SSci Orchestrator — Route the Study, Hold the Passport, Enforce the Gates

Skill type: DISCIPLINE-ENFORCING (thin coordinator). This is the conductor of the social-science methods spine. It does no analysis. It walks a study through the gates in order, carries a single Design Passport between them, and refuses to let a stage run before its prerequisite gate has passed. For the actual routing/refusal logic, each gate owns its own skill; this skill owns sequence and hand-off.

The Core Rule

NO STAGE RUNS BEFORE ITS GATE PASSES. THE PASSPORT IS THE SINGLE SOURCE OF TRUTH.

A methods pipeline fails when stages run out of order — sampling sized before the design is fixed, a causal estimator run before the identifying assumption is pinned, a discussion written before the claim is audited. The orchestrator makes the order non-optional and makes every gate's verdict visible in one artifact.