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/mendixlabs/mxcli/mdl-entitiesnpx skills add mendixlabs/mxcli --skill mdl-entitiesgit clone --depth 1 https://github.com/mendixlabs/mxcliWhat 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 | $0.00039 | $0.02267 |
| Opus 5 | $0.00019 | $0.01133 |
| Sonnet 5 | $0.00008 | $0.00453 |
| Haiku 4.5 | $0.00004 | $0.00227 |
Grade A, and why
mdl-entities 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 yesterday.
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 — 378 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MDL Entity Syntax Reference
Complete syntax reference for creating entities, attributes, and associations.
Entity Types
| Type | Keyword | Stored in DB | Use Case |
|---|---|---|---|
| Persistent | create persistent entity |
Yes | Business data |
| Non-Persistent | create non-persistent entity |
No | Temporary/view data |
| View | create view entity |
No (OQL query) | Aggregated/computed data |
Persistent Entity
/**
* Customer entity for storing customer data
*/
create persistent entity Module.Customer (
-- String attributes
Name: string(100) not null,
Email: string(200),
Code: string(20) unique,
-- Numeric attributes
Age: integer,
CreditLimit: decimal,
-- Boolean
IsActive: boolean default true,
-- Date/Time
BirthDate: date,
-- Use autocreateddate (not datetime) to record when the object was created.
-- 'CreatedDate' as a plain datetime triggers lint error MDL020.
CreatedDate: autocreateddate,
-- Enumeration
status: Module.CustomerStatus default Active,
-- Auto-number (REQUIRES a seed via `default N` — without it the build fails
-- CE7247 "Value cannot be empty")
CustomerNumber: autonumber default 1
);
/
Non-Persistent Entity
Used for temporary data, form parameters, or calculated values.
/**
* Search parameters for customer search form
*/
create non-persistent entity Module.CustomerSearchParams (
SearchName: string(100),
SearchEmail: string(200),
MinCreditLimit: decimal,
IncludeInactive: boolean default false
);
/
Attribute Types
| Type | Syntax | Example |
|---|---|---|
| String | Name: string(length) |
Name: string(100) |
| Integer | Name: integer |
count: integer |
| Long | Name: long |
BigNumber: long |
| Decimal | Name: decimal |
Amount: decimal |
| Boolean | Name: boolean |
IsActive: boolean |
| DateTime | Name: datetime |
CreatedAt: datetime |
| Date | Name: date |
BirthDate: date |
| Enumeration | Name: Module.EnumName |
status: Module.Status |
| AutoNumber | Name: autonumber default 1 |
Code: autonumber default 1 (seed required) |
| Binary | Name: binary |
FileData: binary |
| Hashed String | Name: hashedstring |
password: hashedstring |
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.
- yesterday First seen · 378 lines · 39 tokens per session scan A 1a640a0aa99f
mdl-entities is a skill published in the GitHub repository mendixlabs/mxcli (115 stars, last pushed 2d ago), licensed Apache-2.0. It adds 39 tokens to every session and 2,267 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 2026-08-30.
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