cursor_rules
Cursor rules suitable for development using Elixir and Phoenix
Install / Use
npx skills add optimumBA/cursor_rulesInstalls into whichever agent you are using.
.cursorrules
Cursor IDE rules (legacy)
Quality Score
Category
Development & EngineeringSupported Platforms
Our assessment of cursor_rules
cursor_rules scores 58/100 on our quality scale, 4163rd of 4,617 Development & Engineering skills we index.
Its .cursorrules is 1.4 KB long, split into 5 sections with 3 code examples: moderately detailed.
It has 11 GitHub stars, so there is little community track record yet; judge it on its content.
Maintenance, license and trust
- The repository was last updated about 17 months ago. Expect some instructions to reference tool versions or APIs that have since changed.
- Our last check on 2026-10-21 found the source still online.
- It is released under the MIT license, a permissive license that allows use, modification and commercial use with attribution.
- Its trust signals score 80/100, with 2 cautions from licensing, adoption, age or documentation. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
Safety scan
No issues foundOur scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful.
AI review by kimi-k2.7-code on 2026-09-24. Automated pattern scan on 2026-09-24. It catches known dangerous patterns, not every risk — read a skill before letting an agent act on it.
cursor_rules compared with similar skills
All 4 of these similar skills score higher than cursor_rules; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| cursor_rules (this skill)by optimumBA | 58 | 11 | 17mo ago | .cursorrules |
| taste-skillby Leonxlnx | 100 | 110.6k | today | CLAUDE.md |
| ai-job-searchby ai-job-search-dev | 100 | 69.8k | today | CLAUDE.md |
| claude-howtoby luongnv89 | 100 | 46.6k | 2d ago | CLAUDE.md |
| algorithmic-artby anthropics | 100 | 177.9k | 44d ago | SKILL.md |
Frequently asked questions
- How do I install cursor_rules?
- Run
npx skills add optimumBA/cursor_rules. The install tabs above show the steps for each supported agent. - Which AI agents does cursor_rules work with?
- It is written for Cursor, as a .cursorrules file. Other agents that read the same format can often use it too.
- Is cursor_rules safe to use?
- Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful. It is MIT-licensed and scores 80/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is cursor_rules still maintained?
- The repository was last updated about 17 months ago. Expect some instructions to reference tool versions or APIs that have since changed.
Skill content
View source on GitHubOptimum Cursor rules
Cursor rules suitable for development using Elixir and Phoenix.
🚨 CRITICAL: Fix Cursor .mdc Editor Bug First
Before using these rules, you must fix a critical bug in Cursor's .mdc file handling:
Cursor's custom .mdc editor is severely buggy and causes multiple issues:
- Cursor jumps to description field during editing
- Auto-save disrupts workflow and causes focus issues
- Agent thinks it's editing files but changes don't persist to filesystem
- Files may appear empty when they contain content
Fix Required
Add this to your Cursor settings to disable the custom .mdc editor:
"workbench.editorAssociations": {
"*.mdc": "default"
}
How to apply:
- Open Cursor Settings (Cmd/Ctrl + ,)
- Search for "editorAssociations"
- Add the mapping above
- Restart Cursor if needed
This treats .mdc files as regular markdown, eliminating all editing bugs.
Setup
Add the repo as a git submodule to your Phoenix app.
git submodule add https://github.com/optimumBA/cursor_rules .cursor/rules
Rules should automatically be applied by Cursor.
They can live side-by-side with your existing rules.
Updating
To update the Cursor rules to the latest version:
git submodule foreach "git checkout main && git pull"
This ensures you get the latest improvements and bug fixes to the rules.
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Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.