Every card below is generated from one machine-readable source, mcp/showcase-prompts.json; this page holds no second copy of the prompt text. Each prompt crosses a set of doorways and ends at a surface that verifies without us: your own SHA-256 recompute, an independent Groth16 verifier, or an OpenTimestamps anchor. Copy a prompt, run it by hand, or hand it to any MCP-capable agent.
Four demonstrations of the core claim: the same math, provable, in your browser and at the edge.
Four full-text personas: a protocol researcher, a workforce evaluator, an agent builder, and an instructor.
Short prompts for one-off decisions: an offer, a layoff, a mandate you were sent.