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Harness (Meta-skill)

por revfactory · revfactory/harness

A meta-skill: tell it your domain, it designs the agent team for you (roles, prompts, hand-offs) and saves the specs for reuse.

Harness treats agent design as a first-class workflow: you describe your domain (incident response, content review, code triage); it asks the right questions, then emits a documented team — roles, system prompts, when each takes over, and shared memory boundaries.

Por qué usarlo

Características clave

Demo en vivo

Cómo se ve en la práctica

listo

Instalar

Elige tu cliente

~/Library/Application Support/Claude/claude_desktop_config.json  · Windows: %APPDATA%\Claude\claude_desktop_config.json
{
  "mcpServers": {
    "harness-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/revfactory/harness",
        "~/.claude/skills/harness"
      ],
      "_inferred": true
    }
  }
}

Abre Claude Desktop → Settings → Developer → Edit Config. Reinicia después de guardar.

~/.cursor/mcp.json · .cursor/mcp.json
{
  "mcpServers": {
    "harness-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/revfactory/harness",
        "~/.claude/skills/harness"
      ],
      "_inferred": true
    }
  }
}

Cursor usa el mismo esquema mcpServers que Claude Desktop. La configuración del proyecto prevalece sobre la global.

VS Code → Cline → MCP Servers → Edit
{
  "mcpServers": {
    "harness-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/revfactory/harness",
        "~/.claude/skills/harness"
      ],
      "_inferred": true
    }
  }
}

Haz clic en el icono MCP Servers de la barra lateral de Cline y luego en "Edit Configuration".

~/.codeium/windsurf/mcp_config.json
{
  "mcpServers": {
    "harness-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/revfactory/harness",
        "~/.claude/skills/harness"
      ],
      "_inferred": true
    }
  }
}

Mismo formato que Claude Desktop. Reinicia Windsurf para aplicar.

~/.continue/config.json
{
  "mcpServers": [
    {
      "name": "harness-skill",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/revfactory/harness",
        "~/.claude/skills/harness"
      ]
    }
  ]
}

Continue usa un array de objetos de servidor en lugar de un mapa.

~/.config/zed/settings.json
{
  "context_servers": {
    "harness-skill": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/revfactory/harness",
          "~/.claude/skills/harness"
        ]
      }
    }
  }
}

Añádelo a context_servers. Zed recarga en caliente al guardar.

claude mcp add harness-skill -- git clone https://github.com/revfactory/harness ~/.claude/skills/harness

Un solo comando. Verifica con claude mcp list. Quita con claude mcp remove.

Casos de uso

Usos del mundo real: Harness (Meta-skill)

Design an incident-response agent team

👤 Claude Code users ⏱ ~15 min intermediate

Cuándo usarlo: You want multiple agents (triage, comms, scribe) cooperating on real incidents instead of one big system prompt.

Flujo
  1. Brief
    Tell harness: "incident response, B2B SaaS, 3 specialists please."✓ Copiado
    → Harness asks scope questions
  2. Answer
    Define escalation, channels, scribe duties.✓ Copiado
    → Spec drafts emerge
  3. Save
    Save specs into /agents/incident/.✓ Copiado
    → Reusable team def written

Resultado: Documented multi-agent team you can rerun next incident, not a one-off prompt.

Combinaciones

Combínalo con otros MCPs para multiplicar por 10

harness-skill + filesystem

Save designed teams alongside your project

Combine harness-skill with filesystem: Save designed teams alongside your project✓ Copiado

Herramientas

Lo que expone este MCP

HerramientaEntradasCuándo llamarCoste
design (see docs) Run the design interview 1 call
review (see docs) Critique an existing team for missing roles or unclear hand-offs 1 call

Coste y límites

Lo que cuesta ejecutarlo

Cuota de API
N/A
Tokens por llamada
Interview is moderate
Monetario
Free skill
Consejo
Reuse outputs as-is for next domain; don't redesign from scratch

Seguridad

Permisos, secretos, alcance

Ámbitos mínimos: fs-read fs-write
Almacenamiento de credenciales: None
Salida de datos: None

Resolución de problemas

Errores comunes y soluciones

Output too generic

Provide concrete examples (real past incidents) during the interview

Alternativas

Harness (Meta-skill) vs otros

AlternativaCuándo usarlaContrapartida
Hand-rolled promptsSingle-agent flowDoesn't scale to multi-agent

Más

Recursos

📖 Lee el README oficial en GitHub

🐙 Ver issues abiertas

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