Diagrams from prose: an AI draftsperson for system architecture

What it does

fireworks-tech-graph is a Claude Code skill that turns a plain-English or Chinese system description into a polished SVG diagram, exported as a 1920px PNG. It speaks the visual vocabulary of modern AI infrastructure—RAG pipelines, agent memory tiers, tool-call loops, multi-agent orchestration—so you don’t have to explain what a vector store looks like. The output is pure inline SVG with no external font dependencies, ready for docs, slide decks, or READMEs.

The interesting bit

The generator encodes its style guides as an executable system, not just markdown references. It can classify your prompt and apply one of seven template-driven visual languages—from dark-terminal neon to blueprint grid to brand-specific Claude and OpenAI aesthetics—automatically picking palettes, semantic shapes, and swim lanes. An eighth “Dark Luxury” style skips templates entirely; the AI reads a design brief and hand-crafts the SVG like a bespoke commission.

Key highlights

• Eight visual styles, including an AI-authored “Dark Luxury” mode and brand aesthetics tuned for Claude and OpenAI docs
• Full support for all 14 UML diagram types, plus built-in patterns for AI/Agent domains like Mem0 and Agentic Search
• Semantic vocabulary: LLMs render as double-border rectangles, agents as hexagons, vector stores as ringed cylinders
• 40+ product icons with canonical brand colors (Anthropic, Pinecone, Kafka, PostgreSQL, etc.)
• Runs offline with no online tool required; outputs renderer-friendly pure inline SVG

Caveats

• Requires a separate PNG renderer—cairosvg is the recommended default, while puppeteer offers highest fidelity at the cost of a ~150MB Chromium install
• The “Dark Luxury” style is not template-driven, so output may vary between runs
• Documentation centers on Claude Code skill installation; using it as a standalone Python library is not the primary documented path

Verdict

Ideal for AI engineers and devtool founders who need clean, publication-ready architecture diagrams without opening Figma. If your workflow is already happy with Mermaid inside GitHub markdown, the extra visual polish here may be unnecessary.