repo-scan
從固定 commit 安裝外部 repo-scan skill 的啟動指引
中文翻譯
---
name: repo-scan
description: 從固定、可審查的 commit 安裝外部 repo-scan skill 的啟動指引。在執行跨技術堆疊的原始碼資產稽核之前，必須先安裝 repo-scan 時使用；這個 ECC 指引本身不執行稽核。
metadata:
origin: community
---
# repo-scan
> 每個生態系都有自己的依賴管理工具，但沒有任何工具能橫跨 C++、Android、iOS 和 Web，告訴你：到底有多少程式碼是自己的、哪些是第三方的、哪些是累贅。
## 何時使用
- 接手大型舊程式碼庫，需要結構性的總覽
- 大型重構之前：找出什麼是核心、什麼是重複、什麼是死碼
- 稽核直接嵌在原始碼裡的第三方依賴（沒有在套件管理工具中宣告）
- 為 monorepo 重組準備架構決策紀錄
## 安裝
```bash
# 先 clone，這樣才能在安裝前審查固定的 commit
set -euo pipefail
REPO_SCAN_COMMIT=2742664ebcad1450c208eda0ae45d3c17fad5dd8
REPO_SCAN_INSTALL_DIR="${CLAUDE_CONFIG_DIR:-$HOME/.claude}/skills/repo-scan"
REPO_SCAN_INSTALL_PARENT="$(dirname "$REPO_SCAN_INSTALL_DIR")"
mkdir -p "$REPO_SCAN_INSTALL_PARENT"
REPO_SCAN_TMP="$(mktemp -d "$REPO_SCAN_INSTALL_PARENT/.repo-scan-install.XXXXXX")"
REPO_SCAN_TOKEN="${REPO_SCAN_TMP##*.}"
REPO_SCAN_STAGE="$REPO_SCAN_TMP/stage-$REPO_SCAN_TOKEN"
REPO_SCAN_BACKUP="$REPO_SCAN_TMP/backup-$REPO_SCAN_TOKEN"
REPO_SCAN_LOCK="$REPO_SCAN_INSTALL_PARENT/.repo-scan-install.lock"
REPO_SCAN_KEEP_TMP=0
REPO_SCAN_LOCK_HELD=0
REPO_SCAN_MV_HAS_NO_TARGET=0
cleanup_repo_scan_install() {
if [ "$REPO_SCAN_KEEP_TMP" -eq 0 ]; then
rm -rf -- "$REPO_SCAN_TMP"
fi
if [ "$REPO_SCAN_LOCK_HELD" -eq 1 ] && ! rmdir -- "$REPO_SCAN_LOCK"; then
printf 'Could not release installation lock at %s\n' "$REPO_SCAN_LOCK" >&2
fi
}
trap cleanup_repo_scan_install EXIT
mkdir "$REPO_SCAN_TMP/mv-probe-source"
if mv -T -- "$REPO_SCAN_TMP/mv-probe-source" \
"$REPO_SCAN_TMP/mv-probe-destination" 2>/dev/null; then
REPO_SCAN_MV_HAS_NO_TARGET=1
rmdir "$REPO_SCAN_TMP/mv-probe-destination"
else
rmdir "$REPO_SCAN_TMP/mv-probe-source"
fi
move_repo_scan_dir() {
REPO_SCAN_MOVE_SOURCE=$1
REPO_SCAN_MOVE_DESTINATION=$2
REPO_SCAN_MOVE_NAME=${REPO_SCAN_MOVE_SOURCE##*/}
if [ -e "$REPO_SCAN_MOVE_DESTINATION" ] || [ -L "$REPO_SCAN_MOVE_DESTINATION" ]; then
return 1
fi
if [ "$REPO_SCAN_MV_HAS_NO_TARGET" -eq 1 ]; then
