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Test-driven development v1.0.0

Use this resource to write code through the test, implement, refactor cycle

New

  • 525 downloads
  • 192 likes
  • 165 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install tdd-red-green-refactor

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent first writes a failing test, adds the minimal code to make it pass, then refactors. It keeps tests isolated, data explicit and assertions precise.

Mostly picked by

Updated November 2, 2026

Card for the “Test-driven development” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: TDD workflow, priority rules and quick reference
  • references/: red-green cycle, assertions, isolation, test data and suite organization

Good fit for

  • You want to write tests before a new feature
  • Your test suite has empty assertions or hidden dependencies

Not for

    Tags

    • tdd
    • tests
    • refactoring
    • assertions

    About

    You say

    “Write a failing test for the VAT calculation of an order, then implement the minimum to make it pass.”

    Card for the “Test-driven development” skill

    Skill published by pymodel under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to write code through the test, implement, refactor cycle
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.4 KB
    • references/assert-custom-matchers.md2.3 KB
    • references/assert-error-messages.md1.9 KB
    • references/assert-no-assertions-antipattern.md2.2 KB
    • references/assert-snapshot-testing.md2.2 KB
    • references/assert-specific-assertions.md2 KB
    • references/cycle-maintain-test-list.md2 KB
    • references/cycle-minimal-code-to-pass.md1.8 KB
    • references/cycle-refactor-after-green.md1.9 KB
    • references/cycle-small-increments.md2.2 KB
    • references/cycle-verify-test-fails-first.md1.9 KB
    • references/cycle-write-test-first.md2 KB
    • references/data-avoid-mystery-guests.md2 KB
    • references/data-builder-pattern.md2.7 KB
    • references/data-minimal-setup.md1.8 KB
    • references/data-unique-identifiers.md2.4 KB
    • references/data-use-factories.md2.3 KB
    • references/design-aaa-pattern.md2.1 KB
    • references/design-avoid-logic-in-tests.md2.4 KB
    • references/design-descriptive-test-names.md1.8 KB
    • references/design-one-assertion-per-test.md2.3 KB
    • references/design-test-behavior-not-implementation.md2 KB
    • references/design-test-edge-cases.md2.5 KB
    • references/isolate-deterministic-tests.md2.2 KB
    • references/isolate-mock-external-dependencies.md1.9 KB
    • references/isolate-no-shared-state.md1.9 KB
    • references/isolate-prefer-stubs-over-mocks.md2.4 KB
    • references/isolate-use-dependency-injection.md2.5 KB
    • references/org-file-structure.md1.7 KB
    • references/org-group-by-behavior.md2.1 KB
    • references/org-parameterized-tests.md2.5 KB
    • references/org-setup-teardown.md2.4 KB
    • references/org-test-utilities.md2.4 KB
    • references/perf-avoid-network-calls.md2.1 KB
    • references/perf-avoid-sleep.md2.2 KB
    • references/perf-fast-unit-tests.md2.1 KB
    • references/perf-fix-flaky-tests.md2.3 KB
    • references/perf-parallelize-tests.md2.3 KB
    • references/strat-coverage-targets.md2.3 KB
    • references/strat-e2e-critical-paths.md2.5 KB
    • references/strat-integration-boundaries.md2.5 KB
    • references/strat-mutation-testing.md2.1 KB
    • references/strat-test-pyramid.md2.4 KB
    • SKILL.md4.7 KB

    Origin and licence

    Listed unmodified

    Author
    pymodel
    Source
    github.com/pymodel/react-frontend-skills/tree/b210600fdf49441ee1efeca2cbdc05599ec03019/skills/tdd
    Licence
    MIT

    Notice

    « tdd » (pymodel, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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