diff --git a/README.md b/README.md
index e5e4318..30e4a49 100644
--- a/README.md
+++ b/README.md
@@ -408,6 +408,11 @@ gitlink-cli pr +create --owner Gitlink --repo forgeplus -t "feat: Search feature
 # Create a PR (from a fork)
 gitlink-cli pr +create --owner Gitlink --repo forgeplus -t "feat: New feature" --head your_username/forgeplus:feature/my-feature --base master
 
+# List PR branch candidates and check merge readiness
+gitlink-cli pr +branches --owner Gitlink --repo forgeplus
+gitlink-cli pr +check-can-merge --owner Gitlink --repo forgeplus --head feature/search --base master --dry-run
+gitlink-cli pr +check-can-merge --owner Gitlink --repo forgeplus --head feature/search --base master --yes
+
 # View a PR
 gitlink-cli pr +view --owner Gitlink --repo forgeplus -i 42
 
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 6a8879d..8bc7c67 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -418,6 +418,11 @@ gitlink-cli pr +create --owner Gitlink --repo forgeplus -t "feat: 搜索功能"
 # 创建 PR（从 Fork 仓库）
 gitlink-cli pr +create --owner Gitlink --repo forgeplus -t "feat: 新功能" --head your_username/forgeplus:feature/my-feature --base master
 
+# 列出 PR 可用分支并检查合并准备状态
+gitlink-cli pr +branches --owner Gitlink --repo forgeplus
+gitlink-cli pr +check-can-merge --owner Gitlink --repo forgeplus --head feature/search --base master --dry-run
+gitlink-cli pr +check-can-merge --owner Gitlink --repo forgeplus --head feature/search --base master --yes
+
 # 查看 PR
 gitlink-cli pr +view --owner Gitlink --repo forgeplus -i 42
 
diff --git a/doc/changes/pr-readiness-shortcuts.md b/doc/changes/pr-readiness-shortcuts.md
new file mode 100644
index 0000000..59abcd8
--- /dev/null
+++ b/doc/changes/pr-readiness-shortcuts.md
@@ -0,0 +1,65 @@
+# PR readiness shortcuts
+
+## Background
+
+Pull request workflows already support list, create, view, merge, review,
+comments, changed files, and patchset/version inspection. Two helper endpoints
+were still documented as Raw API calls:
+
+- `GET /:owner/:repo/pulls/get_branches`
+- `POST /:owner/:repo/pulls/check_can_merge`
+
+This change adds first-class shortcuts for those PR preparation workflows.
+
+## New shortcuts
+
+- `pr +branches` lists PR source/target branch candidates.
+- `pr +check-can-merge` checks whether a source branch can merge into a target
+  branch.
+
+## Safety model
+
+`pr +branches` is read-only and can run directly:
+
+```bash
+gitlink-cli pr +branches --owner Gitlink --repo forgeplus
+```
+
+`pr +check-can-merge` uses a remote POST endpoint, so it supports dry-run and
+requires explicit confirmation for real execution:
+
+```bash
+gitlink-cli pr +check-can-merge --owner Gitlink --repo forgeplus \
+  --head feature/search --base master --dry-run
+gitlink-cli pr +check-can-merge --owner Gitlink --repo forgeplus \
+  --head feature/search --base master --yes
+```
+
+## Documentation updates
+
+- README and README.zh-CN include branch helper and merge readiness examples.
+- `skills/gitlink-pr` now prefers `pr +branches` and `pr +check-can-merge`
+  over Raw API calls.
+- `skills/gitlink-gatekeeper` includes merge readiness as a PR preflight signal.
+
+## Tests
+
+Unit tests cover:
+
+- endpoint method/path mapping for `pr +branches`;
+- `pr +check-can-merge` dry-run behavior;
+- `--yes` confirmation guard;
+- request payload and default `--base master`;
+- HTTP error propagation for both shortcuts.
+
+Suggested verification:
+
+```bash
+go test ./shortcuts/pr ./shortcuts
+```
+
+Full project verification:
+
+```bash
+go test ./...