mv -T -- "$REPO_SCAN_MOVE_SOURCE" "$REPO_SCAN_MOVE_DESTINATION"
return
fi
if ! mv -- "$REPO_SCAN_MOVE_SOURCE" "$REPO_SCAN_MOVE_DESTINATION"; then
return 1
fi
if [ -e "$REPO_SCAN_MOVE_DESTINATION/$REPO_SCAN_MOVE_NAME" ] || \
[ -L "$REPO_SCAN_MOVE_DESTINATION/$REPO_SCAN_MOVE_NAME" ]; then
if ! mv -- "$REPO_SCAN_MOVE_DESTINATION/$REPO_SCAN_MOVE_NAME" \
"$REPO_SCAN_MOVE_SOURCE"; then
REPO_SCAN_KEEP_TMP=1
printf 'Move conflict recovery failed; staged data remains at %s\n' \
"$REPO_SCAN_MOVE_DESTINATION/$REPO_SCAN_MOVE_NAME" >&2
fi
return 1
fi
}
git clone --filter=blob:none --no-checkout \
https://github.com/haibindev/repo-scan.git "$REPO_SCAN_TMP/source"
git -C "$REPO_SCAN_TMP/source" checkout --detach "$REPO_SCAN_COMMIT"
mkdir -p "$REPO_SCAN_STAGE"
git -C "$REPO_SCAN_TMP/source" archive "$REPO_SCAN_COMMIT" | \
tar -xf - -C "$REPO_SCAN_STAGE"
# 核准安裝之前，先審查 "$REPO_SCAN_TMP/source"。
printf 'Type install to replace %s after reviewing the pinned source: ' \
"$REPO_SCAN_INSTALL_DIR" >&2
read -r REPO_SCAN_CONFIRM
if [ "$REPO_SCAN_CONFIRM" != install ]; then
printf 'Installation cancelled.\n' >&2
exit 1
fi
if ! mkdir -- "$REPO_SCAN_LOCK" 2>/dev/null; then
printf 'Another repo-scan installation holds the lock at %s\n' \
"$REPO_SCAN_LOCK" >&2
exit 1
fi
REPO_SCAN_LOCK_HELD=1
if [ -e "$REPO_SCAN_INSTALL_DIR" ] || [ -L "$REPO_SCAN_INSTALL_DIR" ]; then
move_repo_scan_dir "$REPO_SCAN_INSTALL_DIR" "$REPO_SCAN_BACKUP"
fi
if ! move_repo_scan_dir "$REPO_SCAN_STAGE" "$REPO_SCAN_INSTALL_DIR"; then
if [ -e "$REPO_SCAN_BACKUP" ] || [ -L "$REPO_SCAN_BACKUP" ]; then
if [ -e "$REPO_SCAN_INSTALL_DIR" ] || [ -L "$REPO_SCAN_INSTALL_DIR" ]; then
REPO_SCAN_KEEP_TMP=1
printf 'Replacement failed and target was recreated; previous installation preserved at %s\n' \
"$REPO_SCAN_BACKUP" >&2
elif ! move_repo_scan_dir "$REPO_SCAN_BACKUP" "$REPO_SCAN_INSTALL_DIR"; then
REPO_SCAN_KEEP_TMP=1
printf 'Replacement and rollback failed; previous installation preserved at %s\n' \
