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excalidraw

excalidraw is a command for coding agents from fakoli/fakoli-plugins. It costs 13 tokens per session (742 once invoked), scanned A, original, MIT.

A command for creating or changing Excalidraw diagram files from a description or codebase analysis. Excalidraw is a web-based whiteboard for hand-drawn-style diagrams.

In plain words
What is it for?
Use it to make architecture diagrams, flowcharts, entity-relationship diagrams, dependency graphs, or edits to existing Excalidraw files.
Why use it?
It provides a repeatable way to turn system information or written requirements into a structured visual diagram.

Command

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the excalidraw-diagram plugin — 1 skill, 1 command, 1 agent shipped together

not rated 4 26d ago A scan 13 tokens original MIT
View the source file fakoli/fakoli-plugins
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.

agentmods
npx agentmods add commands/fakoli/fakoli-plugins/excalidraw
Clone the repo
git clone --depth 1 https://github.com/fakoli/fakoli-plugins

Or install excalidraw-diagram, the plugin that ships this one along with the rest of its 1 skill, 1 command, 1 agent.

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/commands/fakoli/fakoli-plugins/excalidraw.svg)](https://agentmods.dev/commands/fakoli/fakoli-plugins/excalidraw)
Your own site
<a href="https://agentmods.dev/commands/fakoli/fakoli-plugins/excalidraw"><img src="https://agentmods.dev/badge/commands/fakoli/fakoli-plugins/excalidraw.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 742 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00013 $0.00742
Opus 5 $0.00006 $0.00371
Sonnet 5 $0.00003 $0.00148
Haiku 4.5 $0.00001 $0.00074

Measured 4d ago against content hash 695382d83da3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

excalidraw scanned grade A with 0 findings 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 4d ago.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/excalidraw-diagram/commands/excalidraw.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Excalidraw Diagram Generation

Generate an Excalidraw diagram based on the following request.

Request

$ARGUMENTS

Instructions

  1. Analyze the request: Determine what kind of diagram is needed (architecture, flowchart, ER, dependency graph, etc.)

  2. Gather information if needed:

    • If the user references the codebase ("diagram this project", "show the architecture"), use Glob and Grep to analyze the code structure, imports, and components.
    • If the user provides a description, use it directly.
    • If an existing .excalidraw file is referenced, read it first.

  3. Choose the right settings:

    • Layout: top-down for flowcharts/trees, left-right for pipelines/flows, grid for architecture overviews
    • Theme: default for most cases, blueprint for dark-background formal docs, monochrome for print
    • Colors: Use consistent color coding (e.g., blue for services, green for databases, orange for external systems)

  4. Generate skeleton JSON: Create the skeleton with all shapes, arrows, labels, and frames needed.

  5. Run the converter:

    node "${CLAUDE_PLUGIN_ROOT}/scripts/convert.js" /tmp/excalidraw-skeleton.json <output-path>

  6. Report results: Tell the user the file path and how to open it.

Output Path

  • Default: ./<diagram-name>.excalidraw in the current working directory
  • If the user specifies a path, use that
  • For modifications, default to writing a new file (don't overwrite unless asked)

Converter Script

Located at: ${CLAUDE_PLUGIN_ROOT}/scripts/convert.js

Create mode:

node "${CLAUDE_PLUGIN_ROOT}/scripts/convert.js" /tmp/excalidraw-skeleton.json output.excalidraw

Modify mode:

node "${CLAUDE_PLUGIN_ROOT}/scripts/convert.js" --modify existing.excalidraw /tmp/excalidraw-additions.json output.excalidraw

Skeleton Format

Write the skeleton JSON to /tmp/excalidraw-skeleton.json before running the converter. See the excalidraw skill for full format documentation.

Read the full file on GitHub · 75 lines

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. 4d ago First seen · 75 lines · 13 tokens per session scan A 695382d83da3

Subscribe to this mod's changes

excalidraw is a command published in the GitHub repository fakoli/fakoli-plugins (4 stars, last pushed 26d ago), licensed MIT. It adds 13 tokens to every session and 742 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

ai-toolsanthropicclaudeclaude-codeclaude-code-pluginsplugin-marketplace
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