tailtest for Cursor

tailtest fires a test cycle at the end of every Cursor agent turn -- automatically, with no prompting.

Full documentation at tailtest.com/docs/cursor

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Install

From the Cursor Marketplace (recommended):

Search for Tailtest in the Cursor plugin marketplace and click Install. Restart Cursor.

Manual:

git clone https://github.com/avansaber/tailtest-cursor \
  ~/.cursor/plugins/local/tailtest-cursor

Restart Cursor after cloning.

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How it works

1. afterFileEdit hook fires as the agent writes files, recording each path
2. stop hook fires at turn end and sends tailtest: run tests for: ...
3. Cursor re-enters the agent -- scenarios are generated, tests are written, run, and reported

Pass = silent. Fail = one line surfaced before the agent moves on.

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Quick config

Create .tailtest/config.json in your project root:

{ "depth": "standard" }

Options: simple (2-3 scenarios), standard (5-8, default), thorough (10-15).

See tailtest.com/docs/config for all options.

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Other tailtest variants

Same R1-R15 rule layer, same adversarial test mode, different host integration. This repo is the Cursor variant.

• tailtest -- Claude Code plugin (hook-driven)
• tailtest-cursor -- Cursor plugin (hook-driven; this repo)
• tailtest-codex -- Codex CLI plugin (hook-driven)
• tailtest-cline -- Cline plugin (MCP-driven; reaches 8+ editors via Cline's host coverage)

See tailtest.com/demo/cursor for a live walkthrough of this variant, tailtest.com/comparison for a feature matrix across all four, or tailtest.com for the project home.

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License

MIT