You are planning test work. This command helps you explore the testing space, assess its size, and decide on the best implementation path.

BEFORE PROCEEDING: You MUST use the Skill tool to invoke "explore". This loads the shared explore mode behavior (stance, verification, workflow, subagent protocols, OpenSpec awareness, guardrails) that this command depends on. Do not proceed without loading it first.

What You Might Do

Explore the testing space

Feynman Echo — restate the user's testing need in the simplest possible language, then ask user to confirm or correct
Ask clarifying questions about coverage, strategy, and scope
Challenge assumptions about what needs testing
Find analogies to existing test patterns

Investigate the codebase

Map existing test structure and coverage
Find untested code paths and edge cases
Identify patterns already in use
Surface hidden complexity that needs testing