[BUG] Desktop 1.2773.0 slash palette omits all user skills and installed plugins

[##](url) Summary

In Claude Desktop 1.2773.0 (bundled Claude Code 2.1.92), the Claude Code tab's / palette shows only schedule plus built-in chat controls (btw, rewind, clear, export). No user skills from ~/.claude/skills/ and no commands from any installed plugin in ~/.claude/plugins/cache/* appear — not even the official Anthropic ones (claude-md-management, code-review, github, figma, etc.).

Repro

1. macOS + Claude Desktop 1.2773.0.
2. Have any standalone user skill at ~/.claude/skills/<name>/SKILL.md with valid frontmatter.
3. Have any official plugin installed (e.g. claude-md-management@claude-plugins-official), visible in ~/.claude/plugins/installed_plugins.json.
4. Open a new Claude Code tab (local session, non-Cowork), type /.

Expected: palette includes the user skill, plus plugin commands (revise-claude-md, etc.).
Actual: palette shows only schedule, btw, rewind, clear, export. (Screenshot to be attached.)

Key observations

• The skills are loaded into the session — the model sees them via the Skill tool system registry, and typing the full name (e.g. /my-skill) dispatches correctly.
• So this is a UI discovery bug, not a backend load failure.
• Process tree confirms Desktop launches ~/Library/Application Support/Claude/claude-code/2.1.92/claude.app/Contents/MacOS/claude with --setting-sources=user,project,local plus 16 --plugin-dir flags covering skills-plugin/* and every ~/.claude/plugins/cache/* directory. Those plugin dirs are passed but their commands never surface in the palette.
• Regression: older Desktop session logs (Claude Code 2.1.78) show user skills were autocompleting and dispatching — the palette was populated. Something changed between 2.1.78 and 2.1.92 / Desktop 1.2773.0.
• Local edits to skills-plugin/.../manifest.json are wiped on restart, suggesting the palette is cloud-allowlisted rather than enumerating the local --plugin-dir flags.

Env

• macOS, Apple Silicon
• Claude Desktop: 1.2773.0
• Bundled Claude Code: 2.1.92
• CLAUDE_CODE_ENTRYPOINT=claude-desktop, CLAUDECODE=1, no CLAUDE_CONFIG_DIR set.

Impact

Users can't discover their own skills or plugin commands from the UI. Workaround is typing the full name, which defeats the purpose and creates confusion that the feature is broken.

<img width="498" height="404" alt="Image" src="https://github.com/user-attachments/assets/1e90dadd-1da0-4e0d-9a90-6ed03c2dcd02" />