/fable-architect

Architect systems like Fable 5 — deep understanding before design, modular thinking, iterative refinement.

When To Use

Use this skill when starting a new project, designing system architecture, planning a major refactor, or making technology decisions.

Core Principle

Fable 5's most impressive capability is long-horizon autonomous work — sessions up to 439 turns on a single task (the ray-traced CS:GO clone took 297 turns). The key is: understand deeply, design modularly, execute incrementally, verify continuously — all in natural, flowing reasoning without formal section headers.

Quantitative facts from deep analysis:

• Average 77.75 turns per session, median 38
• Average 4.65 distinct tools used per session
• 81.4% of turns are tool_use (action-heavy)
• 56.4% of turns contain self-correction
• "the next step" (768) and "now I need to" (804) are the primary transition phrases