What problem does it solve? Git operations like pushing over HTTPS or creating pull requests with gh fail for opaque reasons: global gitconfig entries hijack remotes, credential helpers conflict, and PATs lack write scopes. This Skill traces the actual configuration source and returns a problem-to-root-cause-to-fix report instead of guesswork. ## Core Features & Use Cases - Configuration Tracing: Runs git config --list --show-origin to locate insteadOf rewrites and credential.helper overrides in global versus repo-level config. - Auth Diagnosis: Distinguishes being logged in via gh auth status from actually having repo and write:repository PAT scopes, and checks SSH key registration. - NFS-Safe Operation: Uses timeout-bounded shallow commands on slow NFS mounts where full traversal would hang at 300 seconds. - Use Case: When gh pr create fails with "not accessible" despite a successful login, the Skill identifies the missing PAT scope and outputs the exact remediation steps. ## Quick Start Diagnose why gh pr create fails in my repository at /work/proj and give me the exact fix commands.