A verifiable self-improvement loop for agent harnesses. Freeze the model. Evolve the harness. Promote only what proves lift.

Dependency-free LoopOps client for both ports: emit telemetry as you work, read the improvement loop back.

The AI that upgrades itself. Recursive self-improvement loop for any open-source project.

Meta-skill and self-improvement loop for pi — mines session history for repeated workflows, proposes new skills, and tracks skill health.

Local-first hierarchical memory brain for AI coding agents — auto-capture, LLM consolidation into beliefs, hybrid retrieval, per-prompt injection, a living Neural Universe monitor, and a daily self-improvement loop. Works with Claude Code, Codex, and any

CodexLoop — iterative improvement loop that drives OpenAI Codex as a multi-role critic (evaluate → suggest → rank → apply → validate → record).

Tracebound CLI: deterministic primitives for the Tracebound agent-improvement loop.

Bridge that lets Claude Code call OpenAI Codex CLI as an MCP sub-agent. Installable Skills + optional isolated review Agent, a continuous-improvement loop with optional PostToolUse hook auto-logging, and a persistent thread catalog. Local-only telemetry,

Matrix — Agentic OS for OpenCode. Personalizable, communicating, self-improving, resilient.

Close the eval-to-improvement loop for promptfoo. Automatically evaluate, identify low-scoring prompts, rewrite with any LLM, and re-evaluate.

Skill Refiner — the eval-guided SKILL.md improvement loop, delivered as a thin wrapper over the published @intentsolutions/refiner CLI with a 3-layer cost-tiered hook architecture (sinker/line/hook)

A shim for the setImmediate efficient script yielding API

An evented streaming XML parser in JavaScript

High-priority task queue for Node.js and browsers

JavaScript Performance Monitor

FTA (Fast TypeScript Analyzer) is a super-fast TypeScript static analysis tool written in Rust

High-priority task queue for Node.js and browsers

Run a list of functions in order in a given object context. The functions can be callback-taking or promise-returning.

C function to get the current libuv event loop for N-API

fast, tiny `queueMicrotask` shim for modern engines