# rust

Generates a typed Rust client crate from a Vovk API schema. It helps set up async reqwest calls and consume JSON Lines streams.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · ★ 57
- Author: finom
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/finom/vovk/tree/HEAD/skills/rust/SKILL.md
- Updated: 2026-10-22
- HTML: https://affpapa.org/en/nevibecode/skills/finom-rust

## What it does

This skill guides assistants in building Rust client crates from `.vovk-schema/` artifacts using `vovk-rust`. It handles standalone crates via the `rs` template with a 2021 edition `Cargo.toml`, or embedded source trees using `rsSrc`. Requests run asynchronously on `tokio` and `reqwest`.

Generated handler names use snake_case, while nested payload types map into Rust module paths. Endpoints with an `iteration` schema expose a pinned boxed `Stream` from the `futures` crate. Without that schema, handlers return plain JSON arrays instead.

Generated crates require an absolute target URL. You must define this origin inside `vovk.config.js` under `clientTemplateDefs.rs.outputConfig.origin`, or the generator prints a warning and forces an `api_root` parameter on every single call. For plain one-off REST requests, skip this generator and hit endpoints directly with `reqwest` or `curl`.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add finom/vovk --skill rust -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/rust/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/rust/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add finom/vovk --skill rust -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/rust/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add finom/vovk --skill rust -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/rust/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install finom/vovk rust
```

2. **Manually: put the files in place**
- File: `.github/skills/rust/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add finom/vovk --skill rust -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/finom/vovk --path skills/rust
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/rust/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add finom/vovk --skill rust -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/finom/vovk/tree/HEAD/skills/rust/SKILL.md

## When to use it
- generate a typed Rust SDK crate from a Vovk API schema
- read JSON Lines streams with `futures::Stream`
- embed the target origin URL into the generated client config
- execute typed RPC procedures with client payload validation

## Example prompts
- Generate a standalone Rust crate for my Vovk API in ./dist_rust
- Add the rs template to composedClient in vovk.config.mjs with our production URL
- Write Rust code to consume a JSON Lines stream using futures::StreamExt

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: a7ce8bd2c8489ff8.

BEGIN THIRD-PARTY FILE a7ce8bd2c8489ff8
````text
---
name: rust
description: The Vovk.ts Rust client — generating a typed Rust crate from a Vovk API with `vovk-rust`, the `rs` / `rsSrc` templates, the generated async call shape using `reqwest` + `serde`, JSON + JSON Lines (futures Stream) consumption, client-side validation, and crates.io publishing. Use whenever the user wants a typed Rust SDK, ongoing Rust integration, or crates.io publishing — phrasings like "generate a Rust crate / SDK", "ship a Rust SDK for my API", "use vovk-rust", "rsSrc template", "rust streaming with reqwest", "publish to crates.io". Does NOT cover controller / procedure authoring → hand off to `procedure` skill. Does NOT cover `vovk bundle` in general → hand off to `bundle` skill. Does NOT cover JSON Lines server-side → hand off to `jsonlines` skill. **Does NOT cover one-off HTTP calls** — Vovk endpoints are plain REST, so `reqwest` / `ureq` / `curl` against `/api/...` is the simpler answer for "I just want to hit my API from a Rust binary / CLI" use cases. Reach for this skill only when the user actually wants generated typed crate code.
---

# Vovk.ts Rust client

`vovk-rust` generates typed Rust crate from same `.vovk-schema/` artifacts driving TS client. Async by default via `reqwest` + `tokio`; streaming via `futures`.

## Install + generate

```bash
npm i -D vovk-rust
```

### Standalone crate

Canonical output dir `./dist_rust` (hello-world convention):

```bash
npx vovk generate --from rs --out ./dist_rust
```

Output:

```
dist_rust/
  src/http_request.rs       # HTTP handling
  src/lib.rs                # RPC functions + types
  src/read_full_schema.rs   # Schema utilities
  src/schema.json           # Vovk schema (compiled into the crate with include_str!)
  Cargo.toml                # edition = "2021"
  README.md
```

### Embedded source

```bash
npx vovk generate --from rsSrc --out ./rust_src
```

## Auto-generate with composed client

```ts
// vovk.config.mjs
const config = {
  composedClient: {
    fromTemplates: ['ts', 'rs'],
  },
};
export default config;
```

**Bake prod API URL** via `clientTemplateDefs.rs.outputConfig.origin` — generated crate uses this by default. Required: crate sends calls to an absolute URL, so without an origin every call needs `api_root`, and `vovk generate` warns. Pattern from hello-world:

```ts
// vovk.config.js
const PROD_ORIGIN = 'https://hello-world.vovk.dev';

const config = {
  composedClient: { fromTemplates: ['ts', 'rs'] },
  clientTemplateDefs: {
    rs: {
      extends: 'rs',
      outputConfig: { origin: PROD_ORIGIN },
      // composedClient: { outDir: './my_other_dir' }, // optional — defaults to ./dist_rust
    },
  },
};
```

Consumers can still override per call via `api_root` arg.

## Generated call shape

Every RPC function async, takes positional args: `body`, `query`, `params`, `headers?`, `api_root?`, `disable_client_validation`.

```rust
pub async fn update_user(
    body: update_user_::body,
    query: update_user_::query,
    params: update_user_::params,
    headers: Option<&HashMap<String, String>>,
    api_root: Option<&str>,
    disable_client_validation: bool,
) -> Result<update_user_::output, HttpException>
```
````
END THIRD-PARTY FILE a7ce8bd2c8489ff8

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