repo-scan

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 # 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 Classify the repo surface : enumerate files, then tag each as project code, embedded third-party code, or build artifact. Detect embedded libraries : inspect directory names, headers, license files, and version markers to identify bundled dependencies and likely versions. Score each module : group files by module or subsystem, then assign one of the four verdicts based on ownership, duplication, and maintenance cost. Highlight structural risks : call out dead-weight artifacts, duplicated wrappers, outdated vendored code, and modules that should be extracted, rebuilt, or deprecated. 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