scaffold-google-adk

scaffold-google-adk is a command for Claude Code from kumaran-is/claude-code-onboarding. It costs 21 tokens per session (1,469 once invoked), scanned A, original, MIT.

A command that creates a Google Agent Development Kit service using Gemini, FastAPI, sessions, memory, and deployment infrastructure. It first gathers the agent’s purpose, integrations, safety rules, and deployment choice for review.

In plain words
What is it for?
Use it to start a production-oriented Google AI agent service with web APIs, conversation sessions, memory, and, when needed, document retrieval or communication with other agents.
Why use it?
It turns an idea into an agreed design before code is generated, including decisions about external data, safeguards, deployment, and optional retrieval or agent-to-agent communication.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions CLAUDE.md.

Good fit Use it to start a production-oriented Google AI agent service with web APIs, conversation sessions, memory, and, when needed, document retrieval or communication with other agents.

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Install with agentmods
npx agentmods add commands/kumaran-is/claude-code-onboarding/scaffold-google-adk
Install

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.

Clone the repo
git clone --depth 1 https://github.com/kumaran-is/claude-code-onboarding

Made for: Claude Code.

Wrote 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.

agentmods badge for scaffold-google-adk

README.md
[![agentmods](https://agentmods.dev/badge/commands/kumaran-is/claude-code-onboarding/scaffold-google-adk.svg)](https://agentmods.dev/commands/kumaran-is/claude-code-onboarding/scaffold-google-adk)
Your own site
<a href="https://agentmods.dev/commands/kumaran-is/claude-code-onboarding/scaffold-google-adk"><img src="https://agentmods.dev/badge/commands/kumaran-is/claude-code-onboarding/scaffold-google-adk.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,469 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00021 $0.01469
Opus 5 $0.00010 $0.00734
Sonnet 5 $0.00004 $0.00294
Haiku 4.5 $0.00002 $0.00147

Measured 5d ago against content hash 31cd4f6cab0d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

scaffold-google-adk 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 5d 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.

.claude/commands/scaffold-google-adk.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Scaffold Google ADK Service

Project name: $ARGUMENTS (default to "my-adk-service" if not provided)

Delegate to the google-adk skill for all patterns, templates, and reference files.

Pre-Scaffold Questions

Before writing any code or running any command, ask ALL of the following. Present DESIGN_SPEC.md for approval before running any scaffold command.

Always ask:

  1. What problem will the agent solve? — Core purpose and capabilities
  2. External APIs or data sources needed? — Tools, integrations, auth requirements
  3. Safety constraints? — What the agent must NOT do, guardrails
  4. Deployment preference? — Prototype first (recommended) or full deployment? If deploying: Agent Engine or Cloud Run?

Ask based on context:

  • If retrieval or search over data mentioned (RAG, semantic search, vector search, embeddings, similarity search, data ingestion) → Datastore? Use --agent agentic_rag --datastore <choice>:
    • vertex_ai_vector_search — for embeddings, similarity search, vector search
    • vertex_ai_search — for document search, search engine
  • If agent should be available to other agentsA2A protocol? Use --agent adk_a2a (see Option C below)
  • If full deployment chosen → CI/CD runner? Choose github_actions (WIF-based, no PAT) or google_cloud_build (native GCP)
  • If Cloud Run chosen → Session storage? cloud_sql for production (VertexAiSessionService); in_memory for dev/prototype
  • If background job chosen (schedule/event trigger, no HTTP) → Use Option D (BackgroundJob pattern) — no FastAPI, no streaming

Steps

  1. Read the google-adk skill (SKILL.md and reference files) before generating any code

  2. Ask the user which setup approach they want:

    "Do you want: A) agent-starter-pack (production-grade — includes Terraform, Dockerfile, CI/CD, eval harness; recommended for real projects) B) Manual setup (simpler, no deployment scaffold — use for learning or quick prototypes)"

Read the full file on GitHub · 135 lines

Changes

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.

  1. 5d ago First seen · 135 lines · 21 tokens per session scan A 31cd4f6cab0d

Subscribe to this mod's changes

scaffold-google-adk is a command published in the GitHub repository kumaran-is/claude-code-onboarding (35 stars, last pushed 2mo ago), licensed MIT. It adds 21 tokens to every session and 1,469 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 2026-09-03.