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actions

How to create and run agent actions. Actions are the single source of truth for app operations — the agent calls them as tools and frontend code calls them through client hooks. Use when creating a new action, adding an API integration, or wiring up frontend data fetching.

packages/core/src/templates/workspace-core/.agents/skills/actions/SKILL.md

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# Agent Actions

## Rule

Actions in `actions/` are the **single source of truth** for app operations. The agent calls them as tools, the frontend calls them through `useActionQuery` / `useActionMutation`, and the framework owns the HTTP transport behind those hooks — no duplicate `/api/` routes.

Before creating any custom route for app data, check `actions/` and the action table in `AGENTS.md`. An action already exists? Call it directly. Missing? Create or update a `defineAction`. **Stop trigger:** about to add a file under `server/routes/api/` (or middleware to guard one)? Check it against the exception list in *Custom `/api/` Routes* below first — even if you already started the route.

## Keep Actions Deterministic

An action may call a provider API, validate data, and persist records without being an AI feature — keep it deterministic, focused, and independently useful to the agent. Don't put LLM calls or a second model runtime in app actions.

The sanctioned model-backed exception is `@agent-native/core/decisions` for capability-aware classification and scoring, and it returns a result without performing or authorizing the selected action.