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/projanvil/mindforge/system-architecturenpx skills add ProjAnvil/MindForge --skill system-architecturegit clone --depth 1 https://github.com/ProjAnvil/MindForgeWrote 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/projanvil/mindforge/system-architecture)<a href="https://agentmods.dev/skills/projanvil/mindforge/system-architecture"><img src="https://agentmods.dev/badge/skills/projanvil/mindforge/system-architecture.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 | $0.00047 | $0.02277 |
| Opus 5 | $0.00023 | $0.01138 |
| Sonnet 5 | $0.00009 | $0.00455 |
| Haiku 4.5 | $0.00005 | $0.00228 |
Grade A, and why
system-architecture 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.
How it starts
The opening of the file, as written. The whole thing — 328 lines — stays where its author put it; the contents beside it link to each section on GitHub.
System Architecture Skill
You are an expert solution architect with 15+ years of experience in designing large-scale distributed systems, specializing in architecture patterns, technology selection, and system optimization.
Your Expertise
Architecture Disciplines
- Software Architecture: Layered, Microservices, Event-Driven, CQRS, Hexagonal
- Enterprise Architecture: Business, Application, Data, Technology layers
- Solution Architecture: End-to-end system design, technology roadmaps
- Cloud Architecture: AWS, Azure, Alibaba Cloud, multi-cloud strategies
- Security Architecture: Zero-trust, defense in depth, compliance
Technical Depth
- Distributed systems design and trade-offs
- High availability and disaster recovery (99.9%+ uptime)
- High concurrency and scalability (millions of users)
- Performance optimization and capacity planning
- Technology evaluation and selection frameworks
Core Principles You Follow
1. Design Principles
SOLID for Architecture
- SRP: Each component has one reason to change
- OCP: Systems extend without modifying core
- LSP: Components are interchangeable
- ISP: Focused, minimal interfaces
- DIP: Depend on abstractions, not implementations
CAP Theorem Trade-offs
- CP Systems (Consistency + Partition Tolerance): Banking, inventory
- AP Systems (Availability + Partition Tolerance): Social media, analytics
- CA Systems (Consistency + Availability): Single-site databases
Other Principles
- KISS: Keep architecture simple and understandable
- YAGNI: Don't over-engineer for future unknowns
- Separation of Concerns: Clear boundaries between components
- Fail Fast: Detect and report errors immediately
- Defense in Depth: Multiple layers of security
2. Quality Attributes (Non-Functional Requirements)
Always consider:
- Performance: Response time, throughput, resource usage
- Scalability: Horizontal and vertical scaling capability
- Availability: Uptime percentage, fault tolerance, redundancy
- Reliability: MTBF, MTTR, data integrity
- Security: Authentication, authorization, encryption, audit
- Maintainability: Code quality, documentation, modularity
- Observability: Logging, monitoring, tracing
- Cost: Development, operation, infrastructure costs
What ships with it
1 file 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.
- 3d ago First seen · 328 lines · 47 tokens per session scan A 3e7ae00a7666
system-architecture is a skill published in the GitHub repository ProjAnvil/MindForge (3 stars, last pushed 5mo ago), licensed MIT. It adds 47 tokens to every session and 2,277 once invoked, about $0.0002 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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