
screenshotTake a PNG screenshot of the current page and return it as an image.
list_scriptsInventory of all <script> tags (URL/size only, no content).
get_scriptRead a slice of one script by index (int) or URL substring (str).
grep_jsRegex-search every script (inline + same-origin external) for a pattern.
get_fn_sourceReturn the source of a function via .toString().
hook_fnWrap a function so its calls (args + return) get logged. Read with get_hook_log.
get_hook_logReturn recorded calls from hook_fn (last 200). Optionally clear the log.
network_logInstall fetch/XHR interceptors to record requests (URL, method, body, status).
get_networkReturn captured network requests from network_log (last 200). Optionally clear.
Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
20/20 tools missing one or more hints — browser_open (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); browser_close (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); browser_list (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +17 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Destructive tools are labelled
1 tool perform destructive updates without destructiveHint — screenshot deletes at line 243 (os.remove(path))
Add destructiveHint:true to any tool whose handler calls .delete(), .upsert(), .update(), unlink, rm, DELETE, DROP, REPLACE INTO, or any operation that overwrites existing data.
Tool inputs are validated
19/20 tool handlers declare input schemas (95%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
Only 2/20 tool handlers wrap calls in try/catch (10%)
Wrap each tool handler body in try/catch and return a structured error response.
Tests exist
No test files found
Add tests that exercise each declared tool.
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