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regex-expert

Regular expression expert for crafting, debugging, and explaining patterns

65

Quality

77%

Does it follow best practices?

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SecuritybySnyk

Passed

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tessl review fix ./crates/openfang-skills/bundled/regex-expert/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

87%

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

The content is lean, assumes Claude's competence, and delivers concrete copy-paste-ready regex patterns in a well-organized single-file structure. The main gap is workflow clarity: guidance is topic-based with only implicit validation checkpoints rather than an explicit sequenced workflow with a feedback loop.

Suggestions

Add a short numbered crafting/debugging workflow with an explicit 'test against matching and non-matching inputs, then refine' checkpoint to provide a clear feedback loop.

Promote the scattered testing guidance into a single explicit verification step within that workflow.

DimensionReasoningScore

Conciseness

Dense actionable bullets assume Claude already understands regex; only minimal brief framing ('Regex is write-only if not documented') rather than concept explainers, matching the lean-and-efficient anchor.

3 / 3

Actionability

Provides copy-paste-ready concrete patterns (e.g. '\b(?:\d{1,3}\.){3}\d{1,3}\b', '(?>...)', '(?:com|org|net)') and specific directives; as an instruction-only skill, the actionable guidance meets the executable/specific-examples anchor.

3 / 3

Workflow Clarity

Content is organized by topic rather than as a sequenced workflow, and testing is mentioned as a principle/checklist but without an explicit validate-fix-retry feedback loop, so checkpoints are present only implicitly.

2 / 3

Progressive Disclosure

The body is under 50 lines, needs no external references, and is well-organized into clearly labeled sections, which per the rubric merits a 3 for simple skills.

3 / 3

Total

11

/

12

Passed

Description

67%

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 specific and occupies a clear, distinctive niche, but it lacks an explicit 'Use when...' trigger clause and misses the common 'regex' keyword variation. These gaps cap completeness and trigger-term quality at 2.

Suggestions

Add an explicit 'Use when...' clause, e.g. 'Use when crafting, debugging, or explaining regular expressions or regex patterns'.

Include the common term 'regex' alongside 'Regular expression' to capture the keyword users most naturally say.

Optionally note the supported flavors (PCRE, JavaScript, Python, etc.) to further sharpen distinctiveness and trigger relevance.

DimensionReasoningScore

Specificity

Lists three concrete actions ('crafting, debugging, and explaining patterns'), matching the 'multiple specific concrete actions' anchor rather than the domain-plus-some-actions level 2.

3 / 3

Completeness

Clearly states what the skill does but provides no 'Use when...' trigger guidance, which per the rubric caps completeness at 2.

2 / 3

Trigger Term Quality

Includes 'Regular expression' and 'patterns' but omits the very common user term 'regex', so relevant keywords are present but common variations are missing.

2 / 3

Distinctiveness Conflict Risk

'Regular expression expert' defines a clear, narrow niche with distinct triggers that is unlikely to conflict with other skills.

3 / 3

Total

10

/

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.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
RightNow-AI/openfang
Reviewed

Table of Contents

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