Make AI Code Like a
Senior Engineer
Stop AI from generating junior-level, insecure, untested, poorly-architected slop. 10 composable skills that work with Claude, Cursor, Copilot, Windsurf & Codex.
10 Skills. Zero Slop.
Each skill is a dense, actionable SKILL.md file that transforms your AI agent into an expert in that domain.
Architect
System design, Clean Architecture, DDD, bounded contexts, microservices vs monolith decisions, scalability patterns.
Code Quality
SOLID principles, design patterns, code smells detection, naming conventions, function size limits, clean code enforcement.
Testing & TDD
TDD red-green-refactor, test pyramid enforcement, edge case generation, mocking discipline, property-based testing.
Security
OWASP Top 10, input validation, auth/authz patterns, secrets management, CORS/CSP headers, rate limiting.
Performance
Big-O complexity awareness, N+1 prevention, caching strategies, async patterns, profiling-first optimization.
DevOps
CI/CD pipelines, Infrastructure as Code, container best practices, observability, GitOps, graceful shutdown.
Database
Schema design, zero-downtime migrations, indexing strategy, query optimization, transaction isolation levels.
API Design
REST maturity model, HTTP method semantics, status codes, pagination, versioning, RFC 7807 error format.
Code Review
PR description quality, Conventional Commits, review checklists, constructive feedback, atomic commits.
Full Output
Bans // TODO, // ..., and all lazy placeholder patterns. Enforces complete, production-ready code generation.
See the Difference
Same AI. Same prompt. Wildly different code quality.
// What AI generates without skills
function getUser(id) {
const user = db.query(
"SELECT * FROM users WHERE id=" + id // SQL injection
);
if (user) {
return user;
}
// TODO: handle error
}// What AI generates WITH senior-engineer-skill
async function findUserById(
userId: UserId
): Promise<Result<User, UserNotFoundError>> {
const user = await this.userRepository.findById(userId);
if (!user) {
return Result.fail(new UserNotFoundError(userId));
}
return Result.ok(user.toDTO());
}Built Different
Not a framework. Not a library. Just dense, battle-tested instructions that transform AI output quality.
Framework Agnostic
Works with Python, TypeScript, Go, Rust, Java, or anything else. Rules are about engineering decisions, not syntax.
Zero Runtime Overhead
These are instruction files, not dependencies. They change the quality of AI output, not the speed of your app.
Composable
Use all 10 skills or just the ones you need. Drop a single SKILL.md into your project and your agent levels up instantly.
Configurable Dials
Tune ARCHITECTURE_COMPLEXITY, STRICTNESS_LEVEL, and VERBOSITY from 1–10 to match your project's exact needs.
Bias Correction
Every skill includes LLM bias corrections that override common AI tendencies like happy-path-only testing and over-engineering.
Pre-flight Checklists
Every skill ends with a checklist to verify all rules are met before code is finalized. No shortcuts, no exceptions.
Works With Every Major AI Agent
Any agent that reads SKILL.md files. One install, universal upgrade.
Configurable Dials
Tune every skill to match your project. Startup MVP? Dial it down. Regulated fintech? Crank it up.
One Command. Done.
Install all 10 skills in seconds — or clone and cherry-pick the ones you want.
Manual Method
Point your agent to the skills/ directory, or drop individual SKILL.md files into your project root. For GitHub Copilot, reference them in .github/copilot-instructions.md
Common Questions
Everything you need to know about using Senior Engineer Skill.
Yes. Every skill is language-agnostic and framework-agnostic. The rules describe engineering decisions, not syntax. Whether you're writing Python, TypeScript, Go, Rust, Java, C#, or anything else — these skills apply.
Absolutely. Each skill is a standalone SKILL.md file. Drop a single one into your project root or reference it explicitly in your agent's context. They compose beautifully but work perfectly in isolation too.
No. These are instruction files, not runtime overhead. They change the quality of output, not the speed. Think of them as a senior engineer whispering best practices into the AI's ear before every response.
Skills compose well. If you have a .cursorrules or CLAUDE.md already, the skills add specificity on top of your existing instructions. They don't override your custom rules — they supplement them with engineering excellence.
Claude Code, Cursor, GitHub Copilot (via .github/copilot-instructions.md), Windsurf, Codex, and any agent with configurable instruction loading. The skills/llms.txt index enables automatic discovery for compatible agents.
Prompts are one-off. Skills are persistent, structured, and composable. Each skill contains 1500+ words of dense, battle-tested rules covering banned patterns, bias corrections, and pre-flight checklists. It's the difference between telling someone to 'write good code' and handing them a senior engineer's playbook.
The architect-skill exposes three dials: ARCHITECTURE_COMPLEXITY (1–10), STRICTNESS_LEVEL (1–10), and VERBOSITY (1–10). For a startup MVP, set complexity to 3 and strictness to 5. For a regulated fintech system, set complexity to 8 and strictness to 9. The AI reads these values and adjusts its behavior accordingly.
Every skill includes a section that overrides known LLM tendencies. For example: LLMs default to microservices (corrected to modular monolith), write happy-path-only tests (corrected to generate edge cases), skip authorization checks (corrected to enforce auth on every operation), and generate massive functions (corrected to 40-line limit). These corrections are what make the output truly senior-level.
Yes! Fork the repo, create a new skill directory under skills/your-skill-name/, add a SKILL.md with YAML front matter, direct imperative voice, Banned Patterns, Bias Corrections, and a Pre-flight Checklist. Skills should be minimum 1500 words, dense, and actionable. Then open a PR.
Yes. Completely free, open source, and community-driven. Use it in personal projects, commercial products, enterprise teams — anywhere you want AI to write better code.
Ready to Ship Senior-Level Code?
One command transforms your AI from junior dev to senior engineer. Every skill. Every agent. Every language.