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/jpantsjoha/googlecloud-plugin/cloud-storagenpx skills add jpantsjoha/googlecloud-plugin --skill cloud-storagegit clone --depth 1 https://github.com/jpantsjoha/googlecloud-pluginWhat 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 | $0.00078 | $0.00611 |
| Opus 5 | $0.00039 | $0.00305 |
| Sonnet 5 | $0.00016 | $0.00122 |
| Haiku 4.5 | $0.00008 | $0.00061 |
Grade A, and why
cloud-storage 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 2d 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
Cloud Storage
Highly durable, globally consistent object storage. Private by default — always review IAM before making anything public.
Safety Rule — Never Public by Default
New buckets must use uniform bucket-level access and must not grant allUsers or allAuthenticatedUsers without explicit design intent and gcp-security sign-off.
Core Patterns
Create a bucket (private, uniform access)
gcloud storage buckets create gs://BUCKET_NAME \
--location=REGION \
--uniform-bucket-level-access \
--project=PROJECT_ID
Grant access (least-privilege)
gcloud storage buckets add-iam-policy-binding gs://BUCKET_NAME \
--member="serviceAccount:[email protected]" \
--role="roles/storage.objectViewer"
Upload / download
gcloud storage cp LOCAL_FILE gs://BUCKET_NAME/path/
gcloud storage cp gs://BUCKET_NAME/path/FILE ./local/
Lifecycle policy (auto-delete after N days)
cat > /tmp/lifecycle.json <<'EOF'
{
"rule": [{
"action": {"type": "Delete"},
"condition": {"age": 90}
}]
}
EOF
gcloud storage buckets update gs://BUCKET_NAME \
--lifecycle-file=/tmp/lifecycle.json
Generate a signed URL (time-limited access)
gcloud storage sign-url gs://BUCKET_NAME/OBJECT \
--duration=1h \
--private-key-file=KEY_FILE
References
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.
- 2d ago First seen · 75 lines · 78 tokens per session scan A 432f21eb9f5f
cloud-storage is a skill published in the GitHub repository jpantsjoha/googlecloud-plugin (4 stars, last pushed 25d ago), licensed MIT. It adds 78 tokens to every session and 611 once invoked, about $0.0004 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 2026-08-31.
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