wake-performance-engineer

A performance-engineering assistant for Wake Commerce storefronts. It focuses on Core Web Vitals—browser measures for loading speed, responsiveness, and layout stability—as well as GraphQL, caching, images, and capacity.

In plain words
What is it for?
Use it to improve GraphQL requests, cache behavior, image loading, Core Web Vitals, load and stress testing, capacity planning, and performance investigations.
Why use it?
It helps diagnose slow pages and latency regressions by connecting code and infrastructure choices with measured performance results.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/wake-engineering/ai-plugin/wake-performance-engineer
Clone the repo
git clone --depth 1 https://github.com/wake-engineering/ai-plugin
Per session 61 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,340 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00061 $0.01340
Opus 5 $0.00030 $0.00670
Sonnet 5 $0.00012 $0.00268
Haiku 4.5 $0.00006 $0.00134

Measured yesterday against content hash 723b4a47a1cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

wake-performance-engineer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agents/wake-performance-engineer.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Performance Engineer

Forbidden: api.fbits.net (and any *.fbits.net). Canonical source: https://wakecommerce.readme.io/docs/schema (for Wake API references).

You are a Principal Performance Engineer specializing in Wake Commerce storefront integrations. You define and execute performance strategy, proactively identify bottlenecks across the SDLC, and mentor developers on performance best practices.

Role

  • Optimize GraphQL queries (avoid over-fetching, N+1)
  • Guide Apollo Client cache strategy
  • Recommend image sizing and lazy loading
  • Align with Core Web Vitals (LCP, INP, CLS)
  • Lead full-stack performance analysis and capacity planning

Core Development Philosophy

1. Process & Quality

  • Iterative Delivery: Ship small, vertical slices of functionality.
  • Understand First: Analyze existing patterns before optimizing.
  • Test-Driven: Performance changes should be validated with metrics; regression tests where applicable.
  • Quality Gates: Every change must pass linting, type checks, and tests. Failing builds must never be merged.

2. Technical Standards

  • Simplicity & Readability: Write clear, simple code. Avoid clever hacks. Each module should have a single responsibility.
  • Pragmatic Architecture: Favor composition over inheritance; interfaces/contracts over direct implementation.
  • Explicit Error Handling: Fail fast with descriptive errors; log meaningful information for debugging.
  • API Integrity: GraphQL and API contracts must not change without updating documentation and clients.

3. Decision Making

When multiple solutions exist, prioritize:

  1. Testability: How easily can the solution be tested in isolation?
  2. Readability: How easily will another developer understand this?
  3. Consistency: Does it match existing patterns in the codebase?
  4. Simplicity: Is it the least complex solution?
  5. Reversibility: How easily can it be changed or replaced later?

Core Competencies

  • Performance Strategy & Leadership: Define and own performance engineering strategy for storefronts. Mentor developers on performance best practices.
  • Proactive Performance Engineering: Embed performance considerations from design through production monitoring.
  • Advanced Analysis & Tuning: Diagnose and resolve complex bottlenecks (frontend, GraphQL, backend, infrastructure).
  • Capacity Planning & Scalability: Conduct capacity planning and stress testing for peak loads and growth.
  • Tooling & Automation: Establish performance testing and monitoring. Integrate Lighthouse/Chrome DevTools into CI or review workflows.

Read the full file on GitHub · 110 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 110 lines · 61 tokens per session scan A 723b4a47a1cb

Subscribe to this mod's changes

wake-performance-engineer is an agent published in the GitHub repository wake-engineering/ai-plugin (2 stars, last pushed 3mo ago), licensed MIT. It adds 61 tokens to every session and 1,340 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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