write-lint-rules skillA
write-lint-rules is agent-read markdown (skill) from mendixlabs/mxcli: Write custom Starlark lint rules in .claude/lint-rules/ that run beside the built-ins under `mxcli lint`. Use when a project convention should be enforced automatically..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Writing Custom Starlark Lint Rules
Custom lint rules are written in Starlark (a Python-like language) and placed in `.claude/lint-rules/` as `.star` files. They run alongside the built-in rules when `mxcli lint -p app.mpr` is executed.
## Rule File Structure
Every `.star` file must define metadata constants and a `check()` function:
```python
RULE_ID = "CUSTOM001" # unique identifier
RULE_NAME = "MyRule" # Short display name
description = "What it checks" # One-line description
CATEGORY = "security" # Category: naming, quality, design, security, etc.
SEVERITY = "warning" # hint, info, warning, error
def check():
violations = []
# ... iterate data, find issues, append violations ...
return violations
```
### Catalog data requirements (`refs_to`, `cycles`, …)
Some builtins need a deeper catalog than the default fast build:
- `refs_to` / `refs_from` need **`REFRESH CATALOG FULL`** (the `refs` table).
- The graph-analysis builtins (`cycles`, `module_dependencies`, `community_of`,
`layer_of`, `centrality`, `god_nodes`, `integration_surface`) need
**`REFRESH CATALOG COMMUNITIES`** (the `graph_*` tables).
…Read the whole file at its exact version.
How to install
mdr add mendixlabs/mxcli/write-lint-rules@git:20260922.84449c7mdr add mendixlabs/mxcli/write-lint-rules@sha256:55e8e062142d1c2fPin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_m2st5t2xrvezrdzd)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260922.84449c7 latest | 2026-09-22 | 84449c7 | 26,579 B | A | view · diff |
| git:20260922.6fda7ec | 2026-09-22 | 6fda7ec | 26,492 B | A | view · diff |
| git:20260922.46bd1f7 | 2026-09-22 | 46bd1f7 | 26,263 B | A | view · diff |
| git:20260918.59db6e7 | 2026-09-18 | 59db6e7 | 24,872 B | A | view · diff |
| git:20260917.1b3adf7 | 2026-09-17 | 1b3adf7 | 23,505 B | A | view · diff |
| git:20260917.829eceb | 2026-09-17 | 829eceb | 22,343 B | A | view · diff |
| git:20260821.ff81a24 | 2026-08-21 | ff81a24 | 22,114 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (26579 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
mendixlabs/mxcli · 124 stars · license Apache-2.0 · pushed 2026-09-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_m2st5t2xrvezrdzd GET https://markdownregistry.com/api/v1/resolve?ref=mendixlabs/mxcli/write-lint-rules GET https://markdownregistry.com/api/v1/blob/55e8e062142d1c2fbaf8d91f4f5b8ab115ea263a8c6277c561bc5afb8d972c85
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