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Test Implementation Patterns — measured AI agent skill | DecimalAI

shinpr/test-implement

NewSkillScoreMaintained

Implements React/TypeScript unit, integration, and browser E2E tests with the repository's configured runner, mocks, setup, and browser harness. Use when creating or completing frontend tests and generated test skeletons.

Testingby shinpr

Links this skill to your agents and keeps it current with the author’s updates.

Automatic

QA & Test Engineering pack

1 · One-time — install the CLI (docs ↗)

pip install decimalai

2 · Get the skill — writes .claude/skills/shinpr-test-implement/SKILL.md

decimalai skills pull shinpr-test-implement --out .claude/skills/

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/shinpr-test-implement/SKILL.md https://app.decimal.ai/s/shinpr-test-implement/SKILL.md

Raw file: /s/shinpr-test-implement/SKILL.md ↗ · machine-readable summary at /s/shinpr-test-implement.json ↗

In productionGlobal

how this skill behaves on real traffic · last 30 days

No production data for this skill yet — usage numbers appear here once agents start running it.

Anonymized aggregate across every org using this skill — proof from real production use, not a demo.

Does this skill help? · Benchmark: with vs. withoutsign in to run this on your agents

25 test cases from the publisher’s eval.yaml · each run twice on gemini-3.6-flash — with the skill injected, then without · last run 2h ago

Yes — +16% lift-16% tokens0% turns32% of whole cases pass with skill (8/25)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-14	✗→✓	▲ Improved	1%	0%
case-15	✗→✓	▲ Improved	13%	0%
case-19	✗→✓	▲ Improved	-71%	0%
case-20	✗→✓	▲ Improved	-27%	0%
case-18	✓→✓	＝ Same ✓	-46%	0%

Showing 5 of 25 cases

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/10/2026

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

shinpr / claude-code-workflows

skills/test-implement/SKILL.md

View on GitHub ↗

License MITImported 8/10/2026Version v2Bundled 2 files

Skill contents

references/

SKILL.md

Test Implementation Patterns

Reference Selection

| Test Type | Reference | When to Use | |-----------|-----------|-------------| | Unit / Integration | references/frontend.md | Implementing React component tests with the repository's configured runner and network mocking layer | | E2E | references/e2e.md | Implementing browser-level E2E tests in the existing harness, or Playwright when the approved work introduces a harness |

Common Principles

AAA Structure

All tests follow Arrange-Act-Assert:

Arrange: Set up preconditions and inputs
Act: Execute the behavior under test
Assert: Verify the expected outcome

Test Independence

Each test runs independently without depending on other tests
No shared mutable state between tests
Deterministic execution — mock random and time dependencies

Naming

Test names describe expected behavior from user perspective
One test verifies one behavior

Want to see if shinpr/test-implement would activate on your phrasing? Try it before you install — no LLM call, no signup.

Other measured skills in the registry, with their headline benchmark lift.