Governance proxy for MCP: block or hold AI agent tool calls on their arguments, route approvals with the arguments shown, enforce rules the model cannot argue with, require prerequisites, cap cumulative spend across tools and servers, and audit every call. No changes to agent code or MCP servers.
Latest release v0.16.0 · 19 Oct 2026
2 files for Claude Code, Codex and OpenCode: helio, helio AGENTS.md — 6,311 tokens loaded in every session.
AGENTS.md A 6,311 tok .claude/settings.json A — These files are gethelio/helio's own configuration — they tell Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.