[FEATURE] Contextual skill recommendations

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

When users attempt tasks that could be handled by an existing marketplace skill/plugin, there's no way for Claude Code to suggest that skill. Users must proactively browse the Discover tab to find relevant plugins, which means they often don't know a solution already exists for their exact problem. This leads to users either doing things the hard way, asking Claude to build something from scratch, or never discovering plugins that would significantly improve their workflow.

Proposed Solution

Introduce a context-aware skill discovery mechanism. When Claude detects that a user's request aligns with a skill available in a configured marketplace (but not yet installed), it could surface a brief, non-intrusive hint — for example:

  ❯   There's a plugin available for this: example-plugin@marketplace includes a skill for this task. Would you like to install it?
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### Alternative Solutions

I've tried either manually communicating every update or considered having a meta skill that keeps track of other skills.

### Priority

Medium - Would be very helpful

### Feature Category

Interactive mode (TUI)

### Use Case Example

A user asks Claude to "review my Dockerfile for security issues." A marketplace plugin exists with a skill specifically for container security auditing. Claude surfaces: "The plugin docker-security has a skill for auditing Dockerfiles. Would you like to install it?"

### Additional Context

This is especially relevant for teams and organizations that maintain their own marketplaces with new plugins and skills added frequently. Keeping users informed about new additions through traditional communication channels (announcements, changelogs, docs) is unreliable — people miss messages, forget what's available, or don't connect a new plugin to their current need. The most natural point of discovery is in the tool itself, at the moment the user is trying to do the thing a skill was built for. Claude Code is a daily-use tool, making it the ideal surface for just-in-time plugin discovery rather than relying on users to proactively check for updates or read announcements.