Agent skill

Openapi Typescript

Type-safe OpenAPI consumption in TypeScript using openapi-typescript and openapi-fetch.

AGPL-3.0Auto-check passedBackend & APIs

Install Openapi Typescript

skills CLI

$ npx skills add getopenpost/openpost --skill openapi-typescript -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install getopenpost/openpost openapi-typescript --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/getopenpost/openpost.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/openapi-typescript .claude/skills/openapi-typescript && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "openapi-typescript" agent skill from https://github.com/getopenpost/openpost/tree/main/.agents/skills/openapi-typescript into .claude/skills/openapi-typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "openapi-typescript", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/getopenpost/openpost/tree/main/.agents/skills/openapi-typescript

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add getopenpost/openpost --skill openapi-typescript -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install getopenpost/openpost openapi-typescript --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/getopenpost/openpost.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/openapi-typescript .agents/skills/openapi-typescript && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "openapi-typescript" agent skill from https://github.com/getopenpost/openpost/tree/main/.agents/skills/openapi-typescript into .agents/skills/openapi-typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "openapi-typescript", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add getopenpost/openpost --skill openapi-typescript -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install getopenpost/openpost openapi-typescript --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/getopenpost/openpost.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/openapi-typescript .cursor/skills/openapi-typescript && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "openapi-typescript" agent skill from https://github.com/getopenpost/openpost/tree/main/.agents/skills/openapi-typescript into .cursor/skills/openapi-typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "openapi-typescript", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/getopenpost/openpost.git --path .agents/skills/openapi-typescript

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add getopenpost/openpost --skill openapi-typescript -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install getopenpost/openpost openapi-typescript --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/getopenpost/openpost.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/openapi-typescript .gemini/skills/openapi-typescript && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "openapi-typescript" agent skill from https://github.com/getopenpost/openpost/tree/main/.agents/skills/openapi-typescript into .gemini/skills/openapi-typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "openapi-typescript", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install getopenpost/openpost openapi-typescript

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add getopenpost/openpost --skill openapi-typescript -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/getopenpost/openpost.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/openapi-typescript .github/skills/openapi-typescript && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "openapi-typescript" agent skill from https://github.com/getopenpost/openpost/tree/main/.agents/skills/openapi-typescript into .github/skills/openapi-typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "openapi-typescript", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add getopenpost/openpost --skill openapi-typescript -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install getopenpost/openpost openapi-typescript --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/getopenpost/openpost.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/openapi-typescript .opencode/skills/openapi-typescript && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "openapi-typescript" agent skill from https://github.com/getopenpost/openpost/tree/main/.agents/skills/openapi-typescript into .opencode/skills/openapi-typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "openapi-typescript", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: openapi-typescript
GitHub stars: 653
Token cost: ~887 tokens
SKILL.md length: 133 words
Files: 1
Skills in repo: 7
Repo updated: Oct 6, 2026
First seen: Oct 7, 2026
Licence: AGPL-3.0

At a glance

Type-safe OpenAPI consumption in TypeScript using openapi-typescript and openapi-fetch.

Works in 5 steps: Backend defines types via Huma →… → Frontend fetches spec from /openapi.json → openapi-typescript generates types.d.ts → …
Tasks that involve OpenAPI specifications
SKILL.md covers Type Generation, openapi-fetch Client, Auth Middleware and Re-exporting Schema Types, plus 5 more sections
Calls npx

What it does

Openapi Typescript is an agent skill from getopenpost/openpost. Type-safe OpenAPI consumption in TypeScript using openapi-typescript and openapi-fetch.

Its SKILL.md is about 890 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Backend & APIs, covering OpenAPI specifications. It works with OpenAPI, TypeScript and Svelte. The repository describes itself as: Create, adapt, schedule, and track social posts. Open-source, hosted or self-hosted. The licence is AGPL-3.0.

When your agent uses it

Tasks that involve OpenAPI specifications

Example prompts

“/openapi-typescript”

Requirements

Node.js

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

Backend defines types via Huma → auto-generates OpenAPI spec
Frontend fetches spec from /openapi.json
openapi-typescript generates types.d.ts
openapi-fetch provides fully typed client
Both sides stay in sync — type mismatches caught at compile time

What it can do on your machine

Read from SKILL.md and the folder at commit ed8ad44. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- npx
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npx, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Openapi Typescript loads about 887 tokens when it runs. Until then it costs about 27 tokens; SKILL.md has 133 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~27
When it runs · the whole SKILL.md, loaded when a task matches: ~887

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from getopenpost/openpost at commit ed8ad44, republished under its AGPL-3.0 licence (© getopenpost). 133 words, ~887 tokens.

Download SKILL.mdSave it as .claude/skills/openapi-typescript/SKILL.md (or your agent's skills folder).

name: openapi-typescript
description: Type-safe OpenAPI consumption in TypeScript using openapi-typescript and openapi-fetch.
version: 1.0.0
user-invocable: false

openapi-typescript + openapi-fetch

Type-safe OpenAPI consumption in TypeScript. Generates runtime-free types from OpenAPI specs and provides a typed fetch client.

