comment-usage

comment-usage is a cursor rule for Cursor from toptalentcoder/Cursor-AwesomeRules. It costs 102 tokens per session, scanned A, a copy of comment-usage, CC0-1.0.

A commenting rule that reserves comments for the reasons behind code, unusual behaviour, and possible pitfalls.

In plain words
What is it for?
Use it when writing or reviewing comments in a shared codebase.
Why use it?
It reduces clutter and comments that merely repeat what the code already shows.

Cursor rule for Cursor

Written for Cursor: a Cursor rule (.mdc).

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 rules/toptalentcoder/cursor-awesomerules/comment-usage
Clone the repo
git clone --depth 1 https://github.com/toptalentcoder/Cursor-AwesomeRules

Made for: Cursor.

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 comment-usage

README.md
[![agentmods](https://agentmods.dev/badge/rules/toptalentcoder/cursor-awesomerules/comment-usage.svg)](https://agentmods.dev/rules/toptalentcoder/cursor-awesomerules/comment-usage)
Your own site
<a href="https://agentmods.dev/rules/toptalentcoder/cursor-awesomerules/comment-usage"><img src="https://agentmods.dev/badge/rules/toptalentcoder/cursor-awesomerules/comment-usage.svg" alt="Measured on agentmods" height="20"></a>
Per session 102 This file is loaded in full into every session.
When invoked 102 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00102 $0.00102
Opus 5 $0.00051 $0.00051
Sonnet 5 $0.00020 $0.00020
Haiku 4.5 $0.00010 $0.00010

Measured 2d ago against content hash 547a43d7092e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

comment-usage 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.

Origin

This is a copy

100% identical to comment-usage — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

rules/github-cursorrules-prompt-file-instructions/comment-usage.mdc · 8 lines

What it actually says

  • Use comments sparingly, and when you do, make them meaningful.
  • Don't comment on obvious things. Excessive or unclear comments can clutter the codebase and become outdated.
  • Use comments to convey the "why" behind specific actions or explain unusual behavior and potential pitfalls.
  • Provide meaningful information about the function's behavior and explain unusual behavior and potential pitfalls.
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 · 8 lines · 102 tokens per session scan A 547a43d7092e

Subscribe to this mod's changes

comment-usage is a cursor rule published in the GitHub repository toptalentcoder/Cursor-AwesomeRules (6 stars, last pushed 1y ago), licensed CC0-1.0. It adds 102 tokens to every session, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to comment-usage, differing in 0 lines, and is treated as a copy.