AI image generation and editing for blog content powered by Gemini via MCP. Generates hero images, inline illustrations, social preview cards, and OG images, and edits existing ones. Supports 6 domain modes (Editorial, Product, Landscape, UI/Web, Infographic, Abstract). Works standalone or internally from blog-write and blog-rewrite; falls back gracefully when MCP is unavailable. Use when user says "blog image", "generate hero image", "blog illustration", "edit blog image", "OG image".
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Critical
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Security
1 critical severity finding. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
Detected a prompt injection in the skill instructions. The skill contains hidden or deceptive instructions that fall outside its stated purpose and attempt to override the agent’s safety guidelines or intended behavior.
The skill explicitly instructs users/agents to rephrase and retry prompts to circumvent image safety filters and persist until successful, which is guidance to evade safety controls without clear malicious intent.
Low
Low-risk findings.
2 low severity findings. Worth noting, but not necessarily harmful.
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
The required runtime workflow only ingests outsider-provided free text as the user’s explicit command arguments (e.g., `/blog image generate <idea>` or `/blog image edit <path> <instructions>`) and then constructs an internal prompt for `gemini_generate_image`/`gemini_edit_image`, with no step that reads arbitrary outsider-authored external feed content.
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
The skill configures an MCP server that runs "npx -y @ycse/nanobanana-mcp@1.1.1" (installed/executed at runtime) which fetches and runs remote npm package code linked from https://github.com/YCSE/nanobanana-mcp, so remote code is executed as a required runtime dependency.
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