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textmate-grammar

1 stars
14
C

Use when creating or editing TextMate grammar files for VS Code syntax highlighting - patterns, scopes, and language tokenization

Third-Party Agent Skill: Review the code before installing. Agent skills execute in your AI assistant's environment and can access your files. Learn more about security

Installation for Agentic Skill

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skilz install mcclowes/omg/textmate-grammar
skilz install mcclowes/omg/textmate-grammar --agent opencode
skilz install mcclowes/omg/textmate-grammar --agent codex
skilz install mcclowes/omg/textmate-grammar --agent gemini

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Works with 22+ AI coding assistants

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Extract and copy to ~/.claude/skills/ then restart Claude Desktop

1. Clone the repository:
git clone https://github.com/mcclowes/omg
2. Copy the agent skill directory:
cp -r omg/.claude/skills/textmate-grammar ~/.claude/skills/
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Need detailed installation help? Check our platform-specific guides:

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Agentic Skill Details

Owner
mcclowes (GitHub)
Repository
omg
Stars
1
Type
Non-Technical
Meta-Domain
development
Primary Domain
github
Market Score
14
Agentic Skill Grades →

Agent Skill Grade

C
Score: 77/100 Click to see breakdown

Score Breakdown

Spec Compliance
12/15
PDA Architecture
20/30
Ease of Use
20/25
Writing Style
8/10
Utility
16/20
Modifiers: +1

Areas to Improve

  • Missing TOC for navigation
  • No workflow guidance
  • Missing validation and testing

Recommendations

  • Address 2 high-severity issues first
  • Add trigger phrases to description for discoverability
  • Add table of contents for files over 100 lines

Graded: 2026-01-24

Developer Feedback

I analyzed the TextMate grammar skill and found it handles a fairly niche but important problem—syntax highlighting is one of those things most developers never think about until they need it. With a 77/100, you're clearly doing the fundamentals well, though there's some room to tighten up either the spec clarity or the user experience layer.

Links:

The TL;DR

You're at 77/100, C territory—solid but with gaps. This is based on Anthropic's best practices for agentic skills. Your strongest area is Spec Compliance (12/15), but Progressive Disclosure Architecture (20/30) and Ease of Use (20/25) are dragging the score down. The real issue: you're showing what TextMate grammars are, but not how developers should use them to solve problems.

What's Working Well

  • Clear triggers and discoverability. "Use when creating or editing TextMate grammar files for VS Code" gets the job done, and the metadata is solid.
  • Solid scope naming table. The breakdown of keyword.control, storage.type, entity.name.function gives developers a concrete reference without bloat.
  • Quick Start template shows structure. Having that minimal example right upfront is helpful—developers see a working scopeName, basic patterns, and a repository in one place.
  • Good technical accuracy. No hand-waving, patterns are real, and the content is factually correct throughout.

The Big One: Missing Workflow Guidance

Here's what's holding you back: You explain the components but not the workflow. A developer reading this can see what a TextMate grammar looks like, but they don't know how to build one from scratch.

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