AcuMiglio MCP GitHub Agent
Provides tools for interacting with GitHub, enabling natural language management of repositories, issues, and file commits via the GitHub API.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@AcuMiglio MCP GitHub AgentCreate an issue to update the furniture catalog"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
🪑 AcuMiglio MCP GitHub Agent
AcuMiglio MCP GitHub Agent es un servidor MCP (Model Context Protocol) desarrollado con TypeScript que permite a un agente de inteligencia artificial interactuar con GitHub mediante lenguaje natural. El usuario puede realizar operaciones sobre GitHub sin ejecutar manualmente llamadas a la API. El LLM interpreta la solicitud, selecciona el tool MCP apropiado y el servidor ejecuta la operación mediante Octokit y GitHub API.
Related MCP server: mcp-server-github
🎯 Objetivo
El objetivo del proyecto es implementar un MCP Server funcional capaz de conectar un agente de IA con GitHub. AcuMiglio utiliza una identidad inspirada en una tienda de muebles ficticia, mientras que el objetivo técnico del proyecto es demostrar la integración: Usuario → Antigravity → LLM → MCP Server → Tools → Octokit → GitHub API.
✨ ¿Por qué es útil?
Permite realizar tareas habituales de GitHub utilizando lenguaje natural. Ejemplos:
Crear repositorios.
Consultar repositorios.
Crear issues.
Consultar issues.
Crear o actualizar archivos mediante commits. En lugar de interactuar directamente con la API de GitHub, el usuario puede escribir una instrucción como:
Creá un issue en mi repositorio indicando que debemos actualizar el catálogo de muebles. El LLM interpreta la intención y selecciona el tool correspondiente.
🏗️ Arquitectura
Usuario
↓
Antigravity (Host)
↓
LLM
↓
MCP Client
↓
AcuMiglio MCP Server
↓
Tools
↓
Schemas Zod
↓
GitHub Operations
↓
Octokit
↓
GitHub APIFlujo de una solicitud
El usuario escribe una instrucción en lenguaje natural.
El LLM interpreta la intención.
El LLM analiza las descripciones de los tools disponibles.
Selecciona el tool apropiado.
Zod valida los parámetros.
El MCP Server ejecuta la operación.
Octokit realiza la solicitud a GitHub API.
GitHub devuelve el resultado.
El MCP Server transforma la respuesta.
El agente comunica el resultado al usuario.
🧰 Tecnologías
Node.js
TypeScript
Model Context Protocol (MCP)
MCP TypeScript SDK
Zod
Octokit
GitHub REST API
Vitest
Antigravity
MCP Inspector
dotenv
📁 Estructura
M5-MCP/
├── .agents/
│ └── mcp_config.json
├── src/
│ ├── tools/
│ │ ├── create-repository.ts
│ │ ├── create-issue.ts
│ │ ├── list-repositories.ts
│ │ ├── create-commit.ts
│ │ └── list-issues.ts
│ ├── schemas/
│ │ └── index.ts
│ ├── github/
│ │ ├── client.ts
│ │ └── operations.ts
│ ├── errors/
│ │ └── index.ts
│ ├── utils/
│ │ ├── logging.ts
│ │ └── retry.ts
│ ├── server.ts
│ └── types.ts
├── tests/
│ ├── tools.test.ts
│ ├── github.test.ts
│ └── errors.test.ts
├── .env.example
├── .gitignore
├── package.json
├── tsconfig.json
├── vitest.config.ts
└── README.md⚙️ Requisitos
Node.js 20 o superior
npm
Git
Cuenta de GitHub
Personal Access Token de GitHub
Antigravity
🚀 Instalación
1. Clonar el repositorio
git clone URL_DEL_REPOSITORIOEntrar al proyecto:
cd M5-MCP2. Instalar dependencias
npm install3. Configurar variables de entorno
Crear un archivo .env en la raíz:
GITHUB_PERSONAL_ACCESS_TOKEN=tu_tokenNunca se debe subir .env al repositorio.
El proyecto incluye .env.example como referencia.
4. Compilar
npm run build5. Desarrollo
npm run dev🔐 GitHub Personal Access Token
El servidor necesita autenticarse con GitHub.
El token utilizado debe disponer de los permisos necesarios para las operaciones que se quieran ejecutar, incluyendo acceso de lectura/escritura a repositorios, contenidos e issues.
El token debe almacenarse exclusivamente en .env.
Nunca debe:
hardcodearse en el código;
incluirse en el README;
almacenarse en commits;
exponerse mediante logs.
Si un token se publica accidentalmente, debe revocarse inmediatamente.
