cancel-test-rule

cancel-test-rule is a cursor rule for coding agents from ranyitz/aicm. It costs 0 tokens per session (42 once invoked), scanned A, original, MIT.

A test rule for handling cancelled MCP servers.

In plain words
What is it for?
Installing the cancellation-related rule during MCP cancellation tests.
Why use it?
It provides the rule content needed when testing what happens after an MCP server is cancelled.

Cursor rule

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/ranyitz/aicm/cancel-test-rule
Clone the repo
git clone --depth 1 https://github.com/ranyitz/aicm

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 cancel-test-rule

README.md
[![agentmods](https://agentmods.dev/badge/rules/ranyitz/aicm/cancel-test-rule.svg)](https://agentmods.dev/rules/ranyitz/aicm/cancel-test-rule)
Your own site
<a href="https://agentmods.dev/rules/ranyitz/aicm/cancel-test-rule"><img src="https://agentmods.dev/badge/rules/ranyitz/aicm/cancel-test-rule.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 42 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00000 $0.00042
Opus 5 $0.00000 $0.00021
Sonnet 5 $0.00000 $0.00008
Haiku 4.5 $0.00000 $0.00004

Measured 4d ago against content hash a818d7c7d1d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cancel-test-rule 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 4d 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.

tests/fixtures/mcp-canceled-servers/rules/cancel-test-rule.mdc · 13 lines

What it actually says

Cancel Test Rule

This is a test rule for MCP canceled servers testing.

Content

This rule should be installed while handling canceled MCP servers.

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. 4d ago First seen · 13 lines · 0 tokens per session scan A a818d7c7d1d9

Subscribe to this mod's changes

cancel-test-rule is a cursor rule published in the GitHub repository ranyitz/aicm (36 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 42 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 2026-08-30.