A guide for simplifying changed code and reviewing it for defects within a fixed set of files. It focuses on high-confidence changes while preserving the code's behavior and public interfaces.

Use it after code changes when asked to simplify, review, or do both. It is intended for files in a Git repository and excludes generated files, lockfiles, vendored code, and minified bundles unless requested.

It helps reduce unnecessary complexity and catch evidenced problems without expanding the review beyond the agreed scope. It also accounts for risk, exclusions, and verification.

code-polish — Skill for Claude Code and Codex by PaulRBerg

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 PaulRBerg/agent-skills --skill code-polish

Clone the repo

git clone --depth 1 https://github.com/PaulRBerg/agent-skills

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/paulrberg/agent-skills/code-polish/github.svg)](https://agentmods.dev/skills/paulrberg/agent-skills/code-polish)

Your own site

<a href="https://agentmods.dev/skills/paulrberg/agent-skills/code-polish"><img src="https://agentmods.dev/badge/skills/paulrberg/agent-skills/code-polish/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/paulrberg/agent-skills/code-polish"><img src="https://agentmods.dev/badge/skills/paulrberg/agent-skills/code-polish.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,323 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

Socket pass 25 Oct 2026
Snyk pass 6 Nov 2026
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.

Model	Per session	Once invoked
Fable 5.1	$0.00036	$0.01323
Opus 5.5	$0.00014	$0.00529
Sonnet 5.5	$0.00007	$0.00265
Haiku 4.5	$0.00004	$0.00132

Measured yesterday against content hash 2eacee4ec8e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-polish 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 yesterday.

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.

skills/code-polish/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Polish

Resolve scope once. Make only high-confidence simplifications. Fix defects supported by evidence according to their risk. Verify the final state.

Modes

--simplify: simplify only.
--review: review and fix only.
Neither or both: simplify, then review the simplified result.
--with-profile <name> / --skip-profile <name>: add or suppress review profiles. Skip wins.

Fixed Scope

Require a Git repository.
Use explicit paths, patterns, ranges, natural-language targets, or a supplied resolved-scope block when present. Otherwise, use only files modified in this session. If session history is unavailable, use all uncommitted tracked and untracked files.
Exclude lockfiles, generated outputs, vendored code, minified bundles, and large data snapshots from manual review unless explicitly requested. Validate relevant excluded outputs through their generator, schema, or invariants.
Resolve and retain one authoritative scope set and optional exclusions for execution. Do not broaden or recompute scope later. Stop if it is empty.

Simplify

Preserve public contracts, inputs, outputs, side effects, error behavior, performance-sensitive characteristics, telemetry, and operational guards. Apply only changes with a concrete comprehension or defect-risk benefit:

flatten avoidable control-flow nesting.
clarify misleading names or dense transforms.
remove real duplication when the abstraction reduces total complexity.
tighten local types and contracts without broad churn.
remove only dead code caused by this session's edits.

Do not split by line count, perform architecture cleanup, convert sync/async APIs, add speculative configurability, or replace readable duplication with a one-use abstraction. A no-op is a valid result.

Review and Fix

Judge the diff against the user's request. Prioritize CRITICAL → HIGH → MEDIUM → LOW:

CRITICAL: exploitable security, data loss, or critical outage path.
HIGH: behavior, error-path, boundary, or performance defect affecting core behavior.
MEDIUM: resource leak, complexity hotspot, test gap, over-scoped change, speculative complexity, or weak success criterion likely to cause defects.
LOW: localized clarity or style issue with a real maintenance cost.

Read the full file on GitHub · 110 lines

Files

What ships with it

13 files 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.

yesterday Changed · +1 lines 2eacee4ec8e5
4d ago Changed · +2 lines 6a9734afed1e
17d ago Changed 7a3998ea97f5
1mo ago Changed · +6 lines 3f0fc25e29f7
1mo ago Changed · +2 lines 61f361cf2752
1mo ago Changed · -1 lines a86a5f362cb7
1mo ago Changed · +3 lines 081730a18249
2mo ago First seen · 97 lines · 36 tokens per session scan A 88a5e2a9eb02

Subscribe to this mod's changes

code-polish is a skill published in the GitHub repository PaulRBerg/agent-skills (104 stars, last pushed 2d ago), licensed MIT. It adds 36 tokens to every session and 1,323 once invoked, about $0.0001 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 2026-08-30.

Code review agent-skills ai-agents

code-polish next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
code-polishPaulRBerg/agent-skills	Skill	104	2d ago	MIT	A	36	Claude Code, Codex
autoreviewopenclaw/clawhub	Skill	9.6k	today	MIT	A	17	Claude Code, Codex
agent-teams-simplify-and-hardenLeoYeAI/openclaw-master-skills	Skill	2.2k	3d ago	MIT	A	115	Claude Code, Codex
omh-code-reviewrlaope/oh-my-hermes	Skill	5.2k	today	MIT	A	49	Claude Code, Codex
revdiff-planumputun/revdiff	Skill	947	4d ago	MIT	A	84	Claude Code
explore-unknownsdzhng/skills	Skill	1.5k	today	MIT	A	162	Claude Code, Codex
re0-mergeLilMGenius/paperthin	Skill	1.4k	today	MIT	A	70	Claude Code