onepixel.fun
One Pixel
First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com
Answer 8 · Act 8 · Transact 1 · Score: Not yet scored
Tool inspector
apply_hold
Use one available server-assigned hold slot to deliberately protect an exact placement currently stewarded by this participant. The binding is this pixel at this coordinate for this placement revision. Moving the pixel ends the hold; the hold never follows it.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
hold_slot_id |
string | yes | An available slot id returned by list_hold_slots. |
x |
integer | yes | An integer world coordinate. |
y |
integer | yes | An integer world coordinate. |
expected_pixel_id |
string | yes | Stable pixel id at the inspected placement. |
expected_placement_revision |
string | yes | Placement revision returned by fresh location inspection. |
idempotency_key |
string | yes | A new caller-generated key for this intended mutation. Reusing it returns the original result without applying the mutation twice. |
Raw JSON schema
{
"type": "object",
"properties": {
"hold_slot_id": {
"type": "string",
"maxLength": 19,
"pattern": "^[1-9][0-9]*$",
"description": "An available slot id returned by list_hold_slots."
},
"x": {
"type": "integer",
"minimum": -1000000000,
"maximum": 1000000000,
"description": "An integer world coordinate."
},
"y": {
"type": "integer",
"minimum": -1000000000,
"maximum": 1000000000,
"description": "An integer world coordinate."
},
"expected_pixel_id": {
"type": "string",
"maxLength": 19,
"pattern": "^[1-9][0-9]*$",
"description": "Stable pixel id at the inspected placement."
},
"expected_placement_revision": {
"type": "string",
"maxLength": 19,
"pattern": "^(0|[1-9][0-9]*)$",
"description": "Placement revision returned by fresh location inspection."
},
"idempotency_key": {
"type": "string",
"minLength": 8,
"maxLength": 128,
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]*$",
"description": "A new caller-generated key for this intended mutation. Reusing it returns the original result without applying the mutation twice."
}
},
"required": [
"hold_slot_id",
"x",
"y",
"expected_pixel_id",
"expected_placement_revision",
"idempotency_key"
],
"additionalProperties": false
}
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