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{
  "name": "canvas_describe",
  "kind": "act",
  "impl": "imperative",
  "description": "Report the current state of the canvas: what is drawn, how much, and who drew it. **It also reports anything the user drew themselves since you last called it**, so call it again before you draw and before you answer, for as long as the conversation continues.",
  "inputSchema": {
    "type": "object",
    "properties": {},
    "required": []
  },
  "page": "/canvas/"
}

{
  "name": "canvas_replan",
  "kind": "act",
  "impl": "imperative",
  "description": "Declare how the user's interruption changes what you are making. **Required after canvas_describe reports an interruption — every drawing tool stays refused until you call this.** The new plan must absorb what the user drew, not merely tolerate it. ⚠️ **Write all three fields in ENGLISH**, whatever language the conversation is in — this page shows them on the canvas, and the canvas is in English.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "observed": {
        "type": "string",
        "description": "IN ENGLISH. What the user added, as you see it. e.g. \"two red wheels under the lion\""
      },
      "new_plan": {
        "type": "string",
        "description": "IN ENGLISH. What the whole picture will now become. e.g. \"a lion riding a wheeled car\""
      },
      "abandoning": {
        "type": "string",
        "description": "IN ENGLISH. The part of your earlier plan you are giving up. e.g. \"the four legs\""
      }
    },
    "required": [
      "observed",
      "new_plan",
      "abandoning"
    ]
  },
  "page": "/canvas/"
}

{
  "name": "canvas_batch",
  "kind": "act",
  "impl": "imperative",
  "description": "Draw many shapes in ONE call. shapes is an array; each item is {\"kind\":\"stroke\"|\"circle\"|\"rect\"|\"text\"} plus that shape's own fields, using the same names as the single-shape tools. ⚠️ **This is the normal way to draw** — every call costs the user seconds of waiting, so 30 shapes in one call beats 30 calls. They are laid down over a few seconds, and if the user draws meanwhile the rest is dropped — so send one part at a time (the mane, then the face), not a whole picture at once.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "shapes": {
        "type": "array",
        "description": "Up to 80 shapes, drawn in order. Each needs \"kind\" plus that kind's fields",
        "items": {
          "type": "object"
        }
      }
    },
    "required": [
      "shapes"
    ]
  },
  "page": "/canvas/"
}

{
  "name": "canvas_stroke",
  "kind": "act",
  "impl": "imperative",
  "description": "Draw ONE polyline. ⚠️ Drawing more than one? Use canvas_batch and send them together. points is [[x,y],[x,y],...] where x and y are relative coordinates in 0-1. ⚠️ **Pass every point in one call. Do not call once per segment.** For a curve, list many points and send them together. Example: draw 6 whiskers in one call, not six. Each call costs a few seconds, so the number of calls is the wait the user sees.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "points": {
        "type": "array",
        "description": "[[x,y],...] every value in 0-1",
        "items": {
          "type": "array",
          "items": {
            "type": "number"
          }
        }
      },
      "color": {
        "type": "string",
        "description": "CSS colour. Defaults to the current colour"
      },
      "width": {
        "type": "number",
        "description": "Line width in px. Optional"
      }
    },
    "required": [
      "points"
    ]
  },
  "page": "/canvas/"
}

{
  "name": "canvas_circle",
  "kind": "act",
  "impl": "imperative",
  "description": "Draw ONE circle. cx,cy are the centre in relative coordinates (0-1); r is the radius as a fraction of the width. ⚠️ Drawing several? Use canvas_batch instead.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "cx": {
        "type": "number",
        "description": "centre x, 0-1"
      },
      "cy": {
        "type": "number",
        "description": "centre y, 0-1"
      },
      "r": {
        "type": "number",
        "description": "radius, 0-1"
      },
      "color": {
        "type": "string",
        "description": "CSS colour"
      },
      "width": {
        "type": "number",
        "description": "line width"
      },
      "fill": {
        "type": "boolean",
        "description": "fill it in"
      }
    },
    "required": [
      "cx",
      "cy",
      "r"
    ]
  },
  "page": "/canvas/"
}

{
  "name": "canvas_rect",
  "kind": "act",
  "impl": "imperative",
  "description": "Draw ONE rectangle. x,y are the top-left corner in relative coordinates; w,h are width and height as fractions. ⚠️ Drawing several? Use canvas_batch instead.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "x": {
        "type": "number",
        "description": "top-left x, 0-1"
      },
      "y": {
        "type": "number",
        "description": "top-left y, 0-1"
      },
      "w": {
        "type": "number",
        "description": "width, 0-1"
      },
      "h": {
        "type": "number",
        "description": "height, 0-1"
      },
      "color": {
        "type": "string",
        "description": "CSS colour"
      },
      "width": {
        "type": "number",
        "description": "line width"
      },
      "fill": {
        "type": "boolean",
        "description": "fill it in"
      }
    },
    "required": [
      "x",
      "y",
      "w",
      "h"
    ]
  },
  "page": "/canvas/"
}

{
  "name": "canvas_text",
  "kind": "act",
  "impl": "imperative",
  "description": "Place text. x,y are the left edge and vertical middle of the text, in relative coordinates. size is the height as a fraction (0.06 is a normal size). Write the text in English unless the user asked otherwise. Several at once? Use canvas_batch.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "x": {
        "type": "number",
        "description": "x, 0-1"
      },
      "y": {
        "type": "number",
        "description": "y, 0-1"
      },
      "text": {
        "type": "string",
        "description": "the text to place"
      },
      "size": {
        "type": "number",
        "description": "text height, 0-1"
      },
      "color": {
        "type": "string",
        "description": "CSS colour"
      }
    },
    "required": [
      "x",
      "y",
      "text"
    ]
  },
  "page": "/canvas/"
}

{
  "name": "canvas_undo",
  "kind": "act",
  "impl": "imperative",
  "description": "Undo the most recently drawn item. It may be something the user drew, so do not call it repeatedly without saying so.",
  "inputSchema": {
    "type": "object",
    "properties": {},
    "required": []
  },
  "page": "/canvas/"
}

{
  "name": "canvas_clear",
  "kind": "act",
  "impl": "imperative",
  "description": "Erase the whole canvas. ⚠️ This also erases what the user drew. Only call it when the user has clearly asked for it.",
  "inputSchema": {
    "type": "object",
    "properties": {},
    "required": []
  },
  "page": "/canvas/"
}