How do I install the Solid Detection skill?

Run npx skillmds@latest add fusengine/solid-detection in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Solid Detection safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Solid Detection?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Solid Detection free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Solid Detection?

fusengine (@fusengine) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Solid Detection by fusengine — Agent Skill

Name: Solid Detection
Rating: 4.5 (4 reviews)
Author: fusengine

File contents

An interface found in the wrong location is a hard BLOCK; exceeding the file-size limit or missing documentation is a WARNING only. See language-rules.md for the full per-language interface-location, forbidden-zone, and line-counting rules.

SOLID Detection Skill

References

language-rules.md - Load when: resolving the exact interface directory, file-limit, or pattern-detection regex for a specific language (Next.js, React, Generic TS, Laravel, Swift, Java, Go, Ruby, Rust, Python), or counting lines while excluding comments/blanks

Project Detection

Detect project type from configuration files:

# Next.js (priority over React)
[ -f "package.json" ] && grep -q '"next"' package.json

# React (no "next" in package.json)
[ -f "package.json" ] && grep -q '"react"' package.json && ! grep -q '"next"' package.json

# Generic TypeScript (no react/next, has .ts files)
[ -f "package.json" ] && ! grep -q '"react"' package.json && ! grep -q '"next"' package.json
[ -f "tsconfig.json" ] || [ -f "bun.lockb" ] || [ -f "bunfig.toml" ]

# Laravel
[ -f "composer.json" ] && grep -q '"laravel' composer.json

# Swift
[ -f "Package.swift" ] || ls *.xcodeproj

# Java
[ -f "pom.xml" ] || [ -f "build.gradle" ] || [ -f "build.gradle.kts" ]

# Go
[ -f "go.mod" ]

# Ruby
[ -f "Gemfile" ] && [ -f "Rakefile" ]

# Rust
[ -f "Cargo.toml" ]

# Python
[ -f "pyproject.toml" ] || [ -f "requirements.txt" ]

Priority order: Next.js > React > Generic TS > Laravel > Swift > Java > Go > Ruby > Rust > Python

For the full per-language rule tables (interface location, forbidden zones, pattern-detection regex) and line-counting rules, see language-rules.md.

Validation Actions

Severity	Action
Interface in wrong location	BLOCK (exit 2)
File over limit	WARNING (exit 0)
Missing documentation	WARNING

Skill Mapping

Project Type	SOLID Skill	Skill Path
`nextjs`	solid-nextjs	`nextjs-expert/skills/solid-nextjs/`
`react`	solid-react	`react-expert/skills/solid-react/`
`generic`	solid-generic	`solid/skills/solid-generic/`
`laravel`	solid-php	`laravel-expert/skills/solid-php/`
`swift`	solid-swift	`swift-apple-expert/skills/solid-swift/`
`java`	solid-java	`solid/skills/solid-java/`
`go`	solid-go	`solid/skills/solid-go/`
`ruby`	solid-ruby	`solid/skills/solid-ruby/`
`rust`	solid-rust	`solid/skills/solid-rust/`
`python`	(no skill yet)	-

Environment Variables

Set by detect-project.sh:

SOLID_PROJECT_TYPE=nextjs|react|generic|laravel|swift|java|go|ruby|rust|python|unknown
SOLID_FILE_LIMIT=100|150
SOLID_INTERFACE_DIR=path/to/interfaces
SOLID_STRUCTURE=modular

---name: solid-detectiondescription: Use when determining which language-specific SOLID skill to load, detecting project type from config files, or resolving interface directory conventions.---<objective>SOLID Detection identifies a project's language/framework from its config files (package.json + next/react, tsconfig.json/bun files, composer.json + laravel, Package.swift/*.xcodeproj, pom.xml/build.gradle, go.mod, Gemfile+Rakefile, Cargo.toml, pyproject.toml/requirements.txt) in a fixed priority order, then maps it to the matching SOLID skill and sets `SOLID_PROJECT_TYPE`, `SOLID_FILE_LIMIT`, `SOLID_INTERFACE_DIR`, and `SOLID_STRUCTURE` environment variables via `detect-project.sh`.An interface found in the wrong location is a hard BLOCK; exceeding the file-size limit or missing documentation is a WARNING only. See `language-rules.md` for the full per-language interface-location, forbidden-zone, and line-counting rules.</objective># SOLID Detection Skill## References- [language-rules.md](references/language-rules.md) - Load when: resolving the exact interface directory, file-limit, or pattern-detection regex for a specific language (Next.js, React, Generic TS, Laravel, Swift, Java, Go, Ruby, Rust, Python), or counting lines while excluding comments/blanks## Project DetectionDetect project type from configuration files:```bash# Next.js (priority over React)[ -f "package.json" ] && grep -q '"next"' package.json# React (no "next" in package.json)[ -f "package.json" ] && grep -q '"react"' package.json && ! grep -q '"next"' package.json# Generic TypeScript (no react/next, has .ts files)[ -f "package.json" ] && ! grep -q '"react"' package.json && ! grep -q '"next"' package.json[ -f "tsconfig.json" ] || [ -f "bun.lockb" ] || [ -f "bunfig.toml" ]# Laravel[ -f "composer.json" ] && grep -q '"laravel' composer.json# Swift[ -f "Package.swift" ] || ls *.xcodeproj# Java[ -f "pom.xml" ] || [ -f "build.gradle" ] || [ -f "build.gradle.kts" ]# Go[ -f "go.mod" ]# Ruby[ -f "Gemfile" ] && [ -f "Rakefile" ]# Rust[ -f "Cargo.toml" ]# Python[ -f "pyproject.toml" ] || [ -f "requirements.txt" ]```**Priority order:** Next.js > React > Generic TS > Laravel > Swift > Java > Go > Ruby > Rust > PythonFor the full per-language rule tables (interface location, forbidden zones, pattern-detection regex) and line-counting rules, see [language-rules.md](references/language-rules.md).## Validation Actions| Severity | Action ||----------|--------|| Interface in wrong location | **BLOCK** (exit 2) || File over limit | **WARNING** (exit 0) || Missing documentation | **WARNING** |## Skill Mapping| Project Type | SOLID Skill | Skill Path ||--------------|-------------|------------|| `nextjs` | solid-nextjs | `nextjs-expert/skills/solid-nextjs/` || `react` | solid-react | `react-expert/skills/solid-react/` || `generic` | solid-generic | `solid/skills/solid-generic/` || `laravel` | solid-php | `laravel-expert/skills/solid-php/` || `swift` | solid-swift | `swift-apple-expert/skills/solid-swift/` || `java` | solid-java | `solid/skills/solid-java/` || `go` | solid-go | `solid/skills/solid-go/` || `ruby` | solid-ruby | `solid/skills/solid-ruby/` || `rust` | solid-rust | `solid/skills/solid-rust/` || `python` | _(no skill yet)_ | - |## Environment VariablesSet by `detect-project.sh`:```bashSOLID_PROJECT_TYPE=nextjs|react|generic|laravel|swift|java|go|ruby|rust|python|unknownSOLID_FILE_LIMIT=100|150SOLID_INTERFACE_DIR=path/to/interfacesSOLID_STRUCTURE=modular```

Frequently asked questions

Solid Detection