diff --git a/MANIFEST.in b/MANIFEST.in
index fc35676..5624db9 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,7 +1,7 @@
 include LICENSE
 include README.md
 include pyproject.toml
-recursive-include src/iac_code *.yml *.yaml *.json *.md *.mo *.po
+recursive-include src/iac_code *.yml *.yaml *.json *.md *.rego *.mo *.po
 
 prune tests
 prune htmlcov
diff --git a/pyproject.toml b/pyproject.toml
index 1173f8b..9ec4e8e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -91,6 +91,7 @@ version = {attr = "iac_code.__version__"}
     "**/*.yaml",
     "**/*.json",
     "**/*.md",
+    "**/*.rego",
     "**/*.mo",
     "**/*.po",
 ]
diff --git a/src/iac_code/skills/auto_trigger.py b/src/iac_code/skills/auto_trigger.py
index ecbe981..feda2cb 100644
--- a/src/iac_code/skills/auto_trigger.py
+++ b/src/iac_code/skills/auto_trigger.py
@@ -45,13 +45,17 @@ def find_auto_triggered_skills(
         return []
 
     matches: list[PromptCommand] = []
+    suppressed_skill_names: set[str] = set()
     context_messages = context_messages or []
     for command in skills:
         skill = command.skill
-        if skill is None or command.name in loaded_skill_names:
+        if skill is None:
             continue
-        if context_has_skill_tag(context_messages, command.name):
+        is_loaded = command.name in loaded_skill_names
+        if not is_loaded and context_has_skill_tag(context_messages, command.name):
             loaded_skill_names.add(command.name)
+            is_loaded = True
+        if is_loaded and not skill.auto_trigger.get("supersedes"):
             continue
         script = skill.auto_trigger.get("script")
         if not script or command.source != SkillSource.BUNDLED or skill.source != SkillSource.BUNDLED:
@@ -63,10 +67,15 @@ def find_auto_triggered_skills(
         if not callable(should_trigger):
             continue
         try:
-            if should_trigger(prompt):
+            if not should_trigger(prompt):
+                continue
+            suppressed_skill_names.update(_split_supersedes(skill.auto_trigger.get("supersedes", "")))
+            if not is_loaded:
                 matches.append(command)
         except Exception as exc:
             logger.warning("Skill auto-trigger failed for {}: {}", command.name, exc)
+    if suppressed_skill_names:
+        return [command for command in matches if command.name not in suppressed_skill_names]
     return matches
 
 
@@ -113,3 +122,7 @@ def _load_trigger_module(skill_root: str, script: str, skill_name: str) -> Modul
         logger.warning("Failed to load skill auto-trigger script for {}: {}", skill_name, exc)
         return None
     return module
+
+
+def _split_supersedes(value: str) -> set[str]:
+    return {name for name in value.replace(",", " ").split() if name}
diff --git a/src/iac_code/skills/bundled/__init__.py b/src/iac_code/skills/bundled/__init__.py
index d17678a..d5814a2 100644
--- a/src/iac_code/skills/bundled/__init__.py
+++ b/src/iac_code/skills/bundled/__init__.py
@@ -85,6 +85,10 @@ def init_bundled_skills() -> None:
 
     register_iac_aliyun_skill()
 
+    from iac_code.skills.bundled.pac_aliyun import register_pac_aliyun_skill
+
+    register_pac_aliyun_skill()
+
 
 class _FunctionPromptProvider:
     """Prompt provider that delegates to an async function."""
diff --git a/src/iac_code/skills/bundled/iac_aliyun/SKILL.md b/src/iac_code/skills/bundled/iac_aliyun/SKILL.md
index 0d217dd..1a71e97 100644
--- a/src/iac_code/skills/bundled/iac_aliyun/SKILL.md
+++ b/src/iac_code/skills/bundled/iac_aliyun/SKILL.md
@@ -52,6 +52,10 @@ auto_trigger:
 ### 询价
 - 查询部署的预估价格
 
