blog-image

Generate one optimized Nanobanana Pro prompt for a blog image.

Step 1: Pick the mode

Mode	Use when the user wants...	Goal
Cover	A header, hero, thumbnail, or scroll-stopper	Visual impact — abstract and attention-grabbing
Illustration	An in-post diagram, workflow, comparison, or concept explainer	Clarity — literal and educational

If the user supplies a blog title for a cover, treat it as a titled cover (title becomes the focal point).

Step 2: Apply the mode spec (subagent)

Read the corresponding reference file for the chosen mode:

• Cover → references/cover.md
• Illustration → references/illustration.md

Apply all style rules, palette constraints, and formatting guidelines from that file.

Step 3: Write the prompt

Use this structure:

Mode: [Cover / Illustration]

Focus: [One-line description of the visual's purpose]

[ASPECT] [TYPE], [STYLE DESCRIPTORS]. [BACKGROUND].

[LAYOUT — structure, placement, spacing]

[ELEMENTS — each with color, position, label, visual cue]

[RELATIONSHIPS — what connects, groups, or contrasts]

[STYLE NOTES from the mode spec above]

Keep the prose tight. Every sentence should either describe something the generator needs to draw or a style rule it needs to follow.

Step 4: Review and tighten

Before returning the prompt, check it once:

• Remove repeated facts or labels.
• Labels should name entities of the diagram, not effects.
• Return only the cleaned-up prompt.