Docker image building, Compose development environments, CI/CD pipeline, and testing infrastructure. Use when working with Dockerfiles, docker-compose, GitHub Actions CI, Make targets, integration tests, or deployment workflows.
Security and privacy review for tailrelay — dependency CVE scanning, Go module auditing, auth review, and code-level vulnerability checks. Use when reviewing code for security issues, auditing Dockerfile dependencies, checking for secrets/injection risks, or assessing privacy of logged/persisted data.
Tailscale VPN daemon management, CLI integration, authentication, and networking for the tailrelay container. Use when working with Tailscale configuration, login flows, device authentication, MagicDNS, HTTPS certificates, or network connectivity issues.
Writing tests and CI/CD for tailrelay — Go unit tests, Python integration tests, CI pipeline jobs, and test infrastructure. Use when adding new tests, extending the integration suite, modifying ci.yml, or improving test coverage for any Go package or the container behaviour.
Go Web UI application development — handlers, authentication, backup, frontend SPA, build workflow, and testing. Use when working with the webui/ directory, Go code, frontend assets, HTML templates, the SPA build system, or any Web UI feature development.
Updating all tailrelay documentation — README, CHANGELOG, release notes, AGENTS.md, SKILL.md files, webui/README.md, and the Docusaurus docs site. Use when adding user-facing features, releasing a new version, updating component versions, or when any doc's reviewed_at SHA is out of date with HEAD.
tailscale serve and funnel relay management — HTTPS, TCP, and Funnel relay types, serve_relays.json format, reconciliation flow, API endpoints, migration from legacy caddy/socat configs, ErrTailscaleNotReady and ErrFunnelNotAllowed handling. Use when working with internal/serve/, handlers/serve.go, or /api/serve/* endpoints.
Git workflow guidance for commits, branches, and pull requests