+### Policy as Code / InfraGuard
+- 用户要求“生成合规策略”“写 InfraGuard 规则”“用 Rego 检查模板”“策略校验”“策略库查询”等 PAC 工作时，改用 `pac-aliyun` skill。
+- 不在 `iac-aliyun` 内维护 InfraGuard 策略副本；`iac-aliyun` 只在 PAC 结果要求修改模板时负责 ROS/Terraform 模板改动。
+
 ## 参数化规则
 
 生成模板时，以下属性**必须**定义为 Parameters（部署前通过 API 查询确定实际值）：
diff --git a/src/iac_code/skills/bundled/iac_aliyun/auto_trigger.py b/src/iac_code/skills/bundled/iac_aliyun/auto_trigger.py
index a5cffba..6b96911 100644
--- a/src/iac_code/skills/bundled/iac_aliyun/auto_trigger.py
+++ b/src/iac_code/skills/bundled/iac_aliyun/auto_trigger.py
@@ -19,6 +19,16 @@
     r"alicloud\s+provider",
     r'provider\s+"alicloud"',
     r'resource\s+"alicloud_',
+    r"\becs\b",
+    r"\brds\b",
+    r"\boss\b",
+    r"\bvpc\b",
+    r"\bslb\b",
+    r"\balb\b",
+    r"\bnlb\b",
+    r"安全组",
+    r"负载均衡",
+    r"云资源",
 ]
 
