Bulletproof

Use when building a feature, refactoring, fixing a complex bug, changing architecture, or starting any non-trivial coding task. 12-stage verified dev workflow from research to deploy.

152 stars 28 forksSoftware Development

Install

skills CLI (Claude Code, Cursor, Codex and more)
npx skills add artemiimillier/bulletproof --skill bulletproof
Manual install
git clone --depth 1 https://github.com/artemiimillier/bulletproof.git /tmp/bulletproof
mkdir -p ~/.claude/skills
cp -r /tmp/bulletproof/. ~/.claude/skills/bulletproof

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# Bulletproof — Adaptive Development Workflow

> **Author:** Artemiy Miller ([@artemiimillier](https://github.com/artemiimillier)) · [Telegram](https://t.me/artemiymiller) · [who.ismillerr@gmail.com](mailto:who.ismillerr@gmail.com) · [TG Channel](https://t.me/+0jZamDvGOeZjOWE1)
> **Version:** 5.0 · March 2026
> **License:** MIT
> **Compatible:** Claude Code, Codex, Gemini CLI, Cursor, Windsurf, OpenCode

## Core Principle

**Code to solve problems, not code for code's sake.**

Before EVERY change ask: "Does this actually solve our problem? Is this the most efficient solution?"
If the answer isn't clear — stop, research alternatives, pick the best one.

---

## Pick Your Mode

Not every task needs the full pipeline.

| Size | Examples | Mode | Stages |
|------|----------|------|--------|
| **S** | Bug fix, small edit, 1-2 files | Lightweight | 1 → 4 → 5 → 6 → 7 → Gates (skip spec/plan) |
| **M** | New feature, module refactor, 3-10 files | Standard | Stages 1-10 |
| **L** | Architecture change, new service, 10+ files | Full | Stages 1-12 (all) |

**How stages relate:** Stages 5-6-7 (Self-Audit, Verification, Impact) run **inside each implementation phase** as an inner loop. Stages 8-12 run **once after all phases complete** as an outer loop.

---

## Context Management (ALWAYS applies)

### The 40% Rule
Code quality degrades when context fills beyond 40% ("Dumb Zone"). Rules:
- Stay within 40-60% of the context window
- Manual `/compact` at 50% — don't wait for auto
Read the full skill on GitHub

Details

Skill name
bulletproof
Repository
artemiimillier/bulletproof
License
MIT
Repo updated
21 March 2026

FAQ

What does the Bulletproof skill do?

Use when building a feature, refactoring, fixing a complex bug, changing architecture, or starting any non-trivial coding task. 12-stage verified dev workflow from research to deploy.

How do I install the Bulletproof skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add artemiimillier/bulletproof --skill bulletproof. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Bulletproof popular?

It lives in artemiimillier/bulletproof, which has 152 GitHub stars and 28 forks.

Related skills

Spec Driven Development

156

FredAntB/Spec-Driven-Development

Use this skill to scaffold Spec Driven Development: requirements.md, design.md, tasks.md, and cross-compatible AI config files (CLAUDE.md, .cursorrules, .windsurfrules, .github/copilot-instructions.md). Triggers: 'requirements', 'spec', 'design doc', 'tasks', 'CLAUDE.md', 'cursorrules', 'SDD', 'spec driven', 'AI configuration', 'cross-AI', 'multi-agent', 'agent setup'. Also trigger for: 'set up my AI tools', 'keep agents consistent', 'stop AI going off-script', 'plan before coding', 'structure project for AI'. Retrofit triggers: 'document my system', 'document my codebase', 'describe my archit

Software Development18

Software Certificate Skill

173

IvanCodesDev/software-certificate-skill

面向普通用户，从真实软件项目全自动生成中国软件著作权申请资料：一次收集登记事实，自动分析业务、选择可追溯源码、取得真实界面证据，生成申请表信息、规范黑白灰操作手册、代码前后30页或全部材料及真实 DOCX/PDF；内部验证、渲染、哈希与备份只进入系统临时运行区，项目最终仅保留正式资料。适配 Codex、Claude Code、Cursor、OpenCode、WorkBuddy、QoderWork、TraeWork 及支持 Agent Skills 或 AGENTS.md 的平台。用户提到软件著作权、软著申请资料、申请表、代码材料、操作手册或软著审查时使用。

Software Development12

Senior Engineering Partner

154

bjgreenberg/senior-engineering-partner

A strict code reviewer, pair programmer, debugger, and mentor for Python, Bash, Google Apps Script, JavaScript, and Swift/Apple platforms. Use when writing, reviewing, debugging, planning, or securing code, or for senior-level rigor, a security review, or mentoring. Mode triggers — REVIEW: (critique + refactor), EXPLAIN: (teach), MVP:/PROTOTYPE: (lean-but-safe), DEBUG: (root-cause), AUDIT: (report-first); default is pair-programming. Drives a spec→plan→TDD→verify loop with a deterministic-first, verify-before-asserting (anti-hallucination) discipline. Enforces a security floor (secrets, inject

Software Development17

Design Doc Mermaid

179

SpillwaveSolutions/design-doc-mermaid

Create Mermaid diagrams (flowchart, sequence, class, ER, state, C4, architecture) from text or source code. Default for GitHub wiki. Use when asked to create a diagram, generate mermaid, document architecture, or convert code to diagram. PlantUML is only for leftover types. Confluence needs PNG/SVG as well as the fence.

Software Development24

Socratic

131

m4vic/socratic

This skill should be used when the user asks to "build", "design", "scaffold", "architect", or "plan" any system, feature, service, app, agent, pipeline, connector, or tool — especially when the request is short, vague, or underspecified. It should also be used when the user asks to "review this architecture", "what am I missing", "ask me the right questions", "poke holes in this", or requests a design review before implementation. The skill interrogates the design silently across the relevant engineering domains (requirements, frontend, backend, data, API, security, infra, testing, observabil

Software Development19

Superior Trade Auth

218

Superior-Trade/superior-skills

Use when an agent needs to register a Superior Trade account, verify an email OTP, configure x-api-key authentication, or recover from missing or invalid credentials before using the Unified API.

Software Development

Browse the most popular Claude skills, all software development skills, or write your own with the skills generator.