# Midjourney Prompt Engineering

> Use when generating images with Midjourney, constructing MJ prompts, iterating on MJ output quality, choosing between --sref/--oref/style codes, scoring image results, or building reusable prompt patterns. Also use when exploring MJ style codes, animating images, or debugging why a prompt isn't producing the intended result.

- **Type:** Skill
- **Install:** `agentstack add skill-justinperea-midjourney-cc-skill-midjourney-cc-skill`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [JustinPerea](https://agentstack.voostack.com/s/justinperea)
- **Installs:** 0
- **Category:** [Content & Media](https://agentstack.voostack.com/c/content-and-media)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [JustinPerea](https://github.com/JustinPerea)
- **Source:** https://github.com/JustinPerea/midjourney-cc-skill

## Install

```sh
agentstack add skill-justinperea-midjourney-cc-skill-midjourney-cc-skill
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Midjourney Prompt Learning System

A skill that knows Midjourney. The foundation is a structured understanding of Midjourney V7 built from the [official documentation](https://docs.midjourney.com) — every parameter, prompt syntax rule, reference system, and style code mechanic. On top of that, a learning loop: each session extracts patterns from what worked and what didn't, building a knowledge base of craft that improves first-attempt quality over time.

## Architecture

**You are a multimodal reasoning model.** You don't need pipelines — you ARE the visual critic, gap analyzer, and prompt rewriter. You analyze MJ output images directly, score dimensions, identify gaps, and rewrite prompts.

**The one thing you can't do natively is remember across sessions.** That's what the persistent layer provides — the database, patterns, and evidence tracking.

## Knowledge Foundation (ships with the skill)

| File | What It Contains | Source |
|------|-----------------|--------|
| `knowledge/v7-parameters.md` | Every V7 parameter, prompt structure rules, breaking changes from V6 | [Official docs](https://docs.midjourney.com) |
| `knowledge/translation-tables.md` | Visual quality → prompt keyword mappings (lighting, mood, material, color, composition) | Official docs + tested refinements |
| `knowledge/official-docs.md` | Documentation map linking each MJ feature to its official page URL | [docs.midjourney.com](https://docs.midjourney.com) |
| `knowledge/failure-modes.md` | Diagnostic framework for common MJ failure patterns | Session-learned, evidence-backed |
| `knowledge/learned-patterns.md` | Auto-generated pattern summaries (grows through use) | Extracted from sessions |
| `knowledge/keyword-effectiveness.md` | Keyword effectiveness rankings (grows through use) | Extracted from sessions |

The static files (`v7-parameters`, `translation-tables`, `official-docs`) are the skill's baseline knowledge — what a skilled MJ user would know from reading the documentation carefully. The dynamic files (`failure-modes`, `learned-patterns`, `keyword-effectiveness`) are populated through real sessions and grow over time.

## Module Dependencies

| Module | Purpose | Required MCP |
|--------|---------|-------------|
| Core rules (`core-*`) | Reference analysis, prompt construction, scoring, iteration | None |
| Learning rules (`learn-*`) | Pattern lifecycle, reflection, keyword tracking | sqlite-simple |
| Automation rules (`auto-*`) | Browser automation for midjourney.com | playwright |

**Core only** (manual): Load `core-*` rules. Copy prompts to MJ manually.
**Core + Learning**: Add `learn-*` rules + sqlite MCP. Patterns persist across sessions.
**Full system**: Add `auto-*` rules + playwright MCP. Hands-free iteration.

```bash
# SQLite (for learning rules)
claude mcp add sqlite-simple -- npx @anthropic-ai/sqlite-simple-mcp mydatabase.db

# Playwright (for automation rules)
claude mcp add playwright -- npx @playwright/mcp@latest --headed

# Initialize the database
sqlite3 mydatabase.db ` | Pattern-informed prompt for a description |
| `/discover-styles` | Browse and catalog MJ style codes |
| `/validate-pattern [id]` | Mark pattern as validated or contradicted |
| `/forget-pattern [id]` | Deactivate a pattern |

## Key Principle

Every pattern must have logged evidence. The system learns from real iteration data, not assumptions. Confidence levels (low/medium/high) reflect how many times a pattern has been tested and its success rate.

## Full Reference

For the complete compiled reference combining all rules, see `AGENTS.md`.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [JustinPerea](https://github.com/JustinPerea)
- **Source:** [JustinPerea/midjourney-cc-skill](https://github.com/JustinPerea/midjourney-cc-skill)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-justinperea-midjourney-cc-skill-midjourney-cc-skill
- Seller: https://agentstack.voostack.com/s/justinperea
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.