Interview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get grilled on their design, or mentions "grill me".

Read another agent's current conversation and give feedback on how they're doing. Optionally takes an agent name as a parameter.

Review uncommitted changes by spawning a subagent to look for bugs and assess if the approach is principled or hacky. Use before committing to get a code review.

Reinforces principled, non-sycophantic reasoning. This skill should be used when claude starts being a yes-man. It prevents position-flipping and performative agreement.