[Bug] Claude Code does not support Opus 4.8 and Fable models

Bug Description
I didnt get opus 4.8 and fable Also

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.114
• Feedback ID: 856a484f-a3ad-496c-893d-3a0f24255c9c

Errors

[{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at GDH (/$bunfs/root/src/entrypoints/cli.js:2751:30115)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-06-10T06:34:13.994Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at GDH (/$bunfs/root/src/entrypoints/cli.js:2751:30115)\n    at async G (/$bunfs/root/src/entrypoints/cli.js:6136:11023)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-06-10T06:34:15.724Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at GDH (/$bunfs/root/src/entrypoints/cli.js:2751:30115)\n    at async k (/$bunfs/root/src/entrypoints/cli.js:6136:11830)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-06-10T06:34:15.726Z"},{"error":"eEH: Failed to install new version of claude:  npm error code ENOTEMPTY\nnpm error syscall rename\nnpm error path /opt/homebrew/lib/node_modules/@anthropic-ai/claude-code\nnpm error dest /opt/homebrew/lib/node_modules/@anthropic-ai/.claude-code-2DTsDk1V\nnpm error errno -66\nnpm error ENOTEMPTY: directory not empty, rename '/opt/homebrew/lib/node_modules/@anthropic-ai/claude-code' -> '/opt/homebrew/lib/node_modules/@anthropic-ai/.claude-code-2DTsDk1V'\nnpm error A complete log of this run can be found in: /Users/theodiamant/.npm/_logs/2026-06-10T06_34_20_603Z-debug-0.log\n    at bq_ (/$bunfs/root/src/entrypoints/cli.js:2748:2095)\n    at async <anonymous> (/$bunfs/root/src/entrypoints/cli.js:8272:10754)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-06-10T06:34:21.473Z"}]