documentation

Project documentation rules describing where software design patterns and subsystem information are kept, along with key files such as package.json, README.md, and .env.example.

In plain words
What is it for?
Use it when understanding a subsystem, choosing an implementation pattern, checking project setup, or finding instructions for environment variables and external documents.
Why use it?
It gives the assistant a shared map of the project and points it to current implementation guidance before changing code. It also explains how to handle links to outside documentation.

Cursor rule for 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/lastbotinc/cursor-rules-tools/documentation
Clone the repo
git clone --depth 1 https://github.com/LastBotInc/cursor-rules-tools

Made for: Cursor.

Per session 422 This file is loaded in full into every session.
When invoked 422 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 $0.00422 $0.00422
Opus 5 $0.00211 $0.00211
Sonnet 5 $0.00084 $0.00084
Haiku 4.5 $0.00042 $0.00042

Measured yesterday against content hash 975a08e5177d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

documentation 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 yesterday.

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/documentation.mdc · 30 lines

What it actually says

Subfolders under the docs folder to update software subsystem decomposition and sw design patterns

- patterns: folder that contains software pattern for implementing certain kind of parts in the system. Use these always to get up to date information about how to implement features.
- subsystems: folder that contains subsystem descriptions and links to the files belonging to a subsystem. Use these to document and understand about the details of single subsystems and to evaluate the relations between the componenents. 

important files at root folder

- `package.json`: List of used npm packages and versions.
- `README.md`: **Comprehensive setup guide**, tool descriptions, usage examples, and API key instructions
- `.env.example`: Template for required environment variables and API keys

Link Handling: - Documents might contain links to certain document in external repos. Read them separately when needed. - For http:// or https:// links: Use web search to get information from the URL if needed for the task (e.g., documentation, error context).

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. yesterday First seen · 30 lines · 422 tokens per session scan A 975a08e5177d

Subscribe to this mod's changes

documentation is a cursor rule published in the GitHub repository LastBotInc/cursor-rules-tools (3 stars, last pushed 1y ago), licensed MIT. It adds 422 tokens to every session, about $0.0021 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 2026-08-31.