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mobilebuildmcp-rendering-streaming-review

Use when reviewing MobileBuildMCP rendering, streaming fragment, next-step, and CLI output mode changes for boundary violations.

68

Quality

85%

Does it follow best practices?

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SKILL.md
Quality
Evals
Security

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.

An exceptionally lean, well-organized review skill: every guardrail and validation command is concrete and executable, and the structure is easy to navigate. The two gaps are the lack of an explicitly sequenced review workflow (ordering is only implied by section layout) and the absence of illustrative violation examples that would make the guardrails easier to apply.

Suggestions

Add a short ordered workflow (1. inspect listed files, 2. check each guardrail, 3. run validation commands, 4. report findings) to make the sequence explicit.

Include one brief good-vs-bad example for the highest-risk guardrail, e.g., a tool handler incorrectly branching on CLI vs MCP output mode.

State what to do when validation fails (fix and re-run vs. report to the user) to close the feedback loop.

DimensionReasoningScore

Conciseness

Every line is a review-scope rule, a concrete file path, a guardrail check, or an executable command; there is no padding and no explanation of concepts Claude already knows. Not lower: nothing can be trimmed. Not applicable higher: this is the top anchor.

5 / 5

Actionability

Concrete file globs ('src/rendering/**', 'src/runtime/tool-invoker.ts') and copy-paste validation commands ('npm run typecheck', 'npx skill-check .agents/skills/...') make the guidance mostly executable, and guardrails are checkable rules; the minor gap is the absence of any example showing what a violation looks like (e.g., a snippet of a handler branching on output mode).

4 / 5

Workflow Clarity

Sections imply a coherent sequence (scope -> inspect files -> check guardrails -> run validation) and the Validation section provides explicit checkpoints; however the ordering is never stated as steps and there is no error-recovery loop (what to do when a test fails), keeping it below the fully sequenced anchor and above the implicit-checkpoint anchor.

4 / 5

Progressive Disclosure

The body is under 50 lines, needs no external references (none exist and none are referenced), and is organized into clean, well-labeled sections — matching the simple-skill exception for progressive disclosure.

5 / 5

Total

18

/

20

Passed

Description

78%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.

A focused, third-person description with an explicit 'Use when' trigger and a well-enumerated, niche-specific scope. Its main limitation is that the 'what' is a single thin action verb — it never says what the review involves beyond checking for boundary violations.

Suggestions

State what the review actually does in one clause, e.g., 'inspect the files listed in the skill guardrails and run the validation suite', to strengthen the 'what' side of completeness.

Add one or two common variations such as 'output format' or 'emitFragment' to broaden natural trigger coverage.

DimensionReasoningScore

Specificity

The action 'reviewing ... changes for boundary violations' is concrete and the scope enumerates four specific areas ('rendering, streaming fragment, next-step, and CLI output mode'), which is noticeably more specific than a bare domain-plus-action description, though it stops short of comprehensive multi-action coverage.

4 / 5

Completeness

An explicit 'Use when reviewing ...' clause answers 'when' with concrete triggers, and 'what' is stated (review changes for boundary violations); the 'what' is thin — it omits what the review actually involves (guardrails, files, validation) — so it falls short of the fully explicit anchor.

4 / 5

Trigger Term Quality

'rendering', 'streaming', 'fragment', 'next-step', 'CLI output mode', and 'boundary violations' are the natural terms a contributor to this repo would say; a few plausible variations (e.g., 'output format', 'emit') are missing, keeping it just below comprehensive.

4 / 5

Distinctiveness Conflict Risk

It names a clear niche (MobileBuildMCP rendering/streaming boundary review) with distinct, unambiguous triggers that would not be confused with other skills.

5 / 5

Total

17

/

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.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository

getsentry/XcodeBuildMCP

Path

.agents/skills/mobilebuildmcp-rendering-streaming-review/SKILL.md

Reviewed

Table of Contents

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