Guides
Choosing between the options, factually.
No winner is declared, because the right answer depends on constraints a web page cannot see.
$curl -fsSL https://lucidtrain.com/install.sh | sh
- Which Architecture Diagram Tool Should You Use?Four approaches, each with a different failure mode. Pick by which failure you can live with.
- Which Diagramming MCP Server Should You Use?The differentiator is not the vendor. It is whether a language model is being asked to do geometry.
- Which Coding Agent for a Large Unfamiliar Codebase?Model quality is table stakes. What separates agents on a big repo is context, review and isolation.
- Which AI Code Security Scanner Should You Use?Three categories, three different blind spots. Most confusion here is a category error rather than a tool choice.
- Which Local LLM Coding Setup Should You Use?The runtime is easy and the agent is easy. The model is where expectations need managing.
Elsewhere
- System Design TemplatesEach template is a real diagram produced by the same layout engine the app runs, not a picture of one.
- AI System DesignThe diagram can cause the code, not just describe it.
- Harness EngineeringAgent equals model plus harness. The harness is the half you can actually change.
- Coding Engines Lucid Train Can DriveThe binary is already on your machine and already signed in. Nothing is proxied and no credential passes through us.
- Dependency and Agent Supply Chain AuditYour packages are audited by everyone. The programs your agent launches are audited by almost no one.
- Grafana and Observability in a Coding AgentNothing is exported to us. It reads the Grafana you already run, with your credential, on your machine.
- AI Design Mode for Web PagesRunning on the Claude Code or Codex CLI you already have, with your repository open beside it.
- Software Architecture GlossaryWhat each term means, where it came from, and where it stops being useful.
- Alternatives to Popular Diagramming and Agent ToolsEach page sorts the field by the reason you are leaving, because that is what decides the answer.
- MCP and Architecture DiagramsYour agent supplies the structure. A constraint solver decides where everything goes.
- Generate a Diagram from Your CodeEvery source below lists the exact files it reads and the constructs it maps to diagram nodes.
- AI Diagram GeneratorsThe agent emits a semantic graph and ELK computes the layout, so overlapping boxes are structurally impossible.
- Compare Lucid TrainEvery page says what the other tool is better at. If that section were empty the comparison would not be worth reading.
- Convert Code and DiagramsEvery conversion page states what survives the round trip and what does not.
- Use CasesEach page includes who it is not for, which is usually the more useful half.
- Beyond DiagramsDiagrams are the front door. These are the rooms behind it.