Banner Creator

Plugin Active

Create banners using AI image generation. Discuss format/style, generate variations, iterate with user feedback, crop to target ratio for GitHub, Twitter, LinkedIn, etc.

Purpose

To enable users to easily create professional-looking banners and headers for their online profiles and projects using AI, with an iterative design process.

Features

AI banner generation
Iterative design with user feedback
Cropping to target aspect ratios
Support for multiple platforms (GitHub, Twitter, LinkedIn)
Preview generation

Use Cases

Creating custom banners for GitHub READMEs.
Designing professional headers for social media profiles.
Generating hero images for websites or presentations.
Iterating on banner designs based on user preferences.

Non-Goals

Advanced image editing beyond cropping and basic AI composition.
Managing or hosting generated banner assets.
Providing a full design suite; focus is on AI banner generation.

Documentation

warning:Configuration & parameter referenceThe SKILL.md documentation mentions required API keys and skills but does not detail specific parameters for the scripts or their defaults.

Maintenance

info:Dependency ManagementThe plugin lists dependencies in SKILL.md but does not appear to have explicit mechanisms like Dependabot or vulnerability scanning for them.

Security

warning:Secret ManagementThe SKILL.md mentions a `GEMINI_API_KEY` which needs to be set in the environment, but there is no explicit mention of how it is handled or if it is sensitive in userConfig.
warning:Keychain-stored secretsThe `GEMINI_API_KEY` is mentioned as an environment variable, but it is not explicitly routed through `userConfig` with `sensitive: true` which is the recommended practice for keychain storage.

Code Execution

warning:ValidationWhile the documentation outlines parameters and scripts, there is no explicit mention of a schema library for input validation or sanitization within the provided scripts.
warning:Error HandlingThe SKILL.md outlines a workflow but does not detail specific error handling mechanisms within the Python scripts for handling ambiguous states or reporting structured errors.
info:LoggingThe SKILL.md describes saving output files to a specific directory, which serves as a form of logging for generated assets, but no dedicated audit log is mentioned.

Portability

warning:Runtime stabilityThe plugin requires Python 3 and assumes specific script executability, which might not be universally available or configured identically across all environments.

Errors

warning:Actionable error messagesWhile the workflow describes expected outcomes, specific error messages and remediation steps for script failures are not detailed in the SKILL.md.

Execution

info:Pinned dependenciesThe plugin has a lockfile for its own dependencies, but the SKILL.md mentions external skills (`nanobanana`) and a Python script without explicit pinning or interpreter declarations.

Installation

First, add the marketplace

/plugin marketplace add ReScienceLab/opc-skills

/plugin install banner-creator@opc-skills

Contains 1 extensions

Skill (1)

Banner Creator Skill

Create banners using AI image generation. Discuss format/style, generate variations, iterate with user feedback, crop to target ratio. Use when user wants to create a banner, header, hero image, cover image, GitHub banner, Twitter header, or readme banner.