assets

A command guide for generating common project graphics, such as app icons, website favicons, social images, and thumbnails.

In plain words
What is it for?
Use it when preparing an app's icon files, browser icons, social-media graphics, or thumbnail images.
Why use it?
It defines an asset-generation workflow and safety checks for handling command input before running shell commands.

Command

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/thrownlemon/claude-code-plugins/assets
Clone the repo
git clone --depth 1 https://github.com/ThrownLemon/claude-code-plugins
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 907 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00012 $0.00907
Opus 5 $0.00006 $0.00453
Sonnet 5 $0.00002 $0.00181
Haiku 4.5 $0.00001 $0.00091

Measured yesterday against content hash f47945d32153, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

assets scanned grade C 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 yesterday.

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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

1. **Reject dangerous tokens.** If a value contains `$(`, backticks, `;`, `|`, `&`, `>`, `<`, or starts with `-` (could be mistaken for a flag), refuse and ask the user to rephrase. **Double-quoting does NOT block comman
plugins/imagegen/commands/assets.md · 108 lines

How it starts

The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Input Safety — apply before any Bash invocation

Treat every $ARGUMENTS.* value as untrusted input. Before passing any value to the Bash tool:

  1. Reject dangerous tokens. If a value contains $(, backticks, ;, |, &, >, <, or starts with - (could be mistaken for a flag), refuse and ask the user to rephrase. Double-quoting does NOT block command substitution"$(rm -rf /)" still executes inside double quotes.
  2. Prefer the Bash tool's argv contract over constructed shell strings. When you must use a shell string, single-quote the value and escape embedded single quotes ('\''), or build the command via printf %q.
  3. Any "$ARGUMENTS.foo" patterns shown below are illustrative. Sanitize the value first; never blindly substitute.

Asset Pipeline

Generate complete asset sets for your project including app icons, favicons, social media images, and thumbnails.

Asset Types

Icons (icons)

App icons in multiple sizes for iOS, Android, macOS, Windows:

  • Sizes: 16, 32, 48, 64, 128, 256, 512, 1024px

Favicons (favicons)

Web favicons and touch icons:

  • PNG files: 16, 32, 48, 180, 192, 512px
  • favicon.ico (multi-resolution)
  • apple-touch-icon.png

Social (social)

Social media images:

  • og - Open Graph (1200x630)
  • twitter - Twitter Card (1200x628)
  • linkedin - LinkedIn Banner (1200x627)
  • instagram - Instagram Post (1080x1080)
  • instagram_story - Instagram Story (1080x1920)

Thumbnails (thumbnails)

Content thumbnails:

  • youtube - YouTube thumbnail (1280x720)
  • vimeo - Vimeo thumbnail (1280x720)
  • blog - Blog post image (800x450)
  • square - Square thumbnail (800x800)

Examples

/imagegen:assets --type icons --prompt "Minimalist owl logo in blue"
/imagegen:assets --type favicons --prompt "Letter T in a circle"
/imagegen:assets --type social --prompt "Tech blog header with abstract shapes"
/imagegen:assets --type social --prompt "Product launch" --variants og twitter
/imagegen:assets --type thumbnails --prompt "Tutorial video cover"

Read the full file on GitHub · 108 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. yesterday First seen · 108 lines · 12 tokens per session scan C f47945d32153

Subscribe to this mod's changes

assets is a command published in the GitHub repository ThrownLemon/claude-code-plugins (2 stars, last pushed 2mo ago), licensed MIT. It adds 12 tokens to every session and 907 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.