+```
diff --git a/internal/i18n/locales/en-US.json b/internal/i18n/locales/en-US.json
index 0739395..6239005 100644
--- a/internal/i18n/locales/en-US.json
+++ b/internal/i18n/locales/en-US.json
@@ -52,6 +52,8 @@
   "cmd.org.list.short": "List organizations",
   "cmd.org.members.short": "List organization members",
   "cmd.org.short": "Organization operations",
+  "cmd.pr.branches.short": "List pull request source and target branches",
+  "cmd.pr.check_can_merge.short": "Check whether pull request branches can merge",
   "cmd.pr.close.short": "Close a pull request",
   "cmd.pr.comment.short": "Add a comment to a pull request",
   "cmd.pr.create.short": "Create a pull request",
@@ -181,6 +183,7 @@
   "flag.pr.assignee_id": "Assignee user ID",
   "flag.pr.base": "Target branch",
   "flag.pr.body": "PR description",
+  "flag.pr.check_yes": "Confirm the remote merge readiness check",
   "flag.pr.file": "Filter diff by file path",
   "flag.pr.head": "Source branch",
   "flag.pr.id": "PR number",
diff --git a/internal/i18n/locales/zh-CN.json b/internal/i18n/locales/zh-CN.json
index 2e6fc4d..984623c 100644
--- a/internal/i18n/locales/zh-CN.json
+++ b/internal/i18n/locales/zh-CN.json
@@ -52,6 +52,8 @@
   "cmd.org.list.short": "列出组织",
   "cmd.org.members.short": "列出组织成员",
   "cmd.org.short": "组织操作",
+  "cmd.pr.branches.short": "列出拉取请求可用源分支和目标分支",
+  "cmd.pr.check_can_merge.short": "检查拉取请求分支是否可合并",
   "cmd.pr.close.short": "关闭拉取请求",
   "cmd.pr.comment.short": "给拉取请求添加评论",
   "cmd.pr.create.short": "创建拉取请求",
@@ -181,6 +183,7 @@
   "flag.pr.assignee_id": "指派人用户 ID",
   "flag.pr.base": "目标分支",
   "flag.pr.body": "PR 描述",
+  "flag.pr.check_yes": "确认执行远端可合并检查",
   "flag.pr.file": "按文件路径筛选 diff",
   "flag.pr.head": "源分支",
   "flag.pr.id": "PR 编号",
diff --git a/shortcuts/pr/pr.go b/shortcuts/pr/pr.go
index 03f537f..49f364b 100644
--- a/shortcuts/pr/pr.go
+++ b/shortcuts/pr/pr.go
@@ -123,6 +123,31 @@ func Shortcuts(translators ...*i18n.Translator) []*common.Shortcut {
 				return ctx.Output(env)
 			},
 		},
+		{
+			Name:        "branches",
+			Description: tr.T("cmd.pr.branches.short"),
+			Run: func(ctx *common.RuntimeContext) error {
+				if err := ctx.ResolveOwnerRepo(); err != nil {
+					return err
+				}
+				env, err := ctx.CallAPI("GET", ctx.RepoPath()+"/pulls/get_branches", nil)
+				if err != nil {
+					return err
+				}
+				return ctx.Output(env)
+			},
+		},
+		{
+			Name:        "check-can-merge",
+			Description: tr.T("cmd.pr.check_can_merge.short"),
+			Flags: []common.Flag{
+				{Name: "head", Usage: tr.T("flag.pr.head"), Required: true},
+				{Name: "base", Usage: tr.T("flag.pr.base"), Default: "master"},
+				{Name: "dry-run", Usage: tr.T("flag.dry_run"), Bool: true, Default: "false"},
+				{Name: "yes", Usage: tr.T("flag.pr.check_yes"), Bool: true, Default: "false"},
+			},
+			Run: runCheckCanMerge,
+		},
 		{
 			Name:        "view",
 			Description: tr.T("cmd.pr.view.short"),
@@ -434,6 +459,43 @@ func Shortcuts(translators ...*i18n.Translator) []*common.Shortcut {
 	}
 }
 
+func runCheckCanMerge(ctx *common.RuntimeContext) error {
+	if err := ctx.ResolveOwnerRepo(); err != nil {
+		return err
+	}
+	head, err := ctx.RequireArg("head")
+	if err != nil {
