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PostMCP MCP Server

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PostMCP AI Model Context Protocol (MCP) Servidor

npm version License: MIT MCP Compatible

Servidor oficial de Model Context Protocol (MCP) de PostMCP AI. Conecta tus pipelines de publicación en redes sociales directamente con asistentes de IA, aplicaciones de escritorio, flujos de trabajo de IDE y entornos web como Claude Desktop, Claude.ai, Cursor y ChatGPT Custom GPTs.

Las plataformas compatibles incluyen LinkedIn, X (Twitter), Facebook, Instagram, Threads y Bluesky.


🚀 Características y capacidades

  • 🤖 15 herramientas integradas: Espacios de trabajo, cuentas conectadas y su salud de token, kits de marca, la cola de publicaciones, comprobaciones previas al vuelo, crear/programar/reprogramar/publicar/reintentar/eliminar, y generación de imágenes.

  • Modos de transporte duales: Modo Stdio nativo (para aplicaciones de escritorio locales e IDEs) y modo HTTP Streamable (para servicios web, Claude.ai y conectores remotos).

  • 🔑 Autenticación flexible: Detecta automáticamente la clave API desde variables de entorno (POSTMCPAI_API_KEY), parámetros de consulta de URL (?apikey=YOUR_KEY) o cabeceras de autorización HTTP (x-api-key, Bearer token).

  • 🗂️ Consciente de múltiples espacios de trabajo: La clave API lleva su propio espacio de trabajo, por lo que una clave simple es suficiente. Para actuar sobre otro, cada herramienta acepta un workspaceId opcional, también configurable por conexión (?projectId=..., x-project-id) o por proceso (POSTMCPAI_PROJECT_ID).

  • 🤖 Compatible con ChatGPT Actions: Incluye un generador de especificaciones OpenAPI 3.0 integrado (/openapi.json) y endpoints REST (/api/tools/:name) para la integración con ChatGPT Custom GPT.

  • 🔒 Soporte OAuth 2.0 y RFC 9728: Anuncia metadatos del servidor de autorización PKCE para un registro dinámico de clientes sin problemas con Claude.ai.


Related MCP server: @posteverywhere/mcp

📁 Arquitectura del repositorio

mcp-server/
├── bin/
│   └── cli.js            # Executable CLI entry point (Stdio / HTTP mode runner)
├── src/
│   ├── config.js         # Centralized configuration & environment loader
│   ├── client.js         # Backend API client, API key & workspace extraction
│   ├── platforms.js      # Platform limits, credit pricing & post cost helper
│   ├── tools/
│   │   ├── definitions.js# MCP tool JSON schemas & parameter specifications
│   │   ├── handlers.js   # MCP tool execution handlers
│   │   └── index.js      # Tool definitions aggregator
│   ├── server.js         # MCP Server instance factory
│   ├── routes/
│   │   ├── oauth.js      # OAuth 2.0 & RFC 9728 discovery endpoints
│   │   ├── openapi.js    # OpenAPI 3.0 schema & ChatGPT REST endpoints
│   │   ├── mcpHttp.js    # MCP Streamable HTTP transport (/mcp)
│   │   └── health.js     # Health check & system metadata endpoints
│   ├── app.js            # Express application factory
│   └── index.js          # Main library entry point
├── index.js              # Executable wrapper script
├── package.json
└── README.md

⚙️ Configuración del entorno

Variable de entorno

Descripción

Valor por defecto

POSTMCPAI_API_KEY

Requerida. Tu clave API secreta del panel de PostMCP AI.

None

POSTMCPAI_API_URL

La URL raíz de la API de tu servicio backend de PostMCP AI.

http://localhost:5023

POSTMCPAI_PROJECT_ID

Opcional. Sobrescribe el espacio de trabajo al que está vinculada la clave API. A su vez, es sobrescrito por el workspaceId de una llamada.

El espacio de trabajo desde el que se emitió la clave API

PORT

Configurar esto lanza el servidor en Modo HTTP Streamable Remoto.

None (por defecto, Modo Stdio)


🛠️ Referencia de herramientas MCP

Cada herramienta a continuación también acepta un workspaceId opcional (de list_workspaces) para actuar sobre un espacio de trabajo específico.

