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nano-banana-pro

Generate or edit images via Gemini 3 Pro Image (Nano Banana Pro).

61

Quality

73%

Does it follow best practices?

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SecuritybySnyk

Low

Low-risk findings worth noting

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tessl review fix ./skills/nano-banana-pro/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

93%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A tight, highly actionable skill body that assumes Claude's competence and provides copy-paste-ready commands for every common case. Only minor improvement possible around explicit verification of successful output.

DimensionReasoningScore

Conciseness

The body is lean — a one-line intro, three copy-paste command blocks, and a tight Notes list — with no over-explanation of concepts Claude already knows; every token earns its place.

5 / 5

Actionability

Fully executable `uv run {baseDir}/scripts/generate_image.py` commands with real flags cover the three common cases (generate, single-image edit, multi-image compose), and the referenced bundle script exists.

5 / 5

Workflow Clarity

The single action is unambiguous and the three invocation variants are clearly separated, but there is no explicit validation/verification checkpoint or error-recovery guidance if the script fails.

4 / 5

Progressive Disclosure

Under 50 lines with well-organized sections (Generate, Edit, Multi-image, API key, Notes) and a single one-level-deep bundle reference; no external file references are needed for this simple skill.

5 / 5

Total

19

/

20

Passed

Description

53%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description states a clear capability with a distinctive tool brand, but lacks explicit trigger guidance ("Use when...") and broader keyword coverage. Adding a when-to-use clause and common synonyms would lift the weaker dimensions.

Suggestions

Append a 'Use when...' clause naming concrete triggers, e.g. 'Use when the user asks to generate, edit, or compose images with Gemini 3 Pro Image / Nano Banana Pro.'

Broaden trigger terms with synonyms and file extensions users naturally say, such as 'create images', 'AI image generation', and '.png/.jpg'.

Mention additional concrete actions (e.g. upscaling, multi-image composition up to 14 inputs) to move specificity from a partial list toward comprehensive coverage.

DimensionReasoningScore

Specificity

Names the image domain and two concrete actions ("Generate or edit images"), but coverage is not comprehensive — no mention of variations like upscaling, style transfer, or batch sizing.

3 / 5

Completeness

The "what" is clear (generate/edit images via Gemini 3 Pro Image), but there is no "Use when..." clause or equivalent trigger guidance, which per the judging guidelines caps completeness at 3.

3 / 5

Trigger Term Quality

"generate images" and "edit images" are natural user phrases and the brand terms (Gemini 3 Pro Image, Nano Banana Pro) aid routing, but common synonyms ("create images", "AI image") and file extensions (.png/.jpg) are missing.

3 / 5

Distinctiveness Conflict Risk

The specific tool branding ("Gemini 3 Pro Image (Nano Banana Pro)") carves a clear niche with only minor overlap risk against generic image-generation skills.

4 / 5

Total

13

/

20

Passed

Validation

81%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation13 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

13

/

16

Passed

Repository
Bitterbot-AI/bitterbot-desktop
Reviewed

Table of Contents

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