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Stage 3 design pack

Everything the agent got at stage 3 of the MCP benchmark: a nine-screen brief with every word written out, a palette and font, and 14 images with alt text. The same pack went to Coassemble, Evolve, Mindsmith and Parta. Stages 1 and 2 used the fact sheet and the short prompts below.

The 14 images

Each one vetted before the test. Click for the full-size file the agent received.

The prompts

Shown for Evolve. The other tools' prompts are identical except for the tool's name.

Files

• design-brief.md (the brief as the agent read it)
• lightning-safety.pdf (OSHA and NOAA fact sheet FS-3863, the source for every stage)
• Everything on GitHub (prompts for all four tools, images, brief)

The brief