+		return err
+	}
+	base := ctx.Arg("base")
+	if base == "" {
+		base = "master"
+	}
+	payload := map[string]interface{}{
+		"head": head,
+		"base": base,
+	}
+	path := ctx.RepoPath() + "/pulls/check_can_merge"
+	if ctx.Arg("dry-run") == "true" {
+		return ctx.OutputData(map[string]interface{}{
+			"repository": fmt.Sprintf("%s/%s", ctx.Owner, ctx.Repo),
+			"dry_run":    true,
+			"action":     "check_can_merge",
+			"method":     "POST",
+			"path":       path,
+			"payload":    payload,
+		})
+	}
+	if ctx.Arg("yes") != "true" {
+		return fmt.Errorf("check-can-merge calls a remote POST endpoint; run with --dry-run first, then pass --yes to execute")
+	}
+	env, err := ctx.CallAPI("POST", path, payload)
+	if err != nil {
+		return err
+	}
+	return ctx.Output(env)
+}
+
 func shortcutTranslator(translators ...*i18n.Translator) *i18n.Translator {
 	if len(translators) > 0 && translators[0] != nil {
 		return translators[0]
diff --git a/shortcuts/pr/pr_test.go b/shortcuts/pr/pr_test.go
index eece6d9..12b2a5c 100644
--- a/shortcuts/pr/pr_test.go
+++ b/shortcuts/pr/pr_test.go
@@ -226,6 +226,103 @@ func TestPRCreateNoBody(t *testing.T) {
 	}
 }
 
+// --- branches / check-can-merge ---
+
+func TestPRBranches(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != "GET" {
+			t.Fatalf("expected GET, got %s", r.Method)
+		}
+		if r.URL.Path != "/owner/repo/pulls/get_branches.json" {
+			t.Fatalf("unexpected path: %s", r.URL.Path)
+		}
+		writeJSON(t, w, map[string]interface{}{
+			"branches": []interface{}{"master", "feature/search"},
+		})
+	}))
+	defer server.Close()
+
+	err := runPRShortcut(t, server, "branches", nil)
+	if err != nil {
+		t.Fatalf("branches failed: %v", err)
+	}
+}
+
+func TestPRCheckCanMergeDryRunDoesNotCallAPI(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		t.Fatalf("check-can-merge dry-run should not call API, got: %s %s", r.Method, r.URL.Path)
+	}))
+	defer server.Close()
+
+	err := runPRShortcut(t, server, "check-can-merge", map[string]string{
+		"head":    "feature/search",
+		"base":    "master",
+		"dry-run": "true",
+	})
+	if err != nil {
+		t.Fatalf("check-can-merge dry-run failed: %v", err)
+	}
+}
+
+func TestPRCheckCanMergeRequiresYes(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		t.Fatalf("check-can-merge without --yes should not call API, got: %s %s", r.Method, r.URL.Path)
+	}))
+	defer server.Close()
+
+	err := runPRShortcut(t, server, "check-can-merge", map[string]string{
+		"head": "feature/search",
+		"base": "master",
+	})
+	if err == nil {
+		t.Fatal("expected check-can-merge to require --yes")
+	}
+}
+
+func TestPRCheckCanMergeWithYesCallsEndpoint(t *testing.T) {
+	var payload map[string]interface{}
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != "POST" {
+			t.Fatalf("expected POST, got %s", r.Method)
+		}
+		if r.URL.Path != "/owner/repo/pulls/check_can_merge.json" {
+			t.Fatalf("unexpected path: %s", r.URL.Path)
+		}
+		payload = decodeJSON(t, r)
+		writeJSON(t, w, map[string]interface{}{"can_merge": true})
+	}))
+	defer server.Close()
+
+	err := runPRShortcut(t, server, "check-can-merge", map[string]string{
+		"head": "feature/search",
+		"base": "master",
+		"yes":  "true",
+	})
+	if err != nil {
