PORTAL BY SPOTIFY CUT MY CLAUDE CODE TOKEN USAGE BY 90%

Summary from the TLDR Dev newsletter

Spotify routed large file reads and predictable code generation from Claude Code to cheaper Gemini 2.5 Flash workers through Portal modes and a Claude Code plugin. Hooks enforce delegation for files above a size threshold, producing about 90% mean token savings in four Java monorepo scenarios while keeping debugging, architecture, and editing with the frontier model.