 _ES_TEMPLATE_ACTIONS = r"genera|generar|crea|crear|despliega|desplegar|explica|explicar|valida|validar|mejora|mejorar"
diff --git a/src/iac_code/skills/bundled/pac_aliyun/SKILL.md b/src/iac_code/skills/bundled/pac_aliyun/SKILL.md
new file mode 100644
index 0000000..68564c4
--- /dev/null
+++ b/src/iac_code/skills/bundled/pac_aliyun/SKILL.md
@@ -0,0 +1,65 @@
+---
+name: pac-aliyun
+description: 阿里云 Alibaba Cloud Policy as Code / InfraGuard 合规策略生成、校验与策略库查询
+when_to_use: 当用户请求阿里云/Alibaba Cloud/Alicloud 的 Policy as Code、PAC、InfraGuard、Rego 合规策略生成、策略查询、策略更新或模板合规校验时，必须先调用 skill 工具加载 pac-aliyun。
+user_invocable: false
+auto_trigger:
+  script: auto_trigger.py
+  supersedes: iac-aliyun
+---
+
+# 阿里云 PAC 技能
+
+面向阿里云 ROS 模板的 Policy as Code 能力，使用 InfraGuard 进行策略查询、策略更新、模板扫描、合规策略生成与自定义 Rego 校验。
+
+## PAC 边界
+
+- 该技能拥有 InfraGuard、Rego、策略库、策略包、策略生成和模板合规扫描相关流程。
+- `iac-aliyun` 只负责 ROS/Terraform 模板生成、解释、参数推荐、询价、部署和资源栈操作。
+- 不在 iac-code 内维护 InfraGuard 官方策略副本；策略内容以 InfraGuard 官方工具和其策略更新机制为准。
+
+## InfraGuard 懒加载
+
+执行任何 PAC 后续能力前，先按 [references/infraguard-policy-generation.md](references/infraguard-policy-generation.md) 的 Lazy InfraGuard Sync 流程检查 InfraGuard 是否可用，并检查策略更新。
+
+核心命令：
+```bash
+infraguard version
+go install github.com/aliyun/infraguard/cmd/infraguard@latest
+infraguard policy update
+infraguard policy list
+```
+
+若用户只是咨询概念，可先简短回答；一旦需要生成、查询、校验或扫描策略，必须先完成懒加载检查。
+
+## 常见流程
+
+### 查询已有策略
+
+1. 完成 Lazy InfraGuard Sync。
+2. 使用 `infraguard policy list` 查看官方可用策略。
+3. 必要时使用 `infraguard policy get <policy-id>` 查看规则详情。
+4. 将策略 ID 以 `rule:aliyun:<name>` 或 `pack:aliyun:<name>` 的形式用于扫描。
+
+### 扫描 ROS 模板
+
+1. 完成 Lazy InfraGuard Sync。
+2. 确认模板文件是 ROS YAML/JSON。
+3. 使用 `infraguard scan <template.yaml> -p <policy>` 扫描；需要机器可读结果时加 `--format json`。
+4. 对违规结果给出资源名、属性路径、风险原因和修复建议。
+
+### 生成或调整自定义策略
+
+1. 完成 Lazy InfraGuard Sync。
+2. 优先查询官方策略是否已经覆盖需求。
+3. 只有官方策略无法满足时才生成自定义 Rego，并保持规则聚焦在 ROS 模板可静态证明的信息上。
+4. 写入用户指定文件或临时工作文件后，使用 `infraguard policy validate <policy.rego>` 校验。
+5. 若用户提供模板样例，使用该策略扫描样例模板，确认命中和不命中场景。
+
+## 策略设计原则
+
+- 只检查 ROS 模板中可静态读取的资源、属性、引用关系和条件。
+- 不把运行时指标、账单历史、审批记录、人工例外或账号侧状态写进 Rego。
+- 优先复用官方策略、官方策略包和 InfraGuard 的策略更新结果。
+- 自定义策略要有稳定 ID、清晰元数据、可定位的违规路径和可执行修复建议。
+- 生成策略时同步给出最小违规模板和最小合规模板，便于用户验证。
diff --git a/src/iac_code/skills/bundled/pac_aliyun/__init__.py b/src/iac_code/skills/bundled/pac_aliyun/__init__.py
new file mode 100644
index 0000000..12af2ee
--- /dev/null
+++ b/src/iac_code/skills/bundled/pac_aliyun/__init__.py
@@ -0,0 +1,20 @@
+from pathlib import Path
+
+from iac_code.skills.bundled import register_bundled_skill
+
+SKILL_DIR = Path(__file__).parent
+
+
+def register_pac_aliyun_skill() -> None:
+    register_bundled_skill(
+        name="pac-aliyun",
+        description="阿里云 Alibaba Cloud Policy as Code / InfraGuard 合规策略生成、校验与策略库查询",
+        prompt=(SKILL_DIR / "SKILL.md").read_text(encoding="utf-8"),
+        when_to_use=(
+            "当用户请求阿里云/Alibaba Cloud/Alicloud 的 Policy as Code、PAC、InfraGuard、Rego "
+            "合规策略生成、策略查询、策略更新或模板合规校验时，必须先调用 skill 工具加载 pac-aliyun。"
+        ),
+        user_invocable=False,