"$REPO_SCAN_BACKUP" >&2
fi
fi
exit 1
fi
```
> 安裝任何 agent skill 之前，都要先審查原始碼。
安裝只會完成啟動程序。重新載入你的 agent harness，然後再次呼叫 `repo-scan`。這個 ECC 指引會安裝外部 skill，但本身不會執行掃描。
## 核心能力
| 能力 | 說明 |
|---|---|
| **跨技術堆疊掃描** | 一次掃過 C/C++、Java/Android、iOS（OC/Swift）、Web（TS/JS/Vue） |
| **檔案分類** | 每個檔案都標成專案程式碼、第三方，或建置產物 |
| **函式庫偵測** | 50 多個已知函式庫（FFmpeg、Boost、OpenSSL…），並擷取版本 |
| **四級判定** | Core Asset／Extract & Merge／Rebuild／Deprecate |
| **HTML 報告** | 互動式深色主題頁面，可逐層下鑽 |
| **Monorepo 支援** | 階層式掃描，附彙總與子專案報告 |
## 分析深度等級
| 等級 | 讀取的檔案 | 使用情境 |
|---|---|---|
| `fast` | 每個模組 1-2 個 | 快速盤點巨大的目錄 |
| `standard` | 每個模組 2-5 個 | 預設的稽核，含完整的依賴與架構檢查 |
| `deep` | 每個模組 5-10 個 | 加上 thread safety、記憶體管理、API 一致性 |
| `full` | 所有檔案 | merge 前的完整 review |
## 運作方式
1. **分類 repo 表面**：列舉檔案，然後把每個標成專案程式碼、嵌入的第三方程式碼，或建置產物。
2. **偵測嵌入的函式庫**：檢查目錄名稱、header、授權檔案和版本標記，找出打包進來的依賴和可能的版本。
3. **替每個模組評分**：依模組或子系統把檔案分組，再依所有權、重複程度和維護成本，給出四種判定之一。
4. **標出結構性風險**：點出累贅的產物、重複的 wrapper、過時的 vendored 程式碼，以及該抽出、重建或棄用的模組。
5. **產出報告**：回傳精簡的摘要，加上可逐模組下鑽的互動式 HTML 輸出，讓稽核結果可以非同步審閱。
## 範例
在一個 50,000 個檔案的 C++ monorepo 上：
- 發現 FFmpeg 2.x（2015 年份）仍在 production 使用
- 發現同一個 SDK wrapper 被複製了 3 份
- 找出 636 MB 被 commit 進來的 Debug/ipch/obj 建置產物
- 分類結果：3 MB 專案程式碼 vs 596 MB 第三方
## 最佳實踐
- 第一次稽核先用 `standard` 深度
- 有 100 個以上模組的 monorepo，用 `fast` 快速盤點
- 對被標記要重構的模組，漸進式地跑 `deep`
- 檢視跨模組分析，找出子專案之間的重複
## 連結
- [GitHub Repository](https://github.com/haibindev/repo-scan)英文原文
---
name: repo-scan
description: Bootstrap pointer that installs the external repo-scan skill from a pinned, reviewable commit. Use when repo-scan must be installed before running its cross-stack source-code asset audit; this ECC pointer does not perform the audit itself.
metadata:
origin: community
---
# repo-scan
> Every ecosystem has its own dependency manager, but no tool looks across C++, Android, iOS, and Web to tell you: how much code is actually yours, what's third-party, and what's dead weight.
