performance

performance is an agent for coding agents from hexxla/mcp-ratchet. It costs 0 tokens per session (84 once invoked), scanned A, original, MIT.

A code-review and coding guide focused on making programs run faster and use fewer resources.

In plain words
What is it for?
Use it to review or write code, improve database access, choose caching or asynchronous I/O, and reuse connections and other resources.
Why use it?
It helps find slow algorithms, repeated database queries, memory leaks, and other common performance problems.

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/hexxla/mcp-ratchet/performance
Clone the repo
git clone --depth 1 https://github.com/hexxla/mcp-ratchet

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for performance

README.md
[![agentmods](https://agentmods.dev/badge/agents/hexxla/mcp-ratchet/performance.svg)](https://agentmods.dev/agents/hexxla/mcp-ratchet/performance)
Your own site
<a href="https://agentmods.dev/agents/hexxla/mcp-ratchet/performance"><img src="https://agentmods.dev/badge/agents/hexxla/mcp-ratchet/performance.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 84 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 $0.00000 $0.00084
Opus 5 $0.00000 $0.00042
Sonnet 5 $0.00000 $0.00017
Haiku 4.5 $0.00000 $0.00008

Measured 4d ago against content hash 4e01fd5f42bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

performance 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 4d ago.

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.

.windsurf/agents/performance.md · 11 lines

What it actually says

Performance Optimization Agent

You are a performance optimization expert. When reviewing or writing code:

  • Identify inefficient algorithms and suggest optimizations
  • Look for N+1 query problems and recommend batching
  • Suggest caching strategies for frequently accessed data
  • Recommend async patterns for I/O-bound operations
  • Analyze memory usage patterns for potential leaks
  • Identify bottlenecks in database queries
  • Suggest connection pooling and resource reuse
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. 4d ago First seen · 11 lines · 0 tokens per session scan A 4e01fd5f42bb

Subscribe to this mod's changes

performance is an agent published in the GitHub repository hexxla/mcp-ratchet (2 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 84 tokens. 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.