Tip: Spawn Parallel Subagents to Map a Codebase From Several Angles at Once

Anthropic·medium signal

Instead of reading 30 files into your main thread, fan out concurrent subagents each with a focused prompt — 'where is config loaded,' 'how are tests run,' 'what does the build pipeline look like,' 'which files changed recently' — and consume their short summaries. Each subagent does the heavy reading in its own context, so the main session stays focused and you understand the system from multiple angles in roughly one round-trip.