canvas-actions

canvas-actions is a skill for Claude Code from 23blocks-OS/ai-maestro-plugins. It costs 53 tokens per session (5,386 once invoked), scanned A, original, MIT.

A tool for creating and managing interactive HTML pages inside the AI Maestro dashboard. Users can view visual data, click controls, submit forms, and see the page update.

In plain words
What is it for?
Use it for dashboards, charts, tables, forms, approval screens, configuration pages, and other interactive displays of data or agent results.
Why use it?
It avoids forcing users to understand structured results through terminal text alone. It provides a visual place to review information and take actions.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/project/src.

Part of the ai-maestro plugin — 8 skills, 3 hooks shipped together

Good fit Use it for dashboards, charts, tables, forms, approval screens, configuration pages, and other interactive displays of data or agent results.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add 23blocks-OS/ai-maestro-plugins
Claude Code
/plugin install ai-maestro

Made for: Claude Code.

Or install ai-maestro, the plugin that ships this one along with the rest of its 8 skills, 3 hooks.

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 canvas-actions

README.md
[![agentmods](https://agentmods.dev/badge/skills/23blocks-os/ai-maestro-plugins/canvas-actions/github.svg)](https://agentmods.dev/skills/23blocks-os/ai-maestro-plugins/canvas-actions)
Your own site
<a href="https://agentmods.dev/skills/23blocks-os/ai-maestro-plugins/canvas-actions"><img src="https://agentmods.dev/badge/skills/23blocks-os/ai-maestro-plugins/canvas-actions/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 canvas-actions

Your own site · 80×15
<a href="https://agentmods.dev/skills/23blocks-os/ai-maestro-plugins/canvas-actions"><img src="https://agentmods.dev/badge/skills/23blocks-os/ai-maestro-plugins/canvas-actions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,386 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 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 5.1 $0.00053 $0.05386
Opus 5 $0.00026 $0.02693
Sonnet 5 $0.00011 $0.01077
Haiku 4.5 $0.00005 $0.00539

Measured 10d ago against content hash a81c6da7971d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

canvas-actions 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 10d 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.

Makes network callslowCapability

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

curl -s http://localhost:23000/api/agents/$AIM_AGENT_ID/canvas
plugins/ai-maestro/skills/canvas-actions/SKILL.md · 521 lines

How it starts

The opening of the file, as written. The whole thing — 521 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Canvas

Create visual, interactive HTML pages that users see in the AI Maestro dashboard. Embed live data, receive structured actions when users interact, and update pages in response.

When to use this skill

Use canvas whenever the output is better experienced visually than as terminal text.

Proactive triggers -- create a canvas when:

  • User asks to see data visually: "show me", "display", "visualize", "report on", "dashboard for", "chart of", "table of", "summary of"
  • User asks for a form or config UI: "let me configure", "settings for", "create a form", "let me pick", "I want to choose"
  • User asks for an approval or review flow: "let me approve", "review these", "I need to decide", "show me the options"
  • User asks you to build something interactive: "build me a", "create a page", "make a UI", "wizard for", "control panel"
  • Your output has structured data: test results, API responses, file listings, metrics, logs, comparisons -- anything that would benefit from sorting, filtering, or visual hierarchy
  • Your output has actions the user should take: approve/reject, select from options, configure settings, trigger operations
  • You are presenting a status or progress report: build status, deployment state, system health, task progress

Do NOT use canvas for:

  • Quick one-line answers
  • Code that should go in a file
  • Terminal commands the user should run
  • Simple text responses

Default behavior: When in doubt, create a canvas. A visual, interactive page is almost always more useful than a wall of terminal text. The user can always read it in the Canvas tab of the dashboard.

Architecture: Data-Driven Interactive Pages

CRITICAL: Canvas pages must be data-driven, not static HTML.

Never hardcode data into HTML elements. Always embed data as JSON in a <script> block and render it with JavaScript. This makes pages interactive (sortable, filterable, searchable) instead of dead static text.

The pattern: Embedded JSON + JS rendering

Read the full file on GitHub · 521 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. 10d ago First seen · 521 lines · 53 tokens per session scan A a81c6da7971d

Subscribe to this mod's changes

canvas-actions is a skill published in the GitHub repository 23blocks-OS/ai-maestro-plugins (9 stars, last pushed 5d ago), licensed MIT. It adds 53 tokens to every session and 5,386 once invoked, about $0.0003 per session on Opus 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 2026-08-31.

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