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Code Simplifier

Use this skill to refine code for clarity, consistency, and maintainability without changing what it does.

Scope

• Focus on files changed in the current session or the user's explicitly named files.
• Preserve all behavior, public APIs, outputs, data formats, and side effects.
• Follow the nearest AGENTS.md and existing project style before applying general preferences.
• Keep changes surgical. Do not refactor unrelated old code.
• Prefer readable, explicit code over clever or highly compressed code.

Workflow

1. Inspect the current diff and nearby code before editing.
2. Identify simplifications with a clear payoff:
   • reduce unnecessary nesting or branching
   • remove duplication introduced by recent edits
   • inline single-use abstractions that obscure intent
   • split code only when it creates a clearer boundary
   • improve names when they clarify purpose
   • remove comments that only repeat obvious code
3. Skip changes that are only stylistic, risky, or hard to prove behavior-preserving.
4. Apply the smallest coherent patch.
5. Run the narrowest relevant verification command. Broaden verification when shared behavior changed.
6. Report what changed and what was verified.

Guardrails

• Do not add features, options, new dependencies, or speculative flexibility.
• Do not change error messages, serialization, ordering, timing, permissions, or external calls unless the user asked.
• Do not convert clear conditionals into nested ternaries or dense one-liners.
• Do not remove helpful abstractions just to reduce line count.
• Do not rewrite an entire module when a local simplification is enough.
• Do not claim behavior is preserved without fresh verification evidence.

Good Targets

Signal	Useful Simplification
Repeated blocks from recent edits	Extract or consolidate only the repeated intent
Deep if nesting	Use early returns or clearer branching
Temporary variables with unclear names	Rename to describe domain meaning
Single-use wrapper function	Inline it if it hides more than it helps
Comments narrating code	Remove or replace with a reason-oriented comment

Stop Conditions

Stop and ask before editing when behavior preservation depends on product intent, undocumented compatibility, or unclear external contracts. If verification cannot be run, say exactly what was not verified.