Spec Sync Routing
This is routing guidance, not a replacement for a project's Spec Sync contract.
Install
Use the repository's Fledge integration where it covers the operation; use the
independent specsync binary for the remaining lifecycle commands. See
spec-sync for release selection and the shipped 6.0 workflow. Refresh generated
host skills with the selected binary's documented generator, commonly
specsync agents install.
Find local truth first
When a repository uses Spec Sync, locate its generated local skill, configuration, and canonical specs before choosing commands or editing lifecycle files:
- Confirm the CLI:
specsync --version(binary name isspecsync, notspec-sync). - Find project config (often
.specsync/config.toml; also.specsync/config.jsonor.specsync.tomlin some repos) andspecs/. - Read the existing generated host skill before refreshing it. Host paths may include:
.codex/skills/spec-sync.claude/skills/spec-sync.cursor/skills/spec-sync.gemini/skills/spec-sync
- Use the shared catalog
spec-syncskill for principles only.
The local generated skill and configuration are authoritative for that repository's command syntax, paths, policy, and validation. Check that they match the selected binary and supported workflow; stale generated guidance is a reason to inspect the documented migration path, not to prefer a legacy release. Never overwrite an existing change ledger to force a newer workflow.
If the repository can generate or refresh its local Spec Sync skill, do that after
installing this non-colliding routing entry. Do not install the shared spec-sync catalog
entry over a generated local skill path. Do not overwrite or silently replace generated
local material with shared text.
Route workflow questions
For change lifecycle, approval boundaries, evidence, finalization, and archive behavior,
read the shared spec-sync skill first and then follow the generated repository-local
skill and configuration. They define the workflow; this skill only tells you where to
find it.
For code↔spec graph inspection, see atlas. For deterministic change risk, see augur.