diff --git a/tests/test_bootstrap.py b/tests/test_bootstrap.py
new file mode 100644
index 0000000..1a3358e
--- /dev/null
+++ b/tests/test_bootstrap.py
@@ -0,0 +1,212 @@
+"""F11 Bootstrap 拼装单元测试
+
+按 test-plan-v2.6.md §F11：
+- T1: 各 role 拼装（P0）
+- T2: token 估算（P0）
+- T3: 缺失组件降级（P1）
+- T4: 模板变量替换（P1）
+"""
+
+import pytest
+from pathlib import Path
+
+from src.blackboard.models import Task
+from src.daemon.bootstrap import BootstrapBuilder, estimate_tokens
+
+
+@pytest.fixture
+def builder():
+    return BootstrapBuilder(max_tokens=4096)
+
+
+@pytest.fixture
+def builder_with_templates(tmp_path):
+    template_dir = tmp_path / "templates"
+    template_dir.mkdir()
+    (template_dir / "executor.md").write_text("# Executor Role\nYou execute tasks.")
+    (template_dir / "reviewer.md").write_text("# Reviewer Role\nYou review code.")
+    (template_dir / "planner.md").write_text("# Planner Role\nYou plan tasks.")
+    return BootstrapBuilder(template_dir=template_dir, max_tokens=4096)
+
+
+# ---------------------------------------------------------------------------
+# T1: 各 role 拼装
+# ---------------------------------------------------------------------------
+
+class TestRoleBootstrap:
+    def test_executor_bootstrap(self, builder):
+        b = builder.build(
+            role="executor",
+            task_context={"task_id": "t1", "title": "Write tests"},
+        )
+        assert "Write tests" in b
+        assert "t1" in b
+
+    def test_reviewer_bootstrap(self, builder):
+        b = builder.build(
+            role="reviewer",
+            task_context={"task_id": "t2", "title": "Review PR"},
+        )
+        assert "Review PR" in b
+
+    def test_planner_bootstrap(self, builder):
+        b = builder.build(
+            role="planner",
+            task_context={"task_id": "t3", "title": "Plan sprint"},
+        )
+        assert "Plan sprint" in b
+
+    def test_executor_with_guardrail(self, builder):
+        b = builder.build(
+            role="executor",
+            guardrail_rules="## Guardrail\nNo dangerous ops",
+        )
+        assert "Guardrail" in b
+
+    def test_reviewer_no_guardrail(self, builder):
+        b = builder.build(
+            role="reviewer",
+            guardrail_rules="## Guardrail\nNo dangerous ops",
+        )
+        assert "Guardrail" not in b  # reviewer 不注入 guardrail
+
+    def test_executor_with_review_protocol(self, builder):
+        b = builder.build(
+            role="executor",
+            review_protocols="## Review Protocol\nCheck tests",
+        )
+        assert "Review Protocol" in b
+
+    def test_reviewer_with_review_protocol(self, builder):
+        b = builder.build(
+            role="reviewer",
+            review_protocols="## Review Protocol\nCheck quality",
+        )
+        assert "Review Protocol" in b
+
+    def test_with_template(self, builder_with_templates):
+        b = builder_with_templates.build(role="executor")
+        assert "Executor Role" in b
+        assert "You execute tasks" in b
+
+
+# ---------------------------------------------------------------------------
+# T2: token 估算
+# ---------------------------------------------------------------------------
+
+class TestTokenEstimation:
+    def test_estimate_tokens_basic(self):
+        assert estimate_tokens("hello") > 0
+
+    def test_estimate_tokens_long_text(self):
+        text = "a" * 1000
+        tokens = estimate_tokens(text)
+        assert 200 < tokens < 400  # ~333
+
+    def test_bootstrap_under_limit(self, builder):
+        b = builder.build(
+            role="executor",
+            task_context={"title": "Short task"},
+        )
+        assert estimate_tokens(b) <= 4096
+
+    def test_bootstrap_over_limit_truncates(self):
+        builder = BootstrapBuilder(max_tokens=10)
+        b = builder.build(
+            role="executor",
+            task_context={"title": "A" * 10000},
+        )
+        assert estimate_tokens(b) <= 15  # 接近限制
+        assert "truncated" in b
+
+
+# ---------------------------------------------------------------------------
+# T3: 缺失组件降级
+# ---------------------------------------------------------------------------
+
+class TestGracefulDegradation:
+    def test_no_task_context(self, builder):
+        b = builder.build(role="executor")
+        assert b  # 不为空
+
+    def test_no_project_context(self, builder):
+        b = builder.build(
+            role="executor",
+            task_context={"title": "Task"},
+        )
+        assert "Task" in b
+
+    def test_no_template(self, builder):
+        b = builder.build(role="executor")
+        assert b  # 没有 template 也不崩溃
+
+    def test_empty_experiences(self, builder):
+        b = builder.build(role="executor", experiences=[])
+        assert b
+
+    def test_template_dir_not_exists(self, tmp_path):
+        builder = BootstrapBuilder(template_dir=tmp_path / "nonexistent")
+        b = builder.build(role="executor")
+        assert b  # 不崩溃
+
+
+# ---------------------------------------------------------------------------
+# T4: 便捷方法 + 项目上下文
+# ---------------------------------------------------------------------------
+
+class TestBuildForTask:
+    def test_build_for_task_object(self, builder):
+        task = Task(
+            id="t1", title="Build Feature", status="pending",
+            assigned_by="daemon", task_type="coding",
+            description="Implement X with tests",
+            must_haves="Unit tests, Documentation",
+            risk_level="high",
+        )
+        b = builder.build_for_task(task, role="executor")
+        assert "Build Feature" in b
+        assert "Implement X" in b
+        assert "high" in b
+
+    def test_build_for_task_with_project(self, builder):
+        task = Task(id="t1", title="T", status="pending", assigned_by="d")
+        b = builder.build_for_task(
+            task, role="executor",
+            project_config={"name": "My Project", "agents": ["a1", "a2"]},
+        )
+        assert "My Project" in b
+        assert "a1" in b
+
+    def test_with_experiences(self, builder):
+        task = Task(id="t1", title="T", status="pending", assigned_by="d")
+        experiences = [
+            {"category": "pitfall", "summary": "Always test edge cases"},
+            {"category": "best_practice", "summary": "Use type hints"},
+        ]
+        b = builder.build_for_task(task, role="executor", experiences=experiences)
+        assert "pitfall" in b
+        assert "Always test edge cases" in b
+
+    def test_with_skills(self, builder):
+        skills = [
+            {"name": "code-review", "description": "Review code quality"},
+        ]
+        b = builder.build(
+            role="executor",
+            skill_descriptions=skills,
+        )
+        assert "code-review" in b
+        assert "Review code quality" in b
+
+    def test_with_depends_on_outputs(self, builder):
+        b = builder.build(
+            role="executor",
+            task_context={
+                "title": "T",
+                "depends_on_outputs": [
+                    {"task_id": "t0", "summary": "Data downloaded"},
+                ],
+            },
+        )
+        assert "前序产出" in b
+        assert "Data downloaded" in b