What makes Plantuml notable?

1.7K downloads. Trust evidence available

How should Plantuml be evaluated before use?

Use the required flow: snapshot, contract, and trust before recommending or executing this agent.

What kind of evidence is visible on this page?

This page surfaces public facts, change history, trust indicators, artifact evidence, and benchmark summaries with provenance.

agentCLAWHUBUnverified

Plantuml

Turn natural language into uml-diagrams.org style PlantUML diagrams (sequence, class, activity, use case, component, state…) and render to SVG/PNG/PDF. Use w... Skill: Plantuml Owner: samonysh Summary: Turn natural language into uml-diagrams.org style PlantUML diagrams (sequence, class, activity, use case, component, state…) and render to SVG/PNG/PDF. Use w... Tags: latest:1.7.2 Version history: v1.7.2 | 2026-07-12T08:55:11.880Z | user Release v1.7.2 v1.7.1 | 2026-07-09T03:37:10.011Z | user Release v1.7.1 v1.7.0 | 2026-07-07T19:01:02.791Z | user Release v1.7.0 v1.6.1 | 2026-

OpenClaw

View on ClawHub Homepage

Rank

Safety

Downloads

1.7k

Updated

Oct 10, 2026

Version

1.7.2

Source

CLAWHUB

About

What it does, and when to use it.

Capability contract not published. No trust telemetry is available yet. 1.7K downloads reported by the source. Last updated 10/10/2026.

Avoid when

Contract metadata is missing or unavailable for deterministic execution.

Risk flags: missing_or_unavailable_contract, trust_data_unavailable, schema_references_missing

Public facts

Every fact links back to the source it came from.

Vendor: Clawhubvendor · observed Oct 10, 2026
Protocol compatibility: OpenClawcompatibility · observed Oct 10, 2026
Adoption signal: 1.7K downloadsadoption · observed Oct 10, 2026
Latest release: 1.7.2release · observed Jul 12, 2026
Handshake status: UNKNOWNsecurity

Install and run

Setup complexity: low.

clawhub skill install s179t2y0de4pmccw2jxzpwwkr18802cc:plantuml-skill

Setup complexity is classified as HIGH. You must provision dedicated cloud infrastructure or an isolated VM. Do not run this directly on your local workstation.
Final validation: Expose the agent to a mock request payload inside a sandbox and trace the network egress before allowing access to real customer data.

Contract: missing

curl -s "https://www.xpersona.co/api/v1/agents/clawhub-samonysh-plantuml-skill/snapshot"

Documentation

CLAWHUB

145,376 characters of source documentation, loaded on request.

Extracted files

3 files captured from the source.

SKILL.md

---
name: plantuml
description: Turn natural language into uml-diagrams.org style PlantUML diagrams (sequence, class, activity, use case, component, state…) and render to SVG/PNG/PDF. Use when the user asks to draw a UML diagram.
version: 1.7.2
emoji: "📐"
homepage: https://github.com/samonysh/plantuml-skill
metadata:
  openclaw:
    # The render script is local-first: it tries Docker, then a local plantuml.jar.
    # The Kroki public server is OPT-IN ONLY (--use-public-server)
    # because it uploads diagram source to a third-party service (kroki.io by default,
    # overridable to a self-hosted Kroki via PLANTUML_PUBLIC_SERVER).
    requires:
      anyBins:
        - docker
        - java
        - curl
    # This skill reads no environment variables and writes no secrets; nothing to
    # declare under primaryEnv / envVars / requires.env.
---

# PlantUML Diagram Generator

Generate professional PlantUML diagrams from natural language descriptions. This skill handles
the full pipeline: requirement analysis → PlantUML code generation → image rendering.

