> ## Documentation Index > Fetch the complete documentation index at: https://theagenticguy.github.io/opencodehub/llms.txt > Use this file to discover all available pages before exploring further. > Scoped bundles: [user-guide](https://theagenticguy.github.io/opencodehub/_llms-txt/user-guide.txt) · [mcp](https://theagenticguy.github.io/opencodehub/_llms-txt/mcp.txt) · [contributing](https://theagenticguy.github.io/opencodehub/_llms-txt/contributing.txt) # codehub-pr-description Linear skill. No subagents. Sonnet. Writes a Markdown PR body you can paste into `gh pr create --body-file` (or let the Claude Code session drive the GitHub CLI directly). ## Frontmatter ```yaml name: codehub-pr-description argument-hint: "[--base ] [--head ] [--out ]" color: teal model: sonnet ``` ## Preconditions - `git diff --name-only ..` must return ≥ 1 path. **Refuses on a clean tree** with `No diff detected — resolve base/head or stage changes.` ## Process 1. Resolve `--base` (default `main`) and `--head` (default `HEAD`). 2. `mcp__opencodehub__detect_changes({base, head})` → affected symbols + processes. 3. `mcp__opencodehub__verdict({base, head})` → 5-tier merge recommendation. 4. `mcp__opencodehub__owners({paths})` → required reviewers per path. 5. `mcp__opencodehub__list_findings_delta({base, head})` → new / resolved scanner findings. 6. For verdict tier ≥ 3: `mcp__opencodehub__impact({symbol, direction: "downstream", depth: 2})` — spell out who breaks. 7. For public API changes: `mcp__opencodehub__api_impact({route})` when the diff touches a handler. 8. Assemble the Markdown body and write to `` (default `.codehub/pr/PR-.md`). ## Output shape ```markdown # ## Summary 2–3 sentences — what changes, why. ## Verdict **Tier —