What problem does it solve? Production web deployments break in non-obvious ways: sed -i silently breaks Docker bind mounts, container recreation wipes runtime files, and CDN caches serve stale assets. This Skill provides operational guardrails and verified workflows for safely editing live Docker + nginx/Caddy sites behind Cloudflare. ## Core Features & Use Cases - Pitfall Prevention: Detects and avoids the five fatal traps—Docker recreate wiping runtime files, sed -i inode breakage on bind mounts, CDN cache staleness, CSP breakages, and business-rule violations. - Safe Edit Workflows: Provides inode-preserving Python truncate-and-write edits, backup conventions (.bak-{timestamp}), nginx config reload flows, and docker commit image pinning with pull_policy: never. - SSH & Verification Procedures: Covers secure SSH key handling (heredoc, never write_file), post-change verification with curl header checks, API health probes, and headless Chrome screenshots. - Use Case: You need to update the landing page of a live site served by an nginx container with bind-mounted static files behind Cloudflare. The Skill guides you to back up, edit in-place preserving the inode, verify inside the container, and bust CDN cache with new asset filenames. ## Quick Start Use the production-deploy skill to safely update the index.html on my live Docker nginx site behind Cloudflare without breaking the bind mount.