## When to Use
- Taking over a large legacy codebase and need a structural overview
- Before major refactoring — identify what's core, what's duplicate, what's dead
- Auditing third-party dependencies embedded directly in source (not declared in package managers)
- Preparing architecture decision records for monorepo reorganization
## Installation
```bash
# Clone first so the pinned commit can be reviewed before installation
set -euo pipefail
REPO_SCAN_COMMIT=2742664ebcad1450c208eda0ae45d3c17fad5dd8
REPO_SCAN_INSTALL_DIR="${CLAUDE_CONFIG_DIR:-$HOME/.claude}/skills/repo-scan"
REPO_SCAN_INSTALL_PARENT="$(dirname "$REPO_SCAN_INSTALL_DIR")"
mkdir -p "$REPO_SCAN_INSTALL_PARENT"
REPO_SCAN_TMP="$(mktemp -d "$REPO_SCAN_INSTALL_PARENT/.repo-scan-install.XXXXXX")"
REPO_SCAN_TOKEN="${REPO_SCAN_TMP##*.}"
REPO_SCAN_STAGE="$REPO_SCAN_TMP/stage-$REPO_SCAN_TOKEN"
REPO_SCAN_BACKUP="$REPO_SCAN_TMP/backup-$REPO_SCAN_TOKEN"
REPO_SCAN_LOCK="$REPO_SCAN_INSTALL_PARENT/.repo-scan-install.lock"
REPO_SCAN_KEEP_TMP=0
REPO_SCAN_LOCK_HELD=0
REPO_SCAN_MV_HAS_NO_TARGET=0
cleanup_repo_scan_install() {
if [ "$REPO_SCAN_KEEP_TMP" -eq 0 ]; then
rm -rf -- "$REPO_SCAN_TMP"
fi
if [ "$REPO_SCAN_LOCK_HELD" -eq 1 ] && ! rmdir -- "$REPO_SCAN_LOCK"; then
printf 'Could not release installation lock at %s\n' "$REPO_SCAN_LOCK" >&2
fi
}
trap cleanup_repo_scan_install EXIT
mkdir "$REPO_SCAN_TMP/mv-probe-source"
if mv -T -- "$REPO_SCAN_TMP/mv-probe-source" \
"$REPO_SCAN_TMP/mv-probe-destination" 2>/dev/null; then
REPO_SCAN_MV_HAS_NO_TARGET=1
rmdir "$REPO_SCAN_TMP/mv-probe-destination"
else
rmdir "$REPO_SCAN_TMP/mv-probe-source"
fi
move_repo_scan_dir() {
REPO_SCAN_MOVE_SOURCE=$1
REPO_SCAN_MOVE_DESTINATION=$2
REPO_SCAN_MOVE_NAME=${REPO_SCAN_MOVE_SOURCE##*/}
if [ -e "$REPO_SCAN_MOVE_DESTINATION" ] || [ -L "$REPO_SCAN_MOVE_DESTINATION" ]; then
return 1
fi
if [ "$REPO_SCAN_MV_HAS_NO_TARGET" -eq 1 ]; then
mv -T -- "$REPO_SCAN_MOVE_SOURCE" "$REPO_SCAN_MOVE_DESTINATION"
return
fi
if ! mv -- "$REPO_SCAN_MOVE_SOURCE" "$REPO_SCAN_MOVE_DESTINATION"; then
return 1
fi
if [ -e "$REPO_SCAN_MOVE_DESTINATION/$REPO_SCAN_MOVE_NAME" ] || \
[ -L "$REPO_SCAN_MOVE_DESTINATION/$REPO_SCAN_MOVE_NAME" ]; then
if ! mv -- "$REPO_SCAN_MOVE_DESTINATION/$REPO_SCAN_MOVE_NAME" \
"$REPO_SCAN_MOVE_SOURCE"; then
REPO_SCAN_KEEP_TMP=1
printf 'Move conflict recovery failed; staged data remains at %s\n' \
"$REPO_SCAN_MOVE_DESTINATION/$REPO_SCAN_MOVE_NAME" >&2
fi
return 1
fi
}
git clone --filter=blob:none --no-checkout \
https://github.com/haibindev/repo-scan.git "$REPO_SCAN_TMP/source"
git -C "$REPO_SCAN_TMP/source" checkout --detach "$REPO_SCAN_COMMIT"
mkdir -p "$REPO_SCAN_STAGE"
git -C "$REPO_SCAN_TMP/source" archive "$REPO_SCAN_COMMIT" | \
tar -xf - -C "$REPO_SCAN_STAGE"
