Fireworks Tech Graph: Natural Language to Technical Diagrams (+ AutoFigure Comparison)

By Prahlad Menon 4 min read

Describing a system architecture and getting a polished diagram in seconds β€” that’s the promise of Fireworks Tech Graph, a Claude Code skill that turns natural language into publication-ready technical diagrams.

We covered AutoFigure earlier this year for scientific figure generation. Fireworks Tech Graph tackles a different problem: engineering and architecture diagrams for developers, not researchers.

What Is Fireworks Tech Graph?

A Claude Code skill that generates SVG + PNG diagrams from natural language. Describe your system, pick a style, get a diagram.

"Generate a Mem0 memory architecture diagram, dark style"
  β†’ Classifies: Memory Architecture, Style 2 (Dark Terminal)
  β†’ Generates SVG with swim lanes, cylinders, semantic arrows
  β†’ Exports 1920px PNG

Key capabilities:

  • 8 visual styles β€” From clean corporate to neon terminal aesthetics
  • 14 UML diagram types β€” Full UML coverage (class, sequence, activity, deployment, etc.)
  • AI/agent domain patterns β€” RAG, Agentic Search, multi-agent, tool call flows built-in
  • Semantic shape vocabulary β€” LLMs get double-border rectangles, agents get hexagons, vector stores get ringed cylinders
  • Smart arrow colors β€” Dash patterns and colors encode meaning (read vs write vs async)
  • 40+ product icons β€” OpenAI, Anthropic, Pinecone, Kafka, PostgreSQL with brand colors

The 8 Visual Styles

Unlike most diagram generators that output one generic look, Fireworks Tech Graph has distinct aesthetics:

StyleLookBest For
1. Flat IconWhite, clean, semantic arrowsProduct docs, READMEs
2. Dark TerminalNeon accents, monospaceDev blogs, terminal UIs
3. BlueprintDeep blue, grid lines, cyan strokesEngineering specs
4. Notion CleanMinimal white, single accentDocumentation
5. GlassmorphismFrosted cards, soft glowModern presentations
6. Claude OfficialWarm cream, Anthropic paletteAnthropic-themed docs
7. OpenAI OfficialPure white, green accentsOpenAI-themed content
8. Dark LuxuryBlack + gold, serif titlesPremium presentations

Styles 1-7 are template-driven. Style 8 (Dark Luxury) is AI-authored β€” the model reads style guidelines and hand-crafts the SVG.

Installation

It’s a Claude Code skill, not a standalone app:

npx skills add yizhiyanhua-ai/fireworks-tech-graph

For PNG export, install one renderer:

# Recommended
pip install cairosvg

# Alternatives
brew install librsvg          # macOS
npm install puppeteer          # Highest fidelity, heavyweight

Usage Examples

Basic

Draw a RAG pipeline flowchart

With Style

Draw a microservices architecture diagram, style 3 (blueprint)

AI/Agent Patterns

Generate a Mem0 memory architecture diagram with vector store, 
graph DB, KV store, and memory manager
Draw a Multi-Agent diagram: Orchestrator dispatches 3 SubAgents 
(search / compute / code execution), results aggregated

Full UML

Create a sequence diagram showing OAuth 2.0 authorization code flow

Fireworks Tech Graph vs AutoFigure: When to Use Which

Both generate diagrams from natural language. They target different audiences.

Fireworks Tech GraphAutoFigure
Primary audienceEngineers, developersResearchers, academics
Diagram typesArchitecture, UML, agent flowsScientific method figures
Style control8 preset stylesStyle transfer (match any reference)
OutputSVG + 1920px PNGEditable SVG with embedded editor
Hosted versionNo (Claude Code skill)Yes (deepscientist.cc)
Paper integrationNoYes (PDF β†’ Figure extraction)
Domain knowledgeAI/agent patterns, UMLScientific methodology

Use Fireworks Tech Graph When:

  • You’re documenting a software architecture
  • You need UML diagrams (class, sequence, component, etc.)
  • You want AI agent flow diagrams (RAG, multi-agent, tool calls)
  • You need consistent visual branding (Claude/OpenAI/corporate styles)
  • You’re already using Claude Code

Use AutoFigure When:

  • You’re creating figures for a research paper
  • You need to match another paper’s visual style
  • You want to extract methodology figures from PDFs
  • You need the embedded SVG editor
  • You’re not using Claude Code

Why Not Mermaid or draw.io?

Mermaiddraw.ioFireworks Tech Graph
Natural language inputβœ—βœ—βœ…
AI/agent domain patternsβœ—βœ—βœ…
Multiple visual stylesβœ—Manualβœ… 8 built-in
High-res PNG exportβœ—Manualβœ… Auto 1920px
Semantic arrow colorsβœ—Manualβœ… Auto
No online tool neededβœ…βœ—βœ…

Mermaid requires learning its DSL. draw.io requires clicking around a GUI. Fireworks Tech Graph: describe in English, get a diagram.

Stable Prompt Recipes

The repo includes tested prompts for each style. Here’s the Dark Terminal example:

Draw a tool call flow diagram in style 2 (Dark Terminal).
Show User query, Retrieve chunks, Generate answer, Knowledge base, 
Agent, Terminal, Source documents, and Grounded answer.
Use terminal chrome, neon accents, monospace typography, and 
semantic arrows for retrieval, synthesis, and embedding update.

These regression-tested prompts produce consistent outputs across sessions.

Technical Implementation

Under the hood:

  1. Skill classification β€” Detects diagram type and style from prompt
  2. Domain knowledge β€” Built-in patterns for AI/agent architectures
  3. Semantic vocabulary β€” Shape and arrow rules encoded, not just documented
  4. SVG generation β€” Pure inline SVG, no external font fetching
  5. PNG export β€” cairosvg (recommended), rsvg-convert, or puppeteer

The semantic shape vocabulary is interesting: every component type has a consistent visual representation. LLMs always get double-border rectangles. Agents always get hexagons. This creates instantly recognizable diagrams across styles.

The Bigger Picture

We’ve now covered two text-to-diagram tools:

  • AutoFigure β€” For researchers creating publication figures
  • Fireworks Tech Graph β€” For engineers creating architecture diagrams

Both eliminate the tedious manual drawing step. The difference is domain knowledge: AutoFigure understands scientific methodology and journal aesthetics. Fireworks Tech Graph understands software architecture and AI agent patterns.

As these tools mature, expect more domain-specific variants. Medical diagrams. Financial flowcharts. Legal process maps. The pattern is clear: encode domain expertise into the generation process, not just generic drawing capabilities.

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