# Generated by API Evangelist (build-phrasing.py). Our phrasing, not observed demand. overlay: 1.0.0 info: title: API Evangelist conversational phrasing for Scope3 MCP API version: 1.0.0 extends: openapi/scope3-mcp-api-openapi.yml actions: - target: $.info update: x-apievangelist-phrasing: method: generated generated: '2026-10-01' generator: build-phrasing.py label: Generated by API Evangelist operations: 3 - target: $.paths['/'].post update: x-apievangelist-phrasing: intent: Start an MCP session with the buyer API effect: write questions: - What has to happen before an agent can use the Scope3 buyer MCP tools? - Which protocol version does the MCP initialize handshake expect? - Do I need to generate my own session id when opening an MCP session? instructions: - text: Open a new MCP session using session id {session_id}. slots: session_id: header.mcp-session-id - text: Initialize the buyer MCP connection with client info {params}. slots: params: requestBody.params method: generated generated: '2026-10-01' - target: $.paths['/api-call'].post update: x-apievangelist-phrasing: intent: Call a buyer REST endpoint through MCP effect: write questions: - Can an agent reach any buyer REST endpoint through the MCP api_call tool? - How do I pass a path, query parameters and a body when calling the REST API over MCP? instructions: - text: Through MCP session {session_id}, call the buyer REST endpoint described in {params}. slots: session_id: header.mcp-session-id params: requestBody.params - text: Use the MCP api_call tool to list my advertisers in session {session_id}. slots: session_id: header.mcp-session-id method: generated generated: '2026-10-01' - target: $.paths['/ask-about-capability'].post update: x-apievangelist-phrasing: intent: Ask a plain-language question about API features effect: read questions: - Can I ask the buyer API in plain English what it is able to do? - Is there a way for an agent to learn the API's features without reading the docs? instructions: - text: 'Ask the capability tool in session {session_id}: {params}.' slots: session_id: header.mcp-session-id params: requestBody.params - text: Find out from the MCP capability helper what I can configure on a campaign, using session {session_id}. slots: session_id: header.mcp-session-id method: generated generated: '2026-10-01'