Lectura

Nombre de la herramienta

Descripción

Requerido

Opcional

get_user_info

Usuario autenticado: plan, saldo de créditos, tokens de IA, espacio de trabajo activo y rol.

workspaceId

list_workspaces

Cada espacio de trabajo al que pertenece el usuario, con ids, roles y plataformas conectadas.

get_connected_accounts

Perfiles sociales conectados con el profileId necesario para dirigirse a ellos.

workspaceId

get_account_health

Conexiones cuyo token ha expirado o está a punto de hacerlo y necesitan reconexión.

workspaceId

list_brandings

Kits de marca: tono, audiencia, palabras clave, imágenes de estilo.

workspaceId

list_posts

Cola de publicaciones, más recientes primero, con estado de entrega por perfil, paginación y recuentos.

status, page, limit, all

get_post

Una publicación completa: qué perfiles la recibieron, URLs en vivo y errores por perfil.

id

Escritura

Nombre de la herramienta

Descripción

Requerido

Opcional

preflight_post

Prueba en seco: límites de caracteres, perfiles no conectados, medios faltantes, costo de créditos. No publica nada.

content

targetAccounts, platforms, mediaUrl

create_post

Borrador, programar o publicar inmediatamente una publicación en perfiles nombrados. Cada perfil se convierte en su propia publicación con su propio id.

content

targetAccounts, variants, platforms, publishImmediately, scheduleDate, scheduleTime, timezone, mediaUrl

publish_post_now

Publicar una publicación existente inmediatamente; también reintenta una publicación fallida, omitiendo perfiles ya entregados.

id

update_post

Actualizar contenido, perfiles objetivo, programación, medios o estado.

id

content, targetAccounts, platforms, scheduleDate, scheduleTime, timezone, mediaUrl, status

reschedule_post

Mover una publicación a una nueva franja, manteniendo el texto y los objetivos. Reactiva publicaciones fallidas y borradores.

id, scheduleDate, scheduleTime

timezone

reset_stuck_post

Liberar una publicación atascada a mitad de publicación para que pueda reintentarse. Los perfiles entregados conservan su estado.

id

force

delete_post

Cancelar y eliminar una publicación programada o fallida.

id

generate_image

Generar una imagen de publicación y devolver su URL alojada para mediaUrl. Gasta tokens de IA.

prompt

brandingId, styleImageUrl

Procesamiento por lotes

Nombre de la herramienta

Descripción

Requerido

Opcional

multicall

Ejecuta hasta 20 de las herramientas anteriores en una sola solicitud, en orden. Los nombres de las herramientas se validan antes de que se ejecute cualquier cosa, por lo que un error tipográfico no puede dejar medio lote escrito. No se puede anidar.

calls

stopOnError, workspaceId

{
  "calls": [
    { "id": "img", "tool": "generate_image", "arguments": { "prompt": "launch banner" } },
    {
      "tool": "create_post",
      "arguments": {
        "content": "We shipped it 🚀",
        "targetAccounts": [
          { "platform": "linkedin", "profileId": "lin_7741903" },
          { "platform": "twitter", "profileId": "tw_1293847", "content": "We shipped it 🚀" }
        ],
        "scheduleDate": "2026-09-01",
        "scheduleTime": "10:00",
        "timezone": "Asia/Kolkata"
      }
    }
  ],
  "stopOnError": true
}

La respuesta contiene una entrada por llamada — { id, tool, ok, result } o { id, tool, ok: false, error } — además de recuentos y, cuando un fallo detuvo el lote, las llamadas que se omitieron.

Notas para clientes

  • Dirígete a perfiles, no a plataformas. targetAccounts envía solo a los perfiles nombrados; platforms se distribuye a todos los perfiles conectados en cada plataforma.

  • Una publicación por perfil. create_post almacena una publicación separada por perfil objetivo, para que cada una pueda editarse, reintentarse o cancelarse por separado. Proporciona texto por perfil mediante targetAccounts[].content o el mapa variants.

  • Siempre pasa timezone cuando la hora del reloj importa. El backend usa UTC por defecto, por lo que una publicación a las 9:00 IST programada sin zona se publica a las 14:30 IST.

  • Créditos se cobran por perfil entregado (X/Twitter cuesta 5, otros 1), más un recargo único de 50 créditos cuando el texto contiene un enlace. preflight_post informa de esto antes de que te comprometas.


