Rule Catalog Skill for Claude

When To Use

• Browsing available hookify rules by category
• Installing standard pre-built rules into a project
• Looking for ready-made rules before writing custom ones

When NOT To Use

• Writing custom rules from scratch: use hookify:writing-rules instead
• Debugging or modifying existing installed rules
• Converting Python SDK hooks: use hookify:from-hook instead

Table of Contents

• Quick Install
• Available Rules
• git/ - Git Safety
• python/ - Python Quality
• security/ - Security Gates
• workflow/ - Workflow Enforcement
• performance/ - Resource Management
• Installation Instructions
• Method 1: Claude-Assisted (Recommended))
• Method 2: Python Script
• Method 3: Manual Copy
• Rule File Locations
• Customizing Rules
• Creating Pull Requests for New Rules
• Related

Hookify Rule Catalog

Pre-built rules for common scenarios. Install directly or use as templates.

Quick Install

# Install a specific rule
Skill(hookify:rule-catalog) then install git:block-force-push

# Or use the Python installer for bulk operations
python3 plugins/hookify/scripts/install_rule.py git:block-force-push
python3 plugins/hookify/scripts/install_rule.py --category git
python3 plugins/hookify/scripts/install_rule.py --all

Verification: Run python --version to verify Python environment.

Available Rules

git/ - Git Safety

| Rule | Action | Default | Description |

|------|--------|---------|-------------|

| block-force-push | block | enabled | Prevent force push to main/master |

| block-destructive-git | block | enabled | Block reset --hard, checkout -- ., clean -fd, etc. |

| warn-risky-git | warn | enabled | Warn about rebase -i, soft reset, etc. |

| warn-large-commits | warn | enabled | Warn about large binary files |

python/ - Python Quality

| Rule | Action | Default | Description |

|------|--------|---------|-------------|

| block-dynamic-code | block | enabled | Block dangerous dynamic code execution |

| warn-print-statements | warn | enabled | Encourage logging over print() |

security/ - Security Gates

| Rule | Action | Default | Description |

|------|--------|---------|-------------|

| require-security-review | block | enabled | Require review for auth code |

| destructive-command-guard | warn | enabled | Warn on destructive commands targeting prod-shaped paths |

workflow/ - Workflow Enforcement

| Rule | Action | Default | Description |

|------|--------|---------|-------------|

| enforce-scope-guard | warn | enabled | Anti-overengineering (imbue) |

| require-spec-before-code | block | disabled | Spec-first development |

performance/ - Resource Management

| Rule | Action | Default | Description |

|------|--------|---------|-------------|

| warn-large-file-ops | warn | enabled | Watch large file writes |

Installation Instructions

Method 1: Claude-Assisted (Recommended)

When you invoke this skill, tell Claude which rule(s) to install:

**Verification:** Run `git status` to confirm working tree state.
Install git:block-force-push

Verification: Run the command with --help flag to verify availability.

Claude will:

• Read the rule from skills/rule-catalog/rules/git/block-force-push.md
• Write it to .claude/hookify.block-force-push.local.md
• Confirm installation

Method 2: Python Script

For bulk operations or automation:

# Install single rule
python3 plugins/hookify/scripts/install_rule.py git:block-force-push

# Install all rules in category
python3 plugins/hookify/scripts/install_rule.py --category python

# Install all rules
python3 plugins/hookify/scripts/install_rule.py --all

# List available rules
python3 plugins/hookify/scripts/install_rule.py --list

# Install to custom directory
python3 plugins/hookify/scripts/install_rule.py git:block-force-push --target /path/to/.claude

Verification: Run the command with --help flag to verify availability.

Method 3: Manual Copy

• Find rule in plugins/hookify/skills/rule-catalog/rules/<category>/<rule>.md
• Copy to .claude/hookify.<rule-name>.local.md
• Edit enabled: true/false as needed

Rule File Locations

Rules are stored relative to this skill:

**Verification:** Run the command with `--help` flag to verify availability.
skills/rule-catalog/
├── SKILL.md (this file)
└── rules/
    ├── git/
    │   ├── block-force-push.md
    │   ├── block-destructive-git.md
    │   ├── warn-risky-git.md
    │   └── warn-large-commits.md
    ├── python/
    │   ├── block-dynamic-code.md
    │   └── warn-print-statements.md
    ├── security/
    │   ├── require-security-review.md
    │   └── destructive-command-guard.md
    ├── workflow/
    │   ├── enforce-scope-guard.md
    │   └── require-spec-before-code.md
    └── performance/
        └── warn-large-file-ops.md

Verification: Run the command with --help flag to verify availability.

Customizing Rules

After installation, edit the rule in .claude/:

# Change action from warn to block
action: block

# Disable temporarily
enabled: false

# Modify pattern
pattern: your-custom-pattern

Verification: Run the command with --help flag to verify availability.

Creating Pull Requests for New Rules

To add rules to the catalog:

• Create rule file in appropriate category
• Follow naming convention: kebab-case.md
• Include detailed message with alternatives
• Test thoroughly before submitting
• Update this SKILL.md catalog table

Related

• Skill(hookify:writing-rules) - Create custom rules
• /hookify:list - Show installed rules
• /hookify:configure - Manage installed rules

Exit Criteria

• [ ] Installed rule file exists at

.claude/hookify.<rule-name>.local.md with enabled: true

in its frontmatter

• [ ] Rule activates without requiring a session restart; verified

by triggering a matching pattern and observing the warn or

block response

• [ ] When installing via Python script, exit code 0 is returned

and the rule file is present at the target path

• [ ] Rule file structure matches the catalog source at

skills/rule-catalog/rules/<category>/<rule>.md; no fields

silently dropped during installation