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💩 slop-scan

slop-scan: Deterministic PHP CLI for finding explainable slop patterns in PHP repositories.

slop-scan is a static-analysis style heuristic scanner. It is not an authorship detector. It reports concrete findings with rule IDs, evidence, scores, and stable occurrence fingerprints so results can be reviewed, compared, and tracked over time.

This repository started from a fork of modem-dev/slop-scan and was rewritten in PHP with Codex so it fits PHP tooling, packaging, and CI workflows directly.

It ships with AST-backed PHP heuristics, deterministic delta identities, compact baselines, reusable scan caching, and configurable suppressions for real-world repository adoption.

Requirements

• PHP 8.3+
• Composer

Quick start

1. Install the latest release PHAR:

2. Scan the current repository:

3. Pick an output format that matches your workflow:

4. Ignore generated or irrelevant paths when needed:

The scanner targets PHP source files such as .php, .phtml, and .inc, plus Markdown docs such as .md and .markdown.

If your repository keeps its config outside the scan root, point the scan at it explicitly:

You can also keep common scan defaults in slop-scan.config.json so teams do not need to repeat the same flags on every run:

When present, those config values act as defaults for scan. Explicit CLI flags still win.

What it ships with

• Deterministic findings with stable occurrence fingerprints for review, delta comparisons, and baseline workflows.
• Built-in heuristics for PHP patterns such as empty catches, error swallowing, blanket suppressions, magic numbers, placeholder bodies, clone clusters, and type-escape hotspots, plus Markdown checks for low-signal process docs.
• Multiple output targets including text, lint, JSON, GitHub annotations, TOON, and NDJSON.
• Repo-friendly controls including path ignores, per-rule overrides, repo-level scan defaults, PHPStan-style ignoreErrors, and inline @slop-scan-ignore directives.
• Reusable per-file scan caching via .slop-scan.cache.json and a stats command for repository-level summaries.

More docs

• Installation and local builds
• Delta comparisons and baselines
• Supported files and built-in rules
• Configuration and suppressions
• Report shape
• Development and validation
• Contributing

Local development quick start

Install dependencies:

Run the CLI from the repository checkout:

Portable agent skills

This repository keeps vendor-neutral agent skills in .ai/skills/manifest.yaml.

Those files are the repo-owned source of truth for coding agents such as Copilot, Codex, Gemini, or similar tools. Each skill is plain YAML that defines when to use it, which repository command to run, what inputs it expects, what output to prefer, and how to handle common failures.

Current portable skills:

• scan-php-slop for deterministic PHP repository scans
• validate-slop-scan-repo for scan-readiness checks and slop-scan troubleshooting on a target PHP repository
• interpret-slop-scan-json for machine-readable report review