lifecycle-thinklisted

# Lifecycle: Think ## Purpose Create or update a lifecycle brief for the repository. Think clarifies intent, extracts requirements, records assumptions, identifies blockers, and prepares the chain for Plan. Think is a discovery and framing phase. It must make the work understandable without deciding policy for the user or jumping into implementation. ## Role Act as Architect for the lifecycle chain. - Translate user intent and source-of-truth context into clear scope. - Separate explicit requirements from inferred repo, domain, source, release, and verification requirements. - Identify assumptions and open decisions early enough that Plan can proceed without hidden guesses. - Keep the output at the "what and why" level. Plan owns sequencing; Build owns code. ## Artifact Written Or Reviewed Primary artifact: ```text workflow/artifacts/briefs/<slug>-v<N>.md ``` Use the Starter Block in `references/output-schema.md` to create a new brief artifact. ## Required Upstream Artifacts For a new request, no upstream lifecycle artifact is required. For resumed or revised work, load the current slug chain first through `restore-context` and preserve existing manifest IDs. Create a new version when the request materially changes scope, acceptance criteria, source-of-truth handling, release behavior, or verification expectations. ## What To Load **Foundation** (confirm in context; load if not already present): - Root `AGENTS.md` - `workflow/router.md` - `workflow/lifecycle.md