+		t.Fatalf("check-can-merge failed: %v", err)
+	}
+	assertEqual(t, payload["head"], "feature/search")
+	assertEqual(t, payload["base"], "master")
+}
+
+func TestPRCheckCanMergeDefaultsBaseToMaster(t *testing.T) {
+	var payload map[string]interface{}
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		payload = decodeJSON(t, r)
+		writeJSON(t, w, map[string]interface{}{"can_merge": true})
+	}))
+	defer server.Close()
+
+	err := runPRShortcut(t, server, "check-can-merge", map[string]string{
+		"head": "feature/search",
+		"yes":  "true",
+	})
+	if err != nil {
+		t.Fatalf("check-can-merge failed: %v", err)
+	}
+	assertEqual(t, payload["base"], "master")
+}
+
 // --- view ---
 
 func TestPRView(t *testing.T) {
@@ -416,6 +513,36 @@ func TestPRCreateHTTPError(t *testing.T) {
 	}
 }
 
+func TestPRBranchesHTTPError(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte("server error"))
+	}))
+	defer server.Close()
+
+	err := runPRShortcut(t, server, "branches", nil)
+	if err == nil {
+		t.Fatal("expected error for HTTP 500")
+	}
+}
+
+func TestPRCheckCanMergeHTTPError(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte("server error"))
+	}))
+	defer server.Close()
+
+	err := runPRShortcut(t, server, "check-can-merge", map[string]string{
+		"head": "feature/search",
+		"base": "master",
+		"yes":  "true",
+	})
+	if err == nil {
+		t.Fatal("expected error for HTTP 500")
+	}
+}
+
 func TestPRViewHTTPError(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusInternalServerError)
diff --git a/skills/gitlink-gatekeeper/SKILL.md b/skills/gitlink-gatekeeper/SKILL.md
index ce31ddb..9c54c41 100644
--- a/skills/gitlink-gatekeeper/SKILL.md
+++ b/skills/gitlink-gatekeeper/SKILL.md
@@ -37,7 +37,7 @@ gitlink-gatekeeper 是一个**可复现的 PR 合并门禁**：团队把合并
 | 阶段 | 操作 | AI Agent 角色 |
 |------|------|--------------|
 | ① 加载策略 | 读 `gatekeeper.yaml`，找不到则回退内置默认策略 | 解析 / 校验 / 回退 |
-| ② 采集上下文 | 拉 PR 元信息、变更文件、diff、commits、CI 状态 | 执行 CLI 命令采集数据 |
+| ② 采集上下文 | 拉 PR 元信息、分支可合并性、变更文件、diff、commits、CI 状态 | 执行 CLI 命令采集数据 |
 | ③ 产出发现 | 逐文件审查，按 severity 分级标记问题 | AI 分析，输出发现列表 |
 | ④ 逐维评分 | 五维各算 `0..weight` 得分，相加得 `total` | 确定性计算（非主观） |
 | ⑤ 硬门禁 | 逐项判定 `hard_gates`，命中即拦截 | 布尔判定 |
@@ -97,6 +97,7 @@ behavior:
 | 步骤 | 数据 | 命令 |
 |------|------|------|
 | PR 元信息 | 标题/描述/作者/关联 issue | `gitlink-cli pr +view -i <id> --format json` |
+| 合并准备状态 | 源/目标分支是否可合并 | `gitlink-cli pr +check-can-merge --head <head> --base <base> --dry-run`，确认后 `--yes` |
 | 变更文件 | 文件路径列表 | `gitlink-cli pr +files -i <id> --format json` |
 | Diff | 变更内容供 AI 审查 | `gitlink-cli pr +diff -i <id> --format json` |
 | commits | commit 列表（消息供 commit_quality） | `gitlink-cli api GET /:owner/:repo/pulls/:id/commits --format json` |
@@ -107,6 +108,7 @@ behavior:
 ```bash
 PR=42
 gitlink-cli pr +view  -i "$PR" --format json   # title / body / 关联 issue
+gitlink-cli pr +check-can-merge --head feature/pr --base master --dry-run
 gitlink-cli pr +files -i "$PR" --format json   # changed files
 gitlink-cli pr +diff  -i "$PR" --format json   # diff（供 AI 审查）
 gitlink-cli api GET /:owner/:repo/pulls/$PR/commits --format json
@@ -293,6 +295,7 @@ gitlink-cli api POST /:owner/:repo/issues/$ISSUE_ID --body '{
 # 在目标仓库目录下，对 PR #42 跑门禁，仅预览评分卡
 PR=42
 gitlink-cli pr +view  -i "$PR" --format json
