feat: native rtk init for all AI agent tools (OpenClaw, NanoClaw, Aider, etc.)

[pszymkowiak]

Context

RTK currently supports rtk init for 8 tools: Claude Code, Copilot (#823), Cursor, Gemini, Codex, Windsurf, Cline, OpenCode. Several other AI coding tools could benefit from native integration.

Proposed tools

Priority 1 (established tools)

• Aider — popular CLI coding assistant, uses .aider.conf.yml or AIDER_* env vars
• Continue.dev — VS Code/JetBrains extension, uses .continue/config.json
• Zed AI — Zed editor built-in assistant, uses settings.json

Priority 2 (emerging tools)

• OpenClaw — already has plugin in openclaw/, needs rtk init --openclaw
• NanoClaw — similar to OpenClaw, needs investigation
• Amp — Sourcegraph coding agent
• Tabnine — code completion with chat
• Codeium / Supermaven — code assistants

Priority 3 (niche/blocked)

• Mistral Vibe — blocked on upstream BeforeToolCallback (feat: add transparent hook support for Mistral Vibe (BeforeTool) #800)
• KiloCode / AntiGravity — PR feat(init): add support for kilocode and antigravity agents #802 open

Implementation pattern

Each tool follows the same pattern:

1. Add flag to Init struct in main.rs (e.g. --openclaw, --aider)
2. Add run_<tool>() function in init.rs
3. Create appropriate config files (hooks, instructions, plugins)
4. Add section in README

Current coverage

Tool	Flag	Status
Claude Code	rtk init -g	Done
Copilot	rtk init --copilot	PR #824
Cursor	rtk init --agent cursor	Done
Gemini	rtk init --gemini	Done
Codex	rtk init --codex	Done
Windsurf	rtk init --agent windsurf	Done
Cline	rtk init --agent cline	Done
OpenCode	rtk init --opencode	Done
OpenClaw	manual plugin install	TODO
NanoClaw	not investigated	TODO
Aider	not supported	TODO
Continue.dev	not supported	TODO
Vibe	blocked upstream	#800