Agent skill

Gemini API Dev

by benjaminasterA in benjaminasterA/antigravity-awesome-skills

A skill your agent uses when building applications with Gemini models, Gemini API, working with multimodal content (text, images, audio, video), implementing function calling, using structured…

MITAuto-check passedAI & LLM Engineering

Install Gemini API Dev

skills CLI

$ npx skills add benjaminasterA/antigravity-awesome-skills --skill gemini-api-dev -a claude-code

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

GitHub CLI

$ gh skill install benjaminasterA/antigravity-awesome-skills gemini-api-dev --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/benjaminasterA/antigravity-awesome-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/gemini-api-dev .claude/skills/gemini-api-dev && 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 "gemini-api-dev" agent skill from https://github.com/benjaminasterA/antigravity-awesome-skills/tree/main/skills/gemini-api-dev into .claude/skills/gemini-api-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gemini-api-dev", 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/benjaminasterA/antigravity-awesome-skills/tree/main/skills/gemini-api-dev

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 benjaminasterA/antigravity-awesome-skills --skill gemini-api-dev -a codex

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

GitHub CLI

$ gh skill install benjaminasterA/antigravity-awesome-skills gemini-api-dev --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/benjaminasterA/antigravity-awesome-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/gemini-api-dev .agents/skills/gemini-api-dev && 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 "gemini-api-dev" agent skill from https://github.com/benjaminasterA/antigravity-awesome-skills/tree/main/skills/gemini-api-dev into .agents/skills/gemini-api-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gemini-api-dev", 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 benjaminasterA/antigravity-awesome-skills --skill gemini-api-dev -a cursor

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

GitHub CLI

$ gh skill install benjaminasterA/antigravity-awesome-skills gemini-api-dev --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/benjaminasterA/antigravity-awesome-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/gemini-api-dev .cursor/skills/gemini-api-dev && 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 "gemini-api-dev" agent skill from https://github.com/benjaminasterA/antigravity-awesome-skills/tree/main/skills/gemini-api-dev into .cursor/skills/gemini-api-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gemini-api-dev", 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/benjaminasterA/antigravity-awesome-skills.git --path skills/gemini-api-dev

--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 benjaminasterA/antigravity-awesome-skills --skill gemini-api-dev -a gemini-cli

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

GitHub CLI

$ gh skill install benjaminasterA/antigravity-awesome-skills gemini-api-dev --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/benjaminasterA/antigravity-awesome-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/gemini-api-dev .gemini/skills/gemini-api-dev && 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 "gemini-api-dev" agent skill from https://github.com/benjaminasterA/antigravity-awesome-skills/tree/main/skills/gemini-api-dev into .gemini/skills/gemini-api-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gemini-api-dev", 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 benjaminasterA/antigravity-awesome-skills gemini-api-dev

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 benjaminasterA/antigravity-awesome-skills --skill gemini-api-dev -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/benjaminasterA/antigravity-awesome-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/gemini-api-dev .github/skills/gemini-api-dev && 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 "gemini-api-dev" agent skill from https://github.com/benjaminasterA/antigravity-awesome-skills/tree/main/skills/gemini-api-dev into .github/skills/gemini-api-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gemini-api-dev", 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 benjaminasterA/antigravity-awesome-skills --skill gemini-api-dev -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 benjaminasterA/antigravity-awesome-skills gemini-api-dev --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/benjaminasterA/antigravity-awesome-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/gemini-api-dev .opencode/skills/gemini-api-dev && 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 "gemini-api-dev" agent skill from https://github.com/benjaminasterA/antigravity-awesome-skills/tree/main/skills/gemini-api-dev into .opencode/skills/gemini-api-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gemini-api-dev", 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: gemini-api-dev
GitHub stars: 372
Used in: 1 other repo
Token cost: ~1.2k tokens
SKILL.md length: 361 words
Files: 1
Skills in repo: 17
Repo updated: Oct 8, 2026
First seen: Oct 9, 2026
Licence: MIT

At a glance

A skill your agent uses when building applications with Gemini models, Gemini API, working with multimodal content (text, images, audio, video), implementing function calling, using structured…

Works in 2 steps: Fetch llms.txt to discover available… → Fetch specific pages (e.g.,…
Building applications with Gemini models
SKILL.md covers Overview, Current Gemini Models, SDKs and Quick Start, plus 3 more sections
Calls pip, npm and go; reaches ai.google.dev and generativelanguage.googleapis.com

What it does

Gemini API Dev is an agent skill from benjaminasterA/antigravity-awesome-skills. Use this skill when building applications with Gemini models, Gemini API, working with multimodal content (text, images, audio, video), implementing function calling, using structured outputs, or n...

