diff --git a/.agents/plugins/marketplace.json b/.agents/plugins/marketplace.json
index 4c2c820b7..5c6c660ab 100644
--- a/.agents/plugins/marketplace.json
+++ b/.agents/plugins/marketplace.json
@@ -231,6 +231,18 @@
         "authentication": "ON_INSTALL"
       },
       "category": "开发工具"
+    },
+    {
+      "name": "ppt-translator",
+      "source": {
+        "source": "local",
+        "path": "./plugins/codex/plugins/ppt-translator"
+      },
+      "policy": {
+        "installation": "AVAILABLE",
+        "authentication": "ON_INSTALL"
+      },
+      "category": "文档处理"
     }
   ]
 }
diff --git a/plugins/codex/.agents/plugins/marketplace.json b/plugins/codex/.agents/plugins/marketplace.json
index bdc468f01..c0ea69917 100644
--- a/plugins/codex/.agents/plugins/marketplace.json
+++ b/plugins/codex/.agents/plugins/marketplace.json
@@ -231,6 +231,18 @@
         "authentication": "ON_INSTALL"
       },
       "category": "开发工具"
+    },
+    {
+      "name": "ppt-translator",
+      "source": {
+        "source": "local",
+        "path": "./plugins/ppt-translator"
+      },
+      "policy": {
+        "installation": "AVAILABLE",
+        "authentication": "ON_INSTALL"
+      },
+      "category": "文档处理"
     }
   ]
 }
diff --git a/plugins/codex/plugins/ppt-translator/.codex-plugin/plugin.json b/plugins/codex/plugins/ppt-translator/.codex-plugin/plugin.json
new file mode 100644
index 000000000..f319b6759
--- /dev/null
+++ b/plugins/codex/plugins/ppt-translator/.codex-plugin/plugin.json
@@ -0,0 +1,37 @@
+{
+  "name": "ppt-translator",
+  "version": "1.0.0",
+  "description": "易瞳-牟新麒 提供，可以将 PowerPoint 文件翻译成任何语言，同时保持原有的布局格式。该系统采用“渲染-验证”循环机制（LibreOffice + Vision），从而确保文本不会溢出显示。用户只需在需要翻译 PPT/PPTX 文件时激活该功能即可。",
+  "author": {
+    "name": "EAPIL",
+    "url": "https://git.playones.com/arechen/EapilSkillMarket"
+  },
+  "homepage": "https://git.playones.com/arechen/EapilSkillMarket",
+  "repository": "https://git.playones.com/arechen/EapilSkillMarket",
+  "license": "Proprietary",
+  "keywords": [
+    "eapil",
+    "codex-skill",
+    "ppt-translator"
+  ],
+  "skills": "./skills/",
+  "interface": {
+    "displayName": "ppt-translator",
+    "shortDescription": "易瞳-牟新麒 提供，可以将 PowerPoint 文件翻译成任何语言，同时保持原有的布局格式。该系统采用“渲染-验证”循环机制（LibreOffice + Vision），从而确保文本不会溢出显示。用户只需在需要翻译 PPT/PPTX 文件时激活该功能即可。",
+    "longDescription": "易瞳-牟新麒 提供，可以将 PowerPoint 文件翻译成任何语言，同时保持原有的布局格式。该系统采用“渲染-验证”循环机制（LibreOffice + Vision），从而确保文本不会溢出显示。用户只需在需要翻译 PPT/PPTX 文件时激活该功能即可。",
+    "developerName": "EAPIL",
+    "category": "文档处理",
+    "capabilities": [
+      "Read",
+      "Write"
+    ],
+    "defaultPrompt": [
+      "使用 ppt-translator 帮我完成这个任务。"
+    ],
+    "websiteURL": "https://git.playones.com/arechen/EapilSkillMarket",
+    "privacyPolicyURL": "https://git.playones.com/arechen/EapilSkillMarket",
+    "termsOfServiceURL": "https://git.playones.com/arechen/EapilSkillMarket",
+    "brandColor": "#2563EB",
+    "screenshots": []
+  }
+}
diff --git a/plugins/codex/plugins/ppt-translator/skills/ppt-translator/SKILL.md b/plugins/codex/plugins/ppt-translator/skills/ppt-translator/SKILL.md
new file mode 100644
index 000000000..493936f39
--- /dev/null
+++ b/plugins/codex/plugins/ppt-translator/skills/ppt-translator/SKILL.md
@@ -0,0 +1,53 @@
+---
+name: ppt-translator
+description: Translate PowerPoint files to any language while preserving layout. Uses a render-and-verify agent loop (LibreOffice + Vision) to guarantee no text overflow. Activate when user wants to translate a PPT/PPTX file.
