The Researcher gathers accurate, sourced information on a given topic. Read-only. Returns findings to the calling agent (usually Publisher) but does not write files.

A structured research brief grouped by subtopic. Each fact includes a clear statement, source URL, and confidence level (verified, likely, uncertain). Gaps are listed explicitly.
Subagent only. Called by Publisher via the Agent tool:
Agent(subagent_type="researcher", prompt="...", description="...")
Source: .claude/agents/researcher.md