diff --git a/skills/tester/README.md b/skills/tester/README.md
index 6b7fc08..8f67a03 100644
--- a/skills/tester/README.md
+++ b/skills/tester/README.md
@@ -85,3 +85,19 @@ APK/IPA，为本轮创建隔离 worktree，在 Android 和 iOS tester 节点安
 - **列出**：能看到分类表和总条数；`.pouch/tester/cases.csv` 已由 skill 里的 `generate_cases_csv.py` 从 `cases/` 重新生成。每次运行的结果保存在独立的 `.pouch/tester/runs/<run-id>.*` 文件中。
 - **维护**：目标 id 能 `查看` 到，且检查通过。
 - **运行**：有本次 `runs/*.yaml` 快照和同名 `.csv` 成绩单（`executed` 列区分已跑 / 未跑）；没填 HOST 时会停，而不是编造失败。
+
+### 汇总已有运行结果
+
+对已经生成的同一运行 CSV/YAML，使用显式路径汇总：
+
+```bash
+python3 <skill-dir>/scripts/summarize_run.py \
+  --csv .pouch/tester/runs/<run-id>.csv \
+  --yaml .pouch/tester/runs/<run-id>.yaml
+```
+
+脚本只从 CSV 的 `result` 列计算 `pass`、`fail`、`environment-fail`、`skipped`、
+`not-run` 五类状态，并要求五类计数和等于 CSV 数据行数。YAML 只用于校验
+`results` 数量和 testcase id 集合；数量、集合、重复/缺失 id 或 CSV 缺失/未知状态
+时返回非零并输出诊断。校验成功才表示这份汇总可作为运行报告；非零表示报告不一致，
+不能据此判定产品失败。
diff --git a/skills/tester/references/run.md b/skills/tester/references/run.md
index 92c5716..f74427f 100644
--- a/skills/tester/references/run.md
+++ b/skills/tester/references/run.md
@@ -227,7 +227,23 @@ python3 <skill-dir>/scripts/catalog.py run-script --root <root> --id <id>
 python3 <skill-dir>/scripts/generate_run_csv.py --root <root> --run <yaml>
 ```
 
-这会写出与快照同名的 `.pouch/tester/runs/<run-id>.csv`（`executed=yes|no`），不会修改 `cases.csv`。对话里两个路径都报。
+这会写出与快照同名的 `.pouch/tester/runs/<run-id>.csv`（`executed=yes|no`），不会修改
+`cases.csv`。对话里两个路径都报。
+
+需要复核已有成绩单时，显式同时传入同一次运行的 CSV 和 YAML：
+
+```bash
+python3 <skill-dir>/scripts/summarize_run.py \
+  --csv .pouch/tester/runs/<run-id>.csv \
+  --yaml .pouch/tester/runs/<run-id>.yaml
+```
+
+汇总状态只读取 CSV `result` 列，必须输出五类 `pass / fail / environment-fail /
+skipped / not-run`，且计数和等于 CSV 数据行数。汇总前会检查 CSV 数据行数、CSV 唯一
+testcase id 数、YAML `results` 数量和 CSV/YAML testcase id 集合；重复或缺失 id、缺失或
+未知 CSV 状态、任一数量或集合不一致都会非零退出并给出诊断。YAML 的 `counts` 或其它
+历史汇总字段不会参与状态计数。退出码 0 表示汇总校验成功，非零表示报告不一致或输入
+无效，不等同于产品测试失败。
 
 对话报告：
 
diff --git a/skills/tester/scripts/summarize_run.py b/skills/tester/scripts/summarize_run.py
new file mode 100644
index 0000000..9ce1791
--- /dev/null
+++ b/skills/tester/scripts/summarize_run.py
@@ -0,0 +1,175 @@
+#!/usr/bin/env python3
+"""Validate a tester CSV/YAML pair and summarize statuses from CSV only."""