🤖 Configuración con Antigravity
El proyecto utiliza Antigravity como host del MCP Server.
Ejemplo:
{
"mcpServers": {
"acumiglio-mcp": {
"command": "node",
"args": ["dist/src/server.js"],
"cwd": "RUTA_ABSOLUTA_AL_PROYECTO"
}
}
}cwd establece la raíz desde la que se ejecuta el servidor, permitiendo que dotenv encuentre correctamente el archivo .env.
No debe colocarse el token real dentro de este archivo.
Antes de utilizar Antigravity:
npm install
npm run build🛠️ Tools
1. create-repository
Crea un repositorio en la cuenta autenticada.
Parámetros
name: string — nombre del repositorio.description: string opcional — descripción.private: boolean — determina su visibilidad.
Prompt
Creá un repositorio público llamado acumiglio-catalogo para almacenar el catálogo digital de muebles.
2. list-repositories
Lista los repositorios de la cuenta autenticada.
Parámetros
per_page: number — cantidad de resultados.page: number — página solicitada.
Prompt
Mostrame mis últimos 5 repositorios de GitHub.
3. create-issue
Crea un issue en un repositorio.
Parámetros
owner: string — propietario.repo: string — repositorio.title: string — título.body:string opcional — descripción.
Prompt
Creá un issue en acumiglio-catalogo llamado "Agregar colección de sillones" indicando que debemos incorporar los nuevos modelos.
4. list-issues
Consulta los issues de un repositorio.
Parámetros
owner: string — propietario.repo: string — repositorio.state:open,closedoall.per_page: number — cantidad máxima.
Prompt
Mostrame los issues abiertos de acumiglio-catalogo.
5. create-commit
Crea o actualiza un archivo y genera un commit.
Parámetros
owner: string — propietario.repo: string — repositorio.path: string — ruta del archivo.message: string — mensaje del commit.content: string — contenido.branch: string opcional — rama.
Prompt
Creá README.md en acumiglio-catalogo con una presentación de AcuMiglio y hacé el commit con el mensaje "docs: agregar README".
🛡️ Validación y manejo de errores
Los inputs se validan mediante Zod antes de ejecutar las operaciones. El servidor transforma errores técnicos de GitHub en mensajes comprensibles. Se contemplan, entre otros:
401— autenticación.403— permisos o rate limit.404— recurso no encontrado.422— datos rechazados.429— rate limit. El sistema incorpora retry con exponential backoff para errores temporales y evita ciclos de reintentos inmediatos. Los logs utilizanstderrpara evitar interferir con la comunicación MCP mediantestdio.
🧪 Tests
Los tests utilizan Vitest. Ejecutar:
npm run testEl proyecto incluye tests para:
schemas de Zod;
inputs válidos;
inputs inválidos;
operaciones de GitHub;
mocks de Octokit;
autenticación;
permisos;
recursos inexistentes;
transformación de errores. Las operaciones de los tests utilizan mocks y no dependen de llamadas reales a GitHub.
🔍 MCP Inspector
Para probar el servidor sin utilizar un LLM:
npx @modelcontextprotocol/inspector node dist/src/server.jsInspector permite verificar los tools y ejecutar llamadas directamente.
🧯 Troubleshooting
El MCP Server no inicia
Ejecutar:
npm run buildy revisar errores de TypeScript.
Antigravity no encuentra el servidor
Verificar:
ruta del proyecto;
cwd;existencia de
dist/src/server.js;que el proyecto haya sido compilado.
Falta GITHUB_PERSONAL_ACCESS_TOKEN
Comprobar que existe:
M5-MCP/.envy que contiene:
GITHUB_PERSONAL_ACCESS_TOKEN=...GitHub devuelve 401
El token puede ser inválido o haber expirado.
GitHub devuelve 403
El token puede no disponer de permisos suficientes o se alcanzó un rate limit.
GitHub devuelve 404
Comprobar owner y repo.
Los tests fallan
Ejecutar:
npm install
npm run test🔒 Seguridad
.envestá excluido mediante.gitignore.El token no está hardcodeado.
Los logs evitan exponer credenciales.
.env.exampleno contiene valores reales.Los errores enviados al LLM no incluyen stack traces.
📜 Licencia
MIT
👩💻 Proyecto académico
Proyecto Integrador M5 — Especialización Backend. AcuMiglio MCP GitHub Agent.
