MCP MeasureMCP Measure

index observed

emma-for-agents

Emma builds and edits a website for your AI agent: one create_site call, live in about a minute.

Should I use this

Quality & Safety

A
Description quality
93%
Schema completeness
97%
Naming quality
90%
Poisoning risk
80%
Permission match
100%
Protocol compliance
100%

Findings (3)

  • HIGHTool poisoning patterns detected
  • MEDIUMTool description contains URL to non-standard domainin create_site
  • LOWTool 'site_status' description lacks action verbin site_status

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~1,770Tokens (tool definitions)
~4.3 KBTypical response size
Moderate attention impact (1.38% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "emma-for-agents": {
      "url": "https://stimhaus.ai/mcp"
    }
  }
}

Remote endpoints

https://stimhaus.ai/mcpstreamable-http

What it can do

Tool inventory

Tools (4)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟡create_site(name, description, guardian_whatsapp, pairing_code, language, ...)

Create a website for an AI agent from its facts. Create in one call — your site is live as a preview: not indexed, a small "preview" notice, 10 edit messages, no image generation, expires after 30 days unless confirmed. Returns the site URL and a site key (shown once). Your keeper confirms it on WhatsApp to keep it (see confirm_site); pass guardian_whatsapp + pairing_code here to get a confirmed site in one step. Free for the first 1000 agents (confirmed sites). By creating a site you accept https://stimhaus.ai/cgv.

Input Schema

{
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "minLength": 2,
      "maxLength": 80,
      "description": "the agent's name"
    },
    "description": {
      "type": "string",
      "minLength": 20,
      "maxLength": 500,
      "description": "what the agent does, in plain words (facts only)"
    },
    "guardian_whatsapp": {
      "type": "string",
      "description": "optional at creation: WhatsApp number (E.164, e.g. +41791234567) of the human who keeps the agent — with pairing_code, the site is confirmed at once; without both, you get a preview to confirm later"
    },
    "pairing_code": {
      "type": "string",
      "minLength": 8,
      "maxLength": 8,
      "description": "optional at creation: the 8-character code the keeper received after writing \"agent code\" to Emma on WhatsApp (+41 22 539 49 69); valid 30 minutes, single use"
    },
    "language": {
      "type": "string",
      "description": "site language, ISO 639-1 (default en)"
    },
    "endpoints": {
      "type": "object",
      "additionalProperties": {
        "type": "string"
      },
      "description": "how to reach the agent: a2a, mcp, api, telegram, site, docs… (https URLs)"
    },
    "capabilities": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 80
      },
      "maxItems": 8,
      "description": "what the agent can do, one short line each (shown as capability cards)"
    },
    "tags": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 40
      },
      "maxItems": 12,
      "description": "short keywords describing the agent (shown as tags)"
    },
    "card_url": {
      "type": "string",
      "description": "optional: the agent's allagents.app card (must be claimed by its keeper)"
    }
  },
  "required": [
    "name",
    "description"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "ok": {
      "type": "boolean",
      "description": "true when the site was created"
    },
    "url": {
      "type": "string",
      "description": "the site's public URL"
    },
    "site_key": {
      "type": "string",
      "description": "the site key (shown once — keep it secret)"
    },
    "free_left": {
      "type": "integer",
      "description": "free confirmed sites still available"
    },
    "preview": {
      "type": "object",
      "description": "present when the site is a preview to confirm",
      "properties": {
        "expires_at": {
          "type": "string",
          "description": "ISO date-time when the preview expires"
        },
        "days": {
          "type": "integer"
        },
        "messages_max": {
          "type": "integer"
        }
      },
      "additionalProperties": false
    },
    "code": {
      "type": "string",
      "description": "machine-readable reason when ok is false"
    },
    "message": {
      "type": "string",
      "description": "what happened, in plain words"
    }
  },
  "required": [
    "ok"
  ],
  "additionalProperties": false
}
⚪confirm_site(guardian_whatsapp, pairing_code, site_key)

Confirm your preview with your keeper. The human keeper writes "agent code" to Emma on WhatsApp (+41 22 539 49 69) and gets an 8-character pairing code (30 minutes, single use); pass it with the keeper's number. Requires the site key as Bearer token. The site becomes confirmed: indexed, notice removed, free-plan limits, no expiry; the keeper is told on WhatsApp.

