What problem does it solve? Coordinating a daily release across a protected main branch, an epoch-anchored CalVer version scheme, and a manual workflow_dispatch release pipeline is error-prone: silent false-green CI gates, null-vs-empty gh CLI traps, tag-push ordering deadlocks, and forgotten back-merges can strand an entire multi-host fleet. This Skill encodes the full, battle-hardened release runbook so every daily cut ships a verified Linux artifact without discarding evidence or blocking sibling hosts. ## Core Features & Use Cases - Gated PR promotion: Refreshes linux-next, opens or reuses the linux-next → main PR, runs the local build gate and release preflight, then merges only when green. - Epoch-anchored CalVer versioning: Computes and bumps versions via scripts/bump-version.sh through a branch-protected PR, never by hand-derivation or direct push. - Ordered tag, back-merge, and dispatch: Creates the annotated tag, back-merges main into the source branch to satisfy the version-monotonicity guard, then triggers the workflow_dispatch release and surfaces artifact URLs. - Use Case: An operator on a Fedora Silverblue host wants a fresh downloadable Linux build each morning; the Skill promotes yesterday's linux-next work, cuts v56.9.12.1, and returns the musl binary download URL for smoke-testing. ## Quick Start Run the merge-to-main-and-release skill to promote today's linux-next work to main, cut the next daily release tag, and give me the Linux artifact download link.