nexum

nexum is a Claude Code plugin that cuts context tokens and model cost during your sessions. It works through three optimization pillars: context-savings hooks that automatically truncate large tool outputs, deduplicate repeated results, and block context-blowing scans; a cost-driven planner and executor that structures work as steps with contracts and scope guards, routing each step to the right model tier (Haiku, Sonnet, or Opus) based on complexity; and lifecycle and hygiene guards that enforce per-session intent continuity, recommend and maintain ignore files, and prevent unscoped recursive searches.

Get started

• Install nexum — add the marketplace and enable the plugin in two commands.
• Commands reference — what /nx-plan, /nx-build, /nx-audit, /nx-status, /nx-save, and /nx-load do and when to use them.