+
+from __future__ import annotations
+
+import argparse
+import csv
+import sys
+from collections import Counter
+from pathlib import Path
+from typing import Any
+
+try:
+    import yaml
+except ImportError:  # pragma: no cover
+    print("需要 PyYAML: python3 -m pip install pyyaml", file=sys.stderr)
+    raise SystemExit(2)
+
+
+RESULTS = ("pass", "fail", "environment-fail", "skipped", "not-run")
+RESULT_SET = frozenset(RESULTS)
+
+
+class SummaryError(ValueError):
+    """Raised when the CSV/YAML pair cannot be safely summarized."""
+
+
+def _format_ids(ids: set[str]) -> str:
+    return ", ".join(sorted(ids)) or "(none)"
+
+
+def _duplicate_ids(ids: list[str]) -> list[str]:
+    counts = Counter(ids)
+    return sorted(case_id for case_id, count in counts.items() if count > 1)
+
+
+def load_csv(path: Path) -> list[dict[str, str]]:
+    """Load CSV rows and reject malformed IDs/results with diagnostics."""
+    try:
+        handle = path.open(encoding="utf-8-sig", newline="")
+    except OSError as exc:
+        raise SummaryError(f"无法读取 CSV {path}: {exc}") from exc
+
+    with handle:
+        reader = csv.DictReader(handle)
+        if not reader.fieldnames:
+            raise SummaryError(f"CSV {path} 缺少表头")
+        missing_fields = [field for field in ("id", "result") if field not in reader.fieldnames]
+        if missing_fields:
+            raise SummaryError(f"CSV {path} 缺少必需列: {', '.join(missing_fields)}")
+        rows = list(reader)
+
+    ids: list[str] = []
+    errors: list[str] = []
+    for line_number, row in enumerate(rows, start=2):
+        case_id = (row.get("id") or "").strip()
+        result = (row.get("result") or "").strip()
+        ids.append(case_id)
+        if not case_id:
+            errors.append(f"CSV 第 {line_number} 行 testcase id 缺失")
+        if not result:
+            errors.append(f"CSV 第 {line_number} 行 result 缺失 (testcase id={case_id or '(missing)'})")
+        elif result not in RESULT_SET:
+            errors.append(
+                f"CSV 第 {line_number} 行 result 未知: {result!r} "
+                f"(testcase id={case_id or '(missing)'}; 允许值={', '.join(RESULTS)})"
+            )
+
+    duplicates = _duplicate_ids([case_id for case_id in ids if case_id])
+    if duplicates:
+        errors.append(f"CSV testcase id 重复: {_format_ids(set(duplicates))}")
+    if errors:
+        raise SummaryError("CSV 校验失败:\n- " + "\n- ".join(errors))
+    return rows
+
+
+def load_yaml_results(path: Path) -> list[dict[str, Any]]:
+    """Load only YAML results structure needed for count/ID validation."""
+    try:
+        data = yaml.safe_load(path.read_text(encoding="utf-8"))
+    except OSError as exc:
+        raise SummaryError(f"无法读取 YAML {path}: {exc}") from exc
+    except yaml.YAMLError as exc:
+        raise SummaryError(f"YAML 解析失败 {path}: {exc}") from exc
+
+    if not isinstance(data, dict) or not isinstance(data.get("results"), list):
+        raise SummaryError(f"YAML {path} 缺少 results 列表")
+
+    results = data["results"]
+    ids: list[str] = []
+    errors: list[str] = []
+    for index, item in enumerate(results, start=1):
+        if not isinstance(item, dict):
+            errors.append(f"YAML results[{index}] 不是 mapping")
+            continue
+        case_id = str(item.get("id") or "").strip()
+        ids.append(case_id)
+        if not case_id:
+            errors.append(f"YAML results[{index}] testcase id 缺失")
+
+    duplicates = _duplicate_ids([case_id for case_id in ids if case_id])
+    if duplicates:
+        errors.append(f"YAML testcase id 重复: {_format_ids(set(duplicates))}")
+    if errors:
+        raise SummaryError("YAML 校验失败:\n- " + "\n- ".join(errors))
+    return results
+
+
+def summarize(csv_path: Path, yaml_path: Path) -> tuple[Counter[str], dict[str, int]]:
+    """Validate the pair and return counts calculated from CSV result values."""
