Agent skill

Google Adk Python

by majiayu000 in majiayu000/claude-skill-registry

Build AI agents with Google ADK Python. An agent skill from majiayu000/claude-skill-registry.

Apache-2.0Auto-check passedAgent Workflows

Install Google Adk Python

skills CLI

$ npx skills add majiayu000/claude-skill-registry --skill google-adk-python -a claude-code

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

GitHub CLI

$ gh skill install majiayu000/claude-skill-registry google-adk-python --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/majiayu000/claude-skill-registry.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/agent/google-adk-python-nammdev-goads-krea .claude/skills/google-adk-python && 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 "google-adk-python" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/google-adk-python-nammdev-goads-krea into .claude/skills/google-adk-python/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "google-adk-python", 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/majiayu000/claude-skill-registry/tree/main/skills/agent/google-adk-python-nammdev-goads-krea

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 majiayu000/claude-skill-registry --skill google-adk-python -a codex

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

GitHub CLI

$ gh skill install majiayu000/claude-skill-registry google-adk-python --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/claude-skill-registry.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/agent/google-adk-python-nammdev-goads-krea .agents/skills/google-adk-python && 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 "google-adk-python" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/google-adk-python-nammdev-goads-krea into .agents/skills/google-adk-python/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "google-adk-python", 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 majiayu000/claude-skill-registry --skill google-adk-python -a cursor

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

GitHub CLI

$ gh skill install majiayu000/claude-skill-registry google-adk-python --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/claude-skill-registry.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/agent/google-adk-python-nammdev-goads-krea .cursor/skills/google-adk-python && 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 "google-adk-python" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/google-adk-python-nammdev-goads-krea into .cursor/skills/google-adk-python/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "google-adk-python", 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/majiayu000/claude-skill-registry.git --path skills/agent/google-adk-python-nammdev-goads-krea

--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 majiayu000/claude-skill-registry --skill google-adk-python -a gemini-cli

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

GitHub CLI

$ gh skill install majiayu000/claude-skill-registry google-adk-python --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/majiayu000/claude-skill-registry.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/agent/google-adk-python-nammdev-goads-krea .gemini/skills/google-adk-python && 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 "google-adk-python" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/google-adk-python-nammdev-goads-krea into .gemini/skills/google-adk-python/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "google-adk-python", 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 majiayu000/claude-skill-registry google-adk-python

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 majiayu000/claude-skill-registry --skill google-adk-python -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/claude-skill-registry.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/agent/google-adk-python-nammdev-goads-krea .github/skills/google-adk-python && 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 "google-adk-python" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/google-adk-python-nammdev-goads-krea into .github/skills/google-adk-python/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "google-adk-python", 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 majiayu000/claude-skill-registry --skill google-adk-python -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 majiayu000/claude-skill-registry google-adk-python --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/majiayu000/claude-skill-registry.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/agent/google-adk-python-nammdev-goads-krea .opencode/skills/google-adk-python && 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 "google-adk-python" agent skill from https://github.com/majiayu000/claude-skill-registry/tree/main/skills/agent/google-adk-python-nammdev-goads-krea into .opencode/skills/google-adk-python/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "google-adk-python", 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: google-adk-python
GitHub stars: 666
Used in: 1 other repo
Token cost: ~1.2k tokens
SKILL.md length: 340 words
Files: 2
Skills in repo: 1,273
Repo updated: Oct 7, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Build AI agents with Google ADK Python. An agent skill from majiayu000/claude-skill-registry.

Works in 7 steps: Code-first — define agents in Python for… → Agent convention — always use root_agent… → Modular agents — specialize per domain,… → …
Tasks that involve MCP servers
SKILL.md covers When to Activate, Agent Structure Convention…, Quick Start and App Pattern (Production), plus 7 more sections
Calls pip and uv

What it does

Google Adk Python is an agent skill from majiayu000/claude-skill-registry. Build AI agents with Google ADK Python. Multi-agent systems, A2A protocol, MCP tools, workflow agents, state/memory, callbacks/plugins, Vertex AI deployment, evaluation.

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `metadata.json`).

It sits in Agent Workflows, covering MCP servers. It works with Python, Agent2Agent Protocol and Vertex AI. The repository describes itself as: Searchable Claude Code skills catalog with source-linked guides and generated registry artifacts. The licence is Apache-2.0.

