CtrlK
BlogDocsLog inGet started
Tessl Logo

cloudflare-workers-performance

Cloudflare Workers performance optimization with CPU, memory, caching, bundle size. Use for slow workers, high latency, cold starts, or encountering CPU limits, memory issues, timeout errors.

65

Quality

78%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

SecuritybySnyk

Low

Low-risk findings worth noting

Fix and improve this skill with Tessl

tessl review fix ./plugins/cloudflare-workers/skills/cloudflare-workers-performance/SKILL.md
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 body is a well-structured, mostly executable performance reference with good progressive disclosure via real reference files. Its main weakness is the lack of an explicit optimization workflow with validation checkpoints, and a Templates section pointing at non-existent files.

Suggestions

Add a short sequenced workflow (profile -> identify bottleneck -> apply pattern -> re-measure with benchmark.sh) with a validation/re-measurement checkpoint to lift workflow clarity.

Create the referenced templates/ directory with performance-middleware.ts, caching-layer.ts, and optimized-worker.ts, or remove the Templates table if those files are not bundled.

Tighten inline code commentary (the ❌/✅ lines) in Quick Wins to reduce tokens where the contrast is already obvious.

DimensionReasoningScore

Conciseness

The body is mostly efficient — code examples, a compact error table, and brief rules with minimal concept explanation — with only minor instances of over-explanation (inline ❌/✅ commentary) that could be trimmed.

4 / 5

Actionability

Provides concrete, largely copy-paste-ready TypeScript examples and specific script commands, with minor gaps where examples are illustrative interfaces or partial snippets rather than fully runnable blocks.

4 / 5

Workflow Clarity

The skill is a pattern catalog rather than a sequenced process; the 'When to Load References' section gives loose decision guidance but there is no explicit sequence or validation checkpoints for applying optimizations.

3 / 5

Progressive Disclosure

Good overview structure with one-level-deep, clearly signaled references to real files (cpu-optimization.md, caching-strategies.md, etc.); the Templates section references a templates/ directory that does not exist, a minor organization gap.

4 / 5

Total

15

/

20

Passed

Description

87%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: it clearly states a specific niche, concrete capability areas, and an explicit 'Use for' trigger clause with natural user phrases. It is concise, third-person, and well-differentiated.

DimensionReasoningScore

Specificity

Names the domain and several concrete optimization areas ("CPU, memory, caching, bundle size"), listing several specific capabilities with only minor gaps, matching the anchor for several specific actions rather than fully comprehensive discrete actions.

4 / 5

Completeness

Explicitly answers both what ("Cloudflare Workers performance optimization with CPU, memory, caching, bundle size") and when ("Use for slow workers, high latency, cold starts, or encountering CPU limits, memory issues, timeout errors") with concrete trigger phrases.

5 / 5

Trigger Term Quality

Includes natural user phrases like "slow workers", "high latency", "cold starts", "CPU limits", "memory issues", "timeout errors" — good keyword coverage, though a few common synonyms are missing, so it does not reach the comprehensive anchor.

4 / 5

Distinctiveness Conflict Risk

Targets a clear niche (Cloudflare Workers performance) with distinct, domain-specific triggers, giving minimal conflict risk with other skills.

5 / 5

Total

18

/

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
secondsky/claude-skills
Reviewed

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.