copresence-canvas.vercel.app
An infinite canvas where a human and an AI agent edit the same live in-browser scene at the same time, over WebMCP.
First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com
Answer 5 · Act 6 · Transact 0 · Score: Not yet scored
Tool inspector
add_notes
Write new sticky notes onto the canvas — missing evidence, open questions, next steps. Notes appear in the agent colour so the human can see exactly what you contributed. This call is NOT idempotent, and it is paced by an animation, so it can take tens of seconds in a background tab. Never send it again because it seems slow — it has not been dropped. If you do repeat yourself, text you wrote in the last minute is refused rather than written twice, and comes back under `alreadyPresent`.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
texts |
array | yes | One string per note. Keep each under ~80 characters. |
near |
string | no | Optional note id to place them beside. |
Raw JSON schema
{
"type": "object",
"properties": {
"texts": {
"type": "array",
"items": {
"type": "string"
},
"description": "One string per note. Keep each under ~80 characters."
},
"near": {
"type": "string",
"description": "Optional note id to place them beside."
}
},
"required": [
"texts"
],
"additionalProperties": false
}
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