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webiny-admin-ui-extensions

Customizing the Webiny Admin UI -- white-labeling, custom data list columns, page-type forms, named dialogs, named drawers, and Lexical editor plugins. Use this skill when the developer wants to change branding (logo, title, theme colors), add custom columns to content entry list views, create custom forms for Website Builder page types, register named dialogs or drawers that can be opened from anywhere with params, or extend the Lexical rich text editor. Covers AdminConfig, ContentEntryListConfig, useDialog, useDrawer, useOpenDialog, useOpenDrawer.

69

Quality

84%

Does it follow best practices?

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SecuritybySnyk

Passed

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SKILL.md
Quality
Evals
Security

Quality

Content

68%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 well-organized, actionable reference with executable examples for most categories and clean navigation. Its main weaknesses are the lack of explicit workflow validation checkpoints and the underdeveloped Lexical plugins section, which lacks code.

Suggestions

Add at least one complete, executable Lexical editor plugin example (register, import paths, and a minimal node or toolbar plugin) so the Lexical section matches the actionability of the other categories.

For the build/deploy workflow, add an explicit validation step (e.g., how to verify an extension renders or that 'yarn webiny watch admin' compiles cleanly before deploy) to give the workflow a concrete checkpoint.

Consider moving the dialog and drawer API reference tables into a references/ file (e.g. DIALOGS_DRAWERS.md) and linking from SKILL.md to reduce inline length and improve progressive disclosure.

DimensionReasoningScore

Conciseness

The body is largely lean with compact props tables and minimal explanatory prose, assuming Claude's competence; a few minor restatements (e.g., 'All must be wrapped in AdminConfig.Public') and the thin Lexical stub keep it just below a 5.

4 / 5

Actionability

Copy-paste-ready .tsx examples cover theme, logo, data list columns, page forms, dialogs, and drawers with exact prop tables, plus the concrete .tsx-extension warning; the only gap is the Lexical plugins section, which has no executable code example.

4 / 5

Workflow Clarity

Categories are cleanly separated and each shows the register-then-use pattern, but there is no explicit multi-step sequence or validation checkpoint, and the Lexical section provides no sequence at all; as a reference-style skill this is acceptable, but the missing checkpoints and incomplete Lexical flow hold it to the mid anchor.

3 / 5

Progressive Disclosure

Clear section headers (TL;DR, White-Labeling, Named Dialogs, Quick Reference, Related Skills) give good navigation with no nested references; the ~400 lines are inlined without bundle files, and the dialog/drawer API tables arguably could be split out, so it sits just below a 5.

4 / 5

Total

15

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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.

The description is strong across all dimensions: it concretely names six capability areas, provides explicit 'Use when' trigger phrases, and carves out a distinctive Webiny Admin niche. It is a clear, well-targeted description with no vague fluff.

DimensionReasoningScore

Specificity

Names the Webiny Admin UI domain and six concrete capability categories (white-labeling, custom data list columns, page-type forms, named dialogs, named drawers, Lexical editor plugins) plus concrete API surfaces like AdminConfig and ContentEntryListConfig, matching the comprehensive-coverage anchor.

5 / 5

Completeness

Explicitly answers both 'what' (the six categories and covered APIs) and 'when' via a concrete 'Use this skill when the developer wants to...' trigger clause, matching the anchor that requires both with concrete trigger phrases.

5 / 5

Trigger Term Quality

Uses natural developer phrasing such as 'change branding (logo, title, theme colors)', 'add custom columns to content entry list views', and 'extend the Lexical rich text editor' that users would plausibly say, with broad coverage across all six capability areas.

5 / 5

Distinctiveness Conflict Risk

The Webiny Admin UI niche and its distinctive triggers (branding, named dialogs/drawers, Lexical plugins) are unlikely to overlap with other skills, giving minimal conflict risk.

5 / 5

Total

20

/

20

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
webiny/webiny-js
Reviewed

Table of Contents

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