[Feature Request] Custom slash commands missing `ide_opened_file` context tag

Bug Description
When using the Claude Code extension for VSCode with custom slash commands it does not include the ide_opened_file tag in the message. This limits the flexibility of commands

Environment Info

• Platform: darwin
• Terminal: cursor
• Version: 2.1.23
• Feedback ID: 3d1c7ef7-8565-4700-a401-a8ada80fdc54

Version: 2.4.22
VSCode Version: 1.105.1
Commit: 618c607a249dd7fd2ffc662c6531143833bebd40
Date: 2026-01-26T22:51:47.692Z
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Darwin arm64 25.2.0

Errors

[{"error":"Error: ENOENT: no such file or directory, scandir '/Library/Application Support/ClaudeCode/.claude/skills'\n    at readdirSync (unknown)\n    at <anonymous> (/$bunfs/root/claude:12:2063)\n    at iW (/$bunfs/root/claude:11:35715)\n    at readdirSync (/$bunfs/root/claude:12:2024)\n    at wQR (/$bunfs/root/claude:1783:380)\n    at wQR (/$bunfs/root/claude:1783:1350)\n    at <anonymous> (/$bunfs/root/claude:1783:4670)\n    at <anonymous> (/$bunfs/root/claude:1783:5401)\n    at A (/$bunfs/root/claude:11:7259)\n    at Ay8 (/$bunfs/root/claude:4793:4342)","timestamp":"2026-01-29T09:48:14.330Z"},{"error":"Error: ENOENT: no such file or directory, scandir '/Users/mishabredewold/.claude/skills'\n    at readdirSync (unknown)\n    at <anonymous> (/$bunfs/root/claude:12:2063)\n    at iW (/$bunfs/root/claude:11:35715)\n    at readdirSync (/$bunfs/root/claude:12:2024)\n    at wQR (/$bunfs/root/claude:1783:380)\n    at wQR (/$bunfs/root/claude:1783:1350)\n    at <anonymous> (/$bunfs/root/claude:1783:4713)\n    at <anonymous> (/$bunfs/root/claude:1783:5401)\n    at A (/$bunfs/root/claude:11:7259)\n    at Ay8 (/$bunfs/root/claude:4793:4342)","timestamp":"2026-01-29T09:48:14.330Z"},{"error":"AbortError: The operation was aborted.\n    at unknown\n    at abortChildProcess (node:child_process:935:42)\n    at onAbortListener2 (node:child_process:35:24)\n    at abort (unknown)\n    at <anonymous> (/$bunfs/root/claude:3000:209)","timestamp":"2026-01-29T09:48:17.618Z"}]