Its SKILL.md is about 1.2k 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 AI & LLM Engineering, covering LLM API integration and Structured output and tool calling. It works with Google Gemini, Python and Go. The repository describes itself as: antigravity-awesome-skills. The licence is MIT.

When your agent uses it

Building applications with Gemini models
Working with multimodal content (text
Implementing function calling
Using structured outputs

Example prompts

“/gemini-api-dev”

Requirements

Python 3
Node.js

Workflow steps

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

Fetch llms.txt to discover available documentation pages
Fetch specific pages (e.g., https://ai.google.dev/gemini-api/docs/function-calling.md.txt)

What it can do on your machine

Read from SKILL.md and the folder at commit 0dcad8a. 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:
- pip
- npm
- go
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
- ai.google.dev
- generativelanguage.googleapis.com
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

Gemini API Dev loads about 1.2k tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 361 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~54
When it runs · the whole SKILL.md, loaded when a task matches: ~1.2k

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 benjaminasterA/antigravity-awesome-skills at commit 0dcad8a, republished under its MIT licence (© benjaminasterA). 361 words, ~1,226 tokens.

Download SKILL.mdSave it as .claude/skills/gemini-api-dev/SKILL.md (or your agent's skills folder).

name: gemini-api-dev
description: Use this skill when building applications with Gemini models, Gemini API, working with multimodal content (text, images, audio, video), implementing function calling, using structured outputs, or n...
risk: unknown
source: community

Gemini API Development Skill

Overview

The Gemini API provides access to Google's most advanced AI models. Key capabilities include:

Text generation - Chat, completion, summarization
Multimodal understanding - Process images, audio, video, and documents
Function calling - Let the model invoke your functions
Structured output - Generate valid JSON matching your schema
Code execution - Run Python code in a sandboxed environment
Context caching - Cache large contexts for efficiency
Embeddings - Generate text embeddings for semantic search

Current Gemini Models

gemini-3-pro-preview: 1M tokens, complex reasoning, coding, research
gemini-3-flash-preview: 1M tokens, fast, balanced performance, multimodal
gemini-3-pro-image-preview: 65k / 32k tokens, image generation and editing

[!IMPORTANT] Models like gemini-2.5-*, gemini-2.0-*, gemini-1.5-* are legacy and deprecated. Use the new models above. Your knowledge is outdated.

SDKs

Python: google-genai install with pip install google-genai
JavaScript/TypeScript: @google/genai install with npm install @google/genai
Go: google.golang.org/genai install with go get google.golang.org/genai

[!WARNING] Legacy SDKs google-generativeai (Python) and @google/generative-ai (JS) are deprecated. Migrate to the new SDKs above urgently by following the Migration Guide.

Quick Start

Python

python

from google import genai

client = genai.Client()
response = client.models.generate_content(
    model="gemini-3-flash-preview",
    contents="Explain quantum computing"
)
print(response.text)

JavaScript/TypeScript

typescript

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});
const response = await ai.models.generateContent({
  model: "gemini-3-flash-preview",
  contents: "Explain quantum computing"
});
console.log(response.text);

Go

package main

import (
	"context"
	"fmt"
	"log"
	"google.golang.org/genai"
)

func main() {
	ctx := context.Background()
	client, err := genai.NewClient(ctx, nil)
	if err != nil {
		log.Fatal(err)
	}

	resp, err := client.Models.GenerateContent(ctx, "gemini-3-flash-preview", genai.Text("Explain quantum computing"), nil)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println(resp.Text)
}

API spec (source of truth)

Always use the latest REST API discovery spec as the source of truth for API definitions (request/response schemas, parameters, methods). Fetch the spec when implementing or debugging API integration:

v1beta (default): https://generativelanguage.googleapis.com/$discovery/rest?version=v1beta
Use this unless the integration is explicitly pinned to v1. The official SDKs (google-genai, @google/genai, google.golang.org/genai) target v1beta.
v1: https://generativelanguage.googleapis.com/$discovery/rest?version=v1
Use only when the integration is specifically set to v1.

When in doubt, use v1beta. Refer to the spec for exact field names, types, and supported operations.

Show full SKILL.md (113 more words)Show less

How to use the Gemini API

For detailed API documentation, fetch from the official docs index:

llms.txt URL: https://ai.google.dev/gemini-api/docs/llms.txt

This index contains links to all documentation pages in .md.txt format. Use web fetch tools to:

Fetch llms.txt to discover available documentation pages
Fetch specific pages (e.g., https://ai.google.dev/gemini-api/docs/function-calling.md.txt)

Key Documentation Pages

[!IMPORTANT] Those are not all the documentation pages. Use the llms.txt index to discover available documentation pages

When to Use

This skill is applicable to execute the workflow or actions described in the overview.

