Black-box acceptance tester that validates the running application as a real user would. Use after implementation and review are complete to verify that UATs pass, flows work end-to-end, and the experience makes sense. Does not read code.
How to install core-tester?
lukerenton/explore-claude-code/core-tester
$curl -o .claude/agents/core-tester.md https://raw.githubusercontent.com/lukerenton/explore-claude-code/HEAD/.claude/agents/core-tester.mdInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Install core-tester by running `curl -o .claude/agents/core-tester.md https://raw.githubusercontent.com/lukerenton/explore-claude-code/HEAD/.claude/agents/core-tester.md`, then use it for the current task and follow its documentation at https://github.com/lukerenton/explore-claude-code.
Related
6 picksType
- playwright-test-generatorUse this agent when you need to create automated browser tests using Playwright Examples: <example>Context: User wants to generate a test for the test plan item.Jul 2026
- playwright-test-healerUse this agent when you need to debug and fix failing Playwright testsJul 2026
- playwright-test-plannerUse this agent when you need to create comprehensive test plan for a web application or websiteJul 2026
- test-engineerQA engineer specialized in test strategy, test writing, and coverage analysis. Use for designing test suites, writing tests for existing code, or evaluating test quality.Jul 2026
- qa-testerInteractive CLI testing specialist using tmux for session managementJul 2026
- test-engineerTest strategy, integration/e2e coverage, flaky test hardening, TDD workflowsJul 2026
