postgresql-schema SKILL.md skillA
postgresql-schema from tekkiiiii/the-agency is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add tekkiiiii/the-agency/postgresql-schema@git:20261007.04729edPins git:20261007.04729ed in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- tekkiiiii/the-agency
- Path
skills/postgresql-schema/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261007.04729ed, committed Oct 7, 2026
- First version recorded
- May 8, 2026
- Size
- 3,685 bytes
- Repository stars
- 6
- License
- none declared
Design PostgreSQL schemas for common patterns: multi-tenant SaaS, reservation systems, CRM, e-commerce. Outputs Prisma migrations for Neon/Supabase, raw SQL for Laravel, and schema diagrams. Triggers when user asks to design a database, PostgreSQL schema, design database tables, or create database migrations.
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
# PostgreSQL Schema Designer
## Multi-Tenant SaaS Schema
```sql
-- Option A: Shared schema with tenant_id (row-level security)
CREATE TABLE tenants (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
name VARCHAR(255) NOT NULL,
slug VARCHAR(100) UNIQUE NOT NULL,
plan VARCHAR(50) DEFAULT 'starter',
created_at TIMESTAMPTZ DEFAULT NOW()
);
CREATE TABLE users (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
tenant_id UUID NOT NULL REFERENCES tenants(id),
email VARCHAR(255) NOT NULL,
role VARCHAR(50) DEFAULT 'member',
created_at TIMESTAMPTZ DEFAULT NOW(),
UNIQUE(tenant_id, email)
);
CREATE TABLE resources (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
tenant_id UUID NOT NULL REFERENCES tenants(id),
name VARCHAR(255),
created_at TIMESTAMPTZ DEFAULT NOW()
);
-- Row Level Security (Supabase)
ALTER TABLE resources ENABLE ROW LEVEL SECURITY;
CREATE POLICY "Tenant isolation" ON resources
FOR ALL USING (tenant_id = current_setting('app.tenant_id')::UUID);
```
## Reservation System Schema
```sql
CREATE TABLE services (
id BIGSERIAL PRIMARY KEY,
name VARCHAR(255) NOT NULL,
slug VARCHAR(100) UNIQUE NOT NULL,
price DECIMAL(10,2) NOT NULL,
…Read the whole file at its exact version.
How to install
mdr add tekkiiiii/the-agency/postgresql-schema@sha256:e0bb1b6c2fbcab97The line at the top of this page pins the label git:20261007.04729ed, 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_dcqg5rag4q5mivna)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between May 8, 2026 and Oct 7, 2026, about one every 152 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.04729ed latest | 2026-10-07 | 04729ed | 3,685 B | A | view · diff |
| git:20260508.65c1b0b | 2026-05-08 | 65c1b0b | 3,650 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 (3685 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
tekkiiiii/the-agency · 6 stars · license none declared · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dcqg5rag4q5mivna GET https://markdownregistry.com/api/v1/resolve?ref=tekkiiiii/the-agency/postgresql-schema GET https://markdownregistry.com/api/v1/blob/e0bb1b6c2fbcab97697aa79faa6e842399cec9418ab6b0367c887413ad685cf7
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.