Optimize text-to-image prompts for Grok and similar image models, especially for aviation posters, safety campaign visuals, official publicity images, and Chinese-language contest briefs.

Optimize text-to-image prompts for Grok and similar image models. Use when the user wants better image generation prompts, poster prompts, competition-grade...

Security Scan

An instruction-only prompt‑engineering skill whose requirements and instructions are coherent with its stated purpose and do not request extra credentials, installs, or unusual system access.

Purpose & Capability

Name/description (image prompt optimization, aviation posters, Chinese contest briefs) match the included instructions and reference patterns; no unrelated credentials, binaries, or install steps are requested.

Instruction Scope

SKILL.md contains only prompt‑engineering guidance and heuristics (prompt structure, negative prompts, aviation guardrails). It does not instruct the agent to read arbitrary host files, access environment variables, call external endpoints, or transmit data outside the user's session. The included reference file is purely guidance for relevant tasks.

Install Mechanism

No install spec and no code files — the skill is instruction-only, so nothing is written to disk or downloaded during install.

Credentials

The skill requests no environment variables, credentials, or config paths. All declared requirements are nil and the instructions do not reference external secrets.

Persistence & Privilege

always is false and the skill is user‑invocable; it does not request elevated persistence or modification of other skills or system settings.

Assessment

This skill is an instruction-only prompt-optimizer and appears internally consistent. Before installing, consider: (1) It can produce very official-looking poster prompts — avoid using it to create deceptive or fraudulent official materials. (2) If you will generate images of real people, ensure you have consent and follow applicable privacy and copyright rules. (3) Because the skill is autonomous-invocation capable by default, be mindful about granting any agent broad autonomy that could generate many images without review. No technical red flags (no installs, no credential requests) were found.

Grok Image Prompt Optimizer

Use this skill when the user wants a prompt rewritten so image quality, composition, and thematic accuracy improve.

Goal

Turn vague or overstuffed requests into prompts that are:

• visually focused
• easy for Grok to parse
• poster-friendly
• print-friendly
• less likely to produce clutter, cheap ad style, or incorrect details

Core workflow

1. Extract the brief into 8 fields:
   • subject
   • action
   • setting
   • required safety/detail elements
   • mood/value signal
   • style
   • composition
   • output constraints
2. Reduce the scene to one main visual idea. If the brief contains too many ideas, choose one hero scene and move the rest into supporting details.
3. Rewrite into a structured prompt instead of a rambling paragraph.
4. Add a matching negative prompt.
5. If the use case is a poster, explicitly require:
   • vertical layout unless told otherwise
   • strong focal point
   • clean background
   • reserved negative space for title/text
   • print-ready detail
6. If the brief involves regulated or technical domains, prioritize plausibility over spectacle.

Prompt structure

Default structure:

[subject], [action], [setting], [key required elements], [mood / value], [visual style], [composition], [lighting / palette], [output format]

For Grok, prefer 1 clean prompt over multiple conflicting clauses.

Default output format

When optimizing a prompt, output:

1. Main prompt (CN)
2. Main prompt (EN)
3. Negative prompt
4. Quick tweak knobs
   • more official
   • more creative
   • warmer
   • stronger poster feeling

Grok-specific heuristics

• Prefer clear nouns and visible actions over abstract slogans.
• Keep 1–3 human subjects unless the user explicitly wants a crowd.
• If the image is for a poster, say "poster composition", "clear focal point", "negative space for headline", "vertical A3".
• If the image should feel official, use words like:
  • professional
  • trustworthy
  • orderly
  • clean
  • premium
  • realistic illustration
• Avoid asking for too many safety devices in equal visual weight. Choose one primary action and let the rest support it.
• If the user says results feel generic, strengthen:
  • camera angle
  • lighting
  • focal hierarchy
  • signature scene detail
  • emotional tone
• If the model keeps making commercial-ad images, add:
  • public service poster
  • official campaign visual
  • not commercial advertising
  • restrained design
• If the model keeps making messy scenes, add:
  • minimal clutter
  • clean cabin background
  • strong central composition
  • limited supporting elements

Technical-domain guardrails

For aviation, transport, healthcare, industrial safety, or emergency imagery:

• keep actions believable
• keep equipment recognizable
• avoid sci-fi styling unless requested
• avoid disaster-movie panic unless requested
• avoid sexualized uniforms or fashion-shoot styling
• avoid impossible cabin layouts

Aviation / cabin-safety pattern

When the brief is about cabin safety posters, use this recipe:

Chinese civil aviation cabin safety poster,
[1 main crew subject or 1 small crew group],
[one concrete safety action],
inside a clean modern aircraft cabin,
[1-3 supporting safety elements],
conveying professionalism, responsibility, warmth, and trust,
realistic illustration, premium official campaign poster,
clean blue-white palette with restrained safety-orange accents,
vertical A3 composition, clear focal point, reserved negative space for Chinese headline and copy, print-ready detail

Good primary actions:

• demonstrating seat belt use
• guiding passengers to stow baggage correctly
• pre-departure cabin safety briefing
• calm emergency procedure demonstration
• assisting compliant passengers during safety preparation

Avoid combining all of these equally in one frame.

Contest-poster rules

If the user is entering a contest, bias toward:

• one memorable hero shot
• strong symbolic clarity
• emotionally legible values
• less stock-photo feeling
• less corporate ad feeling
• more designed poster feeling

Useful style phrases:

• competition-grade poster
• public service campaign visual
• premium realistic illustration
• editorial poster design
• cinematic but restrained lighting

Negative prompt starter

Adapt as needed:

low resolution, blurry, distorted hands, extra fingers, deformed face, messy composition, cluttered background, incorrect equipment details, incorrect cabin layout, cheap commercial advertising style, overdone sci-fi, anime style, childish cartoon style, garish colors, random text, watermark, logo errors

Tuning patterns

If result is too plain

Add:

• dramatic but restrained lighting
• stronger visual hierarchy
• competition-grade poster design
• more iconic hero composition

If result is too busy

Add:

• simplified background
• only one main action
• minimal clutter
• fewer secondary subjects

If result is too much like a photo

Add:

• premium realistic illustration
• poster design quality
• editorial composition

If result is too much like an ad

Add:

• public service campaign poster
• official safety communication visual
• restrained, serious, trustworthy tone

Response style

Be decisive. Do not dump theory unless asked.

When the user provides a brief, produce polished prompts immediately.

Optional reference

If the task is specifically about aviation safety or official poster work, also read:

• references/aviation-poster-patterns.md