Html Diagram
Create a self-contained HTML file for visualizing architecture and understanding the stack with a high-quality SVG diagram. Use when the user wants a full-screen diagram, wants the output to be light on prose, or wants an HTML artifact that is mostly there to make the architecture click fast.
Install
$ agentstack add skill-plannotator-effective-html-html-diagram ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-plannotator-effective-html-html-diagram) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
HTML Diagram
Review the SVG diagrams used throughout references/html-effectiveness/.
There are a bunch in there, and some of them are focused on architecture and whatnot.
After reviewing them, create an HTML file that is strictly for visualizing the architecture and understanding the stack.
It should not be prose-heavy. It should simplify more into a full-screen diagram and whatnot.
Build a high-quality diagram in SVG. Take your time iterating on the diagram more than anything.
If it makes sense, make the diagram interactive and able to visualize and animate different sequences of system behavior.
Also review references/architecture-example.html — a finished example of this skill done well (full-screen SVG stage, clickable nodes, flow chips that light up and animate request paths).
Always include dark mode: hand-rolled CSS variables on :root / html.dark, a small theme toggle button, localStorage persistence, and an apply-before-paint script in ` (default to prefers-color-scheme`). Style the SVG through CSS classes using those variables — never hard-coded hex inside the SVG — so the diagram follows the theme.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: plannotator
- Source: plannotator/effective-html
- License: MIT
- Homepage: https://plannotator.ai
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.