performance-engineer

Expert performance engineer specializing in modern observability,

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npx tessl i github:sickn33/antigravity-awesome-skills --skill performance-engineer

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Review — 6%

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Validation — 10 / 11 Passed

Validation for skill structure

SKILL.md

Review

Evals

Evaluation results

89%

-1%

Checkout API Performance Analysis

Bottleneck diagnosis and prioritized optimization planning

Criteria

Without context

With context

Baseline from data

100%

Bottleneck priority order

100%

Impact per optimization

69%

92%

Tradeoffs per optimization

58%

33%

User-perceived metrics

100%

System-wide scope

100%

Data-driven decisions

100%

Maintainability or cost balance

92%

84%

Without context: $0.2774 · 2m 38s · 8 turns · 65 in / 5,544 out tokens

With context: $0.3488 · 2m 48s · 13 turns · 196 in / 6,151 out tokens

100%

10%

Pre-Launch Load Testing Plan for Payment Processing Service

Safe load testing strategy with production safeguards

Criteria

Without context

With context

Realistic test scenarios

100%

Production load test safety

100%

Staged rollout with rollback

100%

Post-test regression guardrails

58%

100%

Metrics tracked during testing

100%

Bottleneck isolation method

83%

100%

Continuous monitoring plan

100%

Traces or profiling during test

72%

100%

Without context: $0.3091 · 2m 34s · 12 turns · 89 in / 5,520 out tokens

With context: $0.4092 · 6m 6s · 13 turns · 90 in / 6,749 out tokens

100%

Observability and Performance Framework for SaaS Platform

Observability architecture with performance budgets and caching strategy

Criteria

Without context

With context

Performance budgets with thresholds

100%

Caching with invalidation

100%

Alerting with thresholds or anomalies

100%

Regression prevention mechanism

100%

Continuous monitoring

100%

Multi-layer caching

100%

Metrics documentation with impact

100%

Scalability or architectural improvements

100%

Without context: $0.3691 · 6m 23s · 10 turns · 122 in / 8,222 out tokens

With context: $0.5006 · 6m 49s · 17 turns · 180 in / 9,059 out tokens

Evaluated: about 18 hours ago
Agent: Claude Code

Table of Contents

Checkout API Performance Analysis Pre-Launch Load Testing Plan for Payment Processing Service Observability and Performance Framework for SaaS Platform

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