+    rows = load_csv(csv_path)
+    yaml_results = load_yaml_results(yaml_path)
+    csv_ids = [(row.get("id") or "").strip() for row in rows]
+    yaml_ids = [str(item.get("id") or "").strip() for item in yaml_results]
+    csv_id_set = set(csv_ids)
+    yaml_id_set = set(yaml_ids)
+    diagnostics: list[str] = []
+
+    if len(rows) != len(csv_id_set):
+        diagnostics.append(
+            f"CSV 数据行总数与唯一 testcase id 数不一致: rows={len(rows)} unique_ids={len(csv_id_set)}"
+        )
+    if len(rows) != len(yaml_results):
+        diagnostics.append(
+            f"CSV 数据行总数与 YAML results 数量不一致: csv_rows={len(rows)} yaml_results={len(yaml_results)}"
+        )
+    if csv_id_set != yaml_id_set:
+        diagnostics.append(
+            "CSV/YAML testcase id 集合不一致: "
+            f"仅 CSV 有 [{_format_ids(csv_id_set - yaml_id_set)}]; "
+            f"仅 YAML 有 [{_format_ids(yaml_id_set - csv_id_set)}]"
+        )
+    if diagnostics:
+        raise SummaryError("CSV/YAML 汇总校验失败:\n- " + "\n- ".join(diagnostics))
+
+    counts: Counter[str] = Counter((row.get("result") or "").strip() for row in rows)
+    total = sum(counts[name] for name in RESULTS)
+    if total != len(rows):
+        raise SummaryError(
+            "CSV 状态计数和不等于数据行总数: "
+            f"count_sum={total} csv_rows={len(rows)}"
+        )
+    metadata = {
+        "csv_rows": len(rows),
+        "csv_unique_ids": len(csv_id_set),
+        "yaml_results": len(yaml_results),
+        "count_sum": total,
+    }
+    return counts, metadata
+
+
+def main(argv: list[str] | None = None) -> int:
+    parser = argparse.ArgumentParser(description="校验 tester CSV/YAML 并从 CSV result 汇总状态")
+    parser.add_argument("--csv", required=True, type=Path, help="运行成绩单 CSV")
+    parser.add_argument("--yaml", required=True, type=Path, help="对应运行快照 YAML")
+    args = parser.parse_args(argv)
+    try:
+        counts, metadata = summarize(args.csv, args.yaml)
+    except SummaryError as exc:
+        print(f"汇总失败: {exc}", file=sys.stderr)
+        return 1
+
+    bits = " ".join(f"{name}={counts[name]}" for name in RESULTS)
+    print(f"summary source=CSV.result {bits} total={metadata['count_sum']}")
+    print(
+        "validated "
+        f"csv_rows={metadata['csv_rows']} "
+        f"csv_unique_ids={metadata['csv_unique_ids']} "
+        f"yaml_results={metadata['yaml_results']}"
+    )
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/skills/tester/tests/test_run_summary.py b/skills/tester/tests/test_run_summary.py
new file mode 100644
index 0000000..c2ed4aa
--- /dev/null
+++ b/skills/tester/tests/test_run_summary.py
@@ -0,0 +1,129 @@
+#!/usr/bin/env python3
+import csv
+import subprocess
+import sys
+import tempfile
+import unittest
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "scripts"))
+import summarize_run
+
+
+class RunSummaryTests(unittest.TestCase):
+    def setUp(self):
+        self.temp = tempfile.TemporaryDirectory()
+        self.root = Path(self.temp.name)
+        self.csv_path = self.root / "run.csv"
+        self.yaml_path = self.root / "run.yaml"
+        self.rows = [
+            {"id": "TC-001", "result": "pass"},
+            {"id": "TC-002", "result": "fail"},
+            {"id": "TC-003", "result": "environment-fail"},
+            {"id": "TC-004", "result": "skipped"},
+            {"id": "TC-005", "result": "not-run"},
+        ]
+        self.write_csv(self.rows)
+        self.write_yaml([{"id": row["id"], "result": row["result"]} for row in self.rows])
+
+    def tearDown(self):
+        self.temp.cleanup()
+
+    def write_csv(self, rows):
+        with self.csv_path.open("w", encoding="utf-8", newline="") as handle:
+            writer = csv.DictWriter(handle, fieldnames=["id", "result"])
+            writer.writeheader()
