traces.ribdsp.com
A session replay player an AI agent can interrogate through WebMCP: bisect the timeline, read the DOM at any moment, and file a verifiable bug report.
First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com
Answer 9 · Act 7 · Transact 1 · Score: Not yet scored
Tool inspector
find_element
Locate elements in the recorded page by CSS selector, by visible text, by ARIA role, or any combination of the three, and get back a selector for each that stays valid as the page changes, plus the window of time the element existed. Call this before bisect or measure_layout: those tools take a selector and re-resolve it at other timestamps, so a selector from here is what keeps them pointing at the same element. At most 5 matches come back.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
selector |
string | no | CSS selector to match, e.g. "select[name=province]" or "#checkout button". Combine with text or role to narrow it further. |
text |
string | no | Case-insensitive text the element must contain, e.g. "Pay" or "is required". Only the innermost matching element is returned, not its wrappers. |
role |
string | no | ARIA role, matched against both an explicit role attribute and the implicit role of the tag: "button" also finds <button>, "combobox" finds <select>, "link" finds <a href>. Example: "button". |
timestamp |
number | no | The moment to look at, in ms from the start of the recording. Defaults to where the human's playhead currently is. Pass a value when the element only exists for part of the recording. |
Raw JSON schema
{
"type": "object",
"properties": {
"selector": {
"type": "string",
"description": "CSS selector to match, e.g. \"select[name=province]\" or \"#checkout button\". Combine with text or role to narrow it further."
},
"text": {
"type": "string",
"description": "Case-insensitive text the element must contain, e.g. \"Pay\" or \"is required\". Only the innermost matching element is returned, not its wrappers."
},
"role": {
"type": "string",
"description": "ARIA role, matched against both an explicit role attribute and the implicit role of the tag: \"button\" also finds <button>, \"combobox\" finds <select>, \"link\" finds <a href>. Example: \"button\"."
},
"timestamp": {
"type": "number",
"description": "The moment to look at, in ms from the start of the recording. Defaults to where the human's playhead currently is. Pass a value when the element only exists for part of the recording."
}
},
"additionalProperties": false
}
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