Search conversation history to avoid reinventing solutions and inform architectural decisions.

• Dispatch the search-conversations subagent to query past conversations; the agent synthesizes results into actionable insights with sources
• Use after understanding the task when facing "how should I..." questions, architectural decisions, or unfamiliar workflows
• Activate when stuck on complex problems, following past patterns, or when user references previous work or decisions
• Avoid searching for current codebase structure or information already in the active conversation; explore code first with grep or read tools