+        skill_root=str(SKILL_DIR),
+        auto_trigger={"script": "auto_trigger.py", "supersedes": "iac-aliyun"},
+    )
diff --git a/src/iac_code/skills/bundled/pac_aliyun/auto_trigger.py b/src/iac_code/skills/bundled/pac_aliyun/auto_trigger.py
new file mode 100644
index 0000000..cfe2fdc
--- /dev/null
+++ b/src/iac_code/skills/bundled/pac_aliyun/auto_trigger.py
@@ -0,0 +1,87 @@
+"""Auto-trigger rules for the bundled pac-aliyun skill."""
+
+from __future__ import annotations
+
+import re
+
+ENABLE_AUTO_TRIGGER = True
+
+_ALIYUN_SCOPE_PATTERNS = [
+    r"阿里云",
+    r"\baliyun\b",
+    r"\balicloud\b",
+    r"\balibaba\s+cloud\b",
+    r"\bros\b",
+    r"rostemplateformatversion",
+    r"aliyun::",
+    r"\becs\b",
+    r"\brds\b",
+    r"\boss\b",
+    r"\bvpc\b",
+    r"\bslb\b",
+    r"\balb\b",
+    r"\bnlb\b",
+    r"安全组",
+    r"云资源",
+]
+
+_PAC_SCOPE_PATTERNS = [
+    r"\binfraguard\b",
+    r"\brego\b",
+    r"\bpolicy\s+as\s+code\b",
+    r"\bpac\b",
+    r"\bpack:aliyun:",
+    r"\brule:aliyun:",
+    r"合规策略",
+    r"策略库",
+    r"策略包",
+]
+
+_POLICY_WORKFLOW_PATTERNS = [
+    r"\binfraguard\b",
+    r"\brego\b",
+    r"\bpolicy\s+as\s+code\b",
+    r"\bpac\b",
+    r"\bpack:aliyun:",
+    r"\brule:aliyun:",
+    r"\binfraguard\s+(scan|policy)\b",
+    r"\bpolicy\s+(list|get|update|validate)\b",
+    r"\b(scan|validate|check)\b.*\bcompliance\s+polic(y|ies)\b",
+    r"\b(generat|writ|creat)e?\b.*\bcompliance\s+polic(y|ies)\b",
+    r"\bcompliance\s+polic(y|ies)\b.*\b(generat|writ|creat|validat|check)e?\b",
+    r"合规策略",
+    r"策略生成",
+    r"生成.*策略",
+    r"编写.*策略",
+    r"写.*策略",
+    r"校验.*策略",
+    r"验证.*策略",
+    r"检查.*策略",
+    r"策略.*校验",
+    r"策略.*验证",
+    r"策略.*检查",
+    r"高可用.*策略",
+    r"成本优化.*策略",
+    r"合规性.*策略",
+    r"最佳实践.*策略",
+    r"可运维.*策略",
+    r"网络架构.*策略",
+    r"弹性.*策略",
+]
+
+
+def should_trigger(prompt: str) -> bool:
+    text = prompt.casefold()
+    return has_policy_workflow(text) and (has_pac_scope(text) or has_aliyun_scope(text))
+
+
+def has_aliyun_scope(text: str) -> bool:
+    return any(re.search(pattern, text, re.IGNORECASE) for pattern in _ALIYUN_SCOPE_PATTERNS)
+
+
+def has_pac_scope(text: str) -> bool:
+    return any(re.search(pattern, text, re.IGNORECASE) for pattern in _PAC_SCOPE_PATTERNS)
+
+
+def has_policy_workflow(text: str) -> bool:
+    return any(re.search(pattern, text, re.IGNORECASE) for pattern in _POLICY_WORKFLOW_PATTERNS)
diff --git a/src/iac_code/skills/bundled/pac_aliyun/references/infraguard-policy-generation.md b/src/iac_code/skills/bundled/pac_aliyun/references/infraguard-policy-generation.md
new file mode 100644
index 0000000..64c2ec2
--- /dev/null
+++ b/src/iac_code/skills/bundled/pac_aliyun/references/infraguard-policy-generation.md
@@ -0,0 +1,75 @@
+# InfraGuard Policy Generation
+
+This reference keeps PAC work aligned with InfraGuard without vendoring the InfraGuard policy catalog into iac-code.
+
+## Lazy InfraGuard Sync
+
+Run this sync before any PAC implementation, generation, validation, or catalog lookup. It is intentionally lazy: do it only when the PAC skill is triggered and the user needs InfraGuard-backed work.
