Context

• Project type: !find . -maxdepth 1 ( -name 'pyproject.toml' -o -name 'package.json' -o -name 'Cargo.toml' -o -name 'go.mod' )

• Test directories: !find . -maxdepth 2 -type d ( -path '/tests/unit' -o -path '/test/unit' -o -path '*/tests/unit' )

• Last test run: !find .pytest_cache/v/cache -maxdepth 1 -name 'lastfailed'

Parameters

• $1 : Optional path or test pattern

• --watch : Enable watch mode for continuous feedback

• --affected : Only run tests for files changed since last commit

Your task

Delegate this task to the test-runner agent.

Use the Agent tool with subagent_type: test-runner to run fast unit tests only. Pass all the context gathered above and specify Tier 1 (unit tests) execution.

The test-runner agent should:

Run unit tests only (target < 30s):

• Exclude slow, integration, and E2E tests

• Use appropriate markers/flags for the framework:

• pytest: -m "not slow and not integration and not e2e"

• vitest: --exclude="/e2e/" --exclude="/integration/"

• cargo: --lib

• go: -short

Apply options:

• If --watch : Enable continuous test execution

• If --affected : Only test changed files

Fail fast: Stop on first failure (-x or --bail )

Provide concise output:

Unit Tests: [PASS|FAIL] Passed: X | Failed: Y | Duration: Zs

Failures (if any):

• test_name: Brief error (file:line)

Rerun failed: [command]

Post-action guidance:

• If all pass: Ready for continued development

• If failures: Fix before proceeding (fail fast principle)

• If > 30s: Suggest /test:consult for optimization

Provide the agent with:

• All context from the section above

• The parsed parameters

• Explicit instruction: Tier 1 only, skip slow tests

The agent has expertise in:

• Tiered test execution

• Fast feedback loops

• Test isolation and parallelization