CtrlK
BlogDocsLog inGet started
Tessl Logo

pdf

Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When Claude needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale.

84

1.17x
Quality

75%

Does it follow best practices?

Impact

100%

1.17x

Average score across 3 eval scenarios

SecuritybySnyk

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./skills/data/06-office-pdf/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

50%

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

The skill provides highly actionable, executable code examples covering a comprehensive range of PDF operations, which is its main strength. However, it is significantly too verbose for a skill file—most of these are standard library usage patterns that Claude already knows, and the extensive inline examples bloat the token budget without adding proportional value. The workflow lacks validation checkpoints for destructive operations, and the content organization would benefit from moving detailed examples to reference files.

Suggestions

Drastically reduce inline code examples to only non-obvious patterns (e.g., OCR pipeline, advanced table extraction with pandas); move standard pypdf/pdfplumber/reportlab usage to reference.md since Claude already knows these libraries.

Add explicit validation steps to merge/split workflows (e.g., verify page counts after merge, check output file size, open and validate the result).

Move the detailed library-by-library code examples and command-line tool references into reference.md, keeping SKILL.md as a concise overview with the quick reference table and pointers to detailed files.

Remove the Chinese text section or integrate it consistently; the mixed-language instruction about mcp-feedback-enhanced feels out of place and should be a clear constraint at the top if it's important.

DimensionReasoningScore

Conciseness

The skill is very verbose, containing extensive code examples for basic operations Claude already knows how to do (reading PDFs, merging, splitting, creating with reportlab). The quick reference table largely duplicates information already shown in detail above. Much of this is standard library usage that doesn't need to be spelled out line by line.

1 / 3

Actionability

All code examples are fully executable, copy-paste ready, and cover a wide range of tasks with specific imports, complete code blocks, and concrete command-line examples. The guidance is specific rather than abstract.

3 / 3

Workflow Clarity

Individual operations are clear, but there are no validation checkpoints for destructive operations like merge/split. The interactive processing section mentions confirming operations but doesn't integrate validation steps into the actual workflows. Missing feedback loops for batch operations caps this at 2.

2 / 3

Progressive Disclosure

References to forms.md and reference.md are present and clearly signaled, which is good. However, the main file is monolithic with ~200 lines of inline code examples that could be split into separate reference files, keeping SKILL.md as a leaner overview. The content that is inline would be better served in referenced files.

2 / 3

Total

8

/

12

Passed

Description

100%

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 a strong skill description that clearly enumerates specific PDF manipulation capabilities and provides an explicit 'when' clause for triggering. It uses third-person voice appropriately and includes natural trigger terms users would use. The description is concise yet comprehensive, covering both the breadth of capabilities and the conditions under which the skill should be selected.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: 'extracting text and tables', 'creating new PDFs', 'merging/splitting documents', and 'handling forms'. These are clear, actionable capabilities.

3 / 3

Completeness

Clearly answers both 'what' (extracting text/tables, creating PDFs, merging/splitting, handling forms) and 'when' ('When Claude needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale'). The 'when' clause is explicit.

3 / 3

Trigger Term Quality

Includes strong natural keywords users would say: 'PDF', 'text', 'tables', 'merging', 'splitting', 'forms', 'PDF form', 'generate', 'analyze PDF documents'. Good coverage of common variations and use cases.

3 / 3

Distinctiveness Conflict Risk

Clearly scoped to PDF manipulation with distinct triggers like 'PDF form', 'merging/splitting documents', 'PDF documents'. Unlikely to conflict with other skills due to the specific PDF focus and enumerated capabilities.

3 / 3

Total

12

/

12

Passed

Validation

100%

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

Validation11 / 11 Passed

Validation for skill structure

No warnings or errors.

Repository
majiayu000/claude-skill-registry
Reviewed

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.