write-unit-tests

A command guide for generating unit tests, which check individual functions or pieces of code in isolation.

In plain words
What is it for?
Use it to create tests for public functions and methods, including successful inputs, invalid inputs, boundary cases, errors, and mocked dependencies.
Why use it?
It reduces the chance that normal cases, edge cases, or errors go untested and makes tests follow the project's conventions.

Command

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 commands/gokulkrishh/.cursor/write-unit-tests
Clone the repo
git clone --depth 1 https://github.com/gokulkrishh/.cursor
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 171 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 $0.00171
Opus 5 $0.00000 $0.00086
Sonnet 5 $0.00000 $0.00034
Haiku 4.5 $0.00000 $0.00017

Measured 3d ago against content hash f8d148df22fb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

write-unit-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.

commands/write-unit-tests.md · 35 lines

What it actually says

Write Unit Tests

Create comprehensive unit tests for the current code. Include:

Test Coverage

  • Test all public methods and functions
  • Cover edge cases and error conditions
  • Test both positive and negative scenarios
  • Aim for high code coverage

Test Structure

  • Use the project's testing framework conventions
  • Write clear, descriptive test names
  • Follow the Arrange-Act-Assert pattern
  • Group related tests logically

Test Cases to Include

  • Happy path scenarios
  • Edge cases and boundary conditions
  • Error handling and exception cases
  • Mock external dependencies appropriately

Test Quality

  • Make tests independent and isolated
  • Ensure tests are deterministic and repeatable
  • Keep tests simple and focused on one thing
  • Add helpful assertion messages

Generate the test file with proper imports and setup according to the project's testing conventions.

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 · 35 lines · 0 tokens per session scan A f8d148df22fb

Subscribe to this mod's changes

write-unit-tests is a command published in the GitHub repository gokulkrishh/.cursor (3 stars, last pushed 7mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 171 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.