> ## Documentation Index > Fetch the complete documentation index at: https://docs.sagescreen.dev/llms.txt > Use this file to discover all available pages before exploring further. # Ghostwrite a LinkedIn or Reddit comment/DM in the operator's voice. > Ghostwrite a LinkedIn or Reddit comment/DM in the operator's voice. `message` must be a JSON string with this shape: { "persona": { "name": "Ryan Meinzer", "role": "Co-founder", "company": "SageScreen", "landingUrl": "https://sagescreen.io", "demoCalendarUrl": "https://cal.com/sagescreen/demo", "introCalendarUrl": "https://cal.com/sagescreen/intro" }, "voice": "ryan", "channel": "linkedin-comment", "context": { "postText": "Full text of the LinkedIn post or Reddit thread being responded to.", "authorName": "Jane Smith", "authorTitle": "VP of Talent at Acme Corp", "subreddit": "recruiting", "dmText": "Text of the DM being replied to (for dm-reply channels).", "crmNotes": ["Most recent CRM note about this person", "Older note"] }, "prompt": { "tone": "curious", "slant": "peer", "cta": { "style": "none", "landingUrl": "" }, "calendar": { "type": "demo", "url": "https://cal.com/sagescreen/demo" }, "extraInstructions": "Keep it under 20 words.", "withContext": false } } voice vs persona: voice ("ryan", "theo", "kayla", "nicole") controls HOW it sounds — word choice, rhythm, sentence style. persona is WHO is signing it — the name and title shown to the reader. They are independent: voice="ryan" + persona.name="Ryan Meinzer" means ghostwrite in Ryan's style as Ryan. voice="theo" + persona.name="Ryan Meinzer" means write in Theo's style but sign it as Ryan. channel values: "linkedin-comment" | "linkedin-dm-reply" | "linkedin-dm-init" | "reddit-comment" | "reddit-dm-reply" | "reddit-dm-init" cta.style values: "none" (no pitch) | "soft" | "direct" cta.landingUrl: product landing page URL to weave in when cta.style is not "none". calendar.type values: "none" | "demo" | "intro" calendar.url: the resolved booking URL for the selected calendar type. context fields are all optional — include what you have. Returns the paste-ready message text. No preamble, no quotes, no markdown. ## OpenAPI ````yaml /openapi/private/specs/mcp/sagescreen.yml post /tools/comment_agent openapi: 3.1.0 info: title: SageScreen — MCP Tool Catalog description: >- Agent-callable tools exposed by the SageScreen MCP server at `https://mcp.sagescreen.net`. These are the same tools served over the Model Context Protocol; this reference documents their **REST** surface (`POST /tools/{name}`, body = the tool's arguments), which is what the playground below invokes. The live, machine-readable catalog is `GET /tools/list`. **This page is generated deterministically** from the server's tool registry (`apps/docs/scripts/generate_mcp_spec.py`), not hand-written and not AI-generated — it cannot drift from the shipped tools. All calls authenticate with the `X-Service-Token` header (or `?token=`). version: 1.0.0 servers: - url: https://mcp.sagescreen.net description: Production MCP server security: - serviceToken: [] - tokenQuery: [] tags: - name: Agents - name: Contact Push - name: Image Generation - name: Other - name: Productlane - name: Reply.io - name: Sequences - name: Spaces - name: WordPress paths: /tools/comment_agent: post: tags: - Agents summary: Ghostwrite a LinkedIn or Reddit comment/DM in the operator's voice. description: |- Ghostwrite a LinkedIn or Reddit comment/DM in the operator's voice. `message` must be a JSON string with this shape: { "persona": { "name": "Ryan Meinzer", "role": "Co-founder", "company": "SageScreen", "landingUrl": "https://sagescreen.io", "demoCalendarUrl": "https://cal.com/sagescreen/demo", "introCalendarUrl": "https://cal.com/sagescreen/intro" }, "voice": "ryan", "channel": "linkedin-comment", "context": { "postText": "Full text of the LinkedIn post or Reddit thread being responded to.", "authorName": "Jane Smith", "authorTitle": "VP of Talent at Acme Corp", "subreddit": "recruiting", "dmText": "Text of the DM being replied to (for dm-reply channels).", "crmNotes": ["Most recent CRM note about this person", "Older note"] }, "prompt": { "tone": "curious", "slant": "peer", "cta": { "style": "none", "landingUrl": "" }, "calendar": { "type": "demo", "url": "https://cal.com/sagescreen/demo" }, "extraInstructions": "Keep it under 20 words.", "withContext": false } } voice vs persona: voice ("ryan", "theo", "kayla", "nicole") controls HOW it sounds — word choice, rhythm, sentence style. persona is WHO is signing it — the name and title shown to the reader. They are independent: voice="ryan" + persona.name="Ryan Meinzer" means ghostwrite in Ryan's style as Ryan. voice="theo" + persona.name="Ryan Meinzer" means write in Theo's style but sign it as Ryan. channel values: "linkedin-comment" | "linkedin-dm-reply" | "linkedin-dm-init" | "reddit-comment" | "reddit-dm-reply" | "reddit-dm-init" cta.style values: "none" (no pitch) | "soft" | "direct" cta.landingUrl: product landing page URL to weave in when cta.style is not "none". calendar.type values: "none" | "demo" | "intro" calendar.url: the resolved booking URL for the selected calendar type. context fields are all optional — include what you have. Returns the paste-ready message text. No preamble, no quotes, no markdown. operationId: comment_agent requestBody: required: true content: application/json: schema: properties: message: title: Message type: string required: - message type: object responses: '200': description: >- Tool result. The shape is tool-specific; most tools return a JSON object, some a `{"result": ...}` envelope. content: application/json: schema: type: object additionalProperties: true '400': description: Bad arguments (unknown kwargs, malformed JSON body). content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': $ref: '#/components/responses/Unauthorized' '404': description: Unknown tool name. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: Tool raised an error during execution. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' components: schemas: ErrorResponse: type: object properties: error: type: string description: Human-readable error message. detail: type: string description: Optional additional context. required: - error responses: Unauthorized: description: Missing or invalid service token. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: Unauthorized securitySchemes: serviceToken: type: apiKey in: header name: X-Service-Token tokenQuery: type: apiKey in: query name: token ````