Fix code review bugs, add 20 edge case tests

[twokidsCarl]

Summary

• 7 bug fixes from code review: missing return, uninitialized var, missing rescue blocks, exception hierarchy
• 20 new tests (85 total): edge cases for smart routing, history, tab completion, /source

Bug fixes

Bug	Severity	Fix
handle_smart_input missing return	Critical	Added return on handle_llm calls
@saved_input uninitialized	Critical	Init in constructor
InputHandler.completions no rescue	Medium	Wrapped in begin/rescue
handle_tab_completion no rescue	Medium	Added rescue block
eval_ruby misses SystemExit	High	Added to rescue clause
build_right unused width param	Low	Removed param
/source condition too narrow	Medium	Match all error types

Test plan

• 85 TUI tests passing
• CI green

🤖 Generated with Claude Code

Summary by CodeRabbit

发行说明

• 错误修复

  • 增强了代码执行的错误处理，防止特定异常导致应用意外中止
  • 改进了自动完成和源代码查询功能的稳定性，现在能更优雅地处理异常情况
  • 修复了制表符补全过程中可能导致界面崩溃的问题

• 重构

  • 简化了状态栏的内部实现，删除了未使用的参数

• 测试

  • 扩展了测试覆盖范围，包括输入路由、代码求值、历史导航和补全功能

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 85accc4a-4b0d-4658-8a5d-37b4662234ca

📥 Commits

Reviewing files that changed from the base of the PR and between 3d126ac and 54a7106.

📒 Files selected for processing (7)

• lib/claw/tui/agent_executor.rb
• lib/claw/tui/input_handler.rb
• lib/claw/tui/model.rb
• lib/claw/tui/status_bar.rb
• lib/claw/version.rb
• spec/claw/tui/model_spec.rb
• spec/claw/tui/snapshot_spec.rb

---

Walkthrough

此PR改进了TUI的异常处理机制，使eval、补全和源代码查询对异常更具弹性，调整了多个组件的控制流，更新了状态栏方法签名，并扩展了测试覆盖范围，版本号随之更新。

Changes

Cohort / File(s)	Summary
异常处理加强 lib/claw/tui/agent_executor.rb, lib/claw/tui/input_handler.rb	eval_ruby 现在捕获 SystemExit 以防止用户代码调用 exit 时终止执行；input_handler 的补全生成添加了防御性 begin/rescue 块来处理 binding 和 memory 访问的异常。
Model控制流重构 lib/claw/tui/model.rb	初始化时添加 @saved_input 实例变量；handle_slash 的 /source 路径改为匹配任何 :error 类型而非仅限错误消息；handle_smart_input 直接返回 handle_llm 结果；handle_tab_completion 添加异常处理以防TUI崩溃；baseline_methods 采用容错方式初始化。
方法签名更新 lib/claw/tui/status_bar.rb	build_right 方法移除未使用的 width 参数，调用处相应调整。
版本及测试更新 lib/claw/version.rb, spec/claw/tui/model_spec.rb, spec/claw/tui/snapshot_spec.rb	BUILD常数更新至 20260407-008；添加智能输入路由、Ruby求值、输入历史导航、Tab补全、源代码回退、baseline方法检测的单元测试；添加状态栏模型名称、帮助系统消息、滚动提示的快照测试。

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• TUI UX improvements: Ruby-first REPL, layout fixes, new commands #10 — 同时修改了相同的TUI组件（特别是 Claw::TUI::StatusBar#build_right 的参数移除），并涉及 lib/claw/tui/agent_executor.rb 和 model.rb 的改动，存在代码级别的关联。

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/code-review-bugs

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

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