Show HN: Spens sandboxed, observable coding agents

Category: devtools

Tags: ai-agents, sandboxing, observability, opentelemetry, docker, cli-tool

Score: 7.5/10 (Innovation: 7, Technical: 8, Documentation: 8, Utility: 7)

Spens is a CLI tool that runs AI coding agents in sandboxed Docker containers with full observability, network control, and secret injection. It captures every LLM call, tool invocation, HTTP request, and file change for review or OpenTelemetry export, addressing safety and auditability gaps in agent workflows.

Target audience: developers and DevOps engineers running AI coding agents

Repository: https://spens.refwd.ai/

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