relay: Skill for Claude Code

.agents/skills/wrdn-effect-vitest-tests/SKILL.md

wrdn-effect-vitest-tests is a skill for Claude Code from adarshp14/relay. It costs 29 tokens per session (200 once invoked), scanned A, a copy of wrdn-effect-vitest-tests, MIT.

A set of testing rules for Effect-based TypeScript projects using Effect-aware Vitest helpers. Vitest is a JavaScript testing framework, and conditional assertions are checks that only run in some branches.

In plain words
What is it for?
Writing and fixing tests, replacing direct Vitest imports, and splitting conditional behavior into clear test cases.
Why use it?
It keeps tests predictable and makes every expected outcome explicit. It also prevents tests from depending on raw framework imports where the project expects Effect integration.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: installed under .agents/ (shared by several agents).

This is adarshp14/relay's own configuration. It tells Claude Code how to work on relay itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything relay configures →

Reuse

Borrowing it

Nothing to install: this file belongs to adarshp14/relay. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/adarshp14/relay/main/.agents/skills/wrdn-effect-vitest-tests/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/adarshp14/relay

Made for: Claude Code.

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 wrdn-effect-vitest-tests

README.md
[![agentmods](https://agentmods.dev/badge/skills/adarshp14/relay/wrdn-effect-vitest-tests.svg)](https://agentmods.dev/skills/adarshp14/relay/wrdn-effect-vitest-tests)
Your own site
<a href="https://agentmods.dev/skills/adarshp14/relay/wrdn-effect-vitest-tests"><img src="https://agentmods.dev/badge/skills/adarshp14/relay/wrdn-effect-vitest-tests.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 200 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00029 $0.00200
Opus 5 $0.00015 $0.00100
Sonnet 5 $0.00006 $0.00040
Haiku 4.5 $0.00003 $0.00020

Measured 5d ago against content hash d3835d20da79, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

wrdn-effect-vitest-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 5d 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.

Origin

This is a copy

100% identical to wrdn-effect-vitest-tests — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/wrdn-effect-vitest-tests/SKILL.md · 30 lines

What it actually says

Use @effect/vitest for tests in this repo.

Fix Shape

  • Import describe, it, expect, and helpers from @effect/vitest.
  • Import utility helpers from @effect/vitest/utils when needed.
  • Do not import from raw vitest except in config or tooling files.
  • Do not put expect(...) behind if, ternary, logical, or switch branches.
  • Split conditional behavior into separate tests, or assert the branch condition and expected value explicitly.

Bad

if (result.ok) {
  expect(result.value).toBe("x");
}

Good

expect(result).toEqual({ ok: true, value: "x" });
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. 5d ago First seen · 30 lines · 29 tokens per session scan A d3835d20da79

Subscribe to this mod's changes

wrdn-effect-vitest-tests is a skill published in the GitHub repository adarshp14/relay (0 stars, last pushed 2mo ago), licensed MIT. It adds 29 tokens to every session and 200 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to wrdn-effect-vitest-tests, differing in 0 lines, and is treated as a copy.

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