Introducing pi-rlm: Swallowing All Tools into a Single Persistent Evaluator

a1zhang · x · 2026-08-08

Inspired by PrimeIntellect, a developer released pi-rlm, a new tool built on Bun and TypeScript. Its core concept is to take over all available tools and consolidate them into a single execute tool that runs code in a persistent evaluator.

Key features include using Bun.$ for the shell, mounting pi's own tools as tools., and calling subagents via a function that returns a handle. Additionally, variables survive across turns, sessions, and even restarts.

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