Run a performance calibration session

Help me run a performance calibration session.
Inputs: team size; rating scale; review cycle.

1. Align level definitions and evidence standards.
2. identify severity, recency and impression biases.
3. record disagreements, further checks and communication ownership.

Deliver: Purpose and ground rules, Pre-work, Rating definitions, Agenda and discussion order, Bias checks, Decision record, After the session.
Clarify critical gaps, separate facts from assumptions, and do not invent data, citations or completed actions.

My material: [fill in here]

Before you start

Provide team size; rating scale; review cycle.