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 seaworld008/Commonly-used-high-value-skills --skill gatewaygit clone --depth 1 https://github.com/seaworld008/Commonly-used-high-value-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/seaworld008/commonly-used-high-value-skills/gateway)<a href="https://agentmods.dev/skills/seaworld008/commonly-used-high-value-skills/gateway"><img src="https://agentmods.dev/badge/skills/seaworld008/commonly-used-high-value-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/seaworld008/commonly-used-high-value-skills/gateway"><img src="https://agentmods.dev/badge/skills/seaworld008/commonly-used-high-value-skills/gateway.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 | $0.00018 | $0.05864 |
| Opus 5 | $0.00009 | $0.02932 |
| Sonnet 5 | $0.00004 | $0.01173 |
| Haiku 4.5 | $0.00002 | $0.00586 |
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 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.
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.
This is a copy
95% identical to gateway — 44 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 308 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
37 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.
- 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-anti-patterns.md 4.2 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 918 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/graphql-spec-anti-patterns.md 11 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/output-format-template.md 1002 B
- reference/rate-limit-patterns.md 12 KB
- reference/rest-api-design.md 8.3 KB
- reference/versioning-governance-anti-patterns.md 7.8 KB
- reference/versioning-strategies.md 4.0 KB
- reference/webhook-design.md 9.0 KB
- references/ai-api-patterns.md 6.2 KB
- references/api-decision-tree.md 1.1 KB
- references/api-design-anti-patterns.md 7.9 KB
- references/api-security-anti-patterns.md 7.9 KB
- references/api-security-patterns.md 5.9 KB
- references/error-pagination-ratelimit.md 6.1 KB
- references/graphql-design.md 7.2 KB
- references/graphql-spec-anti-patterns.md 11 KB
- references/openapi-templates.md 4.6 KB
- references/rest-api-design.md 7.0 KB
- references/versioning-governance-anti-patterns.md 8.0 KB
- references/versioning-strategies.md 3.9 KB
- references/webhook-design.md 7.4 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.
- 4d ago Changed · -2 lines 2b876f5e3612
- 8d ago First seen · 310 lines · 18 tokens per session scan A 02bf8f7739db
gateway is a skill published in the GitHub repository seaworld008/Commonly-used-high-value-skills (70 stars, last pushed 4d ago), licensed MIT. It adds 18 tokens to every session and 5,864 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to gateway, differing in 44 lines, and is treated as a copy.
Other skills, from other repositories
read-only-gh-pr-review
Review backend pull requests for correctness, security, performance, maintainability, and test coverage using GitHub CLI plus local repository inspection. Use when asked to review service-layer/API/database changes, audit backend branch diffs, summarize backend risk, or produce actionable must-fix/should-fix feedback.
omh-backend
This is a Hermes-native backend workflow skill.
unicli-explorer
Create new Uni-CLI adapters by exploring websites and APIs. Use when adding support for a new site, desktop app, or service that unicli doesn't cover yet.
authentication-patterns
OAuth 2.0, JWT, SSO, MFA, NextAuth/Clerk/Supabase Auth implementation patterns.
email-systems
Transactional email (Resend, SendGrid, SES), templates (React Email, MJML), deliverability (SPF/DKIM/DMARC), and inboxing best practices. Use when building email infrastructure, designing templates, or troubleshooting deliverability.
event-driven-architecture
Kafka, RabbitMQ, SQS/SNS, event sourcing, CQRS, saga patterns, dead letter queues, and idempotency. Use when designing asynchronous systems, implementing message-driven workflows, or building event streaming pipelines.