%% Grounded research desk on gcp. Generated; edit the catalog, not this file.
flowchart LR
  subgraph people["People and channels"]
    n_analyst["Analyst<br/><small>Person</small>"]:::people
    n_workspace["Research workspace<br/><small>Cloud Run</small>"]:::people
  end
  subgraph control["Control and trust"]
    n_sso["Workforce sign-in<br/><small>Identity-Aware Proxy</small>"]:::control
    n_answer_api["Answer API<br/><small>Cloud Run</small>"]:::control
    n_gateway["Model gateway<br/><small>Apigee (AI gateway policies)</small>"]:::control
  end
  subgraph intelligence["Intelligence and work"]
    n_model["Generation model<br/><small>Gemini 3.8 Flash (Agent Platform)</small>"]:::intelligence
  end
  subgraph knowledge["Knowledge and records"]
    n_index["Hybrid retrieval index<br/><small>Agent Search</small>"]:::knowledge
    n_ingest["Ingestion pipeline<br/><small>RAG Engine (Agent Platform)</small>"]:::knowledge
    n_corpus["Source corpus<br/><small>Cloud Storage</small>"]:::knowledge
    n_ledger["Answer ledger<br/><small>Firestore</small>"]:::knowledge
  end
  subgraph assurance["Assurance and operations"]
    n_traces["Traces and cost<br/><small>Cloud Logging, Monitoring, Trace</small>"]:::assurance
    n_evals["Eval harness<br/><small>Evaluation service (Agent Platform)</small>"]:::assurance
  end
  %% flow ask (data, internal)
  n_analyst -->|"Question"| n_workspace
  %% flow signin (control, identity)
  n_workspace -.->|"SSO and group claims"| n_sso
  %% flow request (data, internal)
  n_workspace -->|"Question with scope token"| n_answer_api
  %% flow retrieve (data, confidential)
  n_answer_api -->|"Permission-filtered query"| n_index
  %% flow generate (data, confidential)
  n_answer_api -->|"Prompt with top passages"| n_gateway
  %% flow route (data, confidential)
  n_gateway -->|"Model call"| n_model
  %% flow record (data, confidential)
  n_answer_api -->|"Answer, citations, trace ID"| n_ledger
  %% flow respond (data, confidential)
  n_answer_api -->|"Cited answer or refusal"| n_workspace
  %% flow source-change (data, confidential)
  n_corpus -->|"New or changed document"| n_ingest
  %% flow index-write (data, confidential)
  n_ingest -->|"Chunks, embeddings, permission tags"| n_index
  %% flow telemetry (telemetry, operational)
  n_gateway -.-o|"Tokens, latency, cost"| n_traces
  %% flow replay (control, internal)
  n_evals -.->|"Replay frozen questions per release"| n_answer_api
  classDef people fill:#8AB4FF22,stroke:#8AB4FF,color:#0f1017
  classDef control fill:#B9A7FF22,stroke:#B9A7FF,color:#0f1017
  classDef intelligence fill:#5EE6CF22,stroke:#5EE6CF,color:#0f1017
  classDef knowledge fill:#FFC07A22,stroke:#FFC07A,color:#0f1017
  classDef assurance fill:#FF9FCB22,stroke:#FF9FCB,color:#0f1017