direction: right

user: "Utilisateur\nSlack, Chainlit" { shape: person }
agent: "Agent DevOps\nLangGraph" { class: accent }
policy: "Policy, guardrails\nlimites, RBAC, approbation"
mcp: "MCP\nstandardise les outils"
llm: "LLM\nGPT-4 via LiteLLM"
tools: "Outils" {
  retriever: "Knowledge Service\nRAG, retriever"
  check: "check_status"
  logs: "get_logs"
  ticket: "create_ticket"
}
chromadb: "ChromaDB\nrunbooks indexés" { shape: cylinder }

user -> agent: "question" { class: principal }
agent -> policy: "vérifie les permissions" { class: principal }
policy -> mcp: "autorisé" { class: principal }
agent -> llm: "inférence"
mcp -> tools.retriever
mcp -> tools.check
mcp -> tools.logs
mcp -> tools.ticket
tools.retriever -> chromadb: "recherche"