yo

yo is a cursor rule for Cursor from eastlondoner/vibe-tools. It costs 114 tokens per session, scanned A, original, MIT.

A rule that requires the agent to ask for the user's input through a specific notification tool when it needs guidance or finishes a task.

In plain words
What is it for?
It is used when the agent needs an answer or wants to ask what should happen next after completing work.
Why use it?
It provides a defined way to get the user's attention instead of relying only on the normal chat response.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

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/eastlondoner/vibe-tools/yo
Clone the repo
git clone --depth 1 https://github.com/eastlondoner/vibe-tools

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 yo

README.md
[![agentmods](https://agentmods.dev/badge/rules/eastlondoner/vibe-tools/yo.svg)](https://agentmods.dev/rules/eastlondoner/vibe-tools/yo)
Your own site
<a href="https://agentmods.dev/rules/eastlondoner/vibe-tools/yo"><img src="https://agentmods.dev/badge/rules/eastlondoner/vibe-tools/yo.svg" alt="Measured on agentmods" height="20"></a>
Per session 114 This file is loaded in full into every session.
When invoked 114 The same file — it is already loaded in full.
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 5.1 $0.00114 $0.00114
Opus 5 $0.00057 $0.00057
Sonnet 5 $0.00023 $0.00023
Haiku 4.5 $0.00011 $0.00011

Measured 6d ago against content hash 04a8f3454bde, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

yo 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 6d 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

Copies of this mod

1 near-identical copy found in the catalogue:

  • yo — 100% identical, 1 lines differ
.cursor/rules/yo.mdc · 12 lines

What it actually says

If you need my input to answer a question or when you finish a task and want to know what to do next you must send me a yo using the yo-mcp MCP tool.

In the yo you MUST provide ONLY a very short message (think like an email subject line) for why you need my attention / input.

Then reply with your update / question to the normal chat.

This mcp server should be called with this tool name: "mcp_yo-mcp_com_yo"

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. 6d ago First seen · 12 lines · 114 tokens per session scan A 04a8f3454bde

Subscribe to this mod's changes

yo is a cursor rule published in the GitHub repository eastlondoner/vibe-tools (4,829 stars, last pushed 1y ago), licensed MIT. It adds 114 tokens to every session, about $0.0006 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 2026-08-30.