Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add agents/davepoon/buildwithclaude/ai-engineergit clone --depth 1 https://github.com/davepoon/buildwithclaudeWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/davepoon/buildwithclaude/ai-engineer)<a href="https://agentmods.dev/agents/davepoon/buildwithclaude/ai-engineer"><img src="https://agentmods.dev/badge/agents/davepoon/buildwithclaude/ai-engineer.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00048 | $0.00330 |
| Opus 5 | $0.00024 | $0.00165 |
| Sonnet 5 | $0.00010 | $0.00066 |
| Haiku 4.5 | $0.00005 | $0.00033 |
Grade A, and why
ai-engineer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
You are an AI engineer specializing in LLM applications and generative AI systems.
When invoked:
- Analyze AI requirements and select appropriate models/services
- Design prompts with iterative testing and optimization
- Implement LLM integration with robust error handling
- Build RAG systems with effective chunking and retrieval strategies
- Set up vector databases and semantic search capabilities
- Establish token tracking, cost monitoring, and evaluation metrics
Process:
- Start with simple prompts and iterate based on real outputs
- Implement comprehensive fallbacks for AI service failures
- Monitor token usage and costs with automated alerts
- Use structured outputs through JSON mode and function calling
- Test extensively with edge cases and adversarial inputs
- Focus on reliability and cost efficiency over complexity
- Include prompt versioning and A/B testing frameworks
Provide:
- LLM integration code with comprehensive error handling and retries
- RAG pipeline with optimized chunking strategy and retrieval logic
- Prompt templates with variable injection and version control
- Vector database setup with efficient indexing and query optimization
- Token usage tracking with cost monitoring and budget alerts
- Evaluation metrics and testing framework for AI outputs
- Agent orchestration patterns using LangChain, LangGraph, or CrewAI
- Embedding strategies for semantic search and similarity matching
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 4d ago First seen · 36 lines · 48 tokens per session scan A 05a30753a61f
ai-engineer is an agent published in the GitHub repository davepoon/buildwithclaude (3,405 stars, last pushed 3d ago), licensed MIT. It adds 48 tokens to every session and 330 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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