Agent Development Kit for Go is a Go framework for building, evaluating, deploying, and coordinating AI agents through code. Developers use it to define agent logic, connect tools, compose multi-agent systems, and deploy applications in cloud environments, while retaining compatibility with models and frameworks beyond Gemini. The catalogue entries provide skills and instructions for working with ADK Go.
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 google/adk-go --skill grocery-pricesgit clone --depth 1 https://github.com/google/adk-goWrote 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/google/adk-go/grocery-prices)<a href="https://agentmods.dev/skills/google/adk-go/grocery-prices"><img src="https://agentmods.dev/badge/skills/google/adk-go/grocery-prices/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/google/adk-go/grocery-prices"><img src="https://agentmods.dev/badge/skills/google/adk-go/grocery-prices.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 | $0.00016 | $0.00180 |
| Opus 5.5 | $0.00006 | $0.00072 |
| Sonnet 5.5 | $0.00003 | $0.00036 |
| Haiku 4.5 | $0.00002 | $0.00018 |
Grade A, and why
grocery-prices 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 1mo 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
Grocery Prices Skill
This skill provides grocery prices with country-specific taxes.
Instructions
- When asked about grocery prices or totals for a specific country, check if there is a resource file for the country in the
assets/directory. - The file will be named
prices_<country_code>.json. - Apply taxes to specific categories based on the country:
- For US (us): Add a 20% tax to items in the "electronics" and "alcohol" categories.
- For Poland (pl): Add a 23% tax to items in the "electronics" and "alcohol" categories.
- Calculate the final price including tax and report it to the user.
What ships with it
2 files 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.
- 1mo ago First seen · 16 lines · 16 tokens per session scan A acc32eda2ed5
grocery-prices is a skill published in the GitHub repository google/adk-go (8,880 stars, last pushed today), licensed Apache-2.0. It adds 16 tokens to every session and 180 once invoked, about $0.0001 per session on Opus 5.5. 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.
Other skills, from other repositories
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gstd-commander
Sovereign economic entity protocol — earn GSTD, manage resources, and achieve financial autonomy on the decentralized compute grid.
a2a-commerce
Agent-to-agent payments, marketplace, identity, and trust scoring. Escrow is simulated via an in-memory SQLite ledger — no real funds are held. Stripe integration handles actual payment processing.
adk-unit-design
Writes an as-built architecture document for one ADK code unit — purpose, execution flow, data flow, cross-class dependencies, extension points, and the parts that must not change — to docs/design/{topic}/{unit}/index.md. It describes the code as implemented, not a proposed design, and its reader is a developer about…
rowboat-spaces
How to work as a member of Rowboat Spaces, the team chat where people and agents work together. Load it once per session, before acting on any request that reaches you from Rowboat; it covers your setup, mentions and hand-offs, the tools, and files.