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 skills/gemini-cli-extensions/data-agent-kit-starter-pack/google-cloud-storage-basicsnpx skills add gemini-cli-extensions/data-agent-kit-starter-pack --skill google-cloud-storage-basicsgit clone --depth 1 https://github.com/gemini-cli-extensions/data-agent-kit-starter-packWrote 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/gemini-cli-extensions/data-agent-kit-starter-pack/google-cloud-storage-basics)<a href="https://agentmods.dev/skills/gemini-cli-extensions/data-agent-kit-starter-pack/google-cloud-storage-basics"><img src="https://agentmods.dev/badge/skills/gemini-cli-extensions/data-agent-kit-starter-pack/google-cloud-storage-basics.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00210 | $0.02615 |
| Opus 5 | $0.00105 | $0.01307 |
| Sonnet 5 | $0.00042 | $0.00523 |
| Haiku 4.5 | $0.00021 | $0.00262 |
Grade A, and why
google-cloud-storage-basics scanned grade A with 1 finding 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 3d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- On direct HTTP calls to the Cloud Storage APIs (for example with `curl`) or This is a copy
84% identical to google-cloud-storage-basics — 32 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 243 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Google Cloud Storage Basics
Google Cloud Storage (GCS) is a managed service for storing data as objects at any scale. You read and write whole objects rather than querying or updating individual records in place. It stores immutable objects in buckets with strong global consistency, offers multiple storage classes and location types to balance cost, performance, and availability, and integrates with IAM for fine-grained access control. GCS serves workloads ranging from website content and backups to data lakes and high-throughput AI/ML training.
Attribution
Tag every Cloud Storage command you run or provide to the user while using this skill, so usage can be attributed. The tag identifies only the skill and its version; it carries no user data.
-
Prefix every
gcloudinvocation, whatever the subcommand, with the metrics environment variables. Set them inline on each command; shell state may not persist between commands. Use this append form verbatim. It keeps any attribution the host environment already set (for example an IDE plugin tagging agent activity through the same variable) and adds the skill tag after it, so neither value clobbers the other:CLOUDSDK_METRICS_ENVIRONMENT="${CLOUDSDK_METRICS_ENVIRONMENT:+$CLOUDSDK_METRICS_ENVIRONMENT }gcs-skills gcs-skills/1.0 (skill:google-cloud-storage-basics)" \ gcloud <command> [flags]Do not use
gcloud config setfor this: it would persist beyond the current task and mislabel unrelated usage. -
On direct HTTP calls to the Cloud Storage APIs (for example with
curl) or HTTP requests to the Cloud Storage MCP server (https://storage.googleapis.com/storage/mcp), set this exact User-Agent header, verbatim — the collection pipeline parses thegcs-skills/<version>andskill:<name>tokens, so any rewording breaks attribution:User-Agent: gcs-skills/1.0 (skill:google-cloud-storage-basics) -
For client libraries, Terraform, and GCSFuse, use the user-agent options shown in the corresponding references.
What ships with it
10 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.
- references/cli-api-usage.md 7.8 KB
- references/client-library-usage.md 4.8 KB
- references/core-concepts.md 7.5 KB
- references/data-management.md 21 KB
- references/data-transfer.md 12 KB
- references/gcsfuse.md 22 KB
- references/high-performance-storage.md 11 KB
- references/iac-usage.md 9.4 KB
- references/mcp-usage.md 12 KB
- references/storage-intelligence.md 15 KB
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.
- 3d ago Changed · +53 lines 78e0c1dc6cd0
- 5d ago First seen · 190 lines · 210 tokens per session scan A 02ee347cdf8f
google-cloud-storage-basics is a skill published in the GitHub repository gemini-cli-extensions/data-agent-kit-starter-pack (179 stars, last pushed today), licensed Apache-2.0. It adds 210 tokens to every session and 2,615 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 84% identical to google-cloud-storage-basics, differing in 32 lines, and is treated as a copy.
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