Artifact Delivery for AI Agents: Files Customers Can Actually Use

A pattern for turning agent-generated files into signed, typed, downloadable artifacts.

Audience: Product teams whose agents create reports, spreadsheets, PDFs, patches, or evidence packs.

The problem

Agents often leave useful files inside a temporary workspace where the product cannot safely retrieve them.

Require outputs under /skill/output/artifacts, validate names and sizes, upload once at finalization, and return signed URLs in the result.

Artifact policy adds constraints, but gives customers reliable deliverables.

{ "filename": "audit-report.md", "content_type": "text/markdown", "size": 18342, "url": "https://..." }