+            writer.writerows(rows)
+
+    def write_yaml(self, results):
+        import yaml
+
+        self.yaml_path.write_text(
+            yaml.safe_dump(
+                {"counts": {"pass": 999}, "results": results},
+                sort_keys=False,
+            ),
+            encoding="utf-8",
+        )
+
+    def run_cli(self):
+        return subprocess.run(
+            [
+                sys.executable,
+                str(Path(summarize_run.__file__).resolve()),
+                "--csv",
+                str(self.csv_path),
+                "--yaml",
+                str(self.yaml_path),
+            ],
+            text=True,
+            capture_output=True,
+        )
+
+    def test_valid_summary_uses_csv_results(self):
+        result = self.run_cli()
+        self.assertEqual(result.returncode, 0, result.stderr)
+        self.assertIn("source=CSV.result", result.stdout)
+        self.assertIn("pass=1 fail=1 environment-fail=1 skipped=1 not-run=1 total=5", result.stdout)
+
+    def test_yaml_counts_do_not_drive_status_summary(self):
+        self.write_csv([{"id": "TC-001", "result": "fail"}])
+        self.write_yaml([{"id": "TC-001", "result": "fail"}])
+        result = self.run_cli()
+        self.assertEqual(result.returncode, 0, result.stderr)
+        self.assertIn("pass=0 fail=1", result.stdout)
+        self.assertNotIn("pass=999", result.stdout)
+
+    def test_yaml_result_count_mismatch_is_nonzero(self):
+        self.write_yaml([{"id": row["id"], "result": row["result"]} for row in self.rows[:-1]])
+        result = self.run_cli()
+        self.assertNotEqual(result.returncode, 0)
+        self.assertIn("YAML results 数量不一致", result.stderr)
+
+    def test_id_set_mismatch_is_nonzero(self):
+        self.write_yaml([{"id": row["id"], "result": row["result"]} for row in self.rows[:-1]] + [{"id": "TC-999"}])
+        result = self.run_cli()
+        self.assertNotEqual(result.returncode, 0)
+        self.assertIn("testcase id 集合不一致", result.stderr)
+
+    def test_duplicate_csv_id_is_nonzero(self):
+        rows = self.rows.copy()
+        rows[-1] = {"id": "TC-001", "result": "not-run"}
+        self.write_csv(rows)
+        result = self.run_cli()
+        self.assertNotEqual(result.returncode, 0)
+        self.assertIn("CSV testcase id 重复", result.stderr)
+
+    def test_missing_csv_id_is_nonzero(self):
+        rows = self.rows.copy()
+        rows[0] = {"id": "", "result": "pass"}
+        self.write_csv(rows)
+        result = self.run_cli()
+        self.assertNotEqual(result.returncode, 0)
+        self.assertIn("CSV 第 2 行 testcase id 缺失", result.stderr)
+
+    def test_duplicate_or_missing_yaml_id_is_nonzero(self):
+        cases = [
+            ([{"id": "TC-001"}, {"id": "TC-001"}] + [{"id": row["id"]} for row in self.rows[2:]], "YAML testcase id 重复"),
+            ([{"id": ""}] + [{"id": row["id"]} for row in self.rows[1:]], "YAML results[1] testcase id 缺失"),
+        ]
+        for results, expected in cases:
+            with self.subTest(expected=expected):
+                self.write_yaml(results)
+                result = self.run_cli()
+                self.assertNotEqual(result.returncode, 0)
+                self.assertIn(expected, result.stderr)
+
+    def test_unknown_or_missing_csv_result_is_nonzero(self):
+        for bad_result, expected in [("unexpected", "result 未知"), ("", "result 缺失")]:
+            with self.subTest(bad_result=bad_result):
+                rows = self.rows.copy()
+                rows[0] = {"id": "TC-001", "result": bad_result}
+                self.write_csv(rows)
+                result = self.run_cli()
+                self.assertNotEqual(result.returncode, 0)
+                self.assertIn(expected, result.stderr)
+
+
+if __name__ == "__main__":
+    unittest.main()