feat(skills): 新增 CodeRabbit CLI skill

[DCjanus]

Why

• 为仓库新增一个专门指导 AI agent 使用 coderabbit review 的 skill。
• 让 CodeRabbit CLI 的使用约定、常用命令和结果整理方式有统一入口。

What

• 新增 skills/coderabbit-cli/SKILL.md。
• 收敛为精简结构，包含使用约定、常用命令和参考。
• 明确待处理项应使用数字编号，便于用户按编号指定后续处理项。

Testing

• 已执行 coderabbit --help。
• 已执行 coderabbit review --help。

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: fce4a152-c407-4c9a-a72e-aaae0de9a7eb

📥 Commits

Reviewing files that changed from the base of the PR and between 501c1d5 and e230a92.

📒 Files selected for processing (1)

• skills/coderabbit-cli/SKILL.md

---

📝 Walkthrough

Summary by CodeRabbit

• Documentation
  • Added a user guide for the CodeRabbit CLI covering how to pick diff ranges, when to use --prompt-only (and --plain), commands for reviewing uncommitted changes or specific base revisions, environment/configuration tips, a recommended review workflow, pacing and reporting advice, and common usage conventions for AI-assisted reviews.

Walkthrough

A new guidance document for the CodeRabbit CLI was added at skills/coderabbit-cli/SKILL.md, documenting how to use the CLI for code reviews: selecting diff ranges, preferring --prompt-only, distinctions between AI-agent vs interactive TUI usage, default prompt emission, when to use --plain, limiting review scope, pacing/reporting, workflow, and common commands.

Changes

Cohort / File(s)	Summary
CodeRabbit CLI Guidance skills/coderabbit-cli/SKILL.md	Added a new SKILL.md providing CLI review guidance: selecting diff ranges, recommending --prompt-only, AI-agent vs TUI conventions, --plain usage, scope limits for reviews, pacing and reporting guidelines, workflow steps, and common commands/examples.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the main change: adding a new CodeRabbit CLI skill documentation file to the skills directory.
Description check	✅ Passed	The description is directly related to the changeset, explaining why the skill was added, what was implemented, and how it was tested.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feat/coderabbit-cli-skill

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[coderabbitai]

Actionable comments posted: 1

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 0008d7e9-1f8d-4c72-a3c5-171262dd8f08

📥 Commits

Reviewing files that changed from the base of the PR and between 1ec0cbd and 6da632f.

📒 Files selected for processing (1)

• skills/coderabbit-cli/SKILL.md