Project Detection

CRITICAL: The description field above controls when Claude auto-loads this skill.

This skill provides mechanical detection scripts and patterns for identifying project frameworks, languages, and structures across any technology stack.

What This Skill Provides

1. Detection Scripts (Mechanical - No AI Needed)

• detect-framework.sh - Identifies framework from config files
• detect-language.sh - Detects primary programming language
• detect-structure.sh - Maps project directory structure
• detect-tools.sh - Finds build tools, linters, formatters
• analyze-dependencies.sh - Analyzes package dependencies

2. Templates

• project-json.template - Standard project.json structure
• Framework detection patterns for 20+ frameworks
• Language detection rules

3. Reference Documentation

• Framework identification rules
• Directory structure patterns
• Tooling detection logic

Instructions

When user asks to detect or analyze a project:

Step 1: Run Framework Detection

Execute the framework detection script:

!{bash plugins/01-core/skills/project-detection/scripts/detect-framework.sh .}

This mechanically checks for:

• package.json (Node.js/JavaScript)
• pyproject.toml, requirements.txt (Python)
• Cargo.toml (Rust)
• go.mod (Go)
• pom.xml, build.gradle (Java)
• composer.json (PHP)
• Gemfile (Ruby)

Step 2: Detect Language and Version

Execute language detection:

!{bash plugins/01-core/skills/project-detection/scripts/detect-language.sh .}

Step 3: Map Directory Structure

Execute structure detection:

!{bash plugins/01-core/skills/project-detection/scripts/detect-structure.sh .}

Step 4: Analyze Dependencies and Tools

Execute dependency analysis:

!{bash plugins/01-core/skills/project-detection/scripts/analyze-dependencies.sh .}

Step 5: Generate Project Configuration

Use the detected information to create .claude/project.json with:

• type (web-app, api, cli, library, etc.)
• framework (Next.js, Django, FastAPI, etc.)
• language and version
• structure mappings
• tools (build, test, lint, format)
• dependencies

Detection Patterns

Framework Detection Rules

Node.js Frameworks:

• Next.js: package.json contains "next" dependency + pages/ or app/ directory
• React: package.json contains "react" + src/components/
• Vue: package.json contains "vue" + src/
• Express: package.json contains "express"
• NestJS: package.json contains "@nestjs/core"

Python Frameworks:

• Django: requirements.txt contains "Django" or pyproject.toml lists django
• FastAPI: fastapi dependency + app/main.py pattern
• Flask: flask dependency
• Streamlit: streamlit dependency

Rust:

• Cargo.toml [package] section
• Check for web frameworks: axum, actix-web, rocket

Go:

• go.mod file
• Check for frameworks: gin, echo, fiber

Structure Detection Patterns

Common Patterns:

• src/, app/, lib/ → Source code
• components/, pages/ → Frontend
• api/, routes/, handlers/ → Backend
• tests/, test/, spec/ → Tests
• docs/, documentation/ → Documentation
• config/, .config/ → Configuration

Examples

Example 1: Detect Next.js Project

User: "What framework is this project using?"

Claude (auto-loads this skill, runs detection): !{bash plugins/01-core/skills/project-detection/scripts/detect-framework.sh .}

Result: "Next.js 14.0.0 with TypeScript, App Router architecture"

Example 2: Initialize New Project

User: "Initialize this project"

Claude (auto-loads this skill, analyzes structure): !{bash plugins/01-core/skills/project-detection/scripts/detect-structure.sh .}

Creates .claude/project.json with detected mappings

Requirements

Scripts must be:

• ✅ Mechanical (pattern recognition, no AI decisions)
• ✅ Fast (complete in < 1 second)
• ✅ Project-agnostic (work with ANY framework)
• ✅ Exit codes: 0 = success, 1 = error

Output format:

• JSON for machine parsing
• Clear status messages for humans
• Error messages explain what's missing

Success Criteria

• ✅ Detects 20+ frameworks accurately
• ✅ Works in any project directory
• ✅ Generates valid project.json
• ✅ Scripts are executable and documented
• ✅ No hardcoded assumptions about structure

Plugin: 01-core Skill Type: Analyzer + Generator Auto-invocation: Yes (via description matching)