Vendor craft
Lab-specific habits that sharpen Claude, GPT, Grok, Gemini, and open models.
Soft lockYou can read this circuit. Practice in Studio requires Pro or Studio — Foundation stays free.
See Pricing →01
XML delimitingTag role, objective, constraints, and format for Claude.
Plate →Practice locked02
System / user separationKeep durable rules in SYSTEM; put the live request in USER.
Plate →Practice locked03
Direct labeled blocks (Grok)Short plain-language Role / Goal / Constraints / Format blocks — Grok-aligned structure.
Plate →Practice locked04
PTCF framingPersona → Task → Context → Format — Gemini-aligned structure.
Plate →Practice locked05
Explicit formats (open models)Open / Llama models need blunt structure and fewer implied norms.
Plate →Practice locked