caro rust.instructions.md

caro rust.instructions.md is an instructions file for GitHub Copilot from wildcard/caro. It costs 2,226 tokens per session, scanned A, original, AGPL-3.0.

A set of instructions for reviewing Rust code, including error handling, required patterns, anti-patterns, and asynchronous code using async and await.

In plain words
What is it for?
Use it when reviewing Rust changes, especially error handling and asynchronous code.
Why use it?
It gives reviews consistent rules for spotting risky or inconsistent Rust code.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot chat mode or prompt.

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 instructions/wildcard/caro/rust
Clone the repo
git clone --depth 1 https://github.com/wildcard/caro

Made for: GitHub Copilot.

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 caro rust.instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/wildcard/caro/rust.svg)](https://agentmods.dev/instructions/wildcard/caro/rust)
Your own site
<a href="https://agentmods.dev/instructions/wildcard/caro/rust"><img src="https://agentmods.dev/badge/instructions/wildcard/caro/rust.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,226 This file is loaded in full into every session.
When invoked 2,226 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.02226 $0.02226
Opus 5 $0.01113 $0.01113
Sonnet 5 $0.00445 $0.00445
Haiku 4.5 $0.00223 $0.00223

Measured 2d ago against content hash 133f569d090e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

caro rust.instructions.md 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 2d 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.

.github/instructions/rust.instructions.md · 361 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 2d ago First seen · 361 lines · 2,226 tokens per session scan A 133f569d090e

Subscribe to this mod's changes

caro rust.instructions.md is an instructions file published in the GitHub repository wildcard/caro (37 stars, last pushed yesterday), licensed AGPL-3.0. It adds 2,226 tokens to every session, about $0.0111 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 2026-09-03.