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.
npx agentmods add rules/usrrname/cursorrules/react-component-hook-testing-autogit clone --depth 1 https://github.com/usrrname/cursorrulesWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.01159 |
| Opus 5 | $0.00000 | $0.00580 |
| Sonnet 5 | $0.00000 | $0.00232 |
| Haiku 4.5 | $0.00000 | $0.00116 |
Grade A, and why
react-component-hook-testing-auto 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.
How it starts
The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.
React Unit Testing Standards
Critical Rules
- Use
@testing-library/reactfor rendering components; avoid shallow rendering or testing implementation details. - Prefer accessibility queries (
getByRole,getByLabelText, etc.) overgetByTestIdor CSS selectors. - Simulate user interactions with
userEventinstead of firing raw DOM events. - Each test must contain at least one assertion using
expect. - Group related tests in
describeblocks with descriptive titles. - Avoid querying private DOM nodes with
container.querySelector. - Do not snapshot the entire DOM tree for dynamic components; assert specific, stable text/attributes.
- For hooks, use
@testing-library/react'srenderHookor equivalent utilities. - Always test custom hooks in isolation and with all relevant edge cases.
- Mock external dependencies and context providers as needed for hooks.
- Avoid using
anyin test or hook typings; always use explicit types. - Clean up side-effects after each test (rely on library auto-cleanup or call
cleanup()). - Do not use
.skipor.onlyin committed test code.
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.
- yesterday First seen · 123 lines · 0 tokens per session scan A 69d8b7f9e0e2
react-component-hook-testing-auto is a cursor rule published in the GitHub repository usrrname/cursorrules (10 stars, last pushed 4mo ago), licensed ISC. It costs nothing until one of its globs matches a file; then it loads 1,159 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 2026-08-31.
Other cursor rules, from other repositories
code-optimization
Guidelines for optimizing duplicate and poorly structured code.
implementation-workflow
Required plan-first workflow for any implementation request (steps 1–5).
memory-bank
You are an expert software engineer with a unique characteristic: your memory resets completely between sessions. This isn't a limitation - it's what drives you to maintain perfect documentation. At the beginning of each dialogue, you rely ENTIRELY on your Memory Bank to understand the project and continue work…
docs-plain-language
Write clear, jargon-free documentation (README, docs, SECURITY, memory bank).
general
You are running in Cursor IDE. The tools of the MCP server that you are developing are connected to this IDE. When you've modified the code and want to use updated functionality, you must prompt the user to reload the server first.
angular
Angular: signals, standalone components, RxJS patterns.