Osgrep
Find code by concept using natural language semantic search
What You Can Do
You can locate code by describing what it does rather than searching for specific syntax. Ask questions like "where is auth validated", "how are plugins loaded", or "find the retry logic" and get back file paths with line numbers and relevant code snippets. This works across large codebases to help you understand system architecture, trace implementation details, and discover how features are built.
Features
describe code behavior and get semantic matches across your codebase
find code by what it does, not by exact text or variable names
pinpoint exact locations in your project structure
see up to 16-line code samples to validate matches before diving deep
optionally narrow searches to specific directories or packages
map system-level patterns like authentication flows, plugin loading, or middleware chains
identify how similar logic is implemented across different parts of your codebase
Example Output
Query: osgrep "where is user authentication validated"
Results:
gateway/middleware/auth.js:42-58 — Validates session tokens and user roles
services/auth/validator.js:18-34 — Checks JWT signature and expiration
utils/security.js:105-120 — Core validation logic with permission checks
Query: osgrep "how are plugins loaded and initialized"
Results:
plugins/loader.js:1-16 — Plugin discovery and registration
core/plugin-registry.js:45-62 — Initialization sequence
config/plugin-config.json:1-30 — Plugin configuration structure
What's Included
- SKILL.md: Complete osgrep reference with query strategies and best practices
- Query Strategy Framework: Guidance for architectural vs. targeted implementation searches
- Output Interpretation Guide: How to read results and when to drill deeper into full files
- Real-World Query Examples: Authentication, plugin systems, middleware, configuration patterns
Who It's For
- Backend engineers navigating unfamiliar codebases or microservices architectures
- Full-stack developers learning how features are implemented across layers
- DevOps engineers tracing logging, monitoring, or deployment logic
- Tech leads conducting code reviews and understanding system design decisions
- Onboarding developers discovering where core functionality lives
Best For
- Finding where specific features or business logic are implemented
- Understanding authentication, authorization, and security flows
- Tracing how configuration is loaded and applied
- Discovering plugin architectures and middleware chains
- Mapping error handling and retry patterns across codebases
- Locating database queries, API endpoints, or service integrations
You might also like
You get a structured decision framework that guides salary negotiations, cap optimization, and contract valuation in professional sports. The skill helps you analyze market comparables, model cap scenarios, design multi-year deal structures, and develop data-driven negotiation strategies that maximize player value while maintaining team financial flexibility.
by pr-pm
You can generate comprehensive licensing agreements tailored to sports partnerships, automatically calculate royalty structures based on various metrics, and verify compliance with jurisdiction-specific regulations. This skill ensures your licensing documents are legally sound, financially transparent, and audit-ready.
by pr-pm
You can develop comprehensive promotion strategies that segment audiences, coordinate messaging across digital and traditional channels, activate sponsorship opportunities, and measure campaign performance. This skill helps you create data-driven campaigns that maximize attendance, engage sponsors effectively, and track every promotion dollar spent across your sports event.
by pr-pm
You can systematically evaluate biomechanical data from motion capture systems, force plates, and sensor networks to identify performance bottlenecks and injury risk factors. The framework processes kinematic angles, ground reaction forces, and movement asymmetries to generate actionable coaching insights and training recommendations that enhance athletic performance while reducing injury likelihood.
by pr-pm
This skill helps you evaluate sponsorship opportunities, assess deal terms, and identify the best partners for your brand or event. Claude analyzes contracts, calculates ROI projections, identifies sponsorship gaps, and generates data-driven recommendations to maximize partnership value and revenue potential.
by pr-pm
Transform raw performance data into comprehensive analytics reports that reveal trends, strengths, and improvement areas. This skill processes workout metrics, competition results, and fitness data to generate detailed performance summaries with visual insights, statistical analysis, and personalized recommendations. You get actionable intelligence to optimize training, track progress, and make informed decisions about athlete development.
by pr-pm
You can create comprehensive evaluation frameworks that measure NLP model performance across multiple dimensions, from accuracy and fluency to safety and latency. This skill helps you build systematic error analysis workflows that identify failure patterns, root causes, and targeted improvement opportunities in Claude applications and custom NLP systems. You'll generate evaluation metrics, diagnostic test suites, and performance dashboards that surface exactly where and why your models underperform.
by skillslib
You can evaluate licensing opportunities for sports brands and athletes, assess partnership fit against your business goals, and generate customized agreement frameworks tailored to your specific terms and protections. This skill helps you navigate the complex legal and commercial landscape of sports licensing while ensuring compliance with league regulations and industry standards.
by pr-pm