+---
+
+# 🎯 PPT Translator
+
+保持排版翻译 PPT，支持任意语言对。
+
+## 核心原理
+
+**Agent Loop（渲染验证）：**
+1. 提取 PPT 文字 + 样式
+2. LLM 翻译（保证准确）
+3. 写回 PPT（python-pptx）
+4. LibreOffice 渲染成真实 PNG
+5. Vision 模型检测文字溢出
+6. 有溢出 → 缩字号 15% → 回步骤 3
+7. 通过 → 输出最终 PPTX
+
+## 依赖
+
+- `python-pptx`（pip）
+- `libreoffice`（yum/apt）
+
+## 使用方法
+
+```bash
+python3 scripts/translate.py \
+  --input /path/to/file.pptx \
+  --output /path/to/output.pptx \
+  --translations '{"原文": "translation", ...}' \
+  --max-iter 5
+```
+
+## Agent 调用流程
+
+1. 用户发送 PPTX 文件
+2. Agent 提取所有文字 → 翻译（自己翻译或调用 LLM）
+3. 调用 `scripts/translate.py` 执行渲染验证循环
+4. 循环完成后将输出 PPTX 发回用户
+
+## 输出
+
+- 最终 PPTX 文件（可编辑）
+- 渲染验证 PNG（可选，用于确认）
+- 迭代日志（几轮收敛、最终字号缩放比）
+
+## 注意事项
+
+- LibreOffice 首次启动较慢（~5s），之后正常
+- 字号缩放是全局的（所有 shape 等比缩），未来可优化为 per-shape
+- 不支持 .ppt（老格式），仅支持 .pptx
diff --git a/plugins/codex/plugins/ppt-translator/skills/ppt-translator/_meta.json b/plugins/codex/plugins/ppt-translator/skills/ppt-translator/_meta.json
new file mode 100644
index 000000000..981d7675a
--- /dev/null
+++ b/plugins/codex/plugins/ppt-translator/skills/ppt-translator/_meta.json
@@ -0,0 +1,6 @@
+{
+  "ownerId": "kn76b3dg4zkgwkrqk358gn9bph81s6aw",
+  "slug": "ppt-translator",
+  "version": "1.0.0",
+  "publishedAt": 1771959266988
+}
\ No newline at end of file
diff --git a/plugins/codex/plugins/ppt-translator/skills/ppt-translator/scripts/translate.py b/plugins/codex/plugins/ppt-translator/skills/ppt-translator/scripts/translate.py
new file mode 100644
index 000000000..426c9d089
--- /dev/null
+++ b/plugins/codex/plugins/ppt-translator/skills/ppt-translator/scripts/translate.py
@@ -0,0 +1,134 @@
+#!/usr/bin/env python3
+"""
+PPT Translator - Agent Loop Core
+用法:
+  python3 translate.py --input file.pptx --output out.pptx --translations '{"中文": "English"}' [--max-iter 5]
+
+检测溢出：本脚本只做渲染+写回，溢出检测由外部调用（Agent Vision）完成。
+完整 loop 由 Agent 驱动：写PPT → 渲染 → Vision检测 → 缩字号 → 重复。
+"""
+
+import argparse
+import json
+import subprocess
+import sys
+import os
+from pathlib import Path
+from pptx import Presentation
+from pptx.util import Pt
+
+
+def get_para_text(para):
+    return "".join(run.text for run in para.runs).strip()
+
+
+def write_translated_pptx(input_path: str, output_path: str,
+                           translations: dict, scale: float = 1.0):
+    """
+    Write translated PPTX with optional font scale.
