gsd-loop-build

name	gsd-loop-build
description	Build the oldest safe gsd:ready GitHub issue or repair one gsd:rework PR. Use when asked to run the gsd-loop builder, work the ready queue, or fix rework. Each invocation completes exactly one pass, then stops.

Resolve the repository root with git rev-parse --show-toplevel. Use its loop/build.md only when the root identifies itself as the gsd-loop source: README.md starts with # gsd-loop, all four files under loop/ exist, and scripts/doctor.sh plus scripts/scheduler-policy.sh exist. Otherwise, read playbook.md beside this SKILL.md; global installs bundle that canonical fallback.

Before executing, resolve LINKAGE_SYNC to scripts/ensure-linkage.mjs beside this SKILL.md. Pass that absolute path wherever the playbook says LINKAGE_SYNC; installed skills bundle its runtime, so a global gsd-loop command is not required. Execute exactly one pass.