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nano-pdf

Edit PDFs with natural-language instructions using the nano-pdf CLI.

63

Quality

76%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./skills/nano-pdf/SKILL.md

The canonical home for this skill is nano-pdf in Hung-Reo/hungreo-openclaw

SKILL.md
Quality
Evals
Security

Quality

Content

100%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 body is a model of brevity and actionability for a simple CLI skill: one executable command, a concrete example, and concise operational notes that double as validation and a retry feedback loop.

DimensionReasoningScore

Conciseness

The body is lean and assumes Claude's competence: one intro sentence, a single executable command, and two tight operational notes with no padding or explanation of concepts Claude already knows, matching the 'every token earns its place' anchor.

5 / 5

Actionability

The Quick start provides a fully executable, copy-paste-ready command with a concrete realistic example covering the common case ("nano-pdf edit deck.pdf 1 \"...\""), matching the 'fully executable; copy-paste ready' anchor.

5 / 5

Workflow Clarity

This is a simple single-action skill whose action is unambiguous, and it includes both an explicit validation reminder ("Always sanity-check the output PDF before sending it out") and a feedback loop ("if the result looks off by one, retry with the other"), so validation is present and the simple-skill exception grants a 5.

5 / 5

Progressive Disclosure

The skill is well under 50 lines, single-purpose with no need for external references (no references/scripts/assets bundle exists), and is cleanly organized into a title, intro, Quick start, and Notes — meeting the simple-skill exception for a 5 with just well-organized sections.

5 / 5

Total

20

/

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 is concise and names a concrete action plus a specific tool, but it lacks any 'Use when...' trigger guidance and only covers a single action, which caps completeness and limits trigger-term coverage.

Suggestions

Add an explicit 'Use when...' trigger clause (e.g., 'Use when the user wants to edit or modify PDF content via natural language') to lift completeness above the 3 cap.

Broaden concrete actions beyond 'Edit' (e.g., 'Edit, annotate, or rearrange PDF pages') to improve specificity and coverage.

Include natural synonyms and the file extension users actually say ("PDF files, PDFs, .pdf") to improve trigger-term quality.

DimensionReasoningScore

Specificity

Names the PDF domain and one concrete action ("Edit PDFs") plus the natural-language mechanism via the nano-pdf CLI, but offers only a single action rather than a comprehensive set; fits the 1-2-concrete-actions anchor and is below the 'several specific actions' of 4.

3 / 5

Completeness

There is a clear "what" ("Edit PDFs with natural-language instructions using the nano-pdf CLI") but no "when"/"Use when..." clause at all, so the missing-trigger-guidance cap of 3 applies exactly.

3 / 5

Trigger Term Quality

"PDFs" is a natural keyword and "natural-language instructions" is mildly natural, but common variations/synonyms a user would say ("PDF files", ".pdf", "edit document") are missing, matching the 'some relevant keywords but missing common variations' anchor.

3 / 5

Distinctiveness Conflict Risk

The named CLI (nano-pdf) and natural-language editing approach carve a fairly distinct niche with only minor overlap risk against other PDF skills, but the absence of an explicit trigger clause keeps it just below the 5 anchor.

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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