+
+1. Check whether InfraGuard is available:
+   ```bash
+   infraguard version
+   ```
+2. If the command is missing and the user wants the agent to prepare the local toolchain, install the official CLI:
+   ```bash
+   go install github.com/aliyun/infraguard/cmd/infraguard@latest
+   ```
+3. Check for policy updates before relying on policy names or behavior:
+   ```bash
+   infraguard policy update
+   ```
+4. Inspect the current policy catalog from the refreshed tool:
+   ```bash
+   infraguard policy list
+   ```
+5. When generating or editing custom policies, validate the file:
+   ```bash
+   infraguard policy validate path/to/policy.rego
+   ```
+
+If a command cannot run because InfraGuard or Go is not installed, explain the missing prerequisite and continue only with user-approved installation or with static guidance.
+
+## Policy Lookup
+
+- Prefer official policy IDs and packs from `infraguard policy list`.
+- Use `infraguard policy get <policy-id>` when the user needs details for an existing rule.
+- Use policy references in scan commands as `rule:aliyun:<name>` or `pack:aliyun:<name>`.
+- Do not infer that a previously known policy still exists; refresh first with `infraguard policy update`.
+
+## Template Scanning
+
+Use InfraGuard scan for ROS templates:
+
+```bash
+infraguard scan template.yaml -p pack:aliyun:quick-start-compliance-pack
+```
+
+For automation or downstream analysis, request JSON output:
+
+```bash
+infraguard scan template.yaml -p rule:aliyun:ecs-instance-no-public-ip --format json
+```
+
+Summaries should include the violating resource, property path, severity, reason, and concrete ROS template change.
+
+## Custom Policy Generation
+
+Generate custom Rego only when official policies do not cover the user requirement. Keep each rule focused on one static ROS-template assertion.
+
+Recommended output bundle:
+
+- The custom policy file.
+- A minimal violating ROS template.
+- A minimal passing ROS template.
+- The validation command and scan commands used.
+
+Design constraints:
+
+- Read only from template input, resource definitions, properties, references, mappings, conditions, and parameters.
+- Keep cloud account state, billing history, runtime metrics, and manual approval evidence outside the policy unless the user supplies them as explicit input data.
+- Prefer actionable violation paths pointing to the ROS property the user should edit.
+- Validate syntax with `infraguard policy validate` before presenting the policy as ready.
+
+## Handoff To IaC Workflows
+
+When a policy finding requires editing or regenerating a ROS/Terraform template, use the IaC template workflow after the PAC result is clear. Keep the PAC source of truth in InfraGuard; do not copy official policy bodies into iac-code.
diff --git a/tests/skills/bundled/test_iac_skill.py b/tests/skills/bundled/test_iac_skill.py
index 955a967..9df4ae4 100644
--- a/tests/skills/bundled/test_iac_skill.py
+++ b/tests/skills/bundled/test_iac_skill.py
@@ -2,6 +2,16 @@
 
