具体错误示例

/plugin marketplace add milla-jovovich/mempalace

第一次：git clone 超时

Error: Failed to clone marketplace repository: Git clone timed out after 120s

第二次：文件夹已存在但内容不完整

Error: EBUSY: resource busy or locked, rm 'C:\Users\sjlia.claude\plugins\marketplaces\milla-jovovich\mempalace'

TL;DR

To address the Claude Code Plugin Marketplace installation issues, implement a pre-check mechanism, introduce a configurable timeout with retries, and enhance resource management and user experience.

Guidance

1. Implement pre-installation checks: Before executing git clone, check if the target plugin directory exists and handle cases where the plugin is already partially or fully downloaded.
2. Introduce a configurable timeout with retries: Allow users to set a custom timeout via an environment variable (e.g., CLAUDE_CODE_PLUGIN_GIT_TIMEOUT_MS) and implement a retry mechanism (e.g., 2-3 attempts) to handle network timeouts.
3. Enhance resource management: Improve cleanup logic to prevent empty directories and handle cases where downloads fail, causing EBUSY errors.
4. Improve user experience: Display download progress, offer manual installation options upon failure, and preserve partially downloaded files for recovery.

Example

A suggested check logic in shell script:

if [ -d "$PLUGIN_DIR/$PLUGIN_NAME" ]; then
    if [ -d "$PLUGIN_DIR/$PLUGIN_NAME/.git" ]; then
        echo "Plugin already exists. Update? (y/n)"
        read -r response
        if [[ "$response" =~ ^[Yy]$ ]]; then
            cd "$PLUGIN_DIR/$PLUGIN_NAME" && git pull
        else
            exit 0
        fi
    else
        echo "Incomplete installation found. Cleaning up..."
        rm -rf "$PLUGIN_DIR/$PLUGIN_NAME"
    fi
fi

Notes

The provided suggestions aim to address the reported issues but may require further refinement based on the specific implementation details of the Claude Code Plugin Marketplace.

Recommendation

Apply the suggested workarounds, such as setting a longer timeout via CLAUDE_CODE_PLUGIN_GIT_TIMEOUT_MS and using manual installation methods, until a more comprehensive fix is available.