typescript-tests

typescript-tests is a cursor rule for Cursor from Sourcery-info/barracuda-mcp. It costs 0 tokens per session (235 once invoked), scanned A, original, MIT.

Repository rules for writing TypeScript tests with Vitest, a JavaScript and TypeScript test runner, including mocking network calls and separating end-to-end tests.

In plain words
What is it for?
Use them when adding or changing TypeScript tests, especially tests for HTTP requests, timeouts, error handling, and MCP tool execution.
Why use it?
They keep tests consistent, avoid contacting a real OpenAleph service during unit tests, and require important URL and error cases to be checked.

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/sourcery-info/barracuda-mcp/typescript-tests
Clone the repo
git clone --depth 1 https://github.com/Sourcery-info/barracuda-mcp

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 typescript-tests

README.md
[![agentmods](https://agentmods.dev/badge/rules/sourcery-info/barracuda-mcp/typescript-tests.svg)](https://agentmods.dev/rules/sourcery-info/barracuda-mcp/typescript-tests)
Your own site
<a href="https://agentmods.dev/rules/sourcery-info/barracuda-mcp/typescript-tests"><img src="https://agentmods.dev/badge/rules/sourcery-info/barracuda-mcp/typescript-tests.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 235 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 $0.00235
Opus 5 $0.00000 $0.00118
Sonnet 5 $0.00000 $0.00047
Haiku 4.5 $0.00000 $0.00023

Measured 3d ago against content hash 7c30c0b9fe30, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

typescript-tests 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 3d 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/typescript-tests.mdc · 15 lines

What it actually says

TypeScript and tests

  • Use Vitest for unit tests. Place tests under test/ as *.test.ts.
  • Do not hit real OpenAleph in unit tests: mock fetch with vitest vi.fn, inject a stub client, or use MSW if you add HTTP-level integration tests.
  • End-to-end tests against a real instance live in test/e2e/*.e2e.test.ts and run with npm run test:e2e (loads .env via test/e2e/setup-env.ts). Default npm test excludes that folder.
  • Test URL/query construction and error mapping (AlephHttpError, timeouts) explicitly.
  • Export thin functions for tool execution (e.g. runAlephSearchTool) when it improves testability without widening the public MCP surface.
  • Match existing style: ESM, NodeNext resolution, strict TypeScript, explicit return types on public exports where it helps readability.
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. 3d ago First seen · 15 lines · 0 tokens per session scan A 7c30c0b9fe30

Subscribe to this mod's changes

typescript-tests is a cursor rule published in the GitHub repository Sourcery-info/barracuda-mcp (1 stars, last pushed 4mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 235 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.