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agent-did-crewai

Integracion funcional de Agent-DID para CrewAI Python.

Esta variante reutiliza el SDK Python real de Agent-DID para snapshot de identidad, resolucion, verificacion, firma opt-in, observabilidad estructurada y callbacks/guardrails ligeros orientados al runtime de CrewAI.

Estado

  • Estado actual: functional
  • Roadmap: F2-05
  • Lenguaje objetivo: Python
  • Dependencia previa resuelta: SDK Python de Agent-DID
  • Implementacion: funcional para tools base, observabilidad estructurada, callbacks, guardrails, outputs estructurados y hooks de integracion

El paquete ya expone una factory publica, tools reutilizables, callbacks de trazabilidad, observabilidad vendor-neutral, guardrails ligeros y helpers explicitos para Agent, Task y Crew. Mantiene defaults seguros: firma HTTP, firma arbitraria, rotacion de claves e historial documental siguen siendo operaciones opt-in.

Hallazgos tecnicos confirmados

La documentacion publica de CrewAI confirma superficies utiles para una integracion Agent-DID:

  • Agent con role, goal, backstory, tools, memory, step_callback, reasoning, knowledge_sources y control de contexto.
  • Task con agent, tools, context, callback, guardrail, guardrails, output_json y output_pydantic.
  • Crew con agents, tasks, process, memory, task_callback, step_callback, planning, output_log_file y stream.
  • BaseTool y decorator tool para herramientas custom sync y async.
  • kickoff(), kickoff_async(), akickoff() y streaming para ejecucion.
  • Logs, usage metrics y replay CLI para trazabilidad operativa.

Objetivo

Integrar Agent-DID como capa de identidad verificable para agentes y crews de CrewAI, con foco en:

  • exponer el DID actual y capacidades verificables del agente,
  • firmar payloads o solicitudes HTTP mediante opt-in,
  • verificar firmas y resolver documentos DID desde herramientas reutilizables,
  • usar callbacks, guardrails y outputs estructurados para reforzar trazabilidad,
  • mantener la clave privada fuera del prompt y del contexto visible al modelo.

Compatibilidad objetivo

  • agent-did-sdk ==1.0.0rc1
  • Python 3.10+
  • CrewAI host runtime opcional via python -m pip install -e ".[runtime]"; el paquete expone herramientas compatibles sin forzar dependencia dura para tests locales del repo

Uso rapido

from agent_did_crewai import create_agent_did_crewai_integration

integration = create_agent_did_crewai_integration(
    agent_identity=agent_identity,
    runtime_identity=runtime_identity,
    expose={
        "sign_http": True,
        "verify_signatures": True,
        "sign_payload": False,
        "rotate_keys": False,
        "document_history": True,
    },
)

El bundle devuelto incluye:

  • tools: wrappers compatibles con el patrón de tools del host
  • get_current_identity() y get_current_document()
  • compose_system_prompt(...)
  • create_agent_kwargs(...) para inyectar backstory y tools en Agent; si CrewAI real esta instalado adapta automaticamente a BaseTool
  • create_task_kwargs(...) para inyectar callback, guardrail, output_pydantic y tools en Task; si CrewAI real esta instalado adapta automaticamente a BaseTool
  • create_crew_kwargs(...) para inyectar step_callback y task_callback en Crew
  • create_output_model(...) y create_identity_output_model(...) para contratos output_pydantic

Hooks de integracion

El paquete ahora tambien expone helpers ligeros para conectar la identidad a callbacks y validaciones de salida:

  • create_step_callback(integration, sink=None)
  • create_task_callback(integration, sink=None)
  • create_identity_output_guardrail(integration, required_fields=None)

Estos helpers no exponen secretos por defecto: redaccionan payload, body, signature y claves privadas si aparecen en callbacks, y el guardrail rechaza outputs con esos campos sensibles.

Observabilidad

La factory publica acepta instrumentacion opcional sin acoplar el paquete a un backend especifico:

import logging

from agent_did_crewai import create_agent_did_crewai_integration
from agent_did_crewai.observability import compose_event_handlers, create_json_logger_event_handler

logger = logging.getLogger("agent_did_crewai")
events = []

integration = create_agent_did_crewai_integration(
    agent_identity=agent_identity,
    runtime_identity=runtime_identity,
    expose={"sign_http": True, "sign_payload": True},
    observability_handler=compose_event_handlers(
        events.append,
        create_json_logger_event_handler(logger, extra_fields={"service": "agent-gateway"}),
    ),
)

Eventos emitidos:

  • agent_did.identity_snapshot.refreshed
  • agent_did.tool.started
  • agent_did.tool.succeeded
  • agent_did.tool.failed
  • agent_did.crewai.step
  • agent_did.crewai.task

Redaccion por defecto:

  • payload, body, signature, signatures, private_key, seed y mnemonic se sustituyen por metadatos de longitud.
  • Authorization, Signature, Signature-Input, Cookie, Set-Cookie y X-API-Key se redactan en headers.
  • Las URLs en eventos se normalizan sin query string, fragmento ni credenciales embebidas.

