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nanobanana-ppt

AI-powered PPT generation with document analysis and styled images via the NanoBanana stack. Combines image generation with structured deck output.

42

Quality

42%

Does it follow best practices?

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SecuritybySnyk

Low

Low-risk findings worth noting

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tessl review fix ./skills/nanobanana-ppt/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

35%

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

This is a thin catalogue entry that advertises an upstream bundle rather than providing usable skill instructions. It is concise and organized but not actionable — Claude cannot execute the skill from this body alone.

Suggestions

Provide concrete, executable guidance for running the skill (real install command or the key script invocation) instead of pointing at an external README.

Replace the `open https://...` pseudo-command with a genuine instruction (e.g. `git clone` + path to the skill entry script) or a numbered install sequence.

Either bundle the upstream references locally under references/scripts/assets and link them one level deep, or clearly document that this entry is a pointer and what the agent should do once the upstream bundle is installed.

DimensionReasoningScore

Conciseness

The body is short (~25 lines) and avoids explaining concepts Claude already knows, but it repeats the frontmatter description verbatim and pads with a non-instructional `open https://...` line that could be tightened.

2 / 3

Actionability

There is no executable code or command to run the skill; 'Inspect the upstream README' and `open https://github.com/...` describe rather than instruct, and `open` is a platform-ism rather than copy-paste guidance.

1 / 3

Workflow Clarity

Steps are implied (install upstream bundle, then invoke by name or trigger), but there is no real sequence with checkpoints and the actual procedure is deferred entirely to an external README, leaving the single action ambiguous.

2 / 3

Progressive Disclosure

Sections (What it does / Source / How to use) are organized, but there are no local bundle files (references/scripts/assets absent) and the only 'reference' is an external GitHub URL rather than a one-level-deep navigable local file.

2 / 3

Total

7

/

12

Passed

Description

50%

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 conveys a recognizable domain but stays generic, jargon-heavy, and provides no explicit 'when to use' guidance. It is above vague filler like 'Helps with documents' but well short of the anchored good examples.

Suggestions

Add an explicit 'Use when...' clause naming natural user phrases (e.g. 'Use when creating PowerPoint decks, converting documents to slides, or generating styled presentation images').

Replace jargon ('NanoBanana stack', 'structured deck output') with concrete user-facing actions ('generate slides', 'analyze a document into a deck', 'produce styled images per slide').

Include common natural terms users would actually say ('PowerPoint', 'slides', 'presentations', 'PDF/Word to PPT') to improve trigger coverage.

DimensionReasoningScore

Specificity

Names the domain ('PPT generation', 'document analysis', 'styled images', 'NanoBanana stack') and some actions, but the actions ('generation', 'analysis', 'combines') are generic rather than a comprehensive list of concrete capabilities like the extract/fill/merge anchor.

2 / 3

Completeness

It states what the skill does but lacks any 'Use when...' clause or equivalent explicit trigger guidance, which per the judging guidelines caps completeness at 2.

2 / 3

Trigger Term Quality

'PPT' and 'document' are relevant keywords, but the description leans on jargon ('NanoBanana stack', 'structured deck output') and omits common natural variations users would say ('PowerPoint', 'slides', 'presentations').

2 / 3

Distinctiveness Conflict Risk

The PPT-generation niche is somewhat specific, but jargon ('NanoBanana stack') and the absence of explicit triggers in the description leave it overlapping with generic presentation skills rather than a clear distinct niche.

2 / 3

Total

8

/

12

Passed

Validation

93%

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

Validation15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

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

Warning

Total

15

/

16

Passed

Repository
nexu-io/open-design
Reviewed

Table of Contents

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