💻 Guías de integración de clientes

1. Aplicación Claude Desktop (Modo Stdio)

Añade la configuración siguiente a tu archivo de configuración de Claude Desktop:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

  • Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "postmcpai": {
      "command": "npx",
      "args": ["-y", "@postmcpai/server"],
      "env": {
        "POSTMCPAI_API_KEY": "pmcp_sec_your_secret_api_key_here",
        "POSTMCPAI_API_URL": "http://localhost:5023"
      }
    }
  }
}

2. IDE Cursor

  1. Abre Configuración de Cursor -> Funciones -> MCP.

  2. Haz clic en + Añadir nuevo servidor MCP.

  3. Rellena los detalles:

    • Nombre: postmcpai

    • Tipo: command

    • Comando: npx -y @postmcpai/server

  4. En Variables de entorno, añade:

    • POSTMCPAI_API_KEY = pmcp_sec_your_secret_api_key_here

    • POSTMCPAI_API_URL = http://localhost:5023

  5. Haz clic en Guardar.


3. Claude.ai y conectores web remotos (modo HTTP Streamable / SSE)

Aloja este servidor en cualquier servicio en la nube (Render, Railway, Fly.io, Vercel) o tuneliza tu máquina local usando ngrok.

Lanzamiento en modo HTTP:

export POSTMCPAI_API_KEY="pmcp_sec_your_secret_api_key_here"
export POSTMCPAI_API_URL="https://your-backend-domain.com"
export PORT=3000

npm run start:sse

Conexión a Claude.ai:

  1. Proporciona tu URL MCP pública con tu clave API adjunta: https://your-hosted-domain.com/mcp?apikey=pmcp_sec_your_secret_api_key_here

  2. Claude.ai descubrirá las capacidades de las herramientas a través de /mcp y se autenticará sin problemas.

  3. Esa URL es todo lo que necesitas: la clave está vinculada al espacio de trabajo desde el que se emitió, por lo que las herramientas actúan sobre ese espacio de trabajo sin que se lo indiquen. Para apuntar la misma clave a un espacio de trabajo diferente, añade &projectId=YOUR_WORKSPACE_ID (o envía una cabecera x-project-id); las llamadas individuales a herramientas aún pueden sobrescribir cualquiera de ellos con workspaceId.


4. ChatGPT Custom GPTs (acciones REST)

  1. Al configurar una acción de Custom GPT, especifica la URL de tu servidor (por ejemplo, https://your-hosted-domain.com).

  2. Importa el esquema OpenAPI directamente desde: https://your-hosted-domain.com/openapi.json

  3. Configura la autenticación como API Key (Nombre de cabecera: Authorization o x-api-key).


5. Uso programático de la biblioteca Node.js

También puedes usar @postmcpai/server como biblioteca en tus propios backends de Node.js:

import { createServer, createExpressApp, makeBackendRequest } from "@postmcpai/server";

// Create a standalone MCP Server instance
const mcpServer = createServer(() => process.env.POSTMCPAI_API_KEY);

// Or create an Express app with all remote routes attached
const app = createExpressApp();
app.listen(3000);

🧪 Pruebas locales y desarrollo

# Clone the repository
git clone https://github.com/postmcpai/postmcp-mcp-server.git
cd postmcp-mcp-server

# Install dependencies
npm install

# Start in Stdio Mode
npm start

# Start in HTTP Mode with hot reload
npm run dev

📄 Licencia

Distribuido bajo la Licencia MIT. Copyright © 2026 PostMCP AI.

Available Tools

7 tools
create_postC

Schedule or publish immediately a post to one or more social media platforms or specific accounts.

ParametersJSON Schema
NameRequiredDescriptionDefault
contentYesThe text body / commentary of the post.
mediaUrlNoOptional public URL of an image/video to attach.
platformsNoTarget platforms for the post.
scheduleDateNoSchedule date in YYYY-MM-DD format (required if publishImmediately is false).
scheduleTimeNoSchedule time in 24-hour HH:MM format (required if publishImmediately is false).
targetAccountsNoOptional specific target accounts containing platform, profileId, and userId.
publishImmediatelyNoIf true, publishes immediately. Otherwise schedules for later.

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description must disclose behavioral traits itself. It mentions scheduling and immediate publishing (a mutation) but does not discuss irreversibility, authentication requirements, failure handling, or what happens after publishing. This is a notable gap for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is one concise sentence, front-loaded with the core action 'Schedule or publish immediately.' Every word contributes meaning, and there is no redundant or filler content.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite the schema covering parameter details, the tool has no annotations or output schema, leaving the description as the only source for behavioral context. It fails to mention expected return values, error conditions, or platform-specific constraints, which is inadequate for a 7-parameter mutation tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

All 7 parameters have schema descriptions (100% coverage), so the schema does the heavy lifting. The description adds no new semantic detail beyond the schema; it echoes the notion of platforms and accounts but does not clarify any parameter beyond what's already provided.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses specific verbs 'Schedule or publish immediately' and identifies the resource 'a post to one or more social media platforms or specific accounts,' clearly distinguishing its dual publishing modes. However, it does not explicitly contrast with sibling tool publish_post_now, so it falls short of a 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No explicit guidance is provided about when to use create_post over alternatives like publish_post_now or update_post. The description implies scheduling or immediate publishing but gives no exclusions, prerequisites, or alternative scenarios, leaving usage context unclear.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

delete_postA

Cancel and delete a scheduled or failed post from the database.

