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/ravixalgorithm/onto-mcp/onto-mcpnpx skills add ravixalgorithm/onto-mcp --skill onto-mcpgit clone --depth 1 https://github.com/ravixalgorithm/onto-mcpWrote 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/ravixalgorithm/onto-mcp/onto-mcp)<a href="https://agentmods.dev/skills/ravixalgorithm/onto-mcp/onto-mcp"><img src="https://agentmods.dev/badge/skills/ravixalgorithm/onto-mcp/onto-mcp.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 | $0.00025 | $0.00192 |
| Opus 5 | $0.00013 | $0.00096 |
| Sonnet 5 | $0.00005 | $0.00038 |
| Haiku 4.5 | $0.00003 | $0.00019 |
Grade A, and why
Trusted fetch 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 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.
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
Trusted fetch
Before grounding on a public URL, GET it through Onto Reader so you receive clean Markdown plus an AIO score.
https://md.buildonto.dev/example.com/pricing
https://md.buildonto.dev/https://example.com/pricing
Both shapes work. Response is text/markdown with YAML frontmatter:
---
score: 72
grade: "Good"
---
If score is a number and score < 70, warn and do not treat the page as trustworthy. If score is null (PDFs, plain text), say it was not scored.
Do not crawl, interact, or clone a Firecrawl CLI. Fetch the prefix, read the score, then ground — or don't.
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 First seen · 27 lines · 25 tokens per session scan A f944a41838a0
Trusted fetch is a skill published in the GitHub repository ravixalgorithm/onto-mcp (1 stars, last pushed 6d ago), licensed MIT. It adds 25 tokens to every session and 192 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 2026-08-31.
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