#613 Neil: Claude Prompt Rules That Make Fable 5.1 Work Much Better

Effective prompting requires transitioning from a "typist" mindset—where every minor step is dictated—to a "strategic director" role that defines clear destinations and strict guardrails. Over-explaining dilutes the model's attention, leading to conflicting constraints; instead, providing raw ingredients allows the AI to determine optimal execution. Calibrating compute effort is essential to prevent token drift, with medium settings often sufficing for standard logic while reserving max effort for complex blind spots. Integrating a self-verification block forces the model to adopt an editor persona, grounding its output in source documents to eliminate hallucinations. For massive tasks, orchestrating subagents enables parallel processing, where a main session synthesizes independent work streams into a coherent final result. This shift toward delegation and structural oversight significantly improves performance while minimizing resource waste and maximizing the capabilities of advanced models like Claude Fable 5.1.