umbra-webmcp.vercel.app
UMBRA DRIFT is a living WebMCP recovery trial where a human changes the light and an agent must safely recover.
First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com
Answer 1 · Act 2 · Transact 0 · Score: Not yet scored
Tool inspector
umbra_measure_projection
Measure signed projection residuals for one to four shadow cutouts under the current human-controlled light. It changes no lamp, rig, or grant; the visible audit ledger records the measurement.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
cutouts |
array | no | Optional unique cutouts to measure. Omit to measure all four. |
Raw JSON schema
{
"type": "object",
"properties": {
"cutouts": {
"type": "array",
"items": {
"type": "string",
"enum": [
"moon",
"key",
"fan",
"thorn"
]
},
"minItems": 1,
"maxItems": 4,
"uniqueItems": true,
"description": "Optional unique cutouts to measure. Omit to measure all four."
}
},
"additionalProperties": false
}
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