Feature Request: Persistent upgradeable companion with real-time code/prompt feedback

Summary

The April 1st /buddy feature sparked an idea for a genuinely useful persistent companion system.

Feature Idea

An always-visible companion (sidebar or overlay) that:

• Watches your prompts and code in real-time and offers proactive suggestions ("you forgot error handling", "this prompt could be more specific about the output format")
• Has an upgrade system — starts basic, can be leveled up with specializations like:
• Security reviewer
• Prompt optimizer
• Code quality advisor
• Architecture reviewer
• Persists across sessions with memory of your preferences and patterns
• Non-intrusive — speaks up when it has something useful to say, not on every keystroke

Why This Would Be Useful

The current Wobble companion is fun but passive and context-free. A companion with actual domain knowledge and real-time context awareness would act as a lightweight second reviewer — catching things before you even submit a prompt.

Inspiration

The /buddy April Fools feature (hatch a creature that watches you code) showed there's appetite for this kind of interaction. Making it genuinely productive would be a natural evolution.

Prior Art

• GitHub Copilot Chat sidebar
• JetBrains AI Assistant
• But none of these have the "personality/companion" angle that makes it engaging to interact with

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Submitted via Claude Code