Supabase Skills
Supabase Skills is an writing AI skill with a core value of Backend optimization rules. It
helps developers solve real-world problems in the writing domain, boosting
efficiency, automating repetitive tasks, and optimizing workflows.
Backend optimization rules. Writing correct Row Level Security (RLS) policies and performant Postgres queries.
Quick Facts
mkdir -p ./skills/supabase-skills && curl -sfL https://raw.githubusercontent.com/mayurrathi/awesome-agent-skills/main/skills/supabase-skills/SKILL.md -o ./skills/supabase-skills/SKILL.mdRun in terminal / PowerShell. Requires curl (Unix) or PowerShell 5+ (Windows).
Skill Content
# 2.3.2 Supabase Skills
When using Supabase as the backend/BaaS, enforce these database, security, and performance rules strictly.
1. Row Level Security (RLS)
- **Deny by Default:** All tables must have RLS enabled immediately (`ALTER TABLE X ENABLE ROW LEVEL SECURITY;`).
- **Policy Granularity:** Write explicit `SELECT`, `INSERT`, `UPDATE`, and `DELETE` policies referencing `auth.uid()`.
- **Security Definer:** Be extremely careful with Edge Functions or DB Functions using `SECURITY DEFINER`.
2. Performance & Postgres
- **Indexes:** Always create indexes on foreign keys and columns frequently used in `WHERE`, `ORDER BY`, or `JOIN` clauses.
- **View Alternatives:** Use materialized views for heavy analytical queries instead of querying raw tables repeatedly.
3. Edge Functions
- **TypeScript:** Write Edge Functions in TypeScript using Deno.
- **Payload Validation:** Validate incoming JSON structures securely before passing them to the database.
🎯 Best For
- Security auditors
- DevSecOps teams
- Compliance officers
- Claude users
- Content creators
💡 Use Cases
- Auditing dependencies for known CVEs
- Scanning API endpoints for auth gaps
- Content creation
- Style guide enforcement
📖 How to Use This Skill
- 1
Install the Skill
Copy the install command from the Terminal tab and run it. The SKILL.md file downloads to your local skills directory.
- 2
Load into Your AI Assistant
Open Claude and reference the skill. Paste the SKILL.md content or use the system prompt tab.
- 3
Apply Supabase Skills to Your Work
Provide context for your task — paste source material, describe your audience, or share existing work to guide the AI.
- 4
Review and Refine
Edit the AI output for accuracy, tone, and completeness. Add human insight where the AI lacks context.
❓ Frequently Asked Questions
Can this replace a dedicated SAST tool?
AI-based security review is complementary to SAST tools. Use it as a first-pass filter, not a replacement.
Can Supabase Skills maintain my brand voice?
Yes — provide style guides or example content in your prompt for consistent brand-aligned output.
How do I install Supabase Skills?
Copy the install command from the Terminal tab and run it. The skill downloads to ./skills/supabase-skills/SKILL.md, ready to use.
Can I customize this skill for my team?
Absolutely. Edit the SKILL.md file to add team-specific instructions, examples, or workflows.
⚠️ Common Mistakes to Avoid
Only scanning surface-level issues
Deep security review requires understanding your app architecture, not just regex patterns.
Publishing unedited drafts
AI writing needs human editing for facts, flow, and authentic voice.