no-emdash

no-emdash is a cursor rule for Cursor from NotePlan/plugins. It costs 66 tokens per session, scanned A, original, MIT.

A writing rule for using regular hyphens or paired dashes instead of the em dash character in Markdown and code comments.

In plain words
What is it for?
It helps format documentation, comments, examples, and other Markdown text with the specified dash style.
Why use it?
It keeps dash usage consistent and prevents em dashes from appearing where they are not wanted.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit It helps format documentation, comments, examples, and other Markdown text with the specified dash style.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/noteplan/plugins/no-emdash
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.

Clone the repo
git clone --depth 1 https://github.com/NotePlan/plugins

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 no-emdash

README.md
[![agentmods](https://agentmods.dev/badge/rules/noteplan/plugins/no-emdash/github.svg)](https://agentmods.dev/rules/noteplan/plugins/no-emdash)
Your own site
<a href="https://agentmods.dev/rules/noteplan/plugins/no-emdash"><img src="https://agentmods.dev/badge/rules/noteplan/plugins/no-emdash/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for no-emdash

Your own site · 80×15
<a href="https://agentmods.dev/rules/noteplan/plugins/no-emdash"><img src="https://agentmods.dev/badge/rules/noteplan/plugins/no-emdash.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 66 This file is loaded in full into every session.
When invoked 66 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00066 $0.00066
Opus 5.5 $0.00026 $0.00026
Sonnet 5.5 $0.00013 $0.00013
Haiku 4.5 $0.00007 $0.00007

Measured 26d ago against content hash 68e6757657ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

no-emdash 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 26d 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.

.cursor/rules/no-emdash.mdc · 12 lines

What it actually says

Plain punctuation

Follow agents/docs/writing-style.md.

  • Straight " and ' only -- no curly quotes
  • Spaced -- for dashes -- no emdash or endash
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. 26d ago Changed · -11 lines · -74 tokens per session 68e6757657ef
  2. 1mo ago First seen · 23 lines · 140 tokens per session scan A a3a1d30ace05

Subscribe to this mod's changes

no-emdash is a cursor rule published in the GitHub repository NotePlan/plugins (204 stars, last pushed today), licensed MIT. It adds 66 tokens to every session, about $0.0003 per session on Opus 5.5. 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 2026-08-30.