core0-io

Nio — AI skill for Claude Code

AI community

Execution assurance agent guard and observability for autonomous AI operating in production.

How to install Nio

This entry records only its repository, not the path inside it, so there is no exact command to give. Open core0-io/nio and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Nio does

Execution assurance agent guard and observability for autonomous AI operating in production.

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README

Execution assurance agent guard and observability for autonomous AI agents.

Real-time evaluation of every agent action before it executes — built for agents operating in production.
Built-in collector that captures every tool call as OpenTelemetry metrics and traces.
Works with Claude Code, Codex CLI, OpenClaw, Hermes, Pi, and opencode. More frameworks coming.
Built by Core0 — execution assurance for production AI agents.

→ View the live Execution Pipeline diagram

[![Agent Skills](https://img.shields.io/badge/Agent_Skills-compatible-purple.svg)](https://agentskills.io)

At a glance

What it does: Nio hooks into your agent platform (Claude Code, Codex CLI, OpenClaw, Hermes, Pi, opencode) and evaluates each tool call through a Phase 0–6 pipeline before it runs — allow, deny, or confirm — with an optional OTEL collector and local audit log.
Config: Policy lives in ~/.nio/config.yaml (or $NIO_HOME/config.yaml). Audit events append to ~/.nio/audit.jsonl by default.

Architecture at a glance

Hook events feed the **Collector** (OTEL + local audit) and the **Guard** (real-time Phases 0–6 + on-demand static/behavioural/LLM engines):

┌─────────────────────────────────────────────────────────────────────┐
│                              Nio                                    │
│                                                                     │
│  ┌──────────────────────────┐    ┌───────────────────────────────┐  │
│  │       Collector          │    │            Guard              │  │
│  │                          │    │                               │  │
│  │  Hook events             │    │  ┌─────────────────────────┐  │  │
│  │  → metrics               │