ai-vision-mcp: Skill for Claude Code

.claude/skills/coding-standards/SKILL.md

coding-standards is a skill for Claude Code, Codex from tan-yong-sheng/ai-vision-mcp. It costs 28 tokens per session (2,925 once invoked), scanned A, a copy of coding-standards, MIT.

A set of shared coding rules for TypeScript, JavaScript, React, and Node.js projects.

In plain words
What is it for?
Use it when starting projects, reviewing or refactoring code, setting up linting and formatting, or documenting team conventions.
Why use it?
It reduces inconsistent naming, repeated code, unnecessary complexity, and disagreements about how code should be structured.

Skill for Claude CodeCodex

Written for Claude Code and Codex: installed under .claude/, but also agents/openai.yaml present.

This is tan-yong-sheng/ai-vision-mcp's own configuration. It tells Claude Code and Codex how to work on ai-vision-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ai-vision-mcp configures →

Part of the ai-vision-mcp plugin — 29 skills, 1 plugin shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to tan-yong-sheng/ai-vision-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/tan-yong-sheng/ai-vision-mcp/main/.claude/skills/coding-standards/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/tan-yong-sheng/ai-vision-mcp

Made for: Claude Code, Codex.

Or install ai-vision-mcp, the plugin that ships this one along with the rest of its 29 skills, 1 plugin.

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 coding-standards

README.md
[![agentmods](https://agentmods.dev/badge/skills/tan-yong-sheng/ai-vision-mcp/coding-standards/github.svg)](https://agentmods.dev/skills/tan-yong-sheng/ai-vision-mcp/coding-standards)
Your own site
<a href="https://agentmods.dev/skills/tan-yong-sheng/ai-vision-mcp/coding-standards"><img src="https://agentmods.dev/badge/skills/tan-yong-sheng/ai-vision-mcp/coding-standards/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 coding-standards

Your own site · 80×15
<a href="https://agentmods.dev/skills/tan-yong-sheng/ai-vision-mcp/coding-standards"><img src="https://agentmods.dev/badge/skills/tan-yong-sheng/ai-vision-mcp/coding-standards.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,925 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00028 $0.02925
Opus 5 $0.00014 $0.01463
Sonnet 5 $0.00006 $0.00585
Haiku 4.5 $0.00003 $0.00293

Measured 11d ago against content hash fa4c1decb10d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

coding-standards scanned grade A with 1 finding 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 11d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

const response = await fetch(url)
Origin

This is a copy

100% identical to coding-standards — 1,060 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.

.claude/skills/coding-standards/SKILL.md · 531 lines

How it starts

The opening of the file, as written. The whole thing — 531 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Coding Standards & Best Practices

Universal coding standards applicable across all projects.

When to Activate

  • Starting a new project or module
  • Reviewing code for quality and maintainability
  • Refactoring existing code to follow conventions
  • Enforcing naming, formatting, or structural consistency
  • Setting up linting, formatting, or type-checking rules
  • Onboarding new contributors to coding conventions

Code Quality Principles

1. Readability First

  • Code is read more than written
  • Clear variable and function names
  • Self-documenting code preferred over comments
  • Consistent formatting

2. KISS (Keep It Simple, Stupid)

  • Simplest solution that works
  • Avoid over-engineering
  • No premature optimization
  • Easy to understand > clever code

3. DRY (Don't Repeat Yourself)

  • Extract common logic into functions
  • Create reusable components
  • Share utilities across modules
  • Avoid copy-paste programming

4. YAGNI (You Aren't Gonna Need It)

  • Don't build features before they're needed
  • Avoid speculative generality
  • Add complexity only when required
  • Start simple, refactor when needed

TypeScript/JavaScript Standards

Variable Naming

// ✅ GOOD: Descriptive names
const marketSearchQuery = 'election'
const isUserAuthenticated = true
const totalRevenue = 1000

// ❌ BAD: Unclear names
const q = 'election'
const flag = true
const x = 1000

Function Naming

// ✅ GOOD: Verb-noun pattern
async function fetchMarketData(marketId: string) { }
function calculateSimilarity(a: number[], b: number[]) { }
function isValidEmail(email: string): boolean { }

// ❌ BAD: Unclear or noun-only
async function market(id: string) { }
function similarity(a, b) { }
function email(e) { }

Immutability Pattern (CRITICAL)

// ✅ ALWAYS use spread operator
const updatedUser = {
  ...user,
  name: 'New Name'
}

const updatedArray = [...items, newItem]

// ❌ NEVER mutate directly
user.name = 'New Name'  // BAD
items.push(newItem)     // BAD

Read the full file on GitHub · 531 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. 11d ago First seen · 531 lines · 28 tokens per session scan A fa4c1decb10d

Subscribe to this mod's changes

coding-standards is a skill published in the GitHub repository tan-yong-sheng/ai-vision-mcp (78 stars, last pushed 5mo ago), licensed MIT. It adds 28 tokens to every session and 2,925 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 100% identical to coding-standards, differing in 1,060 lines, and is treated as a copy.

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