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charlie-morrison

Composer JSON Validator

by charlie-morrison · GitHub ↗ · v1.0.0 · MIT-0
cross-platform ⚠ suspicious
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Install in OpenClaw
/install composer-json-validator
Description
Validate and lint PHP Composer composer.json files for structure, dependencies, autoload, and best practices. Use when asked to lint, validate, check, or aud...
README (SKILL.md)

Composer JSON Validator

Validate and lint PHP Composer composer.json files for structure, dependencies, autoload configuration, and best practices.

Commands

lint — Run all lint checks

python3 scripts/composer_json_validator.py lint composer.json
python3 scripts/composer_json_validator.py lint composer.json --strict
python3 scripts/composer_json_validator.py lint composer.json --format json
python3 scripts/composer_json_validator.py lint composer.json --format markdown

dependencies — Inspect require/require-dev

python3 scripts/composer_json_validator.py dependencies composer.json
python3 scripts/composer_json_validator.py dependencies composer.json --format json

scripts — Inspect scripts section

python3 scripts/composer_json_validator.py scripts composer.json
python3 scripts/composer_json_validator.py scripts composer.json --format markdown

validate — Full validation (structure + lint + summary)

python3 scripts/composer_json_validator.py validate composer.json
python3 scripts/composer_json_validator.py validate composer.json --strict --format json

Flags

Flag Description
--strict Exit code 1 on warnings (CI-friendly)
--format text Human-readable output (default)
--format json Machine-readable JSON
--format markdown Markdown report

Lint Rules (22 checks)

Structure (5)

  1. Valid JSON syntax
  2. Required fields: name, description, type
  3. Valid package name format (vendor/package)
  4. Valid type value (library, project, metapackage, composer-plugin)
  5. license field present and valid SPDX identifier

Dependencies (6)

  1. No duplicate packages across require and require-dev
  2. Version constraints use valid operators (^, ~, >=, etc.)
  3. No dev-only packages in require (phpunit, mockery, etc.)
  4. No wildcard * versions
  5. PHP version constraint present in require
  6. ext-* dependencies are explicit (not *)

Autoload (4)

  1. PSR-4 autoload defined
  2. Namespace ends with \\ (PSR-4 convention)
  3. No duplicate namespaces across autoload entries
  4. autoload-dev separate from autoload

Best Practices (7)

  1. scripts section present
  2. No post-install-cmd/post-update-cmd executing arbitrary URLs
  3. config.sort-packages enabled
  4. minimum-stability explicit when not stable
  5. prefer-stable set when minimum-stability is not stable
  6. No hardcoded absolute paths in autoload
  7. All repository URLs use HTTPS

Exit Codes

Code Meaning
0 No errors (warnings allowed unless --strict)
1 Errors found (or warnings in --strict mode)
2 Invalid arguments / file not found

Example Output

composer.json lint results
==========================
[ERROR]   name: Package name must match vendor/package format
[WARN]    dependencies: phpunit/phpunit found in require (should be in require-dev)
[WARN]    autoload: config.sort-packages not enabled
[INFO]    scripts: scripts section present

Summary: 1 error(s), 2 warning(s), 1 info
Usage Guidance
This skill appears internally consistent: its description, SKILL.md, and the included Python script (so far) match a composer.json linter. Before installing or running it, open and review the entire scripts/composer_json_validator.py file yourself (or have someone you trust do so) to confirm it does not: (1) call out to the network (requests/curl/wget/subprocess), (2) execute arbitrary shell commands, (3) read unrelated files or environment variables, or (4) write files outside a safe working directory. If you cannot review the full script, run it in an isolated sandbox/container with only the composer.json you want to lint. Also note the skill listing mentions a $49 price in STATUS.md — verify licensing and payment expectations before publishing or paying.
Capability Analysis
Type: OpenClaw Skill Name: composer-json-validator Version: 1.0.0 The skill is a legitimate utility for validating and linting PHP Composer 'composer.json' files. The Python script (scripts/composer_json_validator.py) performs static analysis on the JSON structure, dependencies, and autoload configurations without executing external commands or making network requests. It includes security-focused checks, such as Rule 17 which detects potential 'curl' or 'wget' execution within the analyzed file's scripts section, demonstrating a defensive design rather than malicious intent.
Capability Tags
crypto
Capability Assessment
✓ Purpose & Capability
Name, description, SKILL.md usage examples, and the included script all align: the skill is a composer.json linter and the runtime instructions call the bundled Python script against a composer.json file. No unrelated credentials, binaries, or config paths are requested.
✓ Instruction Scope
SKILL.md only instructs running the bundled script (python3 scripts/composer_json_validator.py) with the target composer.json and flags for format/strictness. It does not ask the agent to read arbitrary system files, environment variables, or post data to external endpoints in the instructions.
✓ Install Mechanism
There is no install spec (instruction-only invocation of a bundled script). Nothing will be downloaded or written to disk beyond the existing packaged files. This is low-risk relative to remote-install behaviors.
ℹ Credentials
The skill declares no required environment variables or credentials, which is proportionate. The bundled script appears to read only the composer.json file passed on the command line. However, the Python source was truncated in the provided bundle listing, so it is not possible to confirm it does not access environment variables, other files, or network resources.
✓ Persistence & Privilege
The skill does not request always: true and has no install-time actions declared that would persist or modify other skills or system-wide settings. Autonomous invocation is allowed (platform default) — note this is normal but means the skill could be run without direct user prompting if the agent chooses to.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install composer-json-validator
  3. After installation, invoke the skill by name or use /composer-json-validator
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
Initial release
Metadata
Slug composer-json-validator
Version 1.0.0
License MIT-0
All-time Installs 0
Active Installs 0
Total Versions 1
Frequently Asked Questions

What is Composer JSON Validator?

Validate and lint PHP Composer composer.json files for structure, dependencies, autoload, and best practices. Use when asked to lint, validate, check, or aud... It is an AI Agent Skill for Claude Code / OpenClaw, with 82 downloads so far.

How do I install Composer JSON Validator?

Run "/install composer-json-validator" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is Composer JSON Validator free?

Yes, Composer JSON Validator is completely free, licensed under MIT-0. You can download, install and use it at no cost.

Which platforms does Composer JSON Validator support?

Composer JSON Validator is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created Composer JSON Validator?

It is built and maintained by charlie-morrison (@charlie-morrison); the current version is v1.0.0.

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