ParametersJSON Schema
NameRequiredDescriptionDefault
idYesThe Database ObjectId of the post to delete.

TDQS

A4.1/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the burden of disclosing behavioral traits. It clearly says 'delete from the database,' which implies permanence, but it does not explicitly state irreversibility, permissions required, or potential side effects. This is a moderate gap for a destructive tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, concise sentence that front-loads the action and target. There is no wasted wording or redundancy.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple tool with one parameter and no output schema, the description fully explains what the tool does and what it operates on. It is complete for its complexity, given the sibling context and the clear 'database' reference.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema fully documents the 'id' parameter as a Database ObjectId (100% coverage), so the description adds no extra meaning beyond the schema. The description does not elaborate on the parameter or its format, so it stays at the baseline.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses a specific verb (delete) and resource (scheduled or failed post), clearly distinguishing it from sibling tools like update_post or publish_post_now. It states exactly what the tool does and the scope of posts it affects.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The phrase 'scheduled or failed post' provides clear context on when to use this tool versus alternatives, effectively excluding published posts. However, it does not explicitly name alternative tools or state when not to use it, so it stops short of full guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_connected_accountsA

List all active, connected social media channels and their associated profile usernames.

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

A3.6/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries full burden for behavioral disclosure. It only states a read-only action ('List') without mentioning any nuances like authentication requirements, empty list behavior, or whether 'active' affects the returned data.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single concise sentence that front-loads the action and resource. Every word adds value with no redundancy.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple tool with no parameters and no output schema, the description adequately conveys the purpose and the main output elements (channels and usernames). It could be more explicit about return format, but the level is sufficient for a list operation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has no parameters, and the schema is an empty object. Per the baseline for zero-parameter tools, a score of 4 is appropriate since there are no parameter semantics to clarify.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool lists active, connected social media channels and their profile usernames. The verb 'List' and specific resource 'connected social media channels' make it distinct from sibling tools like get_user_info or list_posts.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description does not provide any guidance on when to use this tool vs alternatives. No exclusions, prerequisites, or explicit context are given, so the agent must infer usage from the resource name.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_user_infoA

Retrieve details of the logged-in user including subscription plan, credit balance, and AI token count.

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the full burden. It clearly indicates a read operation and lists the data fields returned, but it does not disclose potential errors, authentication requirements beyond 'logged-in', or whether the data is real-time. For a simple read tool, this is adequate but not rich.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence of 13 words, front-loading the primary action and resource. Every word adds value and there is no redundancy or filler.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple tool with no parameters and no output schema, the description provides the core purpose and enumerates the key returned fields. It does not explain the full response structure, but the listed inclusions offer sufficient context for an agent to invoke the tool correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

There are zero parameters, and the schema coverage is 100% (empty properties). Per the rubric, a baseline of 4 applies when there are no parameters. The description adds no parameter-specific details because none exist.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses the specific verb 'Retrieve' and clearly identifies the resource as 'details of the logged-in user' with explicit mention of subscription plan, credit balance, and AI token count. This distinguishes it from sibling tools like get_connected_accounts and list_posts.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies this tool is for accessing current user information, but it does not explicitly state when to use it over alternatives or provide exclusions. No sibling tool comparison or when/when-not guidance is given.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

list_postsA

Retrieve a list of scheduled, published, and failed social media posts.

