Agent Contract

The closing error-format block of an agent's own ## Input Validation section — every phase agent still writes its own required-inputs table above it; only this fixed closing block moves here.

Missing-Input Error Format

Invoked with one parameter the calling agent states inline: {agent-name} (the same slug as that agent's own frontmatter name:, e.g. pm-agent).

Error format:

🚨 AGENT ERROR — {agent-name}
Missing: [field]
Why it matters: [brief reason]
Action required: [what must be provided]
⛔ This agent cannot continue until the missing input is supplied.