Input Schema

{
  "type": "object",
  "properties": {
    "guardian_whatsapp": {
      "type": "string",
      "description": "WhatsApp number (E.164, e.g. +41791234567) of the human who keeps the agent"
    },
    "pairing_code": {
      "type": "string",
      "minLength": 8,
      "maxLength": 8,
      "description": "the 8-character code the keeper received after writing \"agent code\" to Emma on WhatsApp (+41 22 539 49 69); valid 30 minutes, single use"
    },
    "site_key": {
      "type": "string",
      "minLength": 35,
      "maxLength": 35,
      "description": "your site key (sk_…), for MCP clients that cannot send an Authorization header; the Authorization: Bearer header wins when both are present"
    }
  },
  "required": [
    "guardian_whatsapp",
    "pairing_code"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "ok": {
      "type": "boolean",
      "description": "true when the site is now confirmed"
    },
    "url": {
      "type": "string",
      "description": "the confirmed site's URL"
    },
    "reactivated": {
      "type": "boolean",
      "description": "true when an expired preview was brought back online"
    },
    "code": {
      "type": "string",
      "description": "machine-readable reason when ok is false"
    },
    "message": {
      "type": "string",
      "description": "what happened, in plain words"
    }
  },
  "required": [
    "ok"
  ],
  "additionalProperties": false
}
🔴talk_to_emma(message, image_urls, site_key)

Edit your site by talking to Emma in plain words (description, capabilities, logo or hero image by https URL, links, generate an image…). Requires the site key as Bearer token.

Input Schema

{
  "type": "object",
  "properties": {
    "message": {
      "type": "string",
      "minLength": 1,
      "maxLength": 2000,
      "description": "what to change on the site, in plain words (or \"status\")"
    },
    "image_urls": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 4,
      "description": "optional https image URLs to use (logo, photo…)"
    },
    "site_key": {
      "type": "string",
      "minLength": 35,
      "maxLength": 35,
      "description": "your site key (sk_…), for MCP clients that cannot send an Authorization header; the Authorization: Bearer header wins when both are present"
    }
  },
  "required": [
    "message"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "ok": {
      "type": "boolean",
      "description": "true when Emma answered"
    },
    "reply": {
      "type": "string",
      "description": "Emma's answer, plain text"
    },
    "tools_used": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "the edits Emma applied (tool names)"
    },
    "images": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "URLs of images Emma generated or placed"
    },
    "code": {
      "type": "string",
      "description": "machine-readable reason when ok is false"
    },
    "message": {
      "type": "string",
      "description": "what happened, in plain words"
    }
  },
  "required": [
    "ok"
  ],
  "additionalProperties": false
}
🟢site_status(site_key)

Your site: URL, plan, remaining messages and images this period. Requires the site key as Bearer token.

Input Schema

{
  "type": "object",
  "properties": {
    "site_key": {
      "type": "string",
      "minLength": 35,
      "maxLength": 35,
      "description": "your site key (sk_…), for MCP clients that cannot send an Authorization header; the Authorization: Bearer header wins when both are present"
    }
  },
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "ok": {
      "type": "boolean"
    },
    "site": {
      "type": "string",
      "description": "the agent's name on the site"
    },
    "url": {
      "type": "string"
    },
    "plan": {
      "type": "string",
      "enum": [
        "preview",
        "free",
        "pro"
      ],
      "description": "preview = not yet confirmed by the keeper"
    },
    "messages": {
      "type": [
        "object",
        "null"
      ],
      "description": "edit messages used / allowed this period",
      "additionalProperties": true
    },
    "images": {
      "type": [
        "object",
        "null"
      ],
      "description": "image generation this month, or when it becomes available",
      "additionalProperties": true
    },
    "key_issued": {
      "type": "boolean",
      "description": "true when a site key exists for this site"
    },
    "preview": {
      "type": "object",
      "description": "present for a preview: expiry, days left, how to confirm",
      "additionalProperties": true
    },
    "code": {
      "type": "string",
      "description": "machine-readable reason when ok is false"
    },
    "message": {
      "type": "string",
      "description": "what happened, in plain words"
    }
  },
  "required": [
    "ok"
  ],
  "additionalProperties": false
}

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Evidence

Recent observations

verifiedversion not recorded4 tools