Developer seeks feedback on AgentGuard, a $9–19/mo regression testing platform for AI agents

Raj_walker · reddit · 2026-11-03

A developer is validating AgentGuard, a lightweight regression-testing SaaS for AI agents. The pitch: small changes to prompts, models, or tool integrations silently break agent behavior (wrong tool calls, loops, sequence violations) in ways unit tests miss. Planned features: test scenarios, automated runs, tool-call/sequence validation, regression detection, version comparison, and GitHub Actions integration. Targeting indie developers and small startups at $9–19/month. The author hasn't started building and is asking about current testing workflows and usage of LangSmith, Langfuse, Braintrust, and Promptfoo.

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