safe-action-advanced
Use when working with bind arguments, metadata schemas, framework errors (redirect/notFound/forbidden/unauthorized), type inference utilities (InferSafeActionFnInput/Result), or server-level action callbacks
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/next-safe-action/skills --skill safe-action-advanced- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads safe-action-advanced automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
next-safe-action Advanced Features
Overview
| Feature | Use Case |
|---|---|
| Bind arguments | Pass extra args to actions via .bind() (e.g., resource IDs) |
| Metadata | Attach typed metadata to actions for use in middleware |
| Framework errors | Handle redirect, notFound, forbidden, unauthorized in actions |
| Type utilities | Infer types from action functions and middleware |
Server-Level Action Callbacks
The second argument to .action() accepts callbacks that run on the server (not client-side hooks):
export const createPost = authActionClient
.inputSchema(schema)
.action(
async ({ parsedInput, ctx }) => {
const post = await db.post.create(parsedInput);
return post;
},
{
onSuccess: async ({ data, parsedInput, ctx, metadata, clientInput }) => {
// Runs on the server after successful execution
await invalidateCache("posts");
},
onError: async ({ error, metadata, ctx, clientInput, bindArgsClientInputs }) => {
// error: { serverError?, validationErrors? }
await logError(error);
},
onSettled: async ({ result }) => {
// Always runs
await recordMetrics(result);
},
onNavigation: async ({ navigationKind }) => {
// Runs when a framework error (redirect, notFound, etc.) occurs
console.log("Navigation:", navigationKind);
},
}
);
These are distinct from hook callbacks (useAction({ onSuccess })) — server callbacks run in the Node.js runtime, hook callbacks run in the browser.
throwServerError
Re-throw server errors instead of returning them as result.serverError:
export const myAction = actionClient
.inputSchema(schema)
.action(serverCodeFn, {
throwServerError: true,
// The handled server error (return of handleServerError) is thrown
});
Don't confuse this with returnServerError(): throwServerError throws the handled error (post-handleServerError) instead of returning it, while returnServerError(payload) returns a typed expected error in result.serverError, bypassing handleServerError entirely (see the safe-action-client skill's error-handling doc).
FAQ
What does the safe-action-advanced skill do?
Use when working with bind arguments, metadata schemas, framework errors (redirect/notFound/forbidden/unauthorized), type inference utilities (InferSafeActionFnInput/Result), or server-level action callbacks
How do I install safe-action-advanced?
Run npx skills add https://github.com/next-safe-action/skills --skill safe-action-advanced in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/safe-action-advanced/ (personal) or .claude/skills/safe-action-advanced/ (project).
Which AI agents can use safe-action-advanced?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is safe-action-advanced safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains safe-action-advanced?
It is published by next-safe-action in next-safe-action/skills. It has 1,210 recorded installs.
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