Report server configuration: project dir, run script, interpreter, VUnit version, and whether a simulator appears available. Call this first when diagnosing setup problems.

List all test cases (lib.entity[.proc]) the project knows about. Does not require a simulator.

List all source files in compile order. Does not require a simulator.

Compile all sources in the VUnit project (--compile). Requires a simulator. Safe to re-run.

Run VUnit tests and return a pass/fail summary plus the list of failing tests. Patterns default to ['*'] (run everything). A JUnit XML is always written next to the output dir for vunit_get_report. Requires a simulator.

Re-read the last run's JUnit report from the output dir (no re-run). Returns per-test status, with the number of failing VUnit checks per test when its log shows any. Pass a failing test name to vunit_get_test_log to see why it failed.

Get the log output for one test (the per-test output.txt), which is how you see WHY a test failed. test_name is the full name from vunit_list_tests / vunit_get_report. Returns the last 100 lines by default (failure info appears at the end); pass a larger lines for more context. When the log contains failing VUnit checks, a structured "Check results" section is appended after the log.

Export the project model (source files, all tests, attributes) as JSON via --export-json. Attributes carry requirement/traceability data. The export is cached at .vunit-mcp-cache/export.json in the project and re-run only when the project's sources change. Does not require a simulator.

Return the ordered list of source files needed to implement one test case: the files it depends on to elaborate, grouped by library in compile order (VUnit built-in files summarized as a count). Does not compile and needs no simulator.