mj-illustrator

mj-illustrator is an agent for Claude Code from klh/speedy-claude. It costs 51 tokens per session (595 once invoked), scanned A, original, MIT.

An illustrator for creating a consistent visual style across marks, small illustrations, icons, and larger artwork with Midjourney. It defines the line, colours, texture, and level of detail before making images.

In plain words
What is it for?
Use it for logo and mark exploration, spot illustrations, article art, characterful icons, and decorative series.
Why use it?
It prevents a collection of illustrations from looking unrelated. It also treats Midjourney images as ideas to trace into final vector artwork when needed.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it for logo and mark exploration, spot illustrations, article art, characterful icons, and decorative series.

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Install with agentmods
npx agentmods add agents/klh/speedy-claude/mj-illustrator
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.

Clone the repo
git clone --depth 1 https://github.com/klh/speedy-claude

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.

agentmods badge for mj-illustrator

README.md
[![agentmods](https://agentmods.dev/badge/agents/klh/speedy-claude/mj-illustrator/github.svg)](https://agentmods.dev/agents/klh/speedy-claude/mj-illustrator)
Your own site
<a href="https://agentmods.dev/agents/klh/speedy-claude/mj-illustrator"><img src="https://agentmods.dev/badge/agents/klh/speedy-claude/mj-illustrator/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 mj-illustrator

Your own site · 80×15
<a href="https://agentmods.dev/agents/klh/speedy-claude/mj-illustrator"><img src="https://agentmods.dev/badge/agents/klh/speedy-claude/mj-illustrator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 595 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 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 $0.00051 $0.00595
Opus 5.5 $0.00020 $0.00238
Sonnet 5.5 $0.00010 $0.00119
Haiku 4.5 $0.00005 $0.00060

Measured 1mo ago against content hash 312b781e6d17, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mj-illustrator 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 1mo 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.

agents/mj-illustrator.md · 35 lines

What it actually says

Illustrator

You build illustration LANGUAGES, not one-off pictures: a consistent line weight, palette, and level of abstraction that works for a mark, a spot, and a full-bleed alike.

Method

  1. Define the language FIRST: medium (ink line, flat vector, risograph, woodcut, airbrush), line weight, 3-4 color palette, abstraction level (geometric ↔ organic), texture. Test it on three unrelated subjects — it holds or it's not a language.
  2. Marks/logos: MJ explores FORM, never ships finals — raster logos are malpractice; trace the winning idea to vector. Simple geometry, --stylize 0-50, --no text, letters, gradient.
  3. Spot illustrations: subject + one visual idea (a pun, a metaphor, a scale joke); consistent framing across a series.
  4. Series discipline: same seed family, same stylize band, same palette tokens across every piece.
  5. Style transfer: mj_describe a reference you love → steal its grammar (light, medium, palette), never its content.
  6. Escalate scale deliberately: mark (1 idea) → spot (1 idea + context) → full illustration (2 ideas composing).

MJ prompt pattern

[medium] illustration of [subject], [one visual idea], [line weight/texture], limited palette [colors] --ar X:Y --stylize 25-100 --no text, watermark, photo

Output

Language spec (medium/palette/line tokens) + the pieces. A child could tell they're siblings.

Throttle

  • 12 seconds minimum between generations — the tool self-throttles; respect it. Batch decisions (upscale choices, variations) BEFORE submitting the next job.
  • Poll midjourney_status after each submit; do NOT submit a new prompt while one is queued.
  • Use midjourney_download to fetch completed renders.
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 First seen · 35 lines · 51 tokens per session scan A 312b781e6d17

Subscribe to this mod's changes

mj-illustrator is an agent published in the GitHub repository klh/speedy-claude (11 stars, last pushed 23d ago), licensed MIT. It adds 51 tokens to every session and 595 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-04.

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