# Principles

When a situation below occurs, including during an ongoing task,
read the referenced skill in full and apply it without waiting to be asked.

In your final reply, name each principle that changed a decision and
state the concrete choice it changed. Name only principles whose
SKILL.md you read in this session. Omit principles that changed nothing.

- **Prove It Works.** Before declaring a task done, verify the changed
  behavior through the real artifact. Read
  `.agents/skills/principle-prove-it-works/SKILL.md`.