Claude Mods: Flipping the Harness Inside Out
Claude Mods enables developer-customizable plugins that reshape the AI agent attention interface
“the harness becomes a platform that other companies build on, with models as the engine”
Latent Space argues that as AI models absorb more harness capabilities into their weights, what remains becomes an 'Attention Interface' — the layer managing human-agent interruption and decision points. Claude Mods is framed as an early, customizable implementation of this concept, letting developers write TypeScript/JavaScript plugins that hook into Claude Code events. The broader thesis — that the harness becomes a platform like the browser, with models as the engine — is a meaningful framing shift for how AI tooling evolves.