---
brief: 4
convoy: polish-dag-tiers-cost
role: role-implementer
title: Repo preflight check before clone
status: ready
priority: P2
slice_dependencies: []
recommended_model: qwen-coder
model_tier: local
---

# Brief 4 — `Task-repo-setup-preflight` (Epic 3)

## Goal

`POST /api/connected-repos/preflight` checks `git ls-remote` + worktree writability before clone, UI shows result — Autensa benchmark row `repo setup preflight`.

## Files

- `apps/web/server/routers/connected-repos.ts` — add `preflight` procedure `input:{url}` → `git ls-remote url` (timeout 5s) + `fs.access(WORKER_WORKTREE_BASE, W_OK)`, returns `{ok, reason}`. Reuse `forge adapters`.
- `apps/web/app/(app)/[workspaceSlug]/settings/repos/page.tsx` — call `preflight` on paste, show green/red before `create`.

## Acceptance

- Invalid URL `https://nope.invalid/repo.git` → `ok:false reason: ls-remote failed`; valid `https://github.com/octocat/Hello-World.git` → `ok:true`.
- `pnpm lint && pnpm type-check` pass.

## Prompt

You are `role-implementer` brief 4. Read `plans/Plan-automation-foundation/Epic-connected-repos/Task-repo-setup-preflight.md`, `apps/web/server/routers/connected-repos.ts`, `apps/worker/src/git/worktree.ts`. Keep timeout small, no creds leak.

## Depends

None.