nano-banana-pro

Generate/edit images with Nano Banana Pro (Gemini 3 Pro Image). Use for image create/modify requests incl. edits. Supports text-to-image + image-to-image; 1K/2K/4K; use --input-image.

Install with Tessl CLI

npx tessl i github:Dicklesworthstone/pi_agent_rust --skill nano-banana-pro

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Review — 88%

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Learn more

Validation — 11 / 11 Passed

Validation for skill structure

SKILL.md

Review

Evals

Evaluation results

100%

70%

Coffee Brand Product Hero Image

Draft-to-final image generation workflow

Criteria

Without context

With context

Draft uses 1K resolution

100%

Final uses 4K resolution

100%

4K not used for drafts

50%

100%

Filename timestamp format

100%

Descriptive filename suffix

37%

100%

Absolute path to script

100%

No cd to skill directory

100%

uv run used

100%

Multiple iteration steps

100%

Without context: $0.2104 · 1m 2s · 17 turns · 61 in / 3,675 out tokens

With context: $0.3738 · 1m 11s · 18 turns · 2,240 in / 3,988 out tokens

100%

64%

Product Photo Background Edit

Precise image editing with template and path handling

Criteria

Without context

With context

--input-image flag used

100%

Editing prompt uses 'Change ONLY' structure

16%

100%

Editing prompt preserves other elements

58%

100%

Preflight input file check

100%

No reading image back

100%

Absolute path to script

100%

uv run used

100%

Filename follows timestamp pattern

100%

edit_notes.txt explains approach

70%

100%

Without context: $0.5221 · 1m 58s · 25 turns · 117 in / 6,270 out tokens

With context: $0.4700 · 1m 35s · 26 turns · 2,246 in / 4,810 out tokens

100%

70%

Multi-Resolution Marketing Asset Batch

Resolution mapping and API key argument handling

Criteria

Without context

With context

Thumbnail uses 1K

100%

Web banner uses 2K

100%

Print uses 4K

100%

Uppercase K in resolutions

100%

--api-key argument used

100%

Filename timestamp format

100%

Descriptive filename suffixes

100%

Absolute path to script

100%

uv run used

100%

README documents resolutions

100%

Without context: $0.2708 · 1m 17s · 20 turns · 24 in / 4,253 out tokens

With context: $0.4046 · 1m 23s · 21 turns · 2,243 in / 4,283 out tokens

Evaluated: about 13 hours ago
Agent: Claude Code

Table of Contents

Coffee Brand Product Hero Image Product Photo Background Edit Multi-Resolution Marketing Asset Batch

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