Snap Ship

Shipping manifest from diff truth.

Workflow

1. Detect: Check whether PR already exists for the branch.
2. Analyze: Read diff, commits, stats, base branch, push state. Extract issue/PR refs from commits, branch name, existing PR body, and diff-adjacent docs when present. For any Closes target or scope claim, fetch linked issue body + comments and material parent PRD/epic/breakdown links. Recurse through material scope/acceptance/blocker links; normalize + dedupe canonical refs. Diff remains truth; linked context only bounds title/body/closure claims.
3. Template: Use repo PR template when present; otherwise use local refs.
4. Write: Generate concise, specific PR body from actual behavior and touched systems. Apply repo artifact style: terse, technical-dense, label-first.

Contract

Artifact = PR title + PR body shaped by references/contract.md and references/template.md.

Required sections:

• ## Summary
• ## Changes
• ## Test Plan