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google-agents-cli-adk-code skill

A reference skill for writing Agent Development Kit code in Python or Go: agent types, tools, callbacks, state, orchestration and recipes.

in google/agents-cli Planning, TDD & debuggingSkill & agent tooling
Our verdict Recommended

A compact, well-indexed ADK reference; useful if you use ADK, pointless if you do not.

3/5 Depth expertise shipped Note Security Review before installing 2d Maintenance Updated 2 days ago 521K Adoption installs OK License Apache-2.0, commercial OK

What the google-agents-cli-adk-code skill does

This skill is the API cheat sheet the agent reads before writing ADK code. It covers agent definitions, tool definitions, orchestration patterns (sequential, parallel and loop agents, custom agents), callbacks, plugins, state and artifacts, the graph Workflow API, A2A and live or voice agents. A references folder holds six files: Python and Go core references, workflow references for each language, a live-agent reference and a recipes index. The recipes index maps a need, such as sandboxed code execution, cross-session memory, approval gates before risky actions, tool guardrails, per-user credentials or scheduled runs, to a worked implementation to study. For deeper questions it points the agent to the ADK docs index (adk.dev/llms.txt) and to the installed package source. It refuses to write agent code until a project is scaffolded with agents-cli scaffold create or enhance, and it defers scaffolding, deployment and evaluation to sibling skills. The SKILL.md itself is short, about 4.5 KB, and the substance sits in the reference files.

Good for

  • Writing or extending ADK agents in Python or Go
  • Looking up an ADK pattern before implementing it

Not for

  • Agents written in other frameworks
  • Project creation or deployment, handled by the sibling skills

Depth 3/5

A short 4.5 KB SKILL.md backed by six reference files, but no scripts or evals of its own.

Dependencies and costs

  • agents-cli (uv tool install google-agents-cli), Python 3.11+, uv and Node.js
  • A Google Cloud project and credentials for deployment and cloud features (an AI Studio API key is enough for local create, run and eval)
  • Telemetry: The agents-cli tool sends one usage signal per command (command name, exit code, error class, duration, CLI and Python versions, OS), written as a log entry to your own Google Cloud project's Cloud Logging, never file contents or arguments. Opt out with AGENTS_CLI_TELEMETRY=0; agents-cli info shows the current state.

Security review

Review before installing

Markdown-only reference for writing ADK agent code (agents, tools, callbacks, state, workflows); it contains no scripts. It tells the agent to use the agents-cli tool and to read ADK documentation from adk.dev. The agents-cli tool itself was not reviewed and, per the repo README, sends usage telemetry that can be disabled with an environment variable.

Worth knowing

  • Relies on a CLI or package we could not reviewFrontmatter requires the agents-cli binary (install: uv tool install google-agents-cli), whose code is not in the skill folder.SKILL.md:20
  • Installs packages or toolsInstall step is uv tool install google-agents-cli; reference docs also mention pip install google-adk[a2a].SKILL.md:20
  • Makes network requestsTells the agent to fetch the ADK docs index (curl https://adk.dev/llms.txt) and WebFetch individual doc pages as reference material.SKILL.md:65
  • Sends usage data by default (can be turned off)The agents-cli tool this skill drives sends per-command usage telemetry by default; the repo README (outside the skill folder) documents AGENTS_CLI_TELEMETRY=0 and DO_NOT_TRACK=1 to opt out.README.md:195

What we checked

The skill folder (7 files) on Oct 29, 2026. Not a full review: it relies on code outside the repository: agents-cli (PyPI package google-agents-cli, installed with uv tool install).

NVIDIA SkillSpector static scan: 8 pattern hits (Privilege Escalation 2, Excessive Agency 2, Supply Chain 1, Prompt Injection 1, Data Exfiltration 1, MCP Rug Pull 1). Hits are documentation: credential matches are ADK auth examples (APIKey from env vars), 'silently send' is a sentence about Live model region fallback, requests.post is an example against a local ADK server, 'timeout=None' and 'npx required' are code samples. The curl of adk.dev/llms.txt is a docs-index lookup, not piped to a shell.

A review, not a certification. Skills change after we check them — read the files before installing.

License

Apache-2.0 — commercial use allowed.

Can it run unattended?

Not really. It is a reference skill consulted while coding, not a loop.

Alternatives

Mastra Agent Skills

mastra-ai/skills

Mastra's official skills: a framework guide that routes to current docs and ten references, and a Factory supervisor skill for the mastra api CLI.

With caveats Broad access Depth 3/5

Google Agent Skills

google/skills

Google's official collection of about 180 skills for Google Cloud, Gemini APIs, Analytics, Data Manager, sign-in and other Google products.

Recommended Broad access Depth 3/5

The AI SDK repo's skills: one public ai-sdk skill for building with the SDK plus about a dozen maintainer-only skills for the monorepo.

With caveats Check first Depth 2/5

FAQ

What is google-agents-cli-adk-code?

A reference skill for writing Agent Development Kit code in Python or Go: agent types, tools, callbacks, state, orchestration and recipes.

How do I install google-agents-cli-adk-code?

It ships in the google/agents-cli repository. Run uvx google-agents-cli setup or npx skills add google/agents-cli; the skill expects the agents-cli binary (uv tool install google-agents-cli).

Is google-agents-cli-adk-code safe?

The skill is markdown with reference files and no scripts. It sends the agent to fetch ADK docs pages, and the agents-cli it relies on has opt-out usage telemetry.

Sources: GitHub repository; install counts from skills.sh via Best Skills (CC BY 4.0). Review based on the published SKILL.md.