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serve-sim-placeholder-assets

Audit and update serve-sim's Device Hub-style simulator placeholder assets from local Xcode/CoreTypes resources. Use after installing a new Xcode or macOS seed, or when iPhone, iPad, Watch, or Vision placeholder previews look wrong.

76

Quality

93%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

87%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-structured, lean overview that delegates detail to verified reference and script bundles, with a concrete executable command. Its main weakness is that the final code-update/validation detail lives only in the reference, leaving the body's step 4 slightly directive rather than fully actionable.

Suggestions

Inline a one-line pointer to the verification command set (e.g., 'Run the bun test/typecheck/build verification from the reference checklist before finishing') so the body's workflow ends on an explicit validation checkpoint rather than deferring it entirely.

Make step 4 more concrete by naming the specific files that get updated for exact vs. fallback vs. missing mappings (e.g., devicekit-chrome.ts / FALLBACK_PLACEHOLDER_ASSETS), even briefly, so the body is self-sufficient for the most common case.

Add a short note that the audit output directory's audit.json/PNGs should be inspected before deciding the mapping action, mirroring the reference's inspect-before-change guidance.

DimensionReasoningScore

Conciseness

The body is lean: a one-line scoping sentence and four numbered steps, each tight and free of concepts Claude already knows. Every token earns its place and it assumes Claude's competence.

5 / 5

Actionability

Provides a concrete, executable command (the node audit script with exact path and --out flag) and an explicit step to read a specific reference file. Minor gap: step 4 ('Update app code/tests only after reviewing the audit output for exact, fallback, or missing mappings') is directive but does not name the exact files to change here, deferring detail to the reference.

4 / 5

Workflow Clarity

Steps are clearly numbered and sequenced, with the audit step naming exact output classifications to review before touching code (a checkpoint before edits). Minor gap: validation is implied by deferring to the reference's checklist rather than inline, and there is no explicit verify-then-act feedback loop in the body itself.

4 / 5

Progressive Disclosure

The body is a concise overview that delegates detail to a clearly signaled, one-level-deep reference (references/device-placeholder-assets.md) and a real script (verified present at scripts/audit-placeholder-assets.mjs). Content is appropriately split with easy navigation.

5 / 5

Total

18

/

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 specific, trigger-rich, and complete — it states both what the skill does and concrete conditions for when to use it, with a clear niche. It uses third person and avoids vague fluff.

DimensionReasoningScore

Specificity

Names the domain (Device Hub-style simulator placeholder assets) and multiple concrete actions (audit, update, sourcing from local Xcode/CoreTypes resources), with comprehensive coverage. It does not read like vague fluff or generic language.

5 / 5

Completeness

Explicitly answers 'what' (audit and update serve-sim's placeholder assets from local Xcode/CoreTypes resources) AND 'when' with concrete trigger phrases ('Use after installing a new Xcode or macOS seed, or when ... previews look wrong'). Both halves are present and explicit.

5 / 5

Trigger Term Quality

Includes natural terms a user would actually say ('iPhone, iPad, Watch, or Vision placeholder previews look wrong', 'after installing a new Xcode or macOS seed'), plus synonyms for the trigger context. Coverage is comprehensive.

5 / 5

Distinctiveness Conflict Risk

Targets a narrow niche (serve-sim Device Hub placeholder asset maintenance) with distinct triggers tied to specific seed installs and visual defects, making conflict with unrelated skills minimal.

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
EvanBacon/serve-sim
Reviewed

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