Files

Just SKILL.md in skills/gemini-api-dev of benjaminasterA/antigravity-awesome-skills.

Open the folder on GitHubat commit 0dcad8a

Used in 1 other repository

We found 6 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in benjaminasterA/antigravity-awesome-skills, which our catalogue first saw on October 9, 2026.

henryalouf/ruflow.agents/skills/gemini-api-dev .agents/skills/antigravity-awesome-skills/skills/gemini-api-dev+4 more

Compare with similar skills

Gemini API Dev 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.

Gemini API Dev compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Gemini API Dev this skillbenjaminasterA/antigravity-awesome-skills	372	1 repos	~1.2k	Automated safety check: Pass	MIT	yesterday
Gemini API DevAyuilos/Miffan	208	—	~1.4k	Automated safety check: Pass	AGPL-3.0	today
Gemini API DevJetBrains/skills	366	—	~1.6k	Automated safety check: Pass	None	3 mo ago
Gemini API Devgoogle-gemini/gemini-skills	4.3k	—	~5.1k	Automated safety check: Pass	Apache-2.0	2 days ago
Gemini API Integrationsickn33/agentic-awesome-skills	47k	2 repos	~1.5k	Automated safety check: Pass	MIT	today
Gemini API Devaiskillstore/marketplace	430	2 repos	~1.6k	Automated safety check: Pass	Apache-2.0	today

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Works with

Questions about Gemini API Dev

What does Gemini API Dev do?

A skill your agent uses when building applications with Gemini models, Gemini API, working with multimodal content (text, images, audio, video), implementing function calling, using structured…. Gemini API Dev is an agent skill from benjaminasterA/antigravity-awesome-skills. Use this skill when building applications with Gemini models, Gemini API, working with multimodal content (text, images, audio, video), implementing function calling, using structured outputs, or n...

When should I use Gemini API Dev?

Gemini API Dev fits situations like: building applications with Gemini models; working with multimodal content (text; implementing function calling; using structured outputs.

How do I install Gemini API Dev in Claude Code?

Run `npx skills add benjaminasterA/antigravity-awesome-skills --skill gemini-api-dev -a claude-code`. Or copy the skill folder (skills/gemini-api-dev in benjaminasterA/antigravity-awesome-skills) into .claude/skills/gemini-api-dev in your project. Claude Code loads it when a task matches its description.

How do I install Gemini API Dev in Codex?

Run `npx skills add benjaminasterA/antigravity-awesome-skills --skill gemini-api-dev -a codex`. Or copy the skill folder (skills/gemini-api-dev in benjaminasterA/antigravity-awesome-skills) into .agents/skills/gemini-api-dev in your project. Codex loads it when a task matches its description.

Can I use Gemini API Dev 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 benjaminasterA/antigravity-awesome-skills --skill gemini-api-dev -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gemini-api-dev, .gemini/skills/gemini-api-dev, .github/skills/gemini-api-dev and .opencode/skills/gemini-api-dev in your project.

What does Gemini API Dev need to run?

Going by SKILL.md and its folder, Gemini API Dev needs the command-line tools its instructions call (pip, npm and go). Our summary lists: Python 3; Node.js.

Does Gemini API Dev access the network?

SKILL.md names 2 domains. In commands or code: ai.google.dev and generativelanguage.googleapis.com; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.

Is Gemini API Dev 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 Gemini API Dev use?

Gemini API Dev is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Gemini API Dev use?

About 1.2k tokens (SKILL.md is roughly 4.9k 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 Gemini API Dev?

Skills that share tags, products or a category with Gemini API Dev: Gemini API Dev (Ayuilos/Miffan, 208 stars), Gemini API Dev (JetBrains/skills, 366 stars), Gemini API Dev (google-gemini/gemini-skills, 4.3k stars) and Gemini API Integration (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Gemini API Dev?

benjaminasterA (a GitHub user) maintains it in benjaminasterA/antigravity-awesome-skills, which has 372 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 8, 2026.

Source: benjaminasterA/antigravity-awesome-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Gemini API Dev

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

Gemini API Development Skill

Overview

Current Gemini Models

SDKs

Quick Start

Python

JavaScript/TypeScript

Go

API spec (source of truth)

How to use the Gemini API

Key Documentation Pages

When to Use

Files

Used in 1 other repository

Compare with similar skills

Similar skills

More from benjaminasterA/antigravity-awesome-skills

Related

Questions about Gemini API Dev