code-simplification

code-simplification is a skill for Claude Code, Codex from OutlineDriven/odin-claude-plugin. It costs 31 tokens per session (1,442 once invoked), scanned A, a copy of code-simplification, Apache-2.0.

A workflow for making a named piece of code shorter, less repetitive, or easier to read while keeping its behavior.

In plain words
What is it for?
It helps remove duplication, simplify conditions, extract or combine code, and improve readability.
Why use it?
It limits cleanup to the selected code and checks that the change does not alter what the code does.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present.

Part of the odin-code plugin — 60 skills shipped together

Good fit It helps remove duplication, simplify conditions, extract or combine code, and improve readability.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/outlinedriven/odin-claude-plugin/code-simplification
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add OutlineDriven/odin-claude-plugin --skill code-simplification
Clone the repo
git clone --depth 1 https://github.com/OutlineDriven/odin-claude-plugin

Made for: Claude Code, Codex.

Or install odin-code, the plugin that ships this one along with the rest of its 60 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for code-simplification

README.md
[![agentmods](https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/code-simplification/github.svg)](https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/code-simplification)
Your own site
<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/code-simplification"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/code-simplification/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for code-simplification

Your own site · 80×15
<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/code-simplification"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/code-simplification.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,442 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00031 $0.01442
Opus 5.5 $0.00012 $0.00577
Sonnet 5.5 $0.00006 $0.00288
Haiku 4.5 $0.00003 $0.00144

Measured 1mo ago against content hash b7d8f7fa8bf6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-simplification scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to code-simplification — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/odin-code/skills/code-simplification/SKILL.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code simplification

Two modes share one authority: reversible local edits to a named target, no new public surface, behavior preserved. Measured mode proves reduction with the test suite; clarity mode proves preservation by reasoning over the recorded behavior contract.

Contract

Field Bound contract
Trigger User asks to simplify, clean, refactor, or improve the readability of code, or review flags bloat beyond the current diff.
Authority Reversible local: writes only the named target (may refactor, extract, inline, and collapse conditionals; may not add new public surface or edit files outside the target); rollback is version control or undo. No remote mutation.
Side effect Refactoring edits to the named target only; no new public surface.
Done Mode-specific done predicate holds (see each mode); behavior is preserved by tests (measured) or by recorded-contract reasoning (clarity).

Inputs

  • Target (required): the file, module, function, or range to simplify. Named by the user.
  • Test command (required for measured mode): the command that runs the test suite proving behavior preservation.
  • Bloat signal (optional, measured mode): a review-flagged duplication hotspot or branch-complexity concern to prioritize. If absent, measure duplication and branch complexity on the target.
  • Constraints (optional, clarity mode): behavior that must stay identical (public signatures, outputs, side effects, ordering). Infer these from the code when omitted.

Mode selection

User says Mode Gate
simplify, clean, debloat, reduce duplication or complexity, review flagged bloat measured Test suite green and bloat signal lower than baseline
simplify for readability, clean up, refactor for clarity, make this clearer clarity Recorded behavior contract unchanged after each edit

When the user names a test command or a bloat signal, use measured mode. When the user names only a readability goal and no test command, use clarity mode. When both are supplied, use measured mode and prefer clarity-preserving candidates.

Read the full file on GitHub · 69 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago Changed · -25 tokens per session b7d8f7fa8bf6
  2. 1mo ago First seen · 69 lines · 56 tokens per session scan A c01cf111dd93

Subscribe to this mod's changes

code-simplification is a skill published in the GitHub repository OutlineDriven/odin-claude-plugin (37 stars, last pushed 21d ago), licensed Apache-2.0. It adds 31 tokens to every session and 1,442 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to code-simplification, differing in 0 lines, and is treated as a copy.

Related

Other skills, from other repositories

local-ai-agents

Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…

microsoft/ai-agents-for-beginners · 200 tokens

next-cache-components-adoption

Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…

vercel/next.js · 95 tokens

chat-pet-sprite-creation

Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.

microsoft/vscode · 53 tokens

cpu-profile-analysis

Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…

microsoft/vscode · 71 tokens

insight-error-page

Write or audit an insight-kind error page for the Next.js dev overlay. Use when creating a new errors/ .mdx page, auditing an existing one, or checking that a page matches the framework fix cards. Covers page structure, title alignment, FixCard cards with Copy prompt button, code snippets, terminology verification…

vercel/next.js · 83 tokens

next-cache-components-optimizer

Optimize the meaningful UI available immediately from a Next.js route on an initial load (hard navigation) or named client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route and entry point at a time; the shipped test then guards…

vercel/next.js · 123 tokens