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 thapaliyabikendra/ai-artifacts --skill domain-modelinggit clone --depth 1 https://github.com/thapaliyabikendra/ai-artifactsWrote 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/thapaliyabikendra/ai-artifacts/domain-modeling)<a href="https://agentmods.dev/skills/thapaliyabikendra/ai-artifacts/domain-modeling"><img src="https://agentmods.dev/badge/skills/thapaliyabikendra/ai-artifacts/domain-modeling/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/thapaliyabikendra/ai-artifacts/domain-modeling"><img src="https://agentmods.dev/badge/skills/thapaliyabikendra/ai-artifacts/domain-modeling.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 | $0.00060 | $0.01994 |
| Opus 5 | $0.00030 | $0.00997 |
| Sonnet 5 | $0.00012 | $0.00399 |
| Haiku 4.5 | $0.00006 | $0.00199 |
Grade A, and why
domain-modeling 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.
How it starts
The opening of the file, as written. The whole thing — 275 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Domain Modeling
Create and maintain business domain models with entities, relationships, business rules, and permission structures.
When to Use
- Creating new entity definitions
- Defining business rules (BR-XXX format)
- Designing permission and role structures
- Analyzing impact of domain changes
- Maintaining
docs/domain/documentation
Entity Definition Template
# {Entity} Entity
> **Aggregate Root**: Yes/No
> **Base Class**: `FullAuditedAggregateRoot<Guid>`
> **Table**: `{Entities}`
## Description
[Purpose of this entity in the domain]
## Properties
| Property | Type | Required | Constraints | Description |
|----------|------|----------|-------------|-------------|
| `Id` | `Guid` | Yes | PK | Unique identifier |
| `Name` | `string` | Yes | MaxLength(100) | Display name |
| `Email` | `string` | Yes | Email format, Unique | Contact email |
| `Status` | `{Entity}Status` | Yes | Enum | Current state |
| `CreatedAt` | `DateTime` | Yes | Auto-set | Creation timestamp |
## Relationships
| Relationship | Type | Target Entity | FK Column | Description |
|--------------|------|---------------|-----------|-------------|
| Parent | N:1 | `{ParentEntity}` | `{Parent}Id` | Belongs to parent |
| Children | 1:N | `{ChildEntity}` | - | Has many children |
## Business Rules
| Rule ID | Rule | Validation Point |
|---------|------|------------------|
| BR-{CAT}-001 | [Rule description] | [When validated] |
## State Transitions
[Initial] → [State1] → [State2] → [Final] ↓ [Cancelled]
## API Access
| Operation | Permission | Roles |
|-----------|------------|-------|
| List | `{Project}.{Entities}` | Admin, User |
| View | `{Project}.{Entities}` | Admin, User |
| Create | `{Project}.{Entities}.Create` | Admin |
| Update | `{Project}.{Entities}.Edit` | Admin |
| Delete | `{Project}.{Entities}.Delete` | Admin |
## Sample Data
| Id | Name | Status |
|----|------|--------|
| `{guid}` | Example 1 | Active |
Business Rule Format
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.
- 6d ago First seen · 275 lines · 60 tokens per session scan A abe0ba674fa4
domain-modeling is a skill published in the GitHub repository thapaliyabikendra/ai-artifacts (24 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 60 tokens to every session and 1,994 once invoked, about $0.0003 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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