A command for designing a visual interface with GhostCanvas, an AI-controlled design tool viewed in a browser at localhost:4800. The agent changes the design through MCP tools while the browser view remains read-only.

Use it to create or modify visual interfaces through GhostCanvas and inspect the result in the local browser viewer.

It defines how interface changes should be made and prevents confusion about where editing takes place.

How ddalcu/ghost-canvas configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to ddalcu/ghost-canvas. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/ddalcu/ghost-canvas/main/.claude/commands/design.md

Clone the repo

git clone --depth 1 https://github.com/ddalcu/ghost-canvas

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/ddalcu/ghost-canvas/design/github.svg)](https://agentmods.dev/commands/ddalcu/ghost-canvas/design)

Your own site

<a href="https://agentmods.dev/commands/ddalcu/ghost-canvas/design"><img src="https://agentmods.dev/badge/commands/ddalcu/ghost-canvas/design/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.

Your own site · 80×15

<a href="https://agentmods.dev/commands/ddalcu/ghost-canvas/design"><img src="https://agentmods.dev/badge/commands/ddalcu/ghost-canvas/design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 3,119 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.03119
Opus 5.5	$0.00000	$0.01248
Sonnet 5.5	$0.00000	$0.00624
Haiku 4.5	$0.00000	$0.00312

Measured 2mo ago against content hash b9bf532d4feb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

design 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 2mo 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.

.claude/commands/design.md · 265 lines

The source is not reproduced here

No licence file

Read it on GitHub

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.

2mo ago First seen · 265 lines · 0 tokens per session scan A b9bf532d4feb

Subscribe to this mod's changes

design is a command published in the GitHub repository ddalcu/ghost-canvas (22 stars, last pushed 8mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 3,119 tokens. 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 2026-08-30.

Design and UX

design next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
designddalcu/ghost-canvas	Command	22	8mo ago	none	A	0	Claude Code
profilecathrynlavery/diagram-design	Command	65k	3d ago	MIT	A	16	Claude Code
erne-animateJubaKitiashvili/everything-react-native-expo	Command	50	29d ago	MIT	A	21	Claude Code
ui-flow-reviewMRCalderon3D/everything-game-dev-code	Command	104	28d ago	MIT	A	15	Claude Code
responsive-design-specialistimsaif/design-with-claude	Command	11	yesterday	MIT	A	36	Claude Code
design-auditw2ur/claude-code-setup	Command	2	3d ago	MIT	A	30	Claude Code
ppt-image2-editable-rebuildwwe-dog/ppt-image2-editable-rebuild	Command	204	5mo ago	Unlicense	A	15	Claude Code

ghost-canvas: Command for Claude Code