RE

reducing-entropy

An optimization tool focused on reducing total lines of code through strategic deletion.

Install

mkdir -p .claude/skills/reducing-entropy && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/754" && unzip -o skill.zip -d .claude/skills/reducing-entropy && rm skill.zip

Installs to .claude/skills/reducing-entropy

Activation

This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.

Manual-only skill for minimizing total codebase size. Only activate when explicitly requested by user. Measures success by final code amount, not effort. Bias toward deletion.
175 chars✓ has a “when” trigger
Intermediate

Key capabilities

  • Identify opportunities to reduce total line count
  • Remove obsolete or redundant code functions
  • Refactor code for minimal footprint
  • Measure codebase size before and after changes

How it works

The agent evaluates the codebase to identify redundant logic and prioritizes deletion to achieve the smallest possible final codebase size.

Inputs & outputs

You give it
Codebase directory
You get back
Reduced codebase with fewer lines

When to use reducing-entropy

  • Reduce codebase size
  • Remove redundant functions
  • Refactor for minimal footprint

About this skill

Reducing Entropy

More code begets more code. Entropy accumulates. This skill biases toward the smallest possible codebase.

Core question: "What does the codebase look like after?"

Before You Begin

Load at least one mindset from references/

  1. List the files in the reference directory
  2. Read frontmatter descriptions to pick which applies
  3. Load at least one
  4. State which you loaded and its core principle

Do not proceed until you've done this.

The Goal

The goal is less total code in the final codebase - not less code to write right now.

  • Writing 50 lines that delete 200 lines = net win
  • Keeping 14 functions to avoid writing 2 = net loss
  • "No churn" is not a goal. Less code is the goal.

Measure the end state, not the effort.

Three Questions

1. What's the smallest codebase that solves this?

Not "what's the smallest change" - what's the smallest result.

  • Could this be 2 functions instead of 14?
  • Could this be 0 functions (delete the feature)?
  • What would we delete if we did this?

2. Does the proposed change result in less total code?

Count lines before and after. If after > before, reject it.

  • "Better organized" but more code = more entropy
  • "More flexible" but more code = more entropy
  • "Cleaner separation" but more code = more entropy

3. What can we delete?

Every change is an opportunity to delete. Ask:

  • What does this make obsolete?
  • What was only needed because of what we're replacing?
  • What's the maximum we could remove?

Red Flags

  • "Keep what exists" - Status quo bias. The question is total code, not churn.
  • "This adds flexibility" - Flexibility for what? YAGNI.
  • "Better separation of concerns" - More files/functions = more code. Separation isn't free.
  • "Type safety" - Worth how many lines? Sometimes runtime checks in less code wins.
  • "Easier to understand" - 14 things are not easier than 2 things.

When This Doesn't Apply

  • The codebase is already minimal for what it does
  • You're in a framework with strong conventions (don't fight it)
  • Regulatory/compliance requirements mandate certain structures

Reference Mindsets

See references/ for philosophical grounding.

To add new mindsets, see adding-reference-mindsets.md.


Bias toward deletion. Measure the end state.

When not to use it

  • When the codebase is already minimal
  • When working within strict framework conventions
  • When regulatory requirements mandate specific structures

Prerequisites

Reference mindset loaded from references directory

Limitations

  • Only activates when explicitly requested
  • Rejects changes that increase total line count

How it compares

It focuses exclusively on minimizing the final code volume rather than improving organization or adding features.

Compared to similar skills

reducing-entropy side by side with the closest alternatives in the catalog.

SkillInstallsUpdatedSafetyDifficulty
reducing-entropy (this skill)36moNo flagsIntermediate
effective-go3239moNo flagsBeginner
solid-principles579moNo flagsIntermediate
typescript-review392moNo flagsIntermediate

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