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Reasoning scaffolds pack — worked-example traces, counterexample hunts, invariants, options enumeration. Use when writing algorithms, recursion, parsers, state machines, index math, or choosing between design approaches.

From plugin
fableclaudemdforopus
718 skills5 hooks

Claude Code

$ npx -y skills add altafino/FableClaudeMDForOpus --skill kit-reasoning --agent claude-code

SKILL.md

kit-reasoning.SKILL.md
name: kit-reasoning
description: Reasoning scaffolds pack — worked-example traces, counterexample hunts, invariants, options enumeration. Use when writing algorithms, recursion, parsers, state machines, index math, or choosing between design approaches.

Read and apply to the current task, citing rule IDs with one line of evidence as they fire:

  • docs/guardrails/REASONING.md — RE1–RE4 (trace before code, counterexample after, invariant comment, explain-then-code)
  • docs/guardrails/PLAN.md — P10 (OPTIONS artifact for any decision with 2+ plausible shapes)
  • docs/guardrails/TRAPS.md — the computed loop/slice/range bounds trace row
@altafino
Ships withfableclaudemdforopus

A portable CLAUDE.md + documentation set that makes Claude Opus / Sonnet operate as close to frontier (Fable) level as possible inside Claude Code: fewer logic errors, fewer introduced bugs, fewer wasted tokens.

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Questions about kit-reasoning.

Which coding agents can use kit-reasoning?
kit-reasoning installs in Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and Windsurf with the skills CLI, using each agent's flag shown on this page. Flowy's auto-invocation, which fires a skill when your prompt matches, runs in Claude Code only.