Cloud MCP prompts should not be prefixed with 'claude.ai'

Description

Cloud-hosted MCP prompts (ChEMBL, bioRxiv, Figma, Clinical Trials, ICD-10) show up in the / slash command menu with a claude.ai prefix:

/claude.ai ChEMBL:analyze_compound (MCP)
/claude.ai ChEMBL:compare_drugs (MCP)
/claude.ai bioRxiv:analyze_preprint (MCP)
/claude.ai Figma:create_design_system_... (MCP)

This doesn't follow the standard MCP naming convention where servers are named after the service they provide, not the platform hosting them. Locally configured MCP servers use clean names (/slack:..., /github:...), but Anthropic's own cloud servers get a redundant claude.ai prefix.

Expected

/ChEMBL:analyze_compound (MCP)
/bioRxiv:analyze_preprint (MCP)
/Figma:create_design_system_rules (MCP)

Why it matters

• Adds visual noise to the slash command menu
• Inconsistent with how other MCP servers are named
• The user already knows they're in Claude — the branding is redundant
• Makes the names longer and harder to scan

Environment

• Claude Code (CLI)
• macOS