generate-tests

A command that creates unit or integration tests for Go code. Unit tests check one part of a program; integration tests check how several parts work together.

In plain words
What is it for?
Use it to test a chosen Go function or file, including normal inputs, failures, boundary cases, invalid HTTP methods, and command-line behavior.
Why use it?
It reduces the time needed to plan test cases and helps tests follow the project’s existing structure, naming, and coverage expectations.

Command for Claude Code

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/nylas/cli/generate-tests
Clone the repo
git clone --depth 1 https://github.com/nylas/cli

Made for: Claude Code.

Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 408 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 $0.00017 $0.00408
Opus 5 $0.00009 $0.00204
Sonnet 5 $0.00003 $0.00082
Haiku 4.5 $0.00002 $0.00041

Measured yesterday against content hash 20db59aebdde, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

generate-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 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.

.claude/commands/generate-tests.md · 52 lines

What it actually says

Generate Tests

Generate unit or integration tests for Go code.

Patterns: See .claude/shared/patterns/ for templates:

  • go-test-patterns.md - Unit test patterns
  • integration-test-patterns.md - CLI integration tests + rate limiting

Agent: See .claude/agents/test-writer.md for autonomous test generation.

Instructions

  1. Ask me for:

    • Which file/function to test
    • Test type: unit or integration
    • Specific scenarios to cover (optional)
  2. Read the appropriate pattern file for templates.

  3. Analyze the code and generate tests following project patterns.

Integration Tests

See .claude/rules/testing.md for location, build tags, and naming. Key additions:

  • Always use skipIfMissingCreds(t) and acquireRateLimit(t)
  • Run: go test -tags=integration ./internal/cli/integration/... -run "TestCLI_Name"

Test Categories to Cover

Category Description Examples
Happy path Normal inputs, success cases Valid email, correct credentials
Error cases Invalid inputs, failures Empty fields, bad format
Edge cases Boundary conditions Empty slices, nil values, unicode
Method guards Wrong HTTP methods GET instead of POST
JSON handling Marshaling/unmarshaling Invalid JSON, missing fields

Verification

After generating tests:

  • Tests pass: go test ./path/to/package/...
  • Linting passes: golangci-lint run
  • Coverage improved: make test-coverage

Full test commands: See /run-tests for all test targets and environment setup.

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 · 52 lines · 17 tokens per session scan A 20db59aebdde

Subscribe to this mod's changes

generate-tests is a command published in the GitHub repository nylas/cli (68 stars, last pushed 13d ago), licensed MIT. It adds 17 tokens to every session and 408 once invoked, about $0.0001 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 2026-08-30.