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/ralvarezdev/ralvaskills/mcp-architectnpx skills add ralvarezdev/ralvaskills --skill mcp-architectgit clone --depth 1 https://github.com/ralvarezdev/ralvaskillsWrote 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/ralvarezdev/ralvaskills/mcp-architect)<a href="https://agentmods.dev/skills/ralvarezdev/ralvaskills/mcp-architect"><img src="https://agentmods.dev/badge/skills/ralvarezdev/ralvaskills/mcp-architect.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 | $0.00160 | $0.07029 |
| Opus 5 | $0.00080 | $0.03514 |
| Sonnet 5 | $0.00032 | $0.01406 |
| Haiku 4.5 | $0.00016 | $0.00703 |
Grade C, and why
mcp-architect scanned grade C with 2 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 4d 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.
Cloud metadata endpointhighServer-side request forgery
One request to 169.254.169.254 can return temporary IAM credentials.
- **Resolve and block** RFC 1918, link-local, loopback, IMDS (`169.254.169.254`) before the request. Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- You need cache semantics, public API discoverability, or `curl`-first ergonomics — REST wins. 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
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.
- 4d ago First seen · 277 lines · 160 tokens per session scan C 2f203ffbe80d
mcp-architect is a skill published in the GitHub repository ralvarezdev/ralvaskills (2 stars, last pushed 24d ago), licensed GPL-3.0. It adds 160 tokens to every session and 7,029 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it C with 2 findings (cloud metadata endpoint, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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