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excalidraw

excalidraw is a skill for Claude Code from Agents365-ai/365-skills. It costs 73 tokens per session (6,756 once invoked), scanned A, original, no licence file.

A diagram and visualization tool that creates Excalidraw files, which are editable hand-drawn-style diagrams, and can export them as PNG or SVG images. It is intended for flowcharts, architecture charts, and other visual explanations.

In plain words
What is it for?
Creating flowcharts, architecture diagrams, system visualizations, and diagrams with multiple components or relationships.
Why use it?
It helps represent systems, data flows, and relationships visually when text is harder to follow. The result can remain editable or be exported for sharing.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

not rated 100repo +2 changed 1mo ago A scan 73 tokens no licence

Good fit Creating flowcharts, architecture diagrams, system visualizations, and diagrams with multiple components or relationships.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agents365-ai/365-skills/excalidraw-skill
View source ↗ Agents365-ai/365-skills
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Agents365-ai/365-skills --skill excalidraw-skill
Clone the repo
git clone --depth 1 https://github.com/Agents365-ai/365-skills

Made for: Claude Code.

Its marketplace also offers this one on its own, as the plugin excalidraw — /plugin install excalidraw after adding the marketplace above.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for excalidraw

README.md
[![agentmods](https://agentmods.dev/badge/skills/agents365-ai/365-skills/excalidraw-skill/github.svg)](https://agentmods.dev/skills/agents365-ai/365-skills/excalidraw-skill)
Your own site
<a href="https://agentmods.dev/skills/agents365-ai/365-skills/excalidraw-skill"><img src="https://agentmods.dev/badge/skills/agents365-ai/365-skills/excalidraw-skill/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for excalidraw

Your own site · 80×15
<a href="https://agentmods.dev/skills/agents365-ai/365-skills/excalidraw-skill"><img src="https://agentmods.dev/badge/skills/agents365-ai/365-skills/excalidraw-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,756 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00073 $0.06756
Opus 5.5 $0.00029 $0.02702
Sonnet 5.5 $0.00015 $0.01351
Haiku 4.5 $0.00007 $0.00676

Measured 1mo ago against content hash d45537422d28, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

excalidraw scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/excalidraw_lib.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

metadata: {"version":"1.3.0","openclaw":{"requires":{"bins":["curl"]},"emoji":"🎨"}}
plugins/excalidraw/skills/excalidraw-skill/SKILL.md · 563 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago Changed · +1 lines d45537422d28
  2. 1mo ago Changed · +10 lines 94dd0267e40f
  3. 2mo ago First seen · 552 lines · 73 tokens per session scan A f554c61a46a8

Subscribe to this mod's changes

excalidraw is a skill published in the GitHub repository Agents365-ai/365-skills (100 stars, last pushed 4d ago), with no licence file. It adds 73 tokens to every session and 6,756 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Claude CodeDesign and UXagent-skillsclidiagramdrawioimage-generation
Related

excalidraw compared with skills from other repositories

excalidraw next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
excalidrawAgents365-ai/365-skillsSkill1004d agononeA73Claude Code
drawio-skillAgents365-ai/drawio-skillSkill11k5d agoMITA107Claude Code, Codex
cocosketchSnowflake-Labs/cocoplusSkill7272d agoMITA20Claude Code
diagram-skillCodingFeng101/CanvasAnvilSkill160yesterdayMITA55Codex
cad-skillCodingFeng101/CanvasAnvilSkill160yesterdayMITA53Codex
bruce-drawiobruc3van/bruce-drawioSkill1142mo agoMITA129Claude Code, Codex
FlowForgewentong2022-arch/flowforge-skillSkill1394mo agoMITA153Claude Code