simple: Agent for Claude Code

.claude/agents/perf.md

perf is an agent for Claude Code from ormastes/simple. It costs 0 tokens per session (1,419 once invoked), scanned A, original, no licence file.

A performance-diagnosis guide for investigating slow code, build, lint, and test runs, as well as expensive hot paths. A hot path is code that runs often or takes a large share of the total time.

In plain words
What is it for?
Use it when something becomes slower, a time budget is exceeded, or a frequently used code path needs a cost model.
Why use it?
It helps separate speed and cost problems from memory or correctness problems and points investigations toward measurable performance limits.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

This is ormastes/simple's own configuration. It tells Claude Code how to work on simple itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything simple configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ormastes/simple. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ormastes/simple/main/.claude/agents/perf.md
Clone the repo
git clone --depth 1 https://github.com/ormastes/simple

Made for: Claude Code.

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 perf

README.md
[![agentmods](https://agentmods.dev/badge/agents/ormastes/simple/perf.svg)](https://agentmods.dev/agents/ormastes/simple/perf)
Your own site
<a href="https://agentmods.dev/agents/ormastes/simple/perf"><img src="https://agentmods.dev/badge/agents/ormastes/simple/perf.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 1,419 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 5.1 $0.00000 $0.01419
Opus 5 $0.00000 $0.00709
Sonnet 5 $0.00000 $0.00284
Haiku 4.5 $0.00000 $0.00142

Measured today against content hash 3945f47f318a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

perf 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 today.

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.

.claude/agents/perf.md · 113 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. today First seen · 113 lines · 0 tokens per session scan A 3945f47f318a

Subscribe to this mod's changes

perf is an agent published in the GitHub repository ormastes/simple (1 stars, last pushed today), with no licence file. It costs nothing until one of its globs matches a file; then it loads 1,419 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 2026-09-06.

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