Helpers publicos disponibles:

  • compose_event_handlers(...)
  • create_json_logger_event_handler(...)
  • serialize_observability_event(...)

Los callbacks de CrewAI siguen retornando payloads ligeros y saneados, pero si configura observability_handler o logger, la integracion tambien emite eventos estructurados reutilizables para debugging local, logging JSON o pipelines de auditoria.

Defaults seguros

  • current_identity, resolve_did y verify_signatures quedan habilitados por defecto.
  • sign_http, sign_payload, rotate_keys y document_history permanecen deshabilitados por defecto.
  • sign_http rechaza esquemas no HTTP(S), credenciales embebidas y targets privados/loopback salvo opt-in explicito con allow_private_network_targets=True.
  • La rotacion de clave actualiza el estado compartido de la integracion y las tools, evitando snapshots obsoletos despues de una rotacion.
  • Callbacks y guardrails no propagan secretos crudos por defecto.

Componentes previstos

  • pyproject.toml: metadata del paquete Python.
  • src/agent_did_crewai/__init__.py: factory principal y estado del paquete.
  • src/agent_did_crewai/config.py: configuracion publica.
  • src/agent_did_crewai/context.py: helpers de prompt y contexto.
  • src/agent_did_crewai/integration.py: bundle principal del adaptador.
  • src/agent_did_crewai/observability.py: eventos estructurados, fan-out y logging JSON saneado.
  • src/agent_did_crewai/structured_outputs.py: contratos output_pydantic para Task.
  • src/agent_did_crewai/sanitization.py: redaccion de callbacks y deteccion de campos sensibles.
  • src/agent_did_crewai/snapshot.py: snapshot de identidad.
  • src/agent_did_crewai/tools.py: herramientas Agent-DID para CrewAI.
  • src/agent_did_crewai/callbacks.py: step/task callbacks para trazabilidad.
  • src/agent_did_crewai/guardrails.py: validaciones de salida basadas en DID y firma.
  • tests/: pruebas automatizadas funcionales y de observabilidad.
  • examples/agent_did_crewai_mvp_example.py: ejemplo runnable del bundle.
  • examples/agent_did_crewai_observability_example.py: ejemplo de callback + JSON logging saneado.
  • examples/agent_did_crewai_production_recipe_example.py: receta operational con guardas de entorno, outputs estructurados, guardrail y firma HTTP opt-in.

Criterios de implementacion

  1. Herramientas CrewAI para DID actual, resolucion documental y verificacion de firmas.
  2. Firma HTTP con opt-in explicito.
  3. Integracion con callbacks, guardrails y outputs estructurados para auditar salidas y pasos relevantes.
  4. Rotacion de claves y firma arbitraria deshabilitadas por defecto.
  5. Helpers explicitos para Agent, Task y Crew.
  6. Ejemplo runnable con wiring compatible con Agent, Task y Crew.
  7. Suite automatizada de pruebas y build en Python.

Validacion local

cd sdk-python
python -m pip install -e .[dev]
cd ../integrations/crewai
python -m pip install -e .[dev]
python -m build
python -m pytest tests/ -q

Para validar contrato contra el runtime real de CrewAI:

cd integrations/crewai
python -m pip install -e ".[runtime]"
python -m pytest tests/test_runtime_smoke.py -q

El smoke test real no ejecuta kickoff() ni requiere credenciales de modelo; valida que los helpers publicados por Agent-DID siguen siendo aceptados por Agent, Task y Crew del runtime instalado.

Para ejecutar la receta production-style sin sorpresas en local:

cd integrations/crewai
set RUN_CREWAI_PRODUCTION_EXAMPLE=1
python examples/agent_did_crewai_production_recipe_example.py

La receta usa un registry en memoria y no exige credenciales de modelo por defecto; sirve para validar configuracion operativa, observabilidad, guardrails y firma HTTP saneada. Si crewai esta instalado mediante .[runtime], tambien instancia objetos reales de Agent, Task y Crew.

Gobernanza de implementacion

Referencias

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