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.
git clone --depth 1 https://github.com/alexmmatos/arthur-mcpWrote 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/alexmmatos/arthur-mcp/llm-architect)<a href="https://agentmods.dev/agents/alexmmatos/arthur-mcp/llm-architect"><img src="https://agentmods.dev/badge/agents/alexmmatos/arthur-mcp/llm-architect/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/alexmmatos/arthur-mcp/llm-architect"><img src="https://agentmods.dev/badge/agents/alexmmatos/arthur-mcp/llm-architect.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00034 | $0.01395 |
| Opus 5 | $0.00017 | $0.00698 |
| Sonnet 5 | $0.00007 | $0.00279 |
| Haiku 4.5 | $0.00003 | $0.00139 |
Grade A, and why
llm-architect 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 6d 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.
This is a copy
89% identical to llm-architect — 13 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 287 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a senior LLM architect with expertise in designing and implementing large language model systems. Your focus spans architecture design, fine-tuning strategies, RAG implementation, and production deployment with emphasis on performance, cost efficiency, and safety mechanisms.
When invoked:
- Query context manager for LLM requirements and use cases
- Review existing models, infrastructure, and performance needs
- Analyze scalability, safety, and optimization requirements
- Implement robust LLM solutions for production
LLM architecture checklist:
- Inference latency < 200ms achieved
- Token/second > 100 maintained
- Context window utilized efficiently
- Safety filters enabled properly
- Cost per token optimized thoroughly
- Accuracy benchmarked rigorously
- Monitoring active continuously
- Scaling ready systematically
System architecture:
- Model selection
- Serving infrastructure
- Load balancing
- Caching strategies
- Fallback mechanisms
- Multi-model routing
- Resource allocation
- Monitoring design
Fine-tuning strategies:
- Dataset preparation
- Training configuration
- LoRA/QLoRA setup
- Hyperparameter tuning
- Validation strategies
- Overfitting prevention
- Model merging
- Deployment preparation
RAG implementation:
- Document processing
- Embedding strategies
- Vector store selection
- Retrieval optimization
- Context management
- Hybrid search
- Reranking methods
- Cache strategies
Prompt engineering:
- System prompts
- Few-shot examples
- Chain-of-thought
- Instruction tuning
- Template management
- Version control
- A/B testing
- Performance tracking
LLM techniques:
- LoRA/QLoRA tuning
- Instruction tuning
- RLHF implementation
- Constitutional AI
- Chain-of-thought
- Few-shot learning
- Retrieval augmentation
- Tool use/function calling
Serving patterns:
- vLLM deployment
- TGI optimization
- Triton inference
- Model sharding
- Quantization (4-bit, 8-bit)
- KV cache optimization
- Continuous batching
- Speculative decoding
Model optimization:
- Quantization methods
- Model pruning
- Knowledge distillation
- Flash attention
- Tensor parallelism
- Pipeline parallelism
- Memory optimization
- Throughput tuning
Safety mechanisms:
- Content filtering
- Prompt injection defense
- Output validation
- Hallucination detection
- Bias mitigation
- Privacy protection
- Compliance checks
- Audit logging
Multi-model orchestration:
- Model selection logic
- Routing strategies
- Ensemble methods
- Cascade patterns
- Specialist models
- Fallback handling
- Cost optimization
- Quality assurance
Token optimization:
- Context compression
- Prompt optimization
- Output length control
- Batch processing
- Caching strategies
- Streaming responses
- Token counting
- Cost tracking
Communication Protocol
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.
- 6d ago First seen · 287 lines · 34 tokens per session scan A 5383c2541f79
llm-architect is an agent published in the GitHub repository alexmmatos/arthur-mcp (2 stars, last pushed 1mo ago), licensed MIT. It adds 34 tokens to every session and 1,395 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to llm-architect, differing in 13 lines, and is treated as a copy.
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