What this is
Action agents (app_kind='userscript_ai') sit between a plain userscript and a full autonomous AI agent — they perform tasks on a site using AI assistance, but within a more scripted, bounded scope than a fully autonomous agent with its own system prompt and monthly limit.
How it works
This is a genuinely useful middle tier: you get AI assistance for a specific, well-defined task (parsing unstructured content on a page, deciding between a few known actions) without building and maintaining a full agent definition — closer to a userscript with an AI helper function than an autonomous agent in its own right.
Holding BOT for this path
Action agents draw on AI capacity in a smaller, more bounded way than a full AI Agent, but still tap into the same metered system — expect the BOT-holding requirement here to scale with actual usage, the same principle as the other AI-backed categories, just at a smaller typical footprint.
Related paths in Apps & Agents