When your agent uses it

Tasks that involve MCP servers

Example prompts

“/google-adk-python”

Requirements

Python 3

Workflow steps

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

Code-first — define agents in Python for version control and testing
Agent convention — always use root_agent or app variable in agent.py
Modular agents — specialize per domain, compose via sub_agents
Workflow selection — workflow agents for predictable, LlmAgent for dynamic
State — ToolContext.state for ephemeral, MemoryService for long-term
Safety — callbacks for guardrails, tool confirmation for sensitive ops
Evaluate — test with adk eval + evalset JSON before deployment

What it can do on your machine

Read from SKILL.md and the folder at commit 2d14a69. 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
- uv
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
- github.com
- google.github.io
- raw.githubusercontent.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

Google Adk Python loads about 1.2k tokens when it runs. Until then it costs about 47 tokens; SKILL.md has 340 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~47
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 majiayu000/claude-skill-registry at commit 2d14a69, republished under its Apache-2.0 licence (© majiayu000). 340 words, ~1,207 tokens.

Download SKILL.mdSave it as .claude/skills/google-adk-python/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: google-adk-python
description: Build AI agents with Google ADK Python. Multi-agent systems, A2A protocol, MCP tools, workflow agents, state/memory, callbacks/plugins, Vertex AI deployment, evaluation.
license: Apache-2.0
version: 2.0.0

Google ADK Python Skill

Expert guide for Google's Agent Development Kit (ADK) Python — open-source, code-first toolkit for building, evaluating, and deploying AI agents. Optimized for Gemini, model-agnostic by design.

When to Activate

Build single or multi-agent systems with tool integration
Implement A2A protocol for remote agent communication
Integrate MCP servers as agent tools
Use workflow agents (sequential, parallel, loop) for pipelines
Manage sessions, state, memory, and artifacts
Add callbacks, plugins, or observability hooks
Deploy to Cloud Run, Vertex AI Agent Engine, or GKE
Evaluate agents with adk eval framework

Agent Structure Convention (Required)

my_agent/
├── __init__.py   # MUST: from . import agent
└── agent.py      # MUST: root_agent = Agent(...) OR app = App(...)

Quick Start

bash

pip install google-adk          # stable (weekly releases)
uv sync --all-extras            # dev setup (uv required, Python 3.10+, 3.11+ recommended)

python

from google.adk import Agent

root_agent = Agent(
    name="assistant",
    model="gemini-2.5-flash",
    instruction="You are a helpful assistant.",
    description="General assistant agent.",
    tools=[get_weather],
)

App Pattern (Production)

python

from google.adk import Agent
from google.adk.apps import App
from google.adk.apps.app import EventsCompactionConfig
from google.adk.plugins.save_files_as_artifacts_plugin import SaveFilesAsArtifactsPlugin

app = App(
    name="my_app",
    root_agent=Agent(name="my_agent", model="gemini-2.5-flash", ...),
    plugins=[SaveFilesAsArtifactsPlugin()],
    events_compaction_config=EventsCompactionConfig(compaction_interval=2),
)

Use App when needing plugins, event compaction, or custom lifecycle management.

CLI Tools

Command	Purpose
`adk web <agents_dir>`	Dev UI (recommended for development)
`adk run <agent_dir>`	Interactive CLI testing
`adk api_server <agents_dir>`	FastAPI production server
`adk eval <agent> <evalset.json>`	Run evaluation suite

Agent Types

Type	Use Case
`Agent` / `LlmAgent`	Dynamic routing, tool use, reasoning
`SequentialAgent`	Fixed-order pipeline
`ParallelAgent`	Concurrent execution
`LoopAgent`	Iterative processing
`RemoteA2aAgent`	Remote agent via A2A protocol

Key APIs

Feature	API
State	`tool_context.state[key] = value`
Artifacts	`tool_context.save_artifact(name, part)`
Callbacks	`before_agent_callback`, `after_model_callback`, etc.
MCP Tools	`MCPToolset(connection_params=StdioConnectionParams(...))`
Sub-agents	`Agent(..., sub_agents=[agent1, agent2])`
Human-in-loop	`LongRunningFunctionTool(func=my_func)`
Plugins	`App(..., plugins=[MyPlugin()])`

Model Support

Latest: gemini-2.5-flash (default), gemini-2.5-pro, gemini-2.0-flash (sunsets Mar 2026) Preview: gemini-3-flash-preview, gemini-3-pro-preview Also: Anthropic Claude, Ollama, LiteLLM, vLLM, Model Garden

Best Practices

Code-first — define agents in Python for version control and testing
Agent convention — always use root_agent or app variable in agent.py
Modular agents — specialize per domain, compose via sub_agents
Workflow selection — workflow agents for predictable, LlmAgent for dynamic
State — ToolContext.state for ephemeral, MemoryService for long-term
Safety — callbacks for guardrails, tool confirmation for sensitive ops
Evaluate — test with adk eval + evalset JSON before deployment