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

A4.2/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the full burden. 'Retrieve' clearly indicates a read-only operation, and specifying the statuses adds context. However, it does not disclose pagination, ordering, or potential limitations, which would be expected for a list operation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, front-loaded sentence with no filler. Every word contributes to understanding the tool's purpose and scope.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple parameterless list tool, the description is largely sufficient. It identifies the resource and the included statuses, which is enough for an AI to decide when to use it. A minor gap is not mentioning the return format or any limits, but given the simplicity, this is acceptable.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has zero parameters, so there is nothing to document beyond what the schema already conveys (empty object). The description adds no parameter details, but the baseline for zero parameters is 4, and there is nothing missing.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses a specific verb ('Retrieve') and resource ('social media posts'), and further specifies the scope ('scheduled, published, and failed'). This clearly distinguishes it from sibling tools like create_post, delete_post, and publish_post_now, which are mutations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies this tool is for viewing posts, contrasting with the mutating sibling tools. However, it does not explicitly state when to use this tool over alternatives like get_user_info, though the context strongly suggests it for listing posts. No exclusions or prerequisites are mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

publish_post_nowA

Broadcast an existing scheduled post immediately to its platforms.

ParametersJSON Schema
NameRequiredDescriptionDefault
idYesThe Database ObjectId of the post to publish.

TDQS

A3.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It states the action and immediacy but does not mention potential side effects like whether the post loses its scheduled status, if the action is reversible, any permission requirements, or rate limits. This is a notable gap for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, compact sentence that immediately conveys the action, target, and timing. No filler words; every word earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The description is clear at a high level but omits details such as what happens to the original scheduled post, how 'platforms' are determined (e.g., connected accounts), and any prerequisites. Given the absence of annotations and an output schema, these gaps leave the description only modestly complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema provides 100% coverage for the single parameter 'id' with a clear description. The tool description adds the useful constraint that the post must be an 'existing scheduled post', which is meaningful context beyond the schema's generic 'post to publish' description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses the specific verb 'broadcast' and clearly identifies the resource as an 'existing scheduled post' with the immediate action of publishing to platforms. This distinguishes it from sibling tools like create_post, update_post, and delete_post, which handle different operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description clearly implies the use case: publishing a previously scheduled post right away. However, it does not explicitly mention alternatives or state when not to use it, though the sibling list provides no other tool for this action, making the context clear.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

update_postB

Update the fields (content, platforms, schedule date/time) of an existing post.

ParametersJSON Schema
NameRequiredDescriptionDefault
idYesThe Database ObjectId of the post to update.
statusNoReset status of the post.
contentNoUpdated text body of the post.
platformsNoUpdated platforms for publication.
scheduleDateNoUpdated schedule date in YYYY-MM-DD format.
scheduleTimeNoUpdated schedule time in HH:MM format.

TDQS

B3.2/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the full burden of behavioral disclosure. It simply says 'update' without explaining partial vs. full field replacement, what happens to unspecified fields, whether the status can be reset, or any side effects. For a mutation tool, this lack of nuance is a significant gap.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence that is front-loaded with the verb and object. Every word earns its place; there is no filler or redundancy. It is appropriately concise given the tool's straightforward nature.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool has 6 parameters, no output schema, and no annotations, yet the description is only one short sentence. It never mentions what happens on success or failure, whether updates are partial or full, or how the status field fits into the workflow. This is insufficient for such a complex mutation tool, especially without structured metadata to fill the gaps.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the baseline is 3. The description adds a high-level grouping ('schedule date/time' for scheduleDate and scheduleTime) but does not provide additional meaning beyond the parameter descriptions already present. It doesn't compensate for or extend the schema, so a 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action: 'Update the fields (content, platforms, schedule date/time) of an existing post.' The verb 'update' and resource 'post' are specific, and listing the fields distinguishes it from siblings like create_post and delete_post. It omits the status field, but the core purpose is unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives. It doesn't mention create_post for new posts, publish_post_now for immediate publishing, or any prerequisites. The intended context is implied by the name but not explicitly stated, and no exclusions or alternative references are given.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

TDQS

A3.9/5.0
Disambiguation5/5

Each tool targets a distinct resource or action: user info, connected accounts, and post management (list, create, publish, update, delete). The actions are clearly separated, and even create_post vs publish_post_now are distinguished by whether the post is new or existing.

Naming Consistency5/5

All tool names follow a consistent verb_noun pattern in snake_case (get_user_info, list_posts, create_post, publish_post_now, delete_post, update_post). The naming is uniform and predictable.

Tool Count5/5

Seven tools is well-scoped for a social media post management server. Each tool covers a necessary operation without redundancy or bloat, making the set easy to navigate.

Completeness5/5

The tool set provides full CRUD for posts (create, list, update, delete), plus a specialized publish action, and includes user/account context. This covers the core workflow of managing social media posts from scheduling to publication.

Maintenance

ActivityMaintained
ResponsivenessSyncing

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