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wp-block-development

Use when developing WordPress (Gutenberg) blocks: block.json metadata, register_block_type(_from_metadata), attributes/serialization, supports, dynamic rendering (render.php/render_callback), deprecations/migrations, viewScript vs viewScriptModule, and @wordpress/scripts/@wordpress/create-block build and test workflows.

72

Quality

88%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

77%

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 well-sequenced procedural skill with strong progressive disclosure and clear validation checkpoints. It is somewhat verbose in places and leans on reference files rather than inline executable examples for core patterns.

Suggestions

Tighten the apiVersion 'Why this matters' rationale to a single directive line, moving background into a reference file, to improve token efficiency.

Add at least one inline executable snippet (e.g. a minimal register_block_type_from_metadata call) in the registration/serialization steps rather than only pointing to reference files.

DimensionReasoningScore

Conciseness

Mostly efficient and well-structured, but the 'Why this matters' block on apiVersion and the compatibility note restate context Claude likely already knows about the iframed editor, and some procedure steps are explanatory rather than purely directive.

2 / 3

Actionability

Provides concrete script commands (`node skills/wp-block-development/scripts/list_blocks.mjs`) and specific API names (useBlockProps, get_block_wrapper_attributes), but key steps mostly say 'Read: references/X.md' rather than giving inline executable code for registration/serialization patterns.

2 / 3

Workflow Clarity

A clear 0–10 numbered procedure with an explicit Verification section listing pass/fail checkpoints (inserter insertion, no 'Invalid block' on reload, frontend output matches), plus a Failure modes/escalation feedback loop.

3 / 3

Progressive Disclosure

SKILL.md is an overview that signals one-level-deep references (references/*.md) under each step; listed bundle files (block-json, registration, attributes-and-serialization, etc.) match the cited paths, and a real script exists in scripts/.

3 / 3

Total

10

/

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.

The description is specific, trigger-led, and clearly scoped to WordPress block development with concrete API/tooling terms. It answers both 'what' and 'when' and is highly distinct from other skills.

DimensionReasoningScore

Specificity

Lists many concrete actions: 'block.json metadata', 'register_block_type(_from_metadata)', 'attributes/serialization', 'supports', 'dynamic rendering (render.php/render_callback)', 'deprecations/migrations', 'viewScript vs viewScriptModule', and build/test workflows via '@wordpress/scripts/@wordpress/create-block'.

3 / 3

Completeness

Begins with 'Use when developing WordPress (Gutenberg) blocks' giving an explicit trigger, then enumerates the concrete capabilities, answering both what it does and when to use it.

3 / 3

Trigger Term Quality

Covers natural terms a user would say ('WordPress blocks', 'Gutenberg', 'block.json', 'attributes', 'render.php', 'viewScriptModule', 'create-block') with strong variation, though it leans somewhat technical rather than colloquial.

3 / 3

Distinctiveness Conflict Risk

The niche is sharply scoped to WordPress Gutenberg block development with version-specific terms (apiVersion, viewScriptModule), making it unlikely to trigger for unrelated skills.

3 / 3

Total

12

/

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

referenced_paths_exist

Referenced path issues: 1 missing, 1 deeper-than-1-level

Warning

Total

15

/

16

Passed

Repository
WordPress/agent-skills
Reviewed

Table of Contents

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