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compression

Use when auditing slow page loads, heavy assets, or rendering delays related to Enable text-based compression. Verify the actual bottleneck in DevTools, Lighthouse, or field data before recommending changes.

63

Quality

75%

Does it follow best practices?

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Adds up to 20 points to the overall score

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SecuritybySnyk

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./skills/compression/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

57%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The body is well-structured and delegates detail cleanly to a real reference file, but its own guidance is incomplete: the Fix lacks executable config, the workflow lacks an in-body validation loop, and some passages restate concepts Claude already knows.

Suggestions

Add at least one minimal executable config snippet (e.g. a 3-line nginx gzip block) to the Fix section so the body is actionable without opening the reference.

Close the workflow loop in the body with an explicit re-verification step (e.g. "After enabling, re-check the `Content-Encoding` response header and confirm the Lighthouse/transfer metric improves").

Trim the intro sentence and the generic Quick Reference bullets that restate what compression does; keep only the nuance (network vs. parse/execution cost) that Claude would not assume.

DimensionReasoningScore

Conciseness

The body is mostly lean, but the intro sentence and several Quick Reference bullets ("Compressed assets download faster, reducing the time to first paint", "Brotli provides superior compression") restate concepts Claude already knows.

2 / 3

Actionability

The Check is concrete (look for `Content-Encoding: gzip` or `br` headers), but the Fix only names servers/CDN without executable config in the body; the actual copy-paste nginx/Express code lives in the reference rather than the body.

2 / 3

Workflow Clarity

A Check→Fix sequence is present and well-organized, but there is no explicit validation feedback loop (re-verify after fixing) in the body itself — that verification is deferred to the reference.

2 / 3

Progressive Disclosure

The body is a concise overview with clear sections and an explicitly signaled one-level-deep reference ("see `references/rule.md`") that exists and is appropriately split, enabling easy navigation.

3 / 3

Total

9

/

12

Passed

Description

92%

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, with explicit triggers, concrete actions, and named measurement tools. Its main weakness is that the leading trigger terms overlap with other performance skills, raising conflict risk.

DimensionReasoningScore

Specificity

It lists multiple concrete actions ("auditing slow page loads, heavy assets, or rendering delays", "Verify the actual bottleneck in DevTools, Lighthouse, or field data", "recommending changes") with named tools, matching the anchor for listing several specific concrete actions.

3 / 3

Completeness

It has an explicit "Use when..." trigger clause (the when) and states the action of verifying the bottleneck before recommending changes (the what), satisfying both halves with explicit triggers.

3 / 3

Trigger Term Quality

Natural user-facing terms like "slow page loads", "heavy assets", and "rendering delays" are exactly what a user would say, with good coverage of the performance-complaint vocabulary.

3 / 3

Distinctiveness Conflict Risk

The leading triggers (slow page loads, heavy assets, rendering delays) are generic across performance-rule skills and would overlap with sibling rules, though "text-based compression" narrows the niche somewhat.

2 / 3

Total

11

/

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

metadata_version

'metadata.version' is missing

Warning

Total

15

/

16

Passed

Repository
thedaviddias/Front-End-Checklist
Reviewed

Table of Contents

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