Poster and Canvas Design Brief skill for Claude and Codex

Poster and Canvas Design Brief as an AI skill. It asks for Purpose, Headline and key text, Audience and 3 more, then does the rest. Free to install in Claude…

Install it once and Claude or Codex runs it for you. When your request matches, your AI loads the skill, asks for anything it is missing, and works through the template itself. Prefer to fill it in by hand? See the full prompt template.

Download the skill (.zip) · View SKILL.md

When it is used

Use when a poster, social post, or banner needs a design brief with hierarchy, grid, palette, type pairing, and export sizes before it is made. Do not use for creating the artwork itself or planning a multi-page brand identity. Related topics: design, creative.

What it will ask you for

• Purpose (longer free text)
• Headline and key text (longer free text)
• Audience (free text, e.g. "Who sees it and where")
• Mood (choose any: Bold, Quiet, Playful, Premium, Retro, Minimal, Energetic)
• Brand colours or assets (longer free text)
• Formats needed (choose any: A3 print poster, Instagram square, Instagram story, LinkedIn banner, Event screen)

How it works

1. Rank the content so one element dominates, a second reads next, and the rest supports.
2. Describe the grid, margins, focal point, and placement of headline, image, and call to action with the empty space around them.
3. Choose two or three colours plus neutrals, check text contrast, and name the colour that carries the call to action.
4. Pair one display face with one text face with sizes on a ratio, and confirm the headline reads at thumbnail size.
5. List size, safe margins, and layout adaptation for every requested format.

What you get

A brief with a content hierarchy, grid description, palette, type spec, and an export table giving size and margins for each format.

What it watches out for

• Giving every element equal weight, so nothing stands out and the poster is skipped.
• Placing text inside the area that Instagram stories cover with interface elements.
• Judging legibility at full size only, when most people see the piece as a thumbnail.

How to install

Claude.ai and the Claude desktop app

1. Download the skill .zip.
2. Open Settings, then Capabilities, and find Skills.
3. Choose Upload skill and select the .zip.
4. Ask Claude for help with the task. It loads the skill when your request matches.

Claude Code

1. Download the skill .zip.
2. Unzip it into ~/.claude/skills/ (or .claude/skills/ inside a project).
3. Start a new session. Claude Code loads the skill when your request matches.

Codex

1. Download the skill .zip.
2. Unzip it into ~/.agents/skills/ (or .agents/skills/ inside a project).
3. Codex picks it up on its own. Type $ and the skill name to use it, or just ask for the task.

Cursor

1. Download the Cursor rule (.mdc).
2. Save it in .cursor/rules/ inside your project.
3. Cursor's agent applies the rule when your request matches its description.

AGENTS.md (Codex, Cursor, and other coding agents)

1. Copy the AGENTS.md section.
2. Paste it into AGENTS.md at the root of your repository, creating the file if needed.
3. Coding agents that read AGENTS.md follow it when your request fits.