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pptx

Use this skill any time a .pptx or .potx file is involved in any way — as input, output, or both. This includes: creating slide decks, pitch decks, or presentations; reading, parsing, or extracting text from any .pptx or .potx file (even if the extracted content will be used elsewhere, like in an email or summary); editing, modifying, or updating existing presentations; combining or splitting slide files; working with templates (.potx), layouts, speaker notes, or comments. Trigger whenever the user mentions "deck," "slides," "presentation," or references a .pptx or .potx filename, regardless of what they plan to do with the content afterward. If a .pptx or .potx file needs to be opened, created, or touched, use this skill.

Quality

94%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

88%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.

The content is a strong, highly actionable manual: nearly every line is environment-specific knowledge Claude could not infer, and the workflows bake in validation and feedback loops. Its main weaknesses are mild duplication of a few warnings and a monolithic single-file layout where the design guidance could be moved to reference files.

Suggestions

Deduplicate the thumbnail-overwrite warning and the '--original' rationale by stating each once (e.g., only in the Editing and File QA sections) and cross-referencing from the Scripts table.

Move the Design Ideas section (palette table, layout options, typography details) into a references/ file (e.g. references/design.md) and keep a short summary with a clear link in SKILL.md to reduce always-loaded tokens.

DimensionReasoningScore

Conciseness

The body is dense with environment-specific, non-obvious knowledge (hex-color corruption, 'charSpacing' vs 'letterSpacing', the secondaryValAxis axis-id bug, QA font substitution), but a few warnings are duplicated — the thumbnail-overwrite caveat appears in both the Scripts table and the Editing section, and the '--original' rationale is repeated in the Scripts table and File QA — so it is efficient with minor trimming opportunities rather than lean throughout.

4 / 5

Actionability

Guidance is fully executable throughout: complete bash blocks for unpack/edit/pack/validate, exact script invocations with flags, literal hex palette values, precise pptxgenjs option names, and a copy-paste icon-rendering pipeline, covering the common create/edit/read cases.

5 / 5

Workflow Clarity

Multi-step processes are clearly sequenced with explicit validation checkpoints and feedback loops: structural work is ordered before content edits, 'After writeFile(), run python scripts/office/validate.py' mandates validation, failures instruct fixing in the generator and rebuilding, and the QA section requires re-rendering after fixes — matching the top anchor including for the destructive/batch XML editing flow.

5 / 5

Progressive Disclosure

The bundle structure is good: all five scripts in scripts/ (thumbnail.py, add_slide.py, clean.py, office/validate.py, office/soffice.py) are real files documented in a Scripts table with invocations and caveats, and sections use clear cross-links. However, everything lives inline in one ~230-line SKILL.md — the ~80-line Design Ideas section and detailed QA checklist could be split into one-level-deep reference files, which keeps it below the clear-overview-with-references anchor.

4 / 5

Total

18

/

20

Passed

Description

100%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.

This is an exemplary skill description: it states concrete capabilities comprehensively, provides explicit trigger guidance with natural user vocabulary and file extensions, and is tightly scoped to a distinct file format. No weaknesses were identified against any dimension anchor.

DimensionReasoningScore

Specificity

The description lists multiple concrete actions — 'creating slide decks, pitch decks, or presentations; reading, parsing, or extracting text...; editing, modifying, or updating existing presentations; combining or splitting slide files; working with templates (.potx), layouts, speaker notes, or comments' — with comprehensive coverage across input, output, and editing use cases, matching the top anchor.

5 / 5

Completeness

Both questions are answered explicitly: the 'what' is the enumerated action list, and the 'when' is stated twice with concrete trigger phrases ('Trigger whenever the user mentions "deck," "slides," "presentation," or references a .pptx or .potx filename' and 'If a .pptx or .potx file needs to be opened, created, or touched, use this skill'), matching the explicit what-and-when-with-triggers anchor.

5 / 5

Trigger Term Quality

It covers natural synonyms ('deck,' 'slides,' 'presentation,' 'pitch decks,' 'templates,' 'speaker notes') plus file extensions ('.pptx,' '.potx') and explicit filename references, matching the comprehensive-synonyms-and-extensions anchor; at most one minor term (e.g. 'PowerPoint') is unlisted, which is short of the 'a few natural terms missing' threshold of the 4 anchor.

5 / 5

Distinctiveness Conflict Risk

The niche is file-format-bound (.pptx/.potx presentations) with distinct, format-specific triggers, so it is clearly distinguishable from other document or data skills with minimal conflict risk, matching the clear-niche anchor.

5 / 5

Total

20

/

20

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.

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

referenced_paths_exist

Referenced path issues: 9 deeper-than-1-level

Warning

Total

15

/

16

Passed

Repository

K-Dense-AI/claude-scientific-writer

Path

scientific_writer/.claude/skills/pptx/SKILL.md

Reviewed

Table of Contents

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