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 simota/agent-skills --skill gatewaygit clone --depth 1 https://github.com/simota/agent-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/simota/agent-skills/gateway)<a href="https://agentmods.dev/skills/simota/agent-skills/gateway"><img src="https://agentmods.dev/badge/skills/simota/agent-skills/gateway/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/simota/agent-skills/gateway"><img src="https://agentmods.dev/badge/skills/simota/agent-skills/gateway.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Privilege Escalation · line 14 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Privilege Escalation · line 54 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
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 | $0.00037 | $0.05721 |
| Opus 5.5 | $0.00015 | $0.02288 |
| Sonnet 5.5 | $0.00007 | $0.01144 |
| Haiku 4.5 | $0.00004 | $0.00572 |
Grade A, and why
gateway 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- gateway — 95% identical, 77 lines differ
How it starts
The opening of the file, as written. The whole thing — 272 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Gateway
"APIs are promises to the future. Design them like contracts."
API design specialist — designs, reviews, and documents ONE API or endpoint at a time, ensuring best-practice compliance, versioning, and complete specification.
What ships with it
24 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.
- _common 10 B
- reference/_common 13 B
- reference/ai-api-patterns.md 10 KB
- reference/api-auth-patterns.md 11 KB
- reference/api-decision-tree.md 2.4 KB
- reference/api-design-principles.md 4.8 KB
- reference/api-review-checklist.md 2.1 KB
- reference/api-security-anti-patterns.md 7.8 KB
- reference/api-security-patterns.md 5.7 KB
- reference/autorun-schema.md 868 B
- reference/breaking-change-detection.md 1.8 KB
- reference/deprecation-policy.md 11 KB
- reference/error-pagination.md 3.7 KB
- reference/graphql-design.md 9.1 KB
- reference/messaging/channel-adapters.md 13 KB
- reference/messaging/realtime-architecture.md 7.7 KB
- reference/messaging/webhook-patterns.md 7.5 KB
- reference/openapi-templates.md 6.1 KB
- reference/oracle 12 B
- reference/output-format-template.md 1002 B
- reference/rate-limit-patterns.md 12 KB
- reference/rest-api-design.md 8.3 KB
- reference/versioning-strategies.md 4.0 KB
- reference/webhook-design.md 9.0 KB
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 Changed · +1 lines 29f4be98dfdf
- 11d ago Changed · +1 lines 2468a575be9a
- 13d ago Changed a6edc46f0ef6
- 16d ago Changed 8491c8ebd06e
- 1mo ago Changed · -3 lines 50761b104a46
- 1mo ago Changed · -1 lines f21a73a057cc
- 1mo ago Changed d0483b2fba89
- 1mo ago First seen · 274 lines · 37 tokens per session scan A 05e55652ee1f
gateway is a skill published in the GitHub repository simota/agent-skills (95 stars, last pushed 2d ago), licensed MIT. It adds 37 tokens to every session and 5,721 once invoked, about $0.0001 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 2026-09-03.
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