Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add agents/google/adk-docs/configgit clone --depth 1 https://github.com/google/adk-docsWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.02963 |
| Opus 5 | $0.00000 | $0.01482 |
| Sonnet 5 | $0.00000 | $0.00593 |
| Haiku 4.5 | $0.00000 | $0.00296 |
Grade A, and why
config scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 310 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Build agents with Agent Config
The ADK Agent Config feature lets you build an ADK workflow without writing code. An Agent Config uses a YAML format text file with a brief description of the agent, allowing just about anyone to assemble and run an ADK agent. The following is a simple example of a basic Agent Config definition:
name: assistant_agent
model: gemini-flash-latest
description: A helper agent that can answer users' questions.
instruction: You are an agent to help answer users' various questions.
You can use Agent Config files to build more complex agents which can incorporate Functions, Tools, Sub-Agents, and more. This page describes how to build and run ADK workflows with the Agent Config feature. For detailed information on the syntax and settings supported by the Agent Config format, see the Agent Config syntax reference.
!!! example "Experimental" The Agent Config feature is experimental and has some known limitations. We welcome your feedback!
Get started
This section describes how to set up and start building agents with the ADK and the Agent Config feature, including installation setup, building an agent, and running your agent.
Setup
You need to install the Google Agent Development Kit libraries, and provide an access key for a generative AI model such as Gemini API. This section provides details on what you must install and configure before you can run agents with the Agent Config files.
!!! note The Agent Config feature currently only supports Gemini models. For more information about additional; functional restrictions, see Known limitations.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday First seen · 310 lines · 0 tokens per session scan A 046ed44c76fa
config is an agent published in the GitHub repository google/adk-docs (1,479 stars, last pushed 3d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 2,963 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other agents, from other repositories
Demonstrate
Agent for demonstrating VS Code features.
playwright-test-generator
Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.
.NET-Notebook-Migration-Agent
Expert .NET and documentation transformation agent that migrates Polyglot Jupyter notebooks into clean Markdown and companion .NET sample code.
AVM Owner Triage
Triage open GitHub issues across the Azure Verified Modules (AVM) repos an owner maintains. Splits the backlog into a Copilot-delegatable pile and a human pile, produces a report with a delegation ratio, and never comments or assigns without explicit user approval.
Ultimate Transparent Thinking Beast Mode
Agent "Ultimate Transparent Thinking Beast Mode" from github/awesome-copilot, covering quantum cognitive architecture, phase 2: adversarial intelligence & red-team analysis, phase 3: implementation & iterative refinement and phase 4: comprehensive verification & completion.
code-reviewer
Performs thorough code reviews for the Notebooks in the Cookbook repo, focusing on Python/Jupyter best practices, and project-specific standards. Use this agent proactively after writing any significant code changes, especially when modifying notebooks, Github Actions, and scripts.