Test Doubles | Agent Skills Atlas

About this skill

Choose stubs, fakes, and mocks deliberately and default to verifying state over interaction so tests survive refactors. Use when a test needs to stand in for a slow, external, or nondeterministic dependency.

Quick start

Copy the install prompt. Use the green button above this README.
Send it to your agent. Paste it into your coding agent’s chat and send.
Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.

Installation guide →

Review, license & listing details

Review the source before using this skill

This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.

Automated security scan: Partial

Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.

0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

Content SHA-256: 13187a54969b9ec72c14bc78b6e3926ee4dc3708e06ff7c846844d6ec42b9173

About scan coverage and limitations

Original listing metadata

Original name

test-doubles

Original description

About this listing

Category: Engineering
Reported license: MIT
Listing language (estimated): English
Review status: Not individually reviewed
Agent compatibility: Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.