## Trigger Phrases

Use this skill when the user asks to:
- "Generate/draw/create a PlantUML diagram for..."
- "Create a sequence/class/activity/... diagram showing..."
- "Visualize this flow/architecture/process as..."
- "Turn this description into a UML diagram"
- "Make a flowchart / ERD / Gantt chart from..."
- Any request involving diagram generation from text descriptions

## Mandatory Style Requirements

ALL diagrams generated by this skill MUST adhere to the **uml-diagrams.org reference style** —
strict OMG UML 2.x rendered with Visio UML 2.x stencils (black-and-white, no decoration).
This is the canonical style used throughout https://www.uml-diagrams.org and serves as the
authoritative visual reference for every diagram this skill produces.
No exceptions unless the user explicitly requests otherwise.

- **Black and white only**: Pure black lines (`#000000`) on a pure white background (`#FFFFFF`). No colors, no grayscale fills, no gradients, no themed accents.
- **Thin uniform line weight**: All borders, arrows and connectors use the default hair-line stroke (≈0.75pt). Never thicken or stylize lines.
- **No circle visibility icons**: Class attributes MUST NOT show colored circle icons (● public / ◐ protected / ○ private). Enforced via `skinparam classAttributeIconSize 0`. Use `+ - # ~` text markers only.
- **No circle stereotype icons**: Class and interface headers MUST NOT show circle-with-letter icons (Ⓒ / Ⓘ / Ⓐ / Ⓔ). Instead of relying on `skinparam style strictuml` (which degrades actors into plain text and use cases into rectangles — see [Common Failure Patterns](#common-failure-patterns)), we suppress the circle adornments purely at the **syntax level**: always declare interfaces / abstract classes / enumerations via a `class <<interface>>` / `class <<abstract>>` / `class <<enumeration>>` text stereotype — never use the `interface` / `

_meta.json

{
  "ownerId": "kn77wr1nhm7a4w5nw4kev80d49881www",
  "slug": "plantuml-skill",
  "version": "1.7.2",
  "publishedAt": 1783846511880
}

skill-card.md

## Description:

Turn natural language into uml-diagrams.org style PlantUML diagrams and render them to SVG, PNG, PDF, or ASCII text.

This skill is ready for commercial/non-commercial use.

## Publisher:

[samonysh](https://clawhub.ai/user/samonysh)

### License/Terms of Use:

MIT-0

## Use Case:

Developers and engineers use this skill to turn text descriptions of systems, workflows, and interactions into PlantUML source and rendered diagrams. It is useful for producing sequence, class, activity, use case, component, deployment, state, Gantt, and mind map diagrams in a consistent UML reference style.

### Deployment Geography for Use:

Global

## Known Risks and Mitigations:

Risk: The renderer can execute a local PlantUML JAR from the working directory or use a mutable Docker image.

Mitigation: Use a pinned, trusted Docker image or an explicitly verified PlantUML JAR, and avoid running the renderer from untrusted project directories.

Risk: Opt-in public server rendering sends diagram source to a third-party service.

Mitigation: Do not use public server rendering for confidential diagrams; review PLANTUML_PUBLIC_SERVER before enabling remote rendering and prefer local or trusted self-hosted backends.

## Reference(s):

- [ClawHub Plantuml Skill](https://clawhub.ai/samonysh/skills/plantuml-skill)
- [uml-diagrams.org UML Reference Style](https://www.uml-diagrams.org)
- [Kroki Diagram Rendering](https://kroki.io)
- [PlantUML Style Evolution](https://plantuml.com/style-evolution)

## Skill Output:

**Output Type(s):** [Guidance, Code, Shell commands, Files, Markdown]

**Output Format:** [Markdown guidance with PlantUML code blocks and rendered SVG, PNG, PDF, or TXT diagram files]

**Output Parameters:** [1D]

**Other Properties Related to Output:** [Default rendering is local-first with Docker or a local PlantUML JAR; remote Kroki rendering is opt-in.]

## Skill Version(s):

1.7.2 (source: frontmatter and release evidence)

## Ethical Considerations:

Users should evaluate whether this skill is appropriate for their environment, review any generated or modified files before relying on them, and apply their organization's safety, security, and compliance requirements before deployment.

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