Running XDEBUG_MODE=coverage composer coverage on PHP 8.4.21 with PCOV 1.0.12 passes the PHPUnit suite with 329 tests and 749 assertions, and line coverage is 87.72%. However, branch coverage is not reported with the installed PCOV driver, while class coverage is 52.84% and method coverage is 73.64%. Clover also shows under-covered files that sit below 80% line coverage, including src/Internal/Runtime/CredentialLifecycle.php, src/Transport/StdioTransport.php, src/Internal/Runtime/ArtifactDispatcher.php, src/Internal/Runtime/JobListHandler.php, src/Client/ResultChunkAssembler.php, src/Internal/Client/ResponseRouter.php, src/Auth/JwtAuth.php, and src/Runtime/JobCredentialControls.php.
The current coverage signal therefore confirms the line threshold but does not answer the requested branch threshold, and several critical protocol paths still have untested branches around credential issuance, stdio framing, artifact errors, list job filters, result chunk integrity, response routing, JWT claims, and credential rotation.
Fix prompt: Add an Xdebug-backed coverage job or local script that reports branch coverage, then set an explicit branch target. Add focused PHPUnit coverage for the listed under-covered classes, favoring data providers for filter and validation matrices and property-style tests where invariants are important, such as result chunk sequence contiguity and cost budget conservation.
Running
XDEBUG_MODE=coverage composer coverageon PHP 8.4.21 with PCOV 1.0.12 passes the PHPUnit suite with 329 tests and 749 assertions, and line coverage is 87.72%. However, branch coverage is not reported with the installed PCOV driver, while class coverage is 52.84% and method coverage is 73.64%. Clover also shows under-covered files that sit below 80% line coverage, includingsrc/Internal/Runtime/CredentialLifecycle.php,src/Transport/StdioTransport.php,src/Internal/Runtime/ArtifactDispatcher.php,src/Internal/Runtime/JobListHandler.php,src/Client/ResultChunkAssembler.php,src/Internal/Client/ResponseRouter.php,src/Auth/JwtAuth.php, andsrc/Runtime/JobCredentialControls.php.The current coverage signal therefore confirms the line threshold but does not answer the requested branch threshold, and several critical protocol paths still have untested branches around credential issuance, stdio framing, artifact errors, list job filters, result chunk integrity, response routing, JWT claims, and credential rotation.
Fix prompt: Add an Xdebug-backed coverage job or local script that reports branch coverage, then set an explicit branch target. Add focused PHPUnit coverage for the listed under-covered classes, favoring data providers for filter and validation matrices and property-style tests where invariants are important, such as result chunk sequence contiguity and cost budget conservation.