Claude Code automated test demo

Automated test demo for Claude Code

tailtest fires every time Claude Code edits a file. See it run.

tailtest for Claude Code v3.14.0 · 491 tests · MIT

Trigger model

PostToolUse hook

IDE coverage

Claude Code

Best for

Claude Code users; most precise hook-fired auto experience and the largest dogfood test surface.

How tailtest fires in Claude Code

Claude Code plugin. Hook-driven; fires on every PostToolUse Edit / Write.

Claude Code session

> Add discount validator to checkout.py

# PostToolUse hook fires

tailtest: checkout.py queued

Generating scenarios... 8 written

pytest -q tests/test_checkout.py

8 passed 0.3s

tailtest: 8 scenarios -- all passed.

# Claude Code keeps building.

Marketplace install

$ claude plugin marketplace add avansaber/tailtest

$ claude plugin install tailtest@avansaber-tailtest

# Restart Claude Code. Then just build.

Claude Code users; most precise hook-fired auto experience and the largest dogfood test surface.

Cursor demo

afterFileEdit + stop hooks

Codex CLI demo

Stop hook + session_start

Cline demo

.clinerules instruction + auto-approve OR /tailtest-test slash