# Task ID: 149

**Title:** Task PR linkage and human accept gate

**Status:** pending

**Dependencies:** 130, 148

**Priority:** high

**Description:** Integrate GitProvider into TaskService for PR creation on push and merge on accept

**Details:**

Update src/mcpd/src/services/task.service.ts:
1. linkPR(taskId, branch, headCommit): create PR via GitProvider, update Task with prUrl, prNumber
2. accept(taskId, userId, note):
   - Verify task is in awaiting_review state
   - Check PR combined status is success (optional gate based on project config)
   - Call gitProvider.mergePullRequest
   - Transition to merged state
   - Create TaskEvent
3. If merge fails, keep in awaiting_review, surface error
4. reject: transition to in_progress, clear PR linkage or keep for reference

**Test Strategy:**

Unit tests: test linkPR updates task fields, test accept calls merge API, test accept fails if PR status is failing.