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 skills add amoslee2026/Babel --skill bb-invoke-yosysgit clone --depth 1 https://github.com/amoslee2026/BabelWrote 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/amoslee2026/babel/bb-invoke-yosys)<a href="https://agentmods.dev/skills/amoslee2026/babel/bb-invoke-yosys"><img src="https://agentmods.dev/badge/skills/amoslee2026/babel/bb-invoke-yosys/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.
<a href="https://agentmods.dev/skills/amoslee2026/babel/bb-invoke-yosys"><img src="https://agentmods.dev/badge/skills/amoslee2026/babel/bb-invoke-yosys.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00144 | $0.02681 |
| Opus 5.5 | $0.00058 | $0.01072 |
| Sonnet 5.5 | $0.00029 | $0.00536 |
| Haiku 4.5 | $0.00014 | $0.00268 |
Grade A, and why
bb-invoke-yosys 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 yesterday.
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.
The source is not reproduced here
Licensed GPL-3.0
The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
9 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.
- Gotcha/yosys_errors.md 1.7 KB
- references/asap7_libs.md 2.2 KB
- references/yosys_tcl_template.md 3.5 KB
- scripts/generate_synthesis_config.py 8.7 KB runs code
- scripts/parse_qor.py 5.5 KB runs code
- scripts/render_yosys_tcl.py 5.9 KB runs code
- scripts/run_parallel_synthesis.py 7.2 KB runs code
- scripts/run_synthesis_first_run.py 11 KB runs code
- scripts/run_yosys.py 4.2 KB runs code
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.
- yesterday Changed · +10 lines f4272d7928f1
- 1mo ago First seen · 194 lines · 144 tokens per session scan A 5d01fc221da3
bb-invoke-yosys is a skill published in the GitHub repository amoslee2026/Babel (50 stars, last pushed yesterday), licensed GPL-3.0. It adds 144 tokens to every session and 2,681 once invoked, about $0.0006 per session on Opus 5.5. 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 2026-09-04.
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