catalyst
🥈SilverHigh-performance Rust hooks for Claude Code skill auto-activation. ~2ms startup, zero dependencies, production-tested patterns.
820Updated 2mo ago
Intermediate30min to implementautomation
Saves ~10 min per use
Quick InstallView Source
git clone https://github.com/dwalleck/catalyst.gitWorks with:
Claude
Overview
About This Skill
Catalyst provides battle-tested Rust hooks designed to make Claude Code skills activate automatically based on context—keywords, file paths, intent patterns, and file content analysis. Built from 6 months of production use, it runs in ~2ms with zero runtime dependencies, making skill suggestions imperceptible to users. The skill-activation-prompt hook analyzes every user input to match relevant skills, while file-analyzer scans codebases for patterns like async functions without error handling, database usage, and API endpoints. Optional SQLite state management enables tracking file modifications across sessions with rich query capabilities. Developers benefit from dramatically faster skill activation than interpreted alternatives like TypeScript or Python, with minimal memory footprint (3-5MB) and self-contained binaries (1.8-2.4MB).
How to Use
Install via standalone script: run `./install.sh` (or `./install.ps1` on Windows) from the catalyst directory to build binaries in `~/.claude-hooks/bin/`. Create a thin bash/PowerShell wrapper in your project's `.claude/hooks/` directory pointing to the installed binary. Configure the `UserPromptSubmit` hook in `.claude/settings.json` to run `skill-activation-prompt.sh` (or `.ps1`) on every user prompt.
Use Cases
Automatically suggest backend frameworks when detecting API endpoint patterns
Activate database skills when codebase contains Prisma or SQL queries
Trigger async error handling skills for unprotected async functions
Enable context-aware skill loading based on file type and project structure
Setup & Installation
Quick Install
No install command available. Check the GitHub repository for manual installation instructions.
Alternative Install (Git Clone)
git clone https://github.com/dwalleck/catalystRequirements
- Claude Code or compatible AI agent
- Works with: Claude
Quick Start Guide
1
Install the Skill
Copy the install command above and run it in your terminal.
2
Open Your AI Agent
Launch Claude Code, Cursor, or your preferred AI coding agent.
3
Try It Out
Use the prompt template or examples below to test the skill.
4
Customize
Adapt the skill to your specific use case and workflow.
Usage Examples
Prompt Template
Write a Rust function using the catalyst hook to auto-activate Claude Code skills for processing [DATA] in the [INDUSTRY] sector. Ensure it meets production standards with <2ms startup time and no dependencies.
Example Output
# Rust Function for Claude Code Auto-Activation
```rust
use catalyst::hook;
fn process_data(data: &str) -> Result<String, String> {
let hook = hook::ClaudeCode::new("data_processing")?;
let output = hook.execute(data)?;
Ok(output)
}
fn main() {
let sample_data = "2023 Q3 financials for [COMPANY] in the [INDUSTRY] sector";
match process_data(sample_data) {
Ok(result) => println!("Processed data: {}", result),
Err(e) => eprintln!("Error: {}", e),
}
}
```
## Key Features
- **Performance**: Achieves <2ms startup time
- **Reliability**: Production-tested patterns
- **Dependencies**: Zero external dependencies
- **Use Case**: Optimized for [INDUSTRY] data processingApply to these tools
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