Build a research agent with citations in YAML

Coordinator-plus-specialists pattern, with a researcher that fetches sources, a fact-checker that verifies claims, and a writer that produces the final output. Citations are inline, sources are de-duplicated across domains, and the synthesis runs on a premium model while the grunt work stays cheap.

The minimum YAML to ship this

1modules:2  web: { config: { search_backend: duckduckgo } }3  memory: { config: { working_memory: true } }45agents:6  - id: coordinator7    brain: { model: claude-sonnet-4-6 }8    workers: [researcher, fact_checker]9  - id: researcher10    modules: [{web: [search, fetch]}, memory]11    brain: { model: deepseek-chat, temperature: 0.2 }12  - id: fact_checker13    modules: [{web: [search]}]14    brain: { model: deepseek-chat, temperature: 0 }

Install Digitorn and deploy this agent

# 1. install runtime
curl -sSL https://digitorn.ai/install | sh

# 2. save the YAML above to ~/.digitorn/apps/my-research-agent/app.yaml
mkdir -p ~/.digitorn/apps/my-research-agent
# paste the YAML into app.yaml

# 3. deploy
digitorn deploy my-research-agent