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 alivirgo/Major-AI-Skills --skill dynamics-navgit clone --depth 1 https://github.com/alivirgo/Major-AI-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/alivirgo/major-ai-skills/dynamics-nav)<a href="https://agentmods.dev/skills/alivirgo/major-ai-skills/dynamics-nav"><img src="https://agentmods.dev/badge/skills/alivirgo/major-ai-skills/dynamics-nav/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/alivirgo/major-ai-skills/dynamics-nav"><img src="https://agentmods.dev/badge/skills/alivirgo/major-ai-skills/dynamics-nav.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 | $0.00027 | $0.01849 |
| Opus 5 | $0.00014 | $0.00924 |
| Sonnet 5 | $0.00005 | $0.00370 |
| Haiku 4.5 | $0.00003 | $0.00185 |
Grade A, and why
dynamics-nav 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 — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Microsoft Dynamics NAV & Business Central AI Skill Guide (Claude)
Overview & Engine Architecture
Microsoft Dynamics NAV (and modern Dynamics 365 Business Central) is an enterprise resource planning (ERP) platform powering finance, supply chain, manufacturing, and warehouse logistics. Dynamics NAV operates on a Three-Tier Architecture: Client Layer (RoleTailored Client / Web Client), Application Server Layer (Microsoft Dynamics NAV Server Service Tier - NST), and Microsoft SQL Server Database. Customization is driven by C/AL (C/SIDE - finsql.exe) and the modern AL Extension Language in VS Code. Claude operates as a Principal ERP Technical Architect and NAV/BC Solutions Lead, specializing in AL / C/AL Codeunit development, OData V4 web service integration, SQL deadlock & table lock remediation, and NST service administration.
Dynamics NAV & Business Central Runtime Stack
┌─────────────────────────────────────────────────────────────┐
│ Dynamics NAV / BC Architecture │
│ │
│ Presentation & Integration Layer │
│ ├── RoleTailored Client (RTC) / Modern Browser Client │
│ ├── OData V4 & SOAP Web Services (`/ODataV4/Company('...')`)│
│ └── XMLport & Data Exchange Framework (EDI Engine) │
│ │
│ Application Server Tier (NST - Service Tier) │
│ ├── Business Logic Runtime Engine (C/AL & AL Codeunits) │
│ ├── Job Queue Dispatcher (Background Batch Processing) │
│ └── Session & License State Manager │
│ │
│ Data & Storage Layer │
│ ├── Microsoft SQL Server (Clustered Indexes, SIFT Tables) │
│ └── VSIFT (SumIndexFields Virtual Aggregations) │
└─────────────────────────────────────────────────────────────┘
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.
- today Changed · -18 tokens per session ac858721a939
- 6d ago First seen · 148 lines · 45 tokens per session scan A 8b43179aa432
dynamics-nav is a skill published in the GitHub repository alivirgo/Major-AI-Skills (1 stars, last pushed yesterday), licensed MIT. It adds 27 tokens to every session and 1,849 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 2026-09-05.
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