research.weave

// research.weave
// Real tool-use. The researcher agent DECLARES a tool (web_search), so its soft
// call runs a ReAct loop: the model calls web_search as many times as it needs,
// Weave runs the real tool and feeds results back, then the agent answers.
//
// With --backend mock the model does not call tools (it just answers). With a
// real backend (claude/gemini) it actually drives the tool.

tool web_search(query: text) -> list<text>

agent researcher {
  model: claude
  tools: [web_search]
  retry: 2
}

flow research(topic: text) -> text {
  require topic != ""

  researcher("Research {topic} using web_search, then give the single most useful fact in one sentence.") -> finding: text

  ensure finding != ""
  ensure finding.length <= 200

  return finding
}