midjourney-cc-skill: Instructions file for Codex

AGENTS.md

midjourney-cc-skill AGENTS.md is an instructions file for Codex, OpenCode from JustinPerea/midjourney-cc-skill. It costs 16,847 tokens per session, scanned A, original, MIT.

A reference for creating and evaluating Midjourney image prompts. It explains prompt-writing practices and scores results across seven areas such as subject, lighting, and color.

In plain words
What is it for?
Use it to write Midjourney prompts, review generated images, score each result, and compare improvements across iterations.
Why use it?
It provides a consistent way to assess whether an image matches the requested intent and to identify what needs refinement.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions subagents.

This is JustinPerea/midjourney-cc-skill's own configuration. It tells Codex and OpenCode how to work on midjourney-cc-skill itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything midjourney-cc-skill configures →

Reuse

Borrowing it

Nothing to install: this file belongs to JustinPerea/midjourney-cc-skill. 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/JustinPerea/midjourney-cc-skill/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/JustinPerea/midjourney-cc-skill

Made for: Codex, OpenCode.

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.

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README.md
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Your own site
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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.

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<a href="https://agentmods.dev/instructions/justinperea/midjourney-cc-skill/agents-md"><img src="https://agentmods.dev/badge/instructions/justinperea/midjourney-cc-skill/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16,847 This file is loaded in full into every session.
When invoked 16,847 The same file — it is already loaded in full.
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 $0.16847 $0.16847
Opus 5.5 $0.06739 $0.06739
Sonnet 5.5 $0.03369 $0.03369
Haiku 4.5 $0.01685 $0.01685

Measured 2mo ago against content hash eb2ce9e92f9f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

midjourney-cc-skill AGENTS.md 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.

AGENTS.md · 1,407 lines

How it starts

The opening of the file, as written. The whole thing — 1,407 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Midjourney Prompt Learning System — Complete Reference

Auto-generated from rules/ directory. Do not edit directly. Regenerate with: ./scripts/build.sh


Core Prompt Engineering

Assessment Scoring Guide

How to score Midjourney outputs on 7 standard dimensions, handle agent confidence levels, and work around known limitations.

Score Scale

Score Meaning
0.0-0.2 Completely wrong / not present
0.3-0.4 Vaguely there but wrong execution
0.5-0.6 Partially correct, needs significant work
0.7-0.8 Close, needs refinement
0.9-1.0 Nailed it

Standard Scoring Dimensions (Always Use All 7)

Every iteration must be scored on all 7 dimensions. This ensures batch averages are comparable across iterations and sessions. If a dimension isn't relevant to the intent (e.g., spatial_relationships for a flat graphic), score it 1.0 with a note "not applicable — no spatial element in intent."

Dimension Key What to Assess
Subject subject Does the main subject/form match intent?
Lighting lighting Is the lighting setup correct? (direction, color, intensity, atmosphere)
Color color Are the colors, palette, temperature, saturation correct?
Mood mood Does the overall feeling/emotion match?
Composition composition Is the framing, layout, subject position, depth correct?
Material material Are materials, textures, surface qualities correct?
Spatial Relationships spatial Are grounding, floating, scale, contact points, physics correct?

Score JSON format (use this exact structure for every image):

{
  "subject": 0.85, "lighting": 0.90, "color": 0.88,
  "mood": 0.90, "composition": 0.80, "material": 0.92,
  "spatial": 0.75, "avg": 0.86,
  "notes": "Concrete observations for each dimension"
}

Agent Confidence Flags

For each dimension, the agent should self-assess confidence. Flag dimensions where confidence is low so the user knows where to focus validation:

Read the full file on GitHub · 1,407 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. 2mo ago First seen · 1,407 lines · 16,847 tokens per session scan A eb2ce9e92f9f

Subscribe to this mod's changes

midjourney-cc-skill AGENTS.md is an instructions file published in the GitHub repository JustinPerea/midjourney-cc-skill (16 stars, last pushed 9mo ago), licensed MIT. It adds 16,847 tokens to every session, about $0.0674 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 2026-08-31.

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