SkillsAdd

modelscope.cn

plantuml

Generates diagrams from text using PlantUML.

Installation

$ npx skills add https://modelscope.cn
View on skills.sh ↗ Website ↗

Summary

  • Generates diagrams from text using PlantUML.
  • Use when creating sequence diagrams, class diagrams, activity diagrams, C4 architecture diagrams, Gantt charts, mind maps, ER diagrams, or any visual diagram.
  • Triggers on: diagram requests, architecture visualization, UML, flowcharts, system design, data modeling.

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More details

Agent compatibility

Declared targets from SKILL.md / docs. Unmarked agents are not listed — the skill may still install via the CLI.

Claude Code Not declared
Cursor Not declared
Codex Not declared
GitHub Copilot Not declared
Windsurf Not declared
Gemini CLI Not declared
Cline Not declared
OpenCode Not declared

Package contents

Files included with this skill beyond the listing page.

  • skill md SKILL.md 3,315 B

History

  1. First recorded snapshot · 0 installs

SKILL.md

PlantUML Diagram Generator

Generate diagrams from text descriptions using PlantUML.

Execution

Use the wrapper script [scripts/generate-diagram.sh](scripts/generate-diagram.sh):

# File-based (creates .png next to .puml, reports output path)
./scripts/generate-diagram.sh diagram.puml

# SVG output
./scripts/generate-diagram.sh --svg diagram.puml

# Pipe mode
echo '@startuml
Alice -> Bob: Hello
@enduml' | ./scripts/generate-diagram.sh --pipe > output.png

The script validates input files exist and reports generated file paths on success. After generating, use the Read tool to display the image to the user.

Diagram Types

UML Diagrams (@startuml/@enduml)

Type Key Syntax
Sequence A -> B: msg, A --> B: response (dashed), A ->> B: async
Class class Name { +public() \n -private \n #protected }
Activity :action;, if (cond) then (yes) else (no) endif, start/stop
State [*] --> State1, State1 --> State2 : event
Use Case actor User, usecase (Login), User --> (Login)
Component component [Name], [A] --> [B]
Deployment node Server { artifact App }

Non-UML Diagrams

Type Start/End Tags Example
Mind Map @startmindmap/@endmindmap Root \n Branch \n Leaf
Gantt @startgantt/@endgantt [Task] requires 5 days
ER @startuml entity User { *id : int }
JSON @startjson/@endjson Direct JSON visualization
YAML @startyaml/@endyaml Direct YAML visualization

C4 Architecture Diagrams

Include the appropriate level:

!include <C4/C4_Context>    ' Level 1: System Context
!include <C4/C4_Container>  ' Level 2: Containers
!include <C4/C4_Component>  ' Level 3: Components

Key macros:

  • Person(alias, "Label", "Description")
  • System(alias, "Label", "Description") / System_Ext() for external
  • Container(alias, "Label", "Tech", "Description") / ContainerDb() for databases
  • Component(alias, "Label", "Tech", "Description")
  • SystemBoundary(alias, "Label") { ... } / ContainerBoundary()
  • Rel(from, to, "Label", "Tech") for relationships
  • SHOW_LEGEND() at end for legend

Quick Reference

See [references/syntax.md](references/syntax.md) for complete syntax examples of all diagram types.

Output Formats

Flag Format
(default) PNG
--svg SVG (scalable)
--pdf PDF
--txt ASCII art
--utxt Unicode ASCII art

Workflow

  1. Write .puml file with diagram code
  2. Run ./scripts/generate-diagram.sh file.puml
  3. If error, check stderr for syntax issues (usually line numbers and descriptions)
  4. Use Read tool to display resulting image to user

Notes

Script Execution: Scripts should be executed from the skill directory or with full paths. They use Nix shebangs so no manual dependency installation is required.