Find works across the open bibliographic sources, with failover by role.

Walks Crossref -> OpenAlex -> PubMed -> OpenAIRE until one answers. A source that is rate limited is skipped, not retried: the response reports which sources refused and why, so a thin result is visibly thin.

Args: query: search terms. limit: max results (keep modest; the budget is shared across agents). prefer: force a source to the front, e.g. "pubmed" for biomedical work.

Retrieve and STORE the body of a work, so its depth becomes verifiable.

Tries the native readers first (arXiv PDF, Europe PMC full-text XML), then resolves the DOI through Unpaywall to a legal open-access copy. The stored file is the proof: read_depth reports full-text only when bytes exist on disk. Returns metadata-only depth without complaint when no OA copy exists — that is an honest outcome, not a failure.

Show the shared request budget: which hosts are usable, which are cooling down.

This is the fleet view. When a source shows blocked_hours, every agent in every process is blocked on it — switch source instead of waiting.

Catalogue of sources and what each one is actually good for.

Roles are not interchangeable: finders locate a DOI, the opener resolves it to a legal copy, readers give you the body. Picking by role is what makes failover work.

Attach an evidence tier to a claim, under the discipline that guards it.

Tier A requires at least the abstract to have been retrieved — asserting RCT-strength from a title alone is rejected here rather than caught later. Tier D is a RECORDED refusal: it demands refused_reason, so a rejected idea leaves a trace instead of vanishing.

Write the run into the ~/ricerche archive as a versioned, schema-valid record.

Closes the loop the archive exists for: research that stays in a transcript gets lost. Copies any stored full text into the record's sources/ and regenerates the index.

Will REFUSE status: falsified — declaring something dead in a durable artifact is the research owner's decision, not the tool's.