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/googleads/google-ads-api-developer-assistant/ext-versionnpx skills add googleads/google-ads-api-developer-assistant --skill ext-versiongit clone --depth 1 https://github.com/googleads/google-ads-api-developer-assistantWhat 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 | $0.00019 | $0.00210 |
| Opus 5 | $0.00010 | $0.00105 |
| Sonnet 5 | $0.00004 | $0.00042 |
| Haiku 4.5 | $0.00002 | $0.00021 |
Grade A, and why
ext-version 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
Get Extension Version
Use this skill to retrieve the version of the Google Ads API Developer Assistant. This is useful when diagnosing issues, verifying the environment, or when the user explicitly asks for the version.
Protocol
-
Execution: Run the version extraction script in python environment:
python3 skills/ext-version/scripts/get_extension_version.py -
Output Handling:
- The script will print the version string (e.g.,
4.0.0) tostdout. - If
plugin.jsonis missing or invalid, it will print an error tostderrand exit with code1.
- The script will print the version string (e.g.,
When to Use
- When the user asks "What version are you?" or "What is the assistant version?".
- Before generating diagnostic reports (to include the version in the report header as per rules).
- When troubleshooting environment-specific issues.
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.
- 2d ago First seen · 27 lines · 19 tokens per session scan A dd6e4dc036fd
ext-version is a skill published in the GitHub repository googleads/google-ads-api-developer-assistant (96 stars, last pushed 8d ago), licensed Apache-2.0. It adds 19 tokens to every session and 210 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 2026-08-30.
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