dmc-best-practices SKILL.md skillA
dmc-best-practices from bjornmelin/dev-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add bjornmelin/dev-skills/dmc-best-practices@git:20260512.e9ef1cfPins git:20260512.e9ef1cf in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- bjornmelin/dev-skills
- Path
skills/dmc-best-practices/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260512.e9ef1cf, committed May 12, 2026
- First version recorded
- Mar 8, 2026
- Size
- 5,970 bytes
- Repository stars
- 8
- License
- none declared
Dash Mantine Components (DMC) best practices and performance optimization guidelines. Use this skill when writing, reviewing, or refactoring Dash apps with DMC to ensure optimal patterns. Triggers on: DMC components, Mantine styling, Dash callbacks, dcc.Store, theming, or performance optimization in Plotly Dash applications.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# DMC Best Practices Definitive best practices for building Dash applications with Dash Mantine Components. Rules are organized by impact level and category. ## Priority Categories | Priority | Category | Impact | Prefix | Rules | |----------|----------|--------|--------|-------| | 1 | Architecture | CRITICAL | `arch-` | 4 | | 2 | Callbacks | CRITICAL/HIGH | `callback-` | 6 | | 3 | Styling | HIGH/MEDIUM | `style-` | 5 | | 4 | Data Management | HIGH | `data-` | 4 | | 5 | Performance | MEDIUM-HIGH | `perf-` | 3 | | 6 | Forms & Validation | MEDIUM | `form-` | 2 | | 7 | Theming | MEDIUM | `theme-` | 3 | | 8 | DMC v2.x Migrations | MEDIUM | `v2-` | 2 | | 9 | Accessibility | MEDIUM | `a11y-` | 1 | ## Top 10 Critical Rules 1. **Wrap layout in MantineProvider** - All DMC components require it 2. **Never modify global variables** in callbacks - Breaks multi-worker deployments 3. **Use State not Input** for values that shouldn't trigger callbacks 4. **Define callbacks before app.run()** - Registration must happen first 5. **Prevent circular callbacks** - Outputs feeding inputs cause infinite loops 6. **Return JSON-serializable values** - Only dict, list, str, number, bool, None …
Read the whole file at its exact version.
How to install
mdr add bjornmelin/dev-skills/dmc-best-practices@sha256:cfabf10ede44bd66The line at the top of this page pins the label git:20260512.e9ef1cf, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_vgf6oibmuiytyvww)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Mar 8, 2026 and May 12, 2026, about one every 65 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260512.e9ef1cf latest | 2026-05-12 | e9ef1cf | 5,970 B | A | view · diff |
| git:20260308.4723f7b | 2026-03-08 | 4723f7b | 5,013 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 (5970 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
bjornmelin/dev-skills · 8 stars · license none declared · pushed 2026-10-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vgf6oibmuiytyvww GET https://markdownregistry.com/api/v1/resolve?ref=bjornmelin/dev-skills/dmc-best-practices GET https://markdownregistry.com/api/v1/blob/cfabf10ede44bd668b01102d5ece2e579a50fc668a2cafcfae8f0a2e200a2d88
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.