 from iac_code.skills.bundled import _bundled_skills, get_bundled_skills, init_bundled_skills
 
+IAC_SKILL_ROOT = Path("src/iac_code/skills/bundled/iac_aliyun")
+
+
+def _iac_aliyun_asset_text() -> str:
+    parts = []
+    for path in sorted(IAC_SKILL_ROOT.rglob("*")):
+        if path.is_file() and path.suffix in {".md", ".py", ".rego"}:
+            parts.append(path.read_text(encoding="utf-8"))
+    return "\n".join(parts)
+
 
 class TestIacSkill:
     def setup_method(self):
@@ -38,8 +48,28 @@ def test_iac_skill_mentions_parameter_recommendation_reference(self):
         assert "references/template-parameter-recommendation.md" in iac_skill.content
         assert "已有模板参数推荐" in iac_skill.content
 
+    def test_iac_skill_delegates_infraguard_work_to_pac_skill(self):
+        init_bundled_skills()
+        skills = get_bundled_skills()
+        iac_skill = next(s for s in skills if s.name == "iac-aliyun")
+        assert "pac-aliyun" in iac_skill.content
+        assert "references/infraguard-policy-generation.md" not in iac_skill.content
+        assert "references/infraguard-policies/" not in iac_skill.content
+        assert "package infraguard.rules" not in iac_skill.content
+        assert "helpers.resources_by_type" not in iac_skill.content
+
+    def test_iac_aliyun_assets_do_not_embed_infraguard_policy_catalog(self):
+        assets = _iac_aliyun_asset_text()
+        assert "references/infraguard-policies/" not in assets
+        assert "package infraguard.rules" not in assets
+        assert "rule_meta :=" not in assets
+        assert "deny contains result if" not in assets
+        assert "generate_infraguard_policies" not in assets
+        assert not (IAC_SKILL_ROOT / "references" / "infraguard-policies").exists()
+        assert not (IAC_SKILL_ROOT / "scripts" / "generate_infraguard_policies.py").exists()
+
     def test_parameter_recommendation_reference_exists(self):
-        reference = Path("src/iac_code/skills/bundled/iac_aliyun/references/template-parameter-recommendation.md")
+        reference = IAC_SKILL_ROOT / "references" / "template-parameter-recommendation.md"
         assert reference.exists()
         content = reference.read_text(encoding="utf-8")
         assert "GetTemplateParameterConstraints" in content
diff --git a/tests/skills/bundled/test_pac_aliyun_skill.py b/tests/skills/bundled/test_pac_aliyun_skill.py
new file mode 100644
index 0000000..9ec5bae
--- /dev/null
+++ b/tests/skills/bundled/test_pac_aliyun_skill.py
@@ -0,0 +1,64 @@
+from pathlib import Path
+
+from iac_code.skills.bundled import _bundled_skills, get_bundled_skills, init_bundled_skills
+
+PAC_SKILL_ROOT = Path("src/iac_code/skills/bundled/pac_aliyun")
+
+
+def _pac_aliyun_asset_text() -> str:
+    parts = []
+    for path in sorted(PAC_SKILL_ROOT.rglob("*")):
+        if path.is_file() and path.suffix in {".md", ".py", ".rego"}:
+            parts.append(path.read_text(encoding="utf-8"))
+    return "\n".join(parts)
+
+
+class TestPacAliyunSkill:
+    def setup_method(self):
+        _bundled_skills.clear()
+
+    def test_pac_aliyun_skill_registered(self):
+        init_bundled_skills()
+        skills = get_bundled_skills()
+        pac_skills = [s for s in skills if s.name == "pac-aliyun"]
+        assert len(pac_skills) == 1
+
+    def test_pac_aliyun_skill_not_user_invocable(self):
+        init_bundled_skills()
+        skills = get_bundled_skills()
+        pac_skill = next(s for s in skills if s.name == "pac-aliyun")
+        assert pac_skill.is_user_invocable is False
+
+    def test_pac_aliyun_skill_has_auto_trigger_metadata(self):
+        init_bundled_skills()
+        skills = get_bundled_skills()
+        pac_skill = next(s for s in skills if s.name == "pac-aliyun")
+        assert pac_skill.auto_trigger == {"script": "auto_trigger.py", "supersedes": "iac-aliyun"}
+
+    def test_pac_aliyun_skill_hosts_infraguard_policy_generation(self):
+        init_bundled_skills()
+        skills = get_bundled_skills()
+        pac_skill = next(s for s in skills if s.name == "pac-aliyun")
+        assert "InfraGuard" in pac_skill.content
+        assert "references/infraguard-policy-generation.md" in pac_skill.content
+        assert "infraguard policy update" in pac_skill.content
+        assert "go install github.com/aliyun/infraguard/cmd/infraguard@latest" in pac_skill.content
+
+    def test_pac_aliyun_reference_requires_lazy_update_before_pac_work(self):
+        reference = PAC_SKILL_ROOT / "references" / "infraguard-policy-generation.md"
+        assert reference.exists()
+        content = reference.read_text(encoding="utf-8")
+        assert "Lazy InfraGuard Sync" in content
+        assert "Run this sync before any PAC implementation, generation, validation, or catalog lookup" in content
+        assert "infraguard policy update" in content
+        assert "infraguard policy list" in content
+        assert "infraguard policy validate" in content
+
+    def test_pac_aliyun_assets_do_not_embed_infraguard_policy_catalog(self):
+        assets = _pac_aliyun_asset_text()
+        assert "package infraguard.rules" not in assets
+        assert "package infraguard.packs" not in assets
+        assert "rule_meta :=" not in assets
+        assert "pack_meta :=" not in assets
+        assert "helpers.resources_by_type" not in assets
+        assert not list(PAC_SKILL_ROOT.rglob("*.rego"))
diff --git a/tests/skills/test_auto_trigger.py b/tests/skills/test_auto_trigger.py
index 129542b..b8e649f 100644
--- a/tests/skills/test_auto_trigger.py
+++ b/tests/skills/test_auto_trigger.py
@@ -172,6 +172,86 @@ def test_iac_aliyun_trigger_matches_alicloud_provider_prompt():
     assert should_trigger('用 provider "alicloud" 写一个 ECS 安全组模板')
 