+gitlink-cli pr +check-can-merge --head feature/pr --base master --dry-run
 gitlink-cli pr +files -i "$PR" --format json
 gitlink-cli pr +diff  -i "$PR" --format json
 gitlink-cli api GET /:owner/:repo/pulls/$PR/commits --format json
diff --git a/skills/gitlink-pr/SKILL.md b/skills/gitlink-pr/SKILL.md
index d00091d..57033a0 100644
--- a/skills/gitlink-pr/SKILL.md
+++ b/skills/gitlink-pr/SKILL.md
@@ -1,7 +1,7 @@
 ---
 name: gitlink-pr
-version: 1.0.0
-description: "Pull Request 管理：创建、查看、合并、关闭 PR，查看变更文件、Diff 和 patchset/version。当用户需要操作 GitLink PR 时触发。"
+version: 2.0.0
+description: "Pull Request 管理：创建、查看、合并、关闭 PR，查看变更文件、Diff、patchset/version、可用分支和合并准备状态。当用户需要操作 GitLink PR 时触发。"
 metadata:
   requires:
     bins: ["gitlink-cli"]
@@ -21,6 +21,8 @@ metadata:
 |----------|------|----------|
 | `pr +list` | PR 列表 | 否（公开项目） |
 | `pr +create` | 创建 PR | 是 |
+| `pr +branches` | 获取 PR 可用源分支和目标分支 | 否 |
+| `pr +check-can-merge` | 检查源/目标分支是否可合并，先 dry-run | 是 |
 | `pr +view` | PR 详情 | 否（公开项目） |
 | `pr +merge` | 合并 PR | 是 |
 | `pr +refuse` | 拒绝并关闭 PR | 是 |
@@ -45,6 +47,13 @@ gitlink-cli pr +list --owner Gitlink --repo forgeplus --state merged --keyword r
 # 创建 PR（源分支必须有实际代码变更）
 gitlink-cli pr +create --title "feat: 新增搜索功能" --head feature/search --base master --body "实现了全文搜索"
 
+# 获取可用分支
+gitlink-cli pr +branches --owner Gitlink --repo forgeplus
+
+# 检查源分支是否可合并到目标分支，先 dry-run 再执行
+gitlink-cli pr +check-can-merge --owner Gitlink --repo forgeplus --head feature/search --base master --dry-run
+gitlink-cli pr +check-can-merge --owner Gitlink --repo forgeplus --head feature/search --base master --yes
+
 # 查看 PR 详情（使用 pull_request_number，即网页 URL 中的序号）
 gitlink-cli pr +view --id 3
 
@@ -138,9 +147,6 @@ gitlink-cli api GET /:owner/:repo/sub_entries --query 'filepath=file.md&ref=dev'
 # 从 entries.sha 获取 SHA，然后：
 gitlink-cli api PUT /:owner/:repo/update_file --body '{"filepath":"file.md","content":"<base64>","sha":"<sha>","branch":"dev","message":"update file"}'
 
-# 检查是否可合并
-gitlink-cli api POST /:owner/:repo/pulls/check_can_merge --body '{"head":"dev","base":"main"}'
-
 # 创建 Review
 gitlink-cli api POST /v1/:owner/:repo/pulls/:id/reviews --body '{"content":"LGTM","status":"approved"}'
 
@@ -148,9 +154,6 @@ gitlink-cli api POST /v1/:owner/:repo/pulls/:id/reviews --body '{"content":"LGTM
 gitlink-cli api GET /v1/:owner/:repo/pulls/:id/reviews
 gitlink-cli api GET /v1/:owner/:repo/pulls/:id/reviews?status=approved
 
-# 获取可用分支
-gitlink-cli api GET /:owner/:repo/pulls/get_branches
-
 # 查看 PR patchset/version 列表（v1 API）
 gitlink-cli api GET /v1/:owner/:repo/pulls/:id/versions
 
@@ -162,6 +165,8 @@ gitlink-cli api GET /v1/:owner/:repo/pulls/:id/versions/:version_id/diff
 
 - ⛔ **GitLink 的 PR 操作必须用 `gitlink-cli pr`，不能用 `gh pr`。** `gh` 是 GitHub CLI，无法操作 GitLink 平台。详见 [`../gitlink-shared/SKILL.md`](../gitlink-shared/SKILL.md) 的「工具使用边界」章节。
 - GitLink 的默认分支通常是 `master`（非 `main`），创建 PR 时注意 `--base` 参数
+- 创建或检查 PR 前可用 `pr +branches` 获取可选源/目标分支
+- `pr +check-can-merge` 使用远端 POST 检查接口，Agent 应先执行 `--dry-run`，确认后再加 `--yes`
 - 合并 PR 前建议先用 `pr +view` 确认状态
 - **PR 创建要求源分支与目标分支有实际代码差异**，否则返回"分支内容相同，无需创建合并请求"
 - PR 查看/合并/关闭/重开需要使用 `pull_request_number`（即网页 URL `/pulls/N` 中的序号，从 `pr +list` 返回）