# Review "$REPO_SCAN_TMP/source" before approving installation.
printf 'Type install to replace %s after reviewing the pinned source: ' \
"$REPO_SCAN_INSTALL_DIR" >&2
read -r REPO_SCAN_CONFIRM
if [ "$REPO_SCAN_CONFIRM" != install ]; then
printf 'Installation cancelled.\n' >&2
exit 1
fi
if ! mkdir -- "$REPO_SCAN_LOCK" 2>/dev/null; then
printf 'Another repo-scan installation holds the lock at %s\n' \
"$REPO_SCAN_LOCK" >&2
exit 1
fi
REPO_SCAN_LOCK_HELD=1
if [ -e "$REPO_SCAN_INSTALL_DIR" ] || [ -L "$REPO_SCAN_INSTALL_DIR" ]; then
move_repo_scan_dir "$REPO_SCAN_INSTALL_DIR" "$REPO_SCAN_BACKUP"
fi
if ! move_repo_scan_dir "$REPO_SCAN_STAGE" "$REPO_SCAN_INSTALL_DIR"; then
if [ -e "$REPO_SCAN_BACKUP" ] || [ -L "$REPO_SCAN_BACKUP" ]; then
if [ -e "$REPO_SCAN_INSTALL_DIR" ] || [ -L "$REPO_SCAN_INSTALL_DIR" ]; then
REPO_SCAN_KEEP_TMP=1
printf 'Replacement failed and target was recreated; previous installation preserved at %s\n' \
"$REPO_SCAN_BACKUP" >&2
elif ! move_repo_scan_dir "$REPO_SCAN_BACKUP" "$REPO_SCAN_INSTALL_DIR"; then
REPO_SCAN_KEEP_TMP=1
printf 'Replacement and rollback failed; previous installation preserved at %s\n' \
"$REPO_SCAN_BACKUP" >&2
fi
fi
exit 1
fi
```
> Review the source before installing any agent skill.
Installation completes only the bootstrap. Reload your agent harness, then invoke `repo-scan` again. This ECC pointer installs the external skill but does not run a scan itself.
## Core Capabilities
| Capability | Description |
|---|---|
| **Cross-stack scanning** | C/C++, Java/Android, iOS (OC/Swift), Web (TS/JS/Vue) in one pass |
| **File classification** | Every file tagged as project code, third-party, or build artifact |
| **Library detection** | 50+ known libraries (FFmpeg, Boost, OpenSSL…) with version extraction |
| **Four-level verdicts** | Core Asset / Extract & Merge / Rebuild / Deprecate |
| **HTML reports** | Interactive dark-theme pages with drill-down navigation |
| **Monorepo support** | Hierarchical scanning with summary + sub-project reports |
## Analysis Depth Levels
| Level | Files Read | Use Case |
|---|---|---|
| `fast` | 1-2 per module | Quick inventory of huge directories |
| `standard` | 2-5 per module | Default audit with full dependency + architecture checks |
| `deep` | 5-10 per module | Adds thread safety, memory management, API consistency |
| `full` | All files | Pre-merge comprehensive review |
## How It Works
1. **Classify the repo surface**: enumerate files, then tag each as project code, embedded third-party code, or build artifact.
2. **Detect embedded libraries**: inspect directory names, headers, license files, and version markers to identify bundled dependencies and likely versions.
3. **Score each module**: group files by module or subsystem, then assign one of the four verdicts based on ownership, duplication, and maintenance cost.
4. **Highlight structural risks**: call out dead-weight artifacts, duplicated wrappers, outdated vendored code, and modules that should be extracted, rebuilt, or deprecated.
5. **Produce the report**: return a concise summary plus the interactive HTML output with per-module drill-down so the audit can be reviewed asynchronously.
## Examples
On a 50,000-file C++ monorepo:
- Found FFmpeg 2.x (2015 vintage) still in production
- Discovered the same SDK wrapper duplicated 3 times
- Identified 636 MB of committed Debug/ipch/obj build artifacts
- Classified: 3 MB project code vs 596 MB third-party
## Best Practices
- Start with `standard` depth for first-time audits
- Use `fast` for monorepos with 100+ modules to get a quick inventory
- Run `deep` incrementally on modules flagged for refactoring
- Review the cross-module analysis for duplicate detection across sub-projects
## Links
- [GitHub Repository](https://github.com/haibindev/repo-scan)