code-optimization

code-optimization is a skill for Claude Code, Codex from jnPiyush/AgentX. It costs 65 tokens per session (2,300 once invoked), scanned A, original, Apache-2.0.

A method for simplifying working code while keeping its behavior, safety checks, tests, and readability intact.

In plain words
What is it for?
Use it to shorten or simplify an over-engineered function, file, or small module, then verify that the result still works.
Why use it?
It removes dead code, needless branches, and abstractions that make code harder to follow without adding value.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to shorten or simplify an over-engineered function, file, or small module, then verify that the result still works.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jnpiyush/agentx/code-optimization
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 jnPiyush/AgentX --skill code-optimization
Clone the repo
git clone --depth 1 https://github.com/jnPiyush/AgentX

Made for: Claude Code, Codex.

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-optimization

README.md
[![agentmods](https://agentmods.dev/badge/skills/jnpiyush/agentx/code-optimization/github.svg)](https://agentmods.dev/skills/jnpiyush/agentx/code-optimization)
Your own site
<a href="https://agentmods.dev/skills/jnpiyush/agentx/code-optimization"><img src="https://agentmods.dev/badge/skills/jnpiyush/agentx/code-optimization/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-optimization

Your own site · 80×15
<a href="https://agentmods.dev/skills/jnpiyush/agentx/code-optimization"><img src="https://agentmods.dev/badge/skills/jnpiyush/agentx/code-optimization.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,300 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found 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 $0.00065 $0.02300
Opus 5.5 $0.00026 $0.00920
Sonnet 5.5 $0.00013 $0.00460
Haiku 4.5 $0.00006 $0.00230

Measured 20d ago against content hash 12aee280c4bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-optimization 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 20d 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.

.github/skills/development/code-optimization/SKILL.md · 226 lines

How it starts

The opening of the file, as written. The whole thing — 226 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Optimization

Purpose: Turn correct-but-verbose code into the smallest, clearest correct version -- lower cyclomatic complexity, fewer branches, no dead weight, no abstractions that earn nothing. Scope: Behavior-preserving rewrites of a function, file, or small module.

HARD RULE: Minimal is a means, not the goal. The goal is the simplest code that is still correct, safe, and readable. Line count is a signal, never a target. NEVER trade away correctness, boundary validation, tests, public API shape, or human readability to win lines. If a rewrite makes the code shorter but harder to read or less safe, it is a regression, not an optimization.


When to Use

  • A function or file is verbose, over-nested, or over-abstracted and you want it tighter
  • The user asks to "compress", "minimize", "simplify", "make elegant", or "reduce LOC"
  • Post-implementation pass to remove accidental complexity before review
  • A single-use interface, wrapper, or config object is adding indirection with no payoff

When NOT to Use

  • The code is already minimal and clear -- stop; do not code-golf for its own sake
  • Correctness or behavior is in doubt -- fix and test first, optimize second
  • Hot-path performance tuning -- use Performance; fewer lines != faster
  • Public API or library surface others depend on -- shrinking the surface is a breaking change, not an optimization

Where This Fits Among Sibling Skills

Skill Job This skill differs by
scrub Remove presentation slop (comment rot, filler, dead code) Transforms logic into a tighter shape, not just cleanup
code-hygiene Detect and report over-engineering Rewrites the code to its minimal form
karpathy-guidelines Behavioral rules (simplicity, surgical changes) Applies those rules as a concrete transformation loop
core-principles SOLID / DRY / KISS / YAGNI theory Operational catalogue + metrics to act on them

Read the full file on GitHub · 226 lines

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. 20d ago Changed 12aee280c4bc
  2. 1mo ago Changed a5a72163038a
  3. 1mo ago First seen · 226 lines · 65 tokens per session scan A 1ce5356539c0

Subscribe to this mod's changes

code-optimization is a skill published in the GitHub repository jnPiyush/AgentX (16 stars, last pushed 3d ago), licensed Apache-2.0. It adds 65 tokens to every session and 2,300 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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