I diagnose and fix one reproducible defect in an existing TypeScript, Bun, React or Python application.

You provide expected versus actual behavior, exact reproduction steps, a safe development repository or minimal reproduction, setup instructions and runtime versions. Before accepting the work, I confirm that the issue is reproducible outside production and fits roughly three focused engineering hours.

You receive root-cause notes, a focused patch, one regression test when the codebase has a workable test harness, results from the relevant checks, and one consolidated review limited to the agreed defect.

This pilot excludes new applications, broad feature work, “fix all bugs”, production incidents, live customer data, secrets, authentication, payments, security remediation, destructive migrations, mobile/Xcode work, deployments and multiple unrelated defects. If inspection shows a larger scope, I decline or quote it separately before changing code.

Work begins only after Contra escrow is fully funded and fit is confirmed.