Month: 2026-05 — Delivered a cross-platform compromised npm package detection policy for Fleet Workstations, strengthening supply-chain security across macOS, Windows, and Linux. Implemented the tanstack-supply-chain-attack policy, integrated into Fleet UI for easy triage, and provided remediation guidance to remove affected packages and rotate credentials. Added per-user npm min-release-age enforcement and host labeling for machines reporting npm inventory, with automated remediation and cross-platform scripts to update per-user npm configuration. These changes improve early detection, reduce remediation time, and strengthen developer workflow security. Tech and collaboration: YAML policy definitions, osquery-based cross-platform checks, Fleet Workstations policy lifecycle, cross-platform scripting, and release-note style documentation.

March 2026 — Key YAML validation fix for Fleet Workstations and stability improvements for Windows fleet config. Fixed a YAML validation error by removing the duplicate labels_include_any mapping key in claude/windows within fleets/workstations.yml (commit ae104134143b27554445c7aacde3d1d3cda62040). The change preserves the first occurrence and eliminates the duplicate, ensuring valid deployment manifests across environments. Result: reduced deployment risk, faster issue resolution, and improved maintainability.