Explicit specification of what the model must not do. The "Guardrails" slot of the Three-Constraint Rule, treated as a first-class constraint rather than an afterthought. Negative Prompting defines the negative space that shapes the output as precisely as any positive instruction.
The Agent Control Architecture Pack includes deployable system prompts, AGENTS.md templates, and fully-worked BYOP rebuilds that operationalise every precision term.
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