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/danicat/skills/google-ossnpx skills add danicat/skills --skill google-ossgit clone --depth 1 https://github.com/danicat/skillsWrote 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/danicat/skills/google-oss)<a href="https://agentmods.dev/skills/danicat/skills/google-oss"><img src="https://agentmods.dev/badge/skills/danicat/skills/google-oss.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 5.1 | $0.00085 | $0.00810 |
| Opus 5 | $0.00043 | $0.00405 |
| Sonnet 5 | $0.00017 | $0.00162 |
| Haiku 4.5 | $0.00009 | $0.00081 |
Grade A, and why
google-oss 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.
How it starts
The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Google Open Source Compliance & License Attributions
Audit, apply, and verify Google Open Source policy requirements, source code license headers (addlicense), and mandatory repository disclaimers.
⚡ Quick Reference: Actions & Commands
1. Apply License Headers via addlicense
Install the official Google addlicense tool if not already present:
go install github.com/google/addlicense@latest
Apply Apache-2.0 copyright headers across all source files:
$(go env GOPATH)/bin/addlicense -c "Google LLC" -l apache .
Verify/Check without modifying (CI gate):
$(go env GOPATH)/bin/addlicense -check -c "Google LLC" -l apache .
Common license flag options:
-l apache: Apache License 2.0 (standard default for Google OSS)-l mit: MIT License-l bsd: BSD 3-Clause License-s=only: Force SPDX short identifier style (// SPDX-License-Identifier: Apache-2.0)-ignore "vendor/**": Ignore specific directory globs
2. Mandatory README Disclaimers
Every repository published by Googlers or under Google open source that is not an official Google product MUST include the appropriate disclaimer in the root README.md.
Standard Non-Official Product Disclaimer:
---
## Disclaimer
This is not an officially supported Google product.
Experimental / Educational Project Disclaimer:
---
## Disclaimer
This is not an officially supported Google product. It is an experimental project created for educational and development purposes.
📋 Pre-Release Compliance Checklist
Before publishing or tagging any public open-source repository, verify:
- License Header Coverage:
- Run
addlicense -checkacross all code files (.go,.py,.ts,.js,.rs,.c,.cpp,.sh,.proto). - Ensure generated files (e.g.
*.pb.go) or third-party code invendor/orthird_party/are properly ignored or attributed.
- Run
- Root
LICENSEFile:- Ensure an unmodified copy of the chosen license (e.g. Apache 2.0) exists at the repository root.
- Non-Official Product Disclaimer:
- Present at the bottom of root
README.md.
- Present at the bottom of root
- Zero Internal Contamination:
- No internal links, internal issue trackers, intranet shortcuts, corporate credentials, or non-public project codenames.
What ships with it
3 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.
- 6d ago First seen · 104 lines · 85 tokens per session scan A 7157d815b24d
google-oss is a skill published in the GitHub repository danicat/skills (18 stars, last pushed 3d ago), licensed Apache-2.0. It adds 85 tokens to every session and 810 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 2026-08-30.
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