[FEATURE] Feature Request: Predictive Inline Code Completion in VS Code Extension

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Feature Request: Predictive Inline Code Completion

Summary

Add real-time predictive/inline code completion (autocomplete) support to the
Claude Code VS Code extension, similar to GitHub Copilot's ghost-text suggestions.

Proposed Solution

Proposed Behavior

• As the user types, Claude suggests inline completions (ghost text) in the editor.
• Pressing Tab (or a configurable key) accepts the suggestion.
• Pressing Escape dismisses it.
• Completions are context-aware, using the current file and open editor context.

Alternative Solutions

_No response_

Priority

High - Significant impact on productivity

Feature Category

Interactive mode (TUI)

Use Case Example

Currently, Claude Code is excellent for multi-file edits and conversational coding
tasks, but lacks keystroke-level inline suggestions as the user types. Developers
often context-switch between Claude Code (for complex tasks) and a separate
autocomplete tool (e.g., Copilot, Tabnine) for inline suggestions. A unified
experience would significantly improve productivity.

Additional Context

Expected UX

Similar to VS Code's existing IntelliSense / GitHub Copilot ghost-text experience,
but powered by Claude.