feat: add /sync-skills command to bridge Claude Code and OpenCode skills

[zhangxaochen]

Description

Many developers use multiple AI-powered CLI tools such as Claude Code and OpenCode. These tools follow the Agent Skills standard, but each stores skills in different default directories (e.g., ~/.claude/skills/ and ~/.config/opencode/skills/).

Currently, users of Gemini CLI must manually copy or link these expertise-rich directories to ~/.gemini/skills/ to leverage them.

I propose adding a new built-in command /sync-skills that:

1. Automatically discovers skills from Claude Code and OpenCode directories.
2. Safely creates symbolic links in the Gemini skills folder.
3. Automatically avoids conflicts with built-in Gemini extensions.
4. Cleans up broken or stale links.

Motivation

This feature will make Gemini CLI the central hub for AI engineering expertise by allowing users to instantly "import" their existing library of specialized skills from other tools without manual overhead or dependency conflicts.

Proposed Implementation

• Add a new command implementation in src/commands/.
• Use a safe linking strategy that prioritizes official Gemini extensions.
• Provide clear feedback to the user on how many skills were synchronized.

[linisha15]

/assign

[gemini-cli]

👋 @linisha15, thanks for your interest in this issue! We're reserving self-assignment for issues that have been marked with the help wanted label. Feel free to check out our list of issues that need attention.

[zhangxaochen]

/assign

[gemini-cli]

👋 @zhangxaochen, thanks for your interest in this issue! We're reserving self-assignment for issues that have been marked with the help wanted label. Feel free to check out our list of issues that need attention.

[cocosheng-g]

Triage Summary

A maintainer has indicated in the associated PR (#21581) that this feature is not currently desired due to the long-term maintenance burden, preferring that users manually create symbolic links instead. Because this requires maintainer alignment on project scope, it is not categorized as a Help-wanted issue and the associated PR will remain closed.

[Adib234]

Thank you for the suggestion. A maintainer has evaluated this proposal and determined that we will not be adding this specific feature to the core CLI at this time due to the maintenance burden it would introduce. We recommend that users continue to manually create symbolic links for external skill directories if needed. Closing this as out of scope.