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Slash Command

Validate

Validate project structure and configurations against best practices with detailed issue reporting

Type
Slash Command
GitHub stars
339
License
MIT
Repo last updated
Sep 24, 2026

What Validate is

Validate is a slash command published in the athola/claude-night-market repository on GitHub, which has about 339 stars. The repository describes itself as: “23 Claude Code plugins: TDD enforcement hooks, git/PR workflows, spec-driven development, code review, project lifecycle, fix-from-error, maintenance automation, context optimization, research, and multi-LLM delegation. 186 skills, 128 commands, 54 agents.”

A slash command is a reusable prompt saved as a markdown file and run by typing its name after a slash. In Claude Code, custom commands have been merged into skills: a file in .claude/commands/ and a skill folder in .claude/skills/ both create the same kind of command, and existing command files keep working.

Validate gives you a repeatable way to run the same instructions without retyping them, optionally with arguments.

How to install Validate

Claude Code

  1. Download validate.md from the repository.
  2. Save it to ~/.claude/commands/ (all projects) or .claude/commands/ (one project). As a skill, you can instead save it as ~/.claude/skills/<name>/SKILL.md.
  3. Run it by typing / followed by its name.

Claude Cowork

  1. Turn the command into a skill: create a folder with the file saved as SKILL.md and zip it.
  2. In Customize → Skills, click +, then upload the ZIP.
  3. Run it from any task with / and the skill name.

New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.

Inside the source file

An excerpt from plugins/attune/commands/validate.md, shared under the repository's MIT license. Read the full file on GitHub.

Check project setup against best practices, identify issues, and recommend improvements.

When To Use

Use this command when you need to:

  • Validate project structure and configurations
  • Check for missing required files or settings
  • Identify configuration issues before deployment
  • Audit project against best practices
  • Verify setup after initialization or upgrades

When NOT To Use

Avoid this command if:

  • Just initialized project (likely passing all checks)
  • Need to fix issues, not just identify them (use upgrade-project)
  • Looking for code quality issues (use linting/testing instead)
  • Validating specific component only (check component directly)

Usage

# Validate current project
/attune:validate

# Validate specific path
/attune:validate --path /path/to/project

# Show detailed report
/attune:validate --verbose

What This Command Does

  1. Detects project language and type
  2. Checks for required files and configurations
  3. Validates file contents (e.g., proper Makefile targets)
  4. Reports issues and recommendations

Validation Checks

Git Configuration

  • ✅ Git repository initialized
  • ✅ .gitignore present and complete
  • ✅ No large files tracked
  • ✅ No secrets in repository

Build Configuration

  • ✅ Makefile with standard targets (test, lint, format)
  • ✅ Dependency file present (pyproject.toml, Cargo.toml, package.json)
  • ✅ Version pinning for dependencies

Code Quality

  • ✅ Pre-commit hooks configured
  • ✅ Linter configuration present
  • ✅ Formatter configuration present
  • ✅ Type checker configured

CI/CD

  • ✅ Test workflow configured
  • ✅ Lint workflow configured
  • ✅ Type check workflow configured
  • ✅ Workflows use latest action versions

Project Structure

  • ✅ Source directory present (src/)
  • ✅ Test directory present (tests/)
  • ✅ README.md present
  • ✅ License file present

Output Format

Project Validation Report
========================
Project: my-awesome-project
Language: Python
Path: /home/user/my-awesome-project

Git Configuration
  ✅ Git repository initialized
  ✅ .gitignore present (50 patterns)

Build Configuration
  ✅ pyproject.toml present
  ✅ Makefile with 15 targets
  ⚠️  uv.lock is outdated (run: uv sync)

Code Quality
  ✅ Pre-commit hooks configured (7 hooks)
  ✅ Ruff configuration present
…

Exit Codes

  • 0 - All checks passed
  • 1 - Minor issues (warnings only)
  • 2 - Major issues (missing required files)

Examples

Example 1: Quick Validation

/attune:validate

Example 2: Verbose Report with Suggestions

/attune:validate --verbose --suggestions

Includes:

  • Detailed explanation of each check
  • Links to documentation
  • Copy-paste commands to fix issues

Example 3: CI Integration

# .github/workflows/validate.yml
name: Project Structure Validation

on: [push, pull_request]

jobs:
  validate:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Validate project structure
        run: |
          python3 plugins/attune/scripts/validate_project.py --strict

Related Commands

  • /attune:project-init - Initialize new project
  • /attune:upgrade-project - Fix validation issues automatically

Before you install

  • Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
  • Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
  • Try it in a test project or a copy of your files before pointing it at real work.
  • Pin the version you tested, and review changes before updating.
  • Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.

FAQ

What is Validate?

Validate is a slash command for Claude Code and Claude Cowork from the athola/claude-night-market repository on GitHub. Validate project structure and configurations against best practices with detailed issue reporting

How do I install Validate in Claude Code?

Download validate.md from the repository. Save it to ~/.claude/commands/ (all projects) or .claude/commands/ (one project). As a skill, you can instead save it as ~/.claude/skills/<name>/SKILL.md. Run it by typing / followed by its name.

Can I use Validate in Claude Cowork?

Turn the command into a skill: create a folder with the file saved as SKILL.md and zip it. In Customize → Skills, click +, then upload the ZIP. Run it from any task with / and the skill name.

Is Validate safe to install?

It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.

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Listing data comes from the public GitHub repository and was last checked in September 2026. Excerpts are © their authors and shared under MIT. This directory is independent and not affiliated with Anthropic or the resource's authors.