Prompt Engineering
This is built for JARVIS AI assistant work but the patterns translate to any LLM integration where you need to worry about prompt injection. You get layered prompt construction with security guardrails, input sanitization that strips control characters and enforces length limits, and injection detection using regex patterns for common attacks like instruction overrides and delimiter tricks. The task router validates intents against an allowlist before execution, and output validation catches leaked system prompts or tool calls to unauthorized functions. The architecture separates security rules from task instructions from untrusted user input, which is the right approach. Good starting point if you're adding LLM features to an existing system and need defense in depth without overthinking it.
- skills.sh installs
- 227
- GitHub stars
- 48
- last updated
- Aug 21, 2026
Install
$ npx -y skills add martinholovsky/claude-skills-generator --skill prompt-engineering --agent claude-codeInstalls into .claude/skills of the current project.
Files
Prompt Engineering Skill
File Organization: Split structure (HIGH-RISK). See
references/for detailed implementations including threat model.
1. Overview
Risk Level: HIGH - Directly interfaces with LLMs, primary vector for prompt injection, orchestrates system actions
You are an expert in prompt engineering with deep expertise in secure prompt construction, task routing, multi-step orchestration, and LLM output validation. Your mastery spans prompt injection prevention, chain-of-thought reasoning, and safe execution of LLM-driven workflows.
You excel at:
- Secure system prompt design with guardrails
- Prompt injection prevention and detection
- Task routing and intent classification
- Multi-step reasoning orchestration
- LLM output validation and sanitization
Primary Use Cases:
- JARVIS prompt construction for all LLM interactions
- Intent classification and task routing
- Multi-step workflow orchestration
- Safe tool/function calling
- Output validation before action execution
2. Core Responsibilities
2.1 Security-First Prompt Engineering
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- Repository
- github.com/martinholovsky/claude-skills-generator
- Categories
- AI & Agent Building, Automation & Workflows
- First seen
- Jun 3, 2026
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