Available Tools
5 toolscreate-commitCrear commit en GitHubA
Crea o actualiza un archivo en un repositorio de GitHub y genera un commit. Usa este tool cuando el usuario quiera crear un archivo, modificar su contenido o guardar cambios mediante un commit.
| Name | Required | Description | Default |
|---|---|---|---|
| path | Yes | Ruta del archivo dentro del repositorio. Ejemplo: docs/catalogo.md | |
| repo | Yes | Repositorio donde se realizará el commit. | |
| owner | Yes | Usuario u organización propietaria del repositorio. | |
| branch | No | Rama donde se realizará el commit. Si no se indica, se utilizará la rama principal. | |
| content | Yes | Contenido completo que se escribirá dentro del archivo. | |
| message | Yes | Mensaje que describe el cambio realizado en el commit. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full behavioral burden. It discloses that it creates or updates a file and generates a commit, which is useful, but it does not state permission requirements, whether existing files are overwritten, whether the commit is pushed, or any rate limits. A mutation tool needs more disclosure than this.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences with zero waste. The primary action is front-loaded and the usage condition follows immediately; no filler or redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The schema is rich and no output schema exists, so return values need not be explained. However, for a mutation operation with no annotations, the description omits important context such as authorization needs, overwrite behavior, and default branch handling, leaving meaningful gaps for an agent calling the tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all six parameters in detail. The description adds no parameter-specific meaning beyond what the schema provides, so the baseline of 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states a specific verb and resource ('Crea o actualiza un archivo... y genera un commit'), clearly distinguishing it from siblings like create-repository or create-issue, which operate on different resources.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
It explicitly states when to use the tool ('Usa este tool cuando el usuario quiera crear un archivo, modificar su contenido o guardar cambios mediante un commit'), covering the main scenarios. However, it does not name any alternative tools or state when not to use it.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
create-issueCrear issue de GitHubB
Crea un nuevo issue dentro de un repositorio de GitHub. Usa este tool cuando el usuario quiera registrar un problema, tarea, mejora, bug o solicitud dentro de un repositorio.
| Name | Required | Description | Default |
|---|---|---|---|
| body | No | Descripción opcional del problema, tarea o mejora del issue. | |
| repo | Yes | Nombre del repositorio donde se creará el issue. | |
| owner | Yes | Usuario u organización propietaria del repositorio en GitHub. | |
| title | Yes | Título claro y breve del issue que se desea crear. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must carry the full behavioral burden. It implies a write operation but says nothing about authentication requirements, required scopes/permissions, rate limits, idempotency, or what the tool returns after creation — significant gaps for a mutating GitHub tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences, no padding, with the action front-loaded before the usage cue. Efficient and appropriately sized for a simple four-parameter tool.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
All parameters are self-documented and no output schema exists, so the schema side is complete. But with zero annotations on a mutation tool, the description should at minimum note the auth/permission requirement and that the issue is created in the specified repo; that behavioral layer is missing.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so owner, repo, title and body are already documented in the schema. The description adds no format, constraint or usage detail beyond what the schema supplies, so the baseline 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
States a specific verb and resource: 'Crea un nuevo issue dentro de un repositorio de GitHub'. That is unambiguous and clearly separable from list-issues/create-commit/create-repository. It lacks any explicit contrast with siblings, so it stops 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.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The second sentence gives concrete trigger contexts — registering a problem, task, improvement, bug or request — which is real when-to-use guidance. However it never states when NOT to use it or names an alternative sibling (e.g. list-issues for reading), so it falls short of the 5 bar.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
create-repositoryCrear repositorio de GitHubA
Crea un nuevo repositorio en la cuenta de GitHub autenticada. Usa este tool cuando el usuario solicite crear, generar o iniciar un nuevo repositorio de GitHub.
| Name | Required | Description | Default |
|---|---|---|---|
| name | Yes | Nombre del nuevo repositorio de GitHub. Ejemplo: acumiglio-catalogo | |
| private | No | Indica si el repositorio debe ser privado. false crea un repositorio público. | |
| description | No | Descripción opcional que explica el propósito del repositorio. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden, and it only hints at auth context via 'cuenta de GitHub autenticada'. It says nothing about side effects, what happens on a duplicate/invalid name, whether the repo name is claimed immediately, or what permissions are required for this write operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences, front-loaded with the action and followed by the trigger condition, with no redundant or filler content.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Adequate for a simple 3-parameter create tool with no output schema, and the schema covers parameters well. However, for a mutation tool with zero annotations the description omits failure behavior and any indication of what the call yields (e.g., the created repository), leaving meaningful gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, with each parameter (name, private, description) documented including pattern, length limits and a default, so the baseline is 3. The description adds no parameter-level meaning beyond what the schema already provides.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
States a specific verb and resource ('Crea un nuevo repositorio') and scopes it to the authenticated GitHub account. It is clearly distinguishable from list-repositories/create-issue/create-commit by resource type, though it never names a sibling explicitly.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Gives explicit trigger conditions with synonyms ('cuando el usuario solicite crear, generar o iniciar un nuevo repositorio'), which is solid when-to-use guidance. It offers no when-not conditions, prerequisites, or named alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
list-issuesListar issues de GitHubB
Obtiene los issues de un repositorio de GitHub. Usa este tool cuando el usuario quiera consultar, revisar o listar issues abiertos, cerrados o todos los issues de un repositorio.
