Pierre Gergondet developed granular per-file clang-tidy linting for the aspect-build/rules_lint repository, enabling more targeted linting and patching workflows. He implemented per-file output and patch declarations, updating the lint and test workflows to support multiple outputs and exit codes. Using Bazel and Python, Pierre integrated per-file capabilities into the clang-tidy aspect, allowing actions to be applied individually to files and facilitating future reuse for other linters. His work improved maintainability and developer feedback cycles by making linting results more precise. The approach was validated through unit tests and manual adaptation for version upgrades, demonstrating careful engineering depth.