02— Play
Small tools. Sharp lessons.
Playgrounds are small, focused tools that isolate one design lever at a time. Each one produces an artifact you can download.
01Open
Diff mode
Run one prompt through two configurations side-by-side. The fastest way to feel how prompts shape outputs.
Produces — Diff LogOpen →
02Open
Tone dial
Treat style as a design token. Move dials for warmth, verbosity, energy, directness — see the prompt compose itself.
Produces — Behavior SpecOpen →
03Open
Persona workshop
Design a character — backstory, beliefs, blind spots — and watch the model embody them.
Produces — Persona CardOpen →
04Open
Refusal lab
Probe boundary design with a panel of edge cases. Tune the line between over- and under-refusal.
Produces — Refusal ScorecardOpen →
05Open
Eval workshop
Rubric-based evaluation. Define what good looks like, score the model against it, watch the average move.
Produces — Eval Rubric + ScorecardOpen →
06Open
Conversation choreographer
Multi-turn flow design. Script the user's turns, run the conversation end-to-end, watch the model hold the thread.
Produces — Behavior SpecOpen →