Show HN: Stepgate – AI agents that can't skip steps, in one portable file

Category: ai-ml

Tags: ai-agents, mcp, workflow-automation, yaml, verification

Score: 7.0/10 (Innovation: 7, Technical: 7, Documentation: 8, Utility: 6)

Stepgate is an MCP server that runs AI agents through YAML-defined stepfiles, enforcing step-by-step execution with mechanical gates (JSON Schema, JSONLogic, HTTP verifiers) so agents cannot skip steps or fabricate values. It combines declarative procedure specification with verifiable execution and a hash-chained audit ledger, making agent workflows auditable and reliable.

Target audience: AI engineers, backend developers, devops

Repository: https://github.com/Chaarangan/stepgate · TypeScript · Apache-2.0 · 13 stars

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