terradart: Skill for Claude Code

.agents/skills/terradart-agent-verify/SKILL.md

terradart-agent-verify is a skill for Claude Code, Codex from nozomi-koborinai/terradart. It costs 42 tokens per session (731 once invoked), scanned A, original, Apache-2.0.

A verification routine for TerraDart that checks documentation, code analysis, tests, generated-resource consistency, and a safe Pub/Sub smoke test. A smoke test is a small run that checks whether a workflow works without performing a real cloud deployment.

In plain words
What is it for?
Use it after changing wrappers, examples, generation code, or agent documentation, and when checking quickstarts with Terraform validation or Pub/Sub-related changes.
Why use it?
It provides one repeatable completion check and catches mismatches or unsafe examples before a pull request is opened or updated.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents); mentions AGENTS.md.

This is nozomi-koborinai/terradart's own configuration. It tells Claude Code and Codex how to work on terradart itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything terradart configures →

Reuse

Borrowing it

Nothing to install: this file belongs to nozomi-koborinai/terradart. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/nozomi-koborinai/terradart/main/.agents/skills/terradart-agent-verify/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/nozomi-koborinai/terradart

Made for: Claude Code, Codex.

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 terradart-agent-verify

README.md
[![agentmods](https://agentmods.dev/badge/skills/nozomi-koborinai/terradart/terradart-agent-verify/github.svg)](https://agentmods.dev/skills/nozomi-koborinai/terradart/terradart-agent-verify)
Your own site
<a href="https://agentmods.dev/skills/nozomi-koborinai/terradart/terradart-agent-verify"><img src="https://agentmods.dev/badge/skills/nozomi-koborinai/terradart/terradart-agent-verify/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.

agentmods 80×15 button for terradart-agent-verify

Your own site · 80×15
<a href="https://agentmods.dev/skills/nozomi-koborinai/terradart/terradart-agent-verify"><img src="https://agentmods.dev/badge/skills/nozomi-koborinai/terradart/terradart-agent-verify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 731 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00042 $0.00731
Opus 5 $0.00021 $0.00365
Sonnet 5 $0.00008 $0.00146
Haiku 4.5 $0.00004 $0.00073

Measured 6d ago against content hash 2f8e49e82ffd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

terradart-agent-verify 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 6d 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.

.agents/skills/terradart-agent-verify/SKILL.md · 52 lines

How it starts

The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.

TerraDart agent verification

Policy and pitfalls live in AGENTS.md at the repo root. This skill is the repeatable done workflow.

Contents

When to use

  • Before opening or updating a PR.
  • After editing wrapper overrides, generated wrappers, examples, or agent docs.
  • After a cloud-agent session claims work is finished.

Workflow

Task progress:

  • 1. From the repository root, run dart pub get if dependencies changed.
  • 2. Run tool/agent_verify.sh and confirm it exits 0 (agent_verify: OK). This includes check_example_topology (strict quickstarts only) and apply_smoke_test (cost gate + cost-comment gate test 13). If you added curated factories used in examples, confirm tool/apply_cost_denylist.yaml lines include gcp-cost: from MCP (not billing-behavior: alone unless IAM adjunct).
  • 3. example_synth_gates (inside step 2) already synths all quickstarts and runs terraform validate per example when terraform is on PATH; check_docs_consistency is the text-only docs check.
  • 4. If you touched pubsub_quickstart or synth/export paths, run tool/smoke_quickstart.sh.
  • 5. Report which commands ran in the PR or task summary.

Optional flags

tool/agent_verify.sh --format       # scoped dart format (hand-written packages)
tool/agent_verify.sh --maintainer   # add wrap-init / wrap-promote e2e tests

Use --maintainer when changing wrap-init, wrap-promote, or their tests.

Ad-hoc verification pitfalls

  • Never trust cmd | tail -1 && next. A pipeline's exit status is the last command's, so tail/grep/head swallow a failing dart test and the && chain continues. Run the command bare and check $? directly, or use agent_verify.sh (it sets pipefail).
  • Golden refresh is a copy, not an edit. When wrap output legitimately changes: Level A factory goldens (test/golden/*.factory.expected.dart.golden) take the regenerated wrapper with the 3-line banner stripped (tail -n +4); wrap fixture goldens (test/fixtures/wrap/expected_output/**) take the file verbatim, banner included. Never hand-edit golden contents to make a diff pass.

Read the full file on GitHub · 52 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. 6d ago Changed · -2 lines 2f8e49e82ffd
  2. 12d ago First seen · 54 lines · 42 tokens per session scan A e725c002ed1c

Subscribe to this mod's changes

terradart-agent-verify is a skill published in the GitHub repository nozomi-koborinai/terradart (46 stars, last pushed 3d ago), licensed Apache-2.0. It adds 42 tokens to every session and 731 once invoked, about $0.0002 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.