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/fusengine/agents/solid-nextjsnpx skills add fusengine/agents --skill solid-nextjsgit clone --depth 1 https://github.com/fusengine/agentsWrote 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/fusengine/agents/solid-nextjs)<a href="https://agentmods.dev/skills/fusengine/agents/solid-nextjs"><img src="https://agentmods.dev/badge/skills/fusengine/agents/solid-nextjs.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 | $0.00029 | $0.01910 |
| Opus 5 | $0.00015 | $0.00955 |
| Sonnet 5 | $0.00006 | $0.00382 |
| Haiku 4.5 | $0.00003 | $0.00191 |
Grade A, and why
solid-nextjs 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 today.
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.
How it starts
The opening of the file, as written. The whole thing — 200 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Provides a dedicated reference guide per SOLID letter (SRP file-splitting, OCP composition/plugin patterns, LSP contract compliance, ISP role-based interfaces, DIP constructor injection/factories) plus 23 ready-to-copy templates covering components, hooks, services, stores, Server Actions, API routes, validators, Prisma singletons, i18n, and queries. This is a cross-cutting code-quality skill, not a feature skill — for the framework APIs themselves see nextjs-16 and its sibling skills.
SOLID Next.js - Modular Architecture
Current Date (CRITICAL)
Today: January 2026 - ALWAYS use the current year for your searches. Search with "2025" or "2026", NEVER with past years.
MANDATORY: Research Before Coding
CRITICAL: Check today's date first, then search documentation and web BEFORE writing any code.
- Use Context7 to query Next.js/React official documentation
- Use Exa web search with current year for latest trends
- Check Vercel Blog of current year for new features
- Verify package versions for Next.js 16 compatibility
Search queries (replace YYYY with current year):
Next.js [feature] YYYY best practicesReact 19 [component] YYYYTypeScript [pattern] YYYYPrisma 7 [feature] YYYY
Codebase Analysis (MANDATORY)
Before ANY implementation:
- Explore project structure to understand architecture
- Read existing related files to follow established patterns
- Identify naming conventions, coding style, and patterns used
- Understand data flow and dependencies
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.
- references/architecture-patterns.md 6.3 KB
- references/dependency-inversion.md 4.5 KB
- references/interface-segregation.md 4.0 KB
- references/liskov-substitution.md 4.0 KB
- references/open-closed.md 3.9 KB
- references/single-responsibility.md 5.0 KB
- references/solid-principles.md 4.0 KB
- references/templates/action.md 2.4 KB
- references/templates/adapter.md 2.5 KB
- references/templates/api-route.md 2.3 KB
- references/templates/client-component.md 2.4 KB
- references/templates/error.md 2.0 KB
- references/templates/factory.md 2.2 KB
- references/templates/hook.md 2.4 KB
- references/templates/i18n.md 2.7 KB
- references/templates/interface.md 2.3 KB
- references/templates/middleware.md 3.0 KB
- references/templates/prisma.md 2.3 KB
- references/templates/query.md 4.8 KB
- references/templates/server-component.md 2.2 KB
- references/templates/service.md 2.5 KB
- references/templates/store.md 2.5 KB
- references/templates/test.md 3.5 KB
- references/templates/validator.md 2.1 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.
- today Changed 8548085eb9c8
- yesterday First seen · 200 lines · 29 tokens per session scan A 50896f8ba8eb
solid-nextjs is a skill published in the GitHub repository fusengine/agents (25 stars, last pushed today), licensed MIT. It adds 29 tokens to every session and 1,910 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 2026-09-03.
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