| Name | Required | Description | Default |
|---|---|---|---|
| repo | Yes | Repositorio cuyos issues se desean consultar. | |
| owner | Yes | Usuario u organización propietaria del repositorio. | |
| state | No | Estado de los issues a consultar: open, closed o all. | open |
| per_page | No | Cantidad máxima de issues a devolver. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full behavioral burden, yet it only says the tool 'obtiene' issues. It does not state that the operation is read-only, whether permissions are required, how pagination works beyond the per_page parameter, or what the response contains.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences, front-loaded with the core action and followed by a usage trigger. It is efficient, though 'consultar, revisar o listar' is slightly redundant and the state options restate the schema enum.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a four-parameter list tool with no annotations and no output schema, the description covers purpose and basic usage. It omits behavioral details such as read-only safety and pagination expectations, leaving some gaps for correct invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so all four parameters are already documented in the schema. The description hints at filtering by state ('abiertos, cerrados o todos') but adds no format, default, or usage detail beyond what the schema provides. A baseline of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states a specific verb and resource: 'Obtiene los issues de un repositorio de GitHub.' It clearly distinguishes itself from write-oriented siblings like create-issue, but does not explicitly name or contrast with any sibling tool.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
It gives a clear usage context: 'Usa este tool cuando el usuario quiera consultar, revisar o listar issues abiertos, cerrados o todos.' This tells the agent when to invoke it. However, it offers no when-not conditions or explicit alternatives such as create-issue.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
list-repositoriesListar repositorios de GitHubA
Obtiene y muestra los repositorios de la cuenta de GitHub autenticada. Usa este tool cuando el usuario quiera ver, consultar, buscar o listar sus repositorios.
| Name | Required | Description | Default |
|---|---|---|---|
| page | No | Número de página de resultados que se desea consultar. | |
| per_page | No | Cantidad máxima de repositorios que se desean obtener por página. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full disclosure burden. It implicitly conveys read-only behavior ('Obtiene y muestra') and states that a GitHub account must be authenticated, which is useful context, but it says nothing about rate limits, result volume, or pagination behavior. For a tool with zero annotation coverage, this leaves meaningful gaps.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences, front-loaded with the purpose before the usage trigger, with no redundant filler. The synonym list ('ver, consultar, buscar o listar') is slightly padded but serves keyword-based tool matching, so it largely earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple read-only listing tool with two fully documented, optional parameters and no output schema, the description covers the essential what-and-when. The main omission is pagination/return-volume context, which is only lightly implied by the schema.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100% and both parameters (page, per_page) are fully documented with defaults, ranges and meanings in the schema itself. The description adds no additional parameter guidance, so the baseline of 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
States a specific verb+resource ('Obtiene y muestra los repositorios') and scopes it to 'la cuenta de GitHub autenticada'. It is clearly distinguishable from the sibling write tools (create-repository, create-issue, create-commit), though it does not name or contrast with any of them explicitly.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The second sentence gives explicit trigger conditions ('cuando el usuario quiera ver, consultar, buscar o listar sus repositorios'), which is strong when-to-use guidance. However, it offers no when-not-to-use conditions and does not route to alternatives such as list-issues for issue-related queries.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
5 tool updates
v1.0.0- First observed
create-commit - First observed
create-issue - First observed
create-repository - First observed
list-issues - First observed
list-repositories
TDQS
Scored across 5 tools
Each tool pairs a distinct verb with a distinct resource (repository, issue, commit), so create-repository vs create-commit vs list-repositories are easy to tell apart with no overlap.
All five tools follow a strict verb-noun pattern in lowercase with hyphens (create-repository, list-repositories, create-issue, list-issues, create-commit), giving a fully predictable convention.
Five tools is a lean but well-scoped set for a GitHub agent; each earns its place, though it is slightly thin and would benefit from a few more operations.
The surface covers create/list for repositories and issues plus file commits, but lacks any update or delete operations and no pull-request support, so common tasks like closing issues or editing repos would dead-end an agent.
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