Breadth Reader
Read-only skill for exploring/reviewing/summarizing large data sources.
When to Use
Single-verb breadth tasks:
- •"explore ~/dev/project/"
- •"review the code in src/"
- •"summarize all files in docs/"
Behavior
- •Runs in forked context (isolated from main agent)
- •Claude auto-optimizes parallelism internally
- •Returns summary only to main agent
- •No orchestration overhead
Parallel Exploration
For large data sources, spawn multiple Explore subagents (Haiku, cheap, fast):
- •
subagent_type: Explorewith thoroughness: quick/medium/thorough
Output
Return a structured summary. Do NOT return raw file contents.