 
+def test_iac_aliyun_trigger_rejects_infraguard_policy_generation():
+    from iac_code.skills.bundled.iac_aliyun.auto_trigger import should_trigger
+
+    assert not should_trigger("生成一个 InfraGuard 合规策略，检查 ECS 不允许公网 IP")
+
+
+@pytest.mark.parametrize(
+    "prompt",
+    [
+        "用 InfraGuard 生成高可用合规策略，检查 RDS 必须多可用区",
+        "生成成本优化策略，检查 ECS 规格不能超过指定系列",
+        "写一个网络架构最佳实践策略，限制安全组不能开放全部端口",
+    ],
+)
+def test_iac_aliyun_trigger_rejects_infraguard_policy_dimensions(prompt):
+    from iac_code.skills.bundled.iac_aliyun.auto_trigger import should_trigger
+
+    assert not should_trigger(prompt)
+
+
+def test_iac_aliyun_auto_trigger_does_not_own_pac_classifier():
+    source = Path("src/iac_code/skills/bundled/iac_aliyun/auto_trigger.py").read_text(encoding="utf-8")
+
+    assert "_PAC_WORKFLOW_PATTERNS" not in source
+    assert "has_pac_workflow" not in source
+
+
+def test_pac_aliyun_trigger_matches_infraguard_policy_generation():
+    from iac_code.skills.bundled.pac_aliyun.auto_trigger import should_trigger
+
+    assert should_trigger("生成一个 InfraGuard 合规策略，检查 ECS 不允许公网 IP")
+
+
+@pytest.mark.parametrize(
+    "prompt",
+    [
+        "用 InfraGuard 生成高可用合规策略，检查 RDS 必须多可用区",
+        "生成成本优化策略，检查 ECS 规格不能超过指定系列",
+        "写一个网络架构最佳实践策略，限制安全组不能开放全部端口",
+        "Validate this ROS template with InfraGuard policies",
+    ],
+)
+def test_pac_aliyun_trigger_matches_policy_dimensions(prompt):
+    from iac_code.skills.bundled.pac_aliyun.auto_trigger import should_trigger
+
+    assert should_trigger(prompt)
+
+
+def test_pac_aliyun_trigger_rejects_aliyun_ram_policy_template_prompt():
+    from iac_code.skills.bundled.pac_aliyun.auto_trigger import should_trigger
+
+    assert not should_trigger("Create an Alibaba Cloud ROS template for a RAM policy")
+
+
+@pytest.mark.parametrize(
+    "prompt",
+    [
+        "生成一个 InfraGuard 合规策略，检查 ECS 不允许公网 IP",
+        "用 Rego 检查这个阿里云 ROS 模板",
+    ],
+)
+def test_pac_prompt_auto_triggers_only_pac_skill(prompt):
+    from iac_code.skills.bundled import _bundled_skills, get_bundled_skills, init_bundled_skills
+
+    _bundled_skills.clear()
+    init_bundled_skills()
+    commands = [
+        PromptCommand(name=skill.name, description=skill.description, skill=skill, source=SkillSource.BUNDLED)
+        for skill in get_bundled_skills()
+    ]
+
+    matches = find_auto_triggered_skills(
+        prompt,
+        commands,
+        loaded_skill_names=set(),
+    )
+
+    assert [match.name for match in matches] == ["pac-aliyun"]
+
+
 @pytest.mark.parametrize(
     "prompt",
     [