claude-code-dev

claude-code-dev is a skill for Claude Code, Codex from Leanmcp/superview.sh. It costs 101 tokens per session (766 once invoked), scanned A, original, MIT.

A development style guide for modifying Claude Code, a command-line coding assistant built with TypeScript and terminal-based interface tools.

In plain words
What is it for?
Use it when adding or changing Claude Code tools, commands, utilities, interface components, hooks, services, or bug fixes.
Why use it?
It helps contributors follow the codebase’s existing organization, naming, imports, and implementation patterns.

Skill for Claude CodeCodex

About the project

superview.sh is a dashboard for viewing detailed Claude Code logs, including requests, files read, and token usage. It is used by developers who want visibility into what their coding agent does.

Leanmcp/superview.sh · 2,114 stars · on GitHub

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.

agentmods
npx agentmods add skills/leanmcp/superview.sh/claude-code-skills
Any agent
npx skills add Leanmcp/superview.sh --skill claude-code-skills
Clone the repo
git clone --depth 1 https://github.com/Leanmcp/superview.sh

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 claude-code-dev

README.md
[![agentmods](https://agentmods.dev/badge/skills/leanmcp/superview.sh/claude-code-skills.svg)](https://agentmods.dev/skills/leanmcp/superview.sh/claude-code-skills)
Your own site
<a href="https://agentmods.dev/skills/leanmcp/superview.sh/claude-code-skills"><img src="https://agentmods.dev/badge/skills/leanmcp/superview.sh/claude-code-skills.svg" alt="Measured on agentmods" height="20"></a>
Per session 101 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 766 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00101 $0.00766
Opus 5 $0.00051 $0.00383
Sonnet 5 $0.00020 $0.00153
Haiku 4.5 $0.00010 $0.00077

Measured 5d ago against content hash 53315382d360, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

claude-code-dev 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 5d 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.

claude-code-skills/SKILL.md · 34 lines

How it starts

The opening of the file, as written. The whole thing — 34 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Claude Code Development Style Guide

This skill captures the programming style, patterns, and conventions used in the Claude Code codebase (@anthropic-ai/claude-code). Each topic below links to a dedicated deep-dive document with comprehensive examples and rules extracted from the actual source.

Summary

Claude Code is an ESM TypeScript Node.js CLI application using Ink (React for terminals) for its UI, esbuild for transpilation, and Bun internally for feature flags and dead code elimination. Key stack: TypeScript, Zod v4, lodash-es, React/Ink, esbuild.

Detailed Guides (Resource Files)

Each topic below is covered in depth in its own resource file within this skill's directory. Read the relevant file before working on that area of the codebase.

# Topic File Summary
01 Project Overview 01-project-overview.md Tech stack, build system, runtime environment, key dependencies
02 Directory Structure 02-directory-structure.md Full src/ layout, file organization patterns, where things go
03 Import Conventions 03-import-conventions.md .js extensions, import type, lodash cherry-picks, feature flags, cycle breaking
04 Naming Conventions 04-naming-conventions.md camelCase/PascalCase/UPPER_SNAKE rules, file naming, safety names
05 TypeScript Patterns 05-typescript-patterns.md Branded types, discriminated unions, as const, satisfies, Zod schemas, generics
06 Commenting Style 06-commenting-style.md JSDoc, why-not-what philosophy, PR references, section headers, lint suppression
07 Error Handling 07-error-handling.md Custom error classes, utility functions, graceful degradation, catch conventions
08 Function Patterns 08-function-patterns.md buildTool() factory, memoize, async generators, guard clauses, fire-and-forget
09 Tool Architecture 09-tool-architecture.md Tool directory structure, buildTool() API, schemas, permissions, UI rendering
10 Command Architecture 10-command-architecture.md Command types, index.ts pattern, lazy loading, registration
11 State Management 11-state-management.md Module-level state, getter/setter, AppState threading, cleanup registry
12 Testing Conventions 12-testing-conventions.md Reset helpers, NODE_ENV guards, test-only exports, deterministic sorting
13 Formatting Rules 13-formatting-rules.md No semicolons, single quotes, trailing commas, indentation, expression style
14 Quick References 14-quick-references.md Step-by-step checklists for adding tools, commands, utils, and types

Read the full file on GitHub · 34 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. 5d ago First seen · 34 lines · 101 tokens per session scan A 53315382d360

Subscribe to this mod's changes

claude-code-dev is a skill published in the GitHub repository Leanmcp/superview.sh (2,114 stars, last pushed 5mo ago), licensed MIT. It adds 101 tokens to every session and 766 once invoked, about $0.0005 per session on Opus 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.

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