test_runnerlisted

# test_runner Execute and analyze tests. ## Operations - `test.run(target?, filter?)` — run tests; returns pass/fail/error counts + failure details. - `test.coverage(target?)` — coverage report with file-level breakdown. - `test.diagnose(failure)` — suggest root cause from stack trace + recent diffs. - `test.rerun(strategy)` — retry-only-failing, full, or bisect-over-commits. ## I/O Contract ```yaml io_contract: input: { op, "target?", "filter?", "coverage?" } output: { summary: { passed, failed, skipped }, failures: [ { name, trace } ], "coverage?" } idempotent: partial side_effects: [shell, fs] ``` ## Framework Detection Auto-detects pytest, jest, mocha, cargo test, go test, rspec, phpunit, dotnet test, JUnit, etc. Respects project test config.