+    translations: {original_text: translated_text}
+    scale: font size multiplier (1.0 = no change, 0.85 = shrink 15%)
+    """
+    prs = Presentation(input_path)
+
+    for slide in prs.slides:
+        for shape in slide.shapes:
+            if not shape.has_text_frame:
+                continue
+            tf = shape.text_frame
+            tf.word_wrap = True
+
+            for para in tf.paragraphs:
+                orig = get_para_text(para)
+                if not orig or orig not in translations:
+                    continue
+                translated = translations[orig]
+                if not para.runs:
+                    continue
+
+                # Get original font size
+                orig_pt = next((r.font.size.pt for r in para.runs if r.font.size), 12.0)
+                new_pt = max(6.0, round(orig_pt * scale, 1))
+
+                # Apply: first run gets full text, others cleared
+                para.runs[0].text = translated
+                para.runs[0].font.size = Pt(new_pt)
+                for run in para.runs[1:]:
+                    run.text = ""
+
+    prs.save(output_path)
+    return output_path
+
+
+def render_to_png(pptx_path: str, output_dir: str) -> str:
+    """Render PPTX to PNG using LibreOffice. Returns PNG path."""
+    result = subprocess.run(
+        ['libreoffice', '--headless', '--convert-to', 'png',
+         '--outdir', output_dir, pptx_path],
+        capture_output=True, text=True, timeout=60
+    )
+    if result.returncode != 0:
+        raise RuntimeError(f"LibreOffice failed: {result.stderr}")
+
+    stem = Path(pptx_path).stem
+    png_path = Path(output_dir) / f"{stem}.png"
+    if not png_path.exists():
+        pngs = sorted(Path(output_dir).glob(f"{stem}*.png"))
+        if not pngs:
+            raise RuntimeError(f"No PNG generated in {output_dir}")
+        png_path = pngs[0]
+    return str(png_path)
+
+
+def extract_texts(input_path: str) -> list:
+    """Extract all non-empty paragraph texts from PPTX."""
+    prs = Presentation(input_path)
+    texts = []
+    for slide in prs.slides:
+        for shape in slide.shapes:
+            if shape.has_text_frame:
+                for para in shape.text_frame.paragraphs:
+                    t = get_para_text(para)
+                    if t:
+                        texts.append(t)
+    return list(dict.fromkeys(texts))  # deduplicated
+
+
+def main():
+    parser = argparse.ArgumentParser(description="PPT Translator Core")
+    parser.add_argument("--input", required=True, help="Input PPTX path")
+    parser.add_argument("--output", required=False, help="Output PPTX path")
+    parser.add_argument("--translations", required=False,
+                        help="JSON string: {original: translated}")
+    parser.add_argument("--scale", type=float, default=1.0,
+                        help="Font scale factor (default: 1.0)")
+    parser.add_argument("--render", action="store_true",
+                        help="Also render to PNG after writing")
+    parser.add_argument("--extract", action="store_true",
+                        help="Just extract texts and print as JSON, then exit")
+    args = parser.parse_args()
+
+    if args.extract:
+        texts = extract_texts(args.input)
+        print(json.dumps(texts, ensure_ascii=False, indent=2))
+        return
+
+    if not args.translations:
+        print("Error: --translations required unless --extract", file=sys.stderr)
+        sys.exit(1)
+
+    translations = json.loads(args.translations)
+
+    output_path = write_translated_pptx(
+        args.input, args.output, translations, args.scale
+    )
+    print(json.dumps({"status": "ok", "output": output_path, "scale": args.scale}))
+
+    if args.render:
+        output_dir = str(Path(args.output).parent)
+        png_path = render_to_png(output_path, output_dir)
+        print(json.dumps({"status": "rendered", "png": png_path}))
+
+
+if __name__ == "__main__":
+    main()