agent-capability-declaration-sdk/spec/schema.json at main · cmaliwal/agent-capability-declaration-sdk · GitHub

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{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://github.com/hashtrust/acds/spec/schema.json",
  "title": "Agent Capability Declaration",
  "description": "Schema for declaring AI agent capabilities in a machine-readable format.",
  "type": "object",
  "required": ["agent_id", "version", "capabilities"],
  "additionalProperties": false,
  "properties": {
    "agent_id": {
      "type": "string",
      "minLength": 1,
      "description": "Unique identifier for the agent."
    },
    "version": {
      "type": "string",
      "pattern": "^(0|[1-9]\\d*)\\.(0|[1-9]\\d*)\\.(0|[1-9]\\d*)(?:-((?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\\.(?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\\+([0-9a-zA-Z-]+(?:\\.[0-9a-zA-Z-]+)*))?$",
      "description": "Semantic version of the capability manifest."
    },
    "capabilities": {
      "type": "array",
      "minItems": 1,
      "items": {
        "$ref": "#/definitions/capability"
      },
      "description": "List of capabilities the agent declares."
    }
  },
  "definitions": {
    "capability": {
      "type": "object",
      "required": [
        "name",
        "description",
        "inputs",
        "outputs",
        "pricing",
        "latency_class",
        "requires_payment"
      ],
      "additionalProperties": false,
      "properties": {
        "name": {
          "type": "string",
          "pattern": "^[a-z][a-z0-9]*(_[a-z0-9]+)*$",
          "description": "Snake_case name of the capability."
        },
        "description": {
          "type": "string",
          "minLength": 1,
          "description": "Human-readable description of what this capability does."
        },
        "inputs": {
          "type": "object",
          "additionalProperties": {
            "$ref": "#/definitions/primitive_type"
          },
          "description": "Input parameters as key-type pairs."
        },
        "outputs": {
          "type": "object",
          "additionalProperties": {
            "$ref": "#/definitions/primitive_type"
          },
          "description": "Output values as key-type pairs."
        },
        "pricing": {
          "$ref": "#/definitions/pricing",
          "description": "Pricing information for this capability."
        },
        "latency_class": {
          "type": "string",
          "enum": ["fast", "medium", "slow"],
          "description": "Expected latency class."
        },
        "requires_payment": {
          "type": "boolean",
          "description": "Whether this capability requires payment before execution."
        }
      }
    },
    "primitive_type": {
      "type": "string",
      "enum": ["string", "number", "boolean", "object", "array"]
    },
    "pricing": {
      "type": "object",
      "required": ["type", "cost", "currency"],
      "additionalProperties": false,
      "properties": {
        "type": {
          "type": "string",
          "description": "Pricing model type (e.g. per_call, per_token, flat)."
        },
        "cost": {
          "type": "string",
          "pattern": "^[0-9]+(\\.[0-9]+)?$",
          "description": "Cost as a decimal string."
        },
        "currency": {
          "type": "string",
          "minLength": 1,
          "description": "Currency code (e.g. USD, EUR)."
        }
      }
    }
  }
}