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 skills add majiayu000/claude-skill-registry --skill 35-google-adk-reliable-agentsgit clone --depth 1 https://github.com/majiayu000/claude-skill-registryWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/majiayu000/claude-skill-registry/35-google-adk-reliable-agents)<a href="https://agentmods.dev/skills/majiayu000/claude-skill-registry/35-google-adk-reliable-agents"><img src="https://agentmods.dev/badge/skills/majiayu000/claude-skill-registry/35-google-adk-reliable-agents/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/majiayu000/claude-skill-registry/35-google-adk-reliable-agents"><img src="https://agentmods.dev/badge/skills/majiayu000/claude-skill-registry/35-google-adk-reliable-agents.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What 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 5.1 | $0.00019 | $0.00543 |
| Opus 5 | $0.00010 | $0.00271 |
| Sonnet 5 | $0.00004 | $0.00109 |
| Haiku 4.5 | $0.00002 | $0.00054 |
Grade A, and why
35-google-adk-reliable-agents 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 13d ago.
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.
What it actually says
Build Your Google ADK Skill
Before learning Google's Agent Development Kit, you'll own a Google ADK skill.
Step 1: Get the Skills Lab
- Go to github.com/panaversity/claude-code-skills-lab
- Click the green Code button
- Select Download ZIP
- Extract the ZIP file
- Open the extracted folder in your terminal
cd claude-code-skills-lab
claude
Step 2: Create Your Skill
Copy and paste this prompt:
Using your skill creator skill create a new skill for Google ADK (Agent
Development Kit). I will use it to build reliable AI agents with Gemini
from hello world to professional production systems. Use context7 skill
to study official documentation and then build it so no self assumed knowledge.
Claude will:
- Fetch official Google ADK documentation via Context7
- Ask you clarifying questions (workflow types, tool patterns, evaluation needs)
- Create the complete skill with references and templates
Your skill appears at .claude/skills/google-adk/.
Done
You now own a Google ADK skill built from official documentation. The rest of this chapter teaches you what it knows—and how to make it better.
Next: Lesson 1 — ADK Fundamentals
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 13d ago First seen · 78 lines · 19 tokens per session scan A 964c9bac9aaf
35-google-adk-reliable-agents is a skill published in the GitHub repository majiayu000/claude-skill-registry (604 stars, last pushed yesterday), licensed MIT. It adds 19 tokens to every session and 543 once invoked, about $0.0001 per session on Opus 5. 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.
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