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Assemble a reviewable first version of an analytics agent's context from what a data stack already has: a warehouse schema export, a dbt project, docs, dashboards, query logs. Produces a Cassis ontology tree (domain READMEs, table and metric YAML, joins) with the evidence behind every claim attached and unresolved meaning filed as questions. Scripts do everything the inputs determine; the user decides at four checkpoints. Runs fully offline: no account, no key, no network. Optional dbt write-back merges descriptions into the project's own schema.yml files without overwriting anything already there. Use when asked to "bootstrap an ontology", "build context for an analytics agent", "document the warehouse for AI", "turn our dbt project into an ontology", or "make our data agent-ready".

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