References

Detailed guides (load as needed):

references/agent-types-and-architecture.md — Agent types, workflows, custom agents
references/tools-and-mcp-integration.md — Custom tools, MCP, tool filtering
references/multi-agent-and-a2a-protocol.md — Sub-agents, A2A, coordinator patterns
references/sessions-state-memory-artifacts.md — State, artifacts, sessions, memory
references/callbacks-plugins-observability.md — Lifecycle hooks, plugins, tracing
references/evaluation-testing-cli.md — adk eval, CLI, evalset format
references/deployment-cloud-run-vertex-gke.md — Cloud Run, Vertex AI, GKE

External Resources

GitHub: https://github.com/google/adk-python
Docs: https://google.github.io/adk-docs/
Samples: https://github.com/google/adk-python/tree/main/contributing/samples
llms.txt: https://raw.githubusercontent.com/google/adk-python/refs/heads/main/llms.txt

Files

SKILL.md and 1 other file in skills/agent/google-adk-python-nammdev-goads-krea of majiayu000/claude-skill-registry.

SKILL.md
metadata.json

Open the folder on GitHubat commit 2d14a69

Used in 1 other repository

We found 3 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in majiayu000/claude-skill-registry, which our catalogue first saw on October 7, 2026.

binjuhor/shadcn-lar.claude/skills/google-adk-python

Compare with similar skills

Google Adk Python 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.

Google Adk Python compared with similar skills
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Vertex Engine Inspectorjeremylongshore/tons-of-skills-marketplace	2.8k	—	~1.7k	Automated safety check: Pass	MIT	today
MCP Server Builderanthropics/skills	180k	64 repos	~2.3k	Automated safety check: Pass	Apache-2.0	2 days ago
MCP Server BuildershareAI-lab/learn-claude-code	78k	5 repos	~1.2k	Automated safety check: Pass	MIT	9 days ago
Fastmcp Client CLIPrefectHQ/fastmcp	28k	1 repos	~823	Automated safety check: Pass	Apache-2.0	today
MemPalace Setup and OperationMemPalace/mempalace	59k	—	~2.2k	Automated safety check: Pass	MIT	today

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Questions about Google Adk Python

What does Google Adk Python do?

Build AI agents with Google ADK Python. An agent skill from majiayu000/claude-skill-registry. Google Adk Python is an agent skill from majiayu000/claude-skill-registry. Build AI agents with Google ADK Python.

When should I use Google Adk Python?

Google Adk Python fits situations like: tasks that involve MCP servers.

How do I install Google Adk Python in Claude Code?

Run `npx skills add majiayu000/claude-skill-registry --skill google-adk-python -a claude-code`. Or copy the skill folder (skills/agent/google-adk-python-nammdev-goads-krea in majiayu000/claude-skill-registry) into .claude/skills/google-adk-python in your project. Claude Code loads it when a task matches its description.

How do I install Google Adk Python in Codex?

Run `npx skills add majiayu000/claude-skill-registry --skill google-adk-python -a codex`. Or copy the skill folder (skills/agent/google-adk-python-nammdev-goads-krea in majiayu000/claude-skill-registry) into .agents/skills/google-adk-python in your project. Codex loads it when a task matches its description.

Can I use Google Adk Python 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 majiayu000/claude-skill-registry --skill google-adk-python -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/google-adk-python, .gemini/skills/google-adk-python, .github/skills/google-adk-python and .opencode/skills/google-adk-python in your project.

What does Google Adk Python need to run?

Going by SKILL.md and its folder, Google Adk Python needs the command-line tools its instructions call (pip and uv). Our summary lists: Python 3.

Does Google Adk Python access the network?

SKILL.md names 3 domains. As links in the text: github.com, google.github.io and raw.githubusercontent.com. This is read from the text; nothing was executed.

Is Google Adk Python 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 Google Adk Python use?

Google Adk Python is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Google Adk Python use?

About 1.2k tokens (SKILL.md is roughly 4.8k 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 Google Adk Python?

Skills that share tags, products or a category with Google Adk Python: Vertex Engine Inspector (jeremylongshore/tons-of-skills-marketplace, 2.8k stars), MCP Server Builder (anthropics/skills, 180k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k stars) and Fastmcp Client CLI (PrefectHQ/fastmcp, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Google Adk Python?

majiayu000 (a GitHub user) maintains it in majiayu000/claude-skill-registry, which has 666 GitHub stars. The repository holds 1,273 skills in this directory. The repository was last updated on October 7, 2026.

Source: majiayu000/claude-skill-registry on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Google Adk Python

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

Google ADK Python Skill

When to Activate

Agent Structure Convention (Required)

Quick Start

App Pattern (Production)

CLI Tools

Agent Types

Key APIs

Model Support

Best Practices

References

External Resources

Files

Used in 1 other repository

Compare with similar skills

Similar skills

More from majiayu000/claude-skill-registry

Related

Questions about Google Adk Python