deny-ctg

deny-ctg is a cursor rule for Cursor from sayanarijit/cottage. It costs 207 tokens per session, scanned A, original, Apache-2.0.

A safety rule that blocks an AI coding agent from running the ctg or ctgx commands and from opening files that may contain secrets.

In plain words
What is it for?
Protecting .cottage directories, files matching *.cott.*, and decrypted files with encrypted counterparts while the agent works.
Why use it?
It reduces the risk of exposing encrypted credentials or other private data, and prevents these commands from being run accidentally.

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/sayanarijit/cottage/deny-ctg
Clone the repo
git clone --depth 1 https://github.com/sayanarijit/cottage

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 deny-ctg

README.md
[![agentmods](https://agentmods.dev/badge/rules/sayanarijit/cottage/deny-ctg.svg)](https://agentmods.dev/rules/sayanarijit/cottage/deny-ctg)
Your own site
<a href="https://agentmods.dev/rules/sayanarijit/cottage/deny-ctg"><img src="https://agentmods.dev/badge/rules/sayanarijit/cottage/deny-ctg.svg" alt="Measured on agentmods" height="20"></a>
Per session 207 This file is loaded in full into every session.
When invoked 207 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 $0.00207 $0.00207
Opus 5 $0.00103 $0.00103
Sonnet 5 $0.00041 $0.00041
Haiku 4.5 $0.00021 $0.00021

Measured 6d ago against content hash 88ef7dfb2543, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

deny-ctg 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.

.cursor/rules/deny-ctg.mdc · 18 lines

What it actually says

Deny ctg Command Execution and Secret File Access

The ctg and ctgx CLI commands are strictly forbidden from being executed by Cursor's AI agent in this workspace.

  • Never propose or run any ctg or ctgx commands (e.g., ctg clean, ctg decrypt, ctg run, ctg env, etc.).
  • Never invoke lifecycle hooks or background tasks that execute ctg or ctgx.

Cursor's AI agent must also never view, read, edit, create, or otherwise access secret files:

  • Anything inside a .cottage/ directory.
  • Any file matching *.cott.* (encrypted *.cott.age blobs and redacted *.cott.toml previews).
  • Any decrypted file {file} that has a corresponding {file}.cott.age encrypted counterpart on disk.
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 · 18 lines · 207 tokens per session scan A 88ef7dfb2543

Subscribe to this mod's changes

deny-ctg is a cursor rule published in the GitHub repository sayanarijit/cottage (47 stars, last pushed 8d ago), licensed Apache-2.0. It adds 207 tokens to every session, about $0.0010 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.