Type Generation

bash

# Generate types from local spec
npx openapi-typescript openapi.json -o src/lib/api/types.d.ts

# Generate from running server
npx openapi-typescript http://localhost:8080/openapi.json -o src/lib/api/types.d.ts

# Check if types are up-to-date (CI)
npx openapi-typescript openapi.json -o src/lib/api/types.d.ts --check

openapi-fetch Client

typescript

import createClient from "openapi-fetch";
import type { paths } from "./types";

const client = createClient<paths>({ baseUrl: "/api/v1" });

// GET with query params
const { data, error } = await client.GET("/posts", {
  params: { query: { workspace_id: "123" } },
});

// POST with body
const { data, error } = await client.POST("/posts", {
  body: { workspace_id: "123", content: "Hello", social_account_ids: [] },
});

// Path params
const { data } = await client.GET("/accounts/{platform}/auth-url", {
  params: {
    path: { platform: "x" },
    query: { workspace_id: "123" },
  },
});

Auth Middleware

typescript

import createClient, { type Middleware } from "openapi-fetch";

const client = createClient<paths>({ baseUrl: "/api/v1" });

client.use({
  async onRequest({ request }) {
    const token = localStorage.getItem("token");
    if (token) {
      request.headers.set("Authorization", `Bearer ${token}`);
    }
    return request;
  },
});

Re-exporting Schema Types

typescript

// In client.ts
import type { paths, components } from "./types";

export type User = components["schemas"]["UserProfile"];
export type Workspace = components["schemas"]["WorkspaceResp"];
export type Post = components["schemas"]["PostResponse"];

Error Handling

Huma returns RFC 9457 Problem Details:

typescript

const { data, error } = await client.POST("/auth/login", {
  body: { email, password },
});
if (error) {
  // error is typed based on response schemas
  console.error(error.detail); // human-readable message
  console.error(error.status); // HTTP status code
  console.error(error.errors); // validation details
}

Svelte Integration

svelte

<script lang="ts">
    import { client, type Workspace } from '$lib/api/client';

    let workspaces = $state<Workspace[]>([]);

    async function load() {
        const { data, error } = await client.GET('/workspaces');
        if (!error && data) {
            workspaces = data;
        }
    }
</script>

Workflow

Backend defines types via Huma → auto-generates OpenAPI spec
Frontend fetches spec from /openapi.json
openapi-typescript generates types.d.ts
openapi-fetch provides fully typed client
Both sides stay in sync — type mismatches caught at compile time

Scripts

json

{
  "scripts": {
    "generate:types": "openapi-typescript openapi.json -o src/lib/api/types.d.ts"
  }
}

Gotchas

Fields named Status in OpenAPI schemas get treated as HTTP status codes — avoid on response body structs
$schema field appears in generated types (Huma JSON Schema metadata) — ignore it in client code
0001-01-01T00:00:00Z is Go's zero time — handle in frontend date formatting
openapi-typescript requires OpenAPI 3.0 or 3.1 (Huma generates 3.1)

Files

Just SKILL.md in .agents/skills/openapi-typescript of getopenpost/openpost.

Open the folder on GitHubat commit ed8ad44

Compare with similar skills

Openapi Typescript next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Openapi Typescript compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Openapi Typescript this skillgetopenpost/openpost	653	—	~887	Automated safety check: Pass	AGPL-3.0	yesterday
OpenAPI to MCP Servermcp-use/mcp-use	11k	—	~5.2k	Automated safety check: Pass	Apache-2.0	today
Api2clialexknowshtml/api2cli	455	—	~2.9k	Automated safety check: Pass	MIT	7 mo ago
Projectsamchon/nestia	2.2k	—	~3k	Automated safety check: Pass	MIT	today
API ContractChenyCHENYU/Robot_Admin	1k	—	~1.9k	Automated safety check: Pass	MIT	yesterday
Typescriptscalar/scalar	16k	—	~1.1k	Automated safety check: Pass	MIT	today

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Questions about Openapi Typescript

What does Openapi Typescript do?

Type-safe OpenAPI consumption in TypeScript using openapi-typescript and openapi-fetch. Openapi Typescript is an agent skill from getopenpost/openpost. Type-safe OpenAPI consumption in TypeScript using openapi-typescript and openapi-fetch.

When should I use Openapi Typescript?

Openapi Typescript fits situations like: tasks that involve OpenAPI specifications.

How do I install Openapi Typescript in Claude Code?

Run `npx skills add getopenpost/openpost --skill openapi-typescript -a claude-code`. Or copy the skill folder (.agents/skills/openapi-typescript in getopenpost/openpost) into .claude/skills/openapi-typescript in your project. Claude Code loads it when a task matches its description.

How do I install Openapi Typescript in Codex?

Run `npx skills add getopenpost/openpost --skill openapi-typescript -a codex`. Or copy the skill folder (.agents/skills/openapi-typescript in getopenpost/openpost) into .agents/skills/openapi-typescript in your project. Codex loads it when a task matches its description.

Can I use Openapi Typescript in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add getopenpost/openpost --skill openapi-typescript -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/openapi-typescript, .gemini/skills/openapi-typescript, .github/skills/openapi-typescript and .opencode/skills/openapi-typescript in your project.

What does Openapi Typescript need to run?

Going by SKILL.md and its folder, Openapi Typescript needs the command-line tools its instructions call (npx). Our summary lists: Node.js.

Does Openapi Typescript access the network?

SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Openapi Typescript safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Openapi Typescript use?

Openapi Typescript is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Openapi Typescript use?

About 887 tokens (SKILL.md is roughly 3.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Openapi Typescript?

Skills that share tags, products or a category with Openapi Typescript: OpenAPI to MCP Server (mcp-use/mcp-use, 11k stars), Api2cli (alexknowshtml/api2cli, 455 stars), Project (samchon/nestia, 2.2k stars) and API Contract (ChenyCHENYU/Robot_Admin, 1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Openapi Typescript?

getopenpost (a GitHub organization) maintains it in getopenpost/openpost, which has 653 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on October 6, 2026.

Source: getopenpost/openpost on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Openapi Typescript

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

openapi-typescript + openapi-fetch

Type Generation

openapi-fetch Client

Auth Middleware

Re-exporting Schema Types

Error Handling

Svelte Integration

Workflow

Scripts

Gotchas

Files

Compare with similar skills

Similar skills

More from getopenpost/openpost

Related

Questions about Openapi Typescript