angular-signals

DEPRECATED - this skill is unmaintained. Use the official Angular skills at https://github.com/angular/skills instead. Implement signal-based reactive state management in Angular v20+. Use for creating reactive state with signal(), derived state with computed(), dependent state with linkedSignal(), and side effects with effect(). Triggers on state management questions, converting from BehaviorSubject/Observable patterns to signals, or implementing reactive data flows.

Quality

89%

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Securityby

Passed

No findings from the security scan

Quality

Content

86%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 an intentionally minimal deprecation redirect, and it executes that role well — lean, well-structured, with concrete install/remove commands. Scores are held back only because the body provides no guidance on the skill's nominal topic and the remove step lacks a validation checkpoint.

Suggestions

Add an explicit checkpoint before the remove command, e.g., 'Verify the official skills are installed before running remove, so you are not left without coverage.'

If any residual signal guidance is worth preserving for offline use, link to it as a one-level-deep reference rather than relying solely on git history.

Dimension	Reasoning	Score
Conciseness	The body is a lean deprecation redirect under 50 lines with no padding and no explanation of concepts Claude already knows; every token earns its place.	5 / 5
Actionability	Provides two concrete, copy-paste-ready shell commands ('npx skills add https://github.com/angular/skills' and 'npx skills remove analogjs/angular-skills'), but the body delivers no actionable guidance on its nominal topic (signals), which is an intentional but real coverage gap.	4 / 5
Workflow Clarity	The redirect action is clear and unambiguous, but the add-then-remove sequence lacks an explicit checkpoint (e.g., confirm the official skills installed before removing this one), leaving a minor validation gap.	4 / 5
Progressive Disclosure	No bundle files are needed; the content is under 50 lines and well-organized into a deprecation notice, install/remove commands, and a git-history note, with a clear pointer to the external replacement.	5 / 5
	Total	18 / 20 Passed

Description

92%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.

Despite a DEPRECATED prefix, the description is specific, complete, and distinctive — it names four concrete Angular signal primitives and provides explicit 'Triggers on' guidance. The only weak spot is trigger-term synonym coverage, which is good but not exhaustive.

Dimension	Reasoning	Score
Specificity	Lists four concrete, named actions — 'creating reactive state with signal()', 'derived state with computed()', 'dependent state with linkedSignal()', 'side effects with effect()' — covering the core signal primitives comprehensively, matching the anchor for multiple specific concrete actions.	5 / 5
Completeness	Explicitly answers both 'what' (implement signal-based reactive state management in Angular v20+ with named primitives) and 'when' ('Triggers on state management questions, converting from BehaviorSubject/Observable patterns to signals, or implementing reactive data flows') with concrete trigger phrases.	5 / 5
Trigger Term Quality	Includes natural triggers a user would say — 'state management questions', 'converting from BehaviorSubject/Observable patterns to signals', 'reactive data flows' — with an explicit 'Triggers on' clause, but lacks some synonyms such as 'RxJS', 'zoneless', or 'change detection'.	4 / 5
Distinctiveness Conflict Risk	Occupies a clear niche (Angular v20+ signal-based reactive state) with distinct, API-specific triggers, giving minimal overlap risk with other skills.	5 / 5
	Total	19 / 20 Passed

Validation

100%

Warnings & errors only

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

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository: analogjs/angular-skills
Path: skills/angular-signals/SKILL.md
Commit: 18996fd

Reviewed: 5 days ago

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