backend SKILL.md skillA
backend 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/backend@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/backend/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261007.04729ed, committed Oct 7, 2026
- First version recorded
- May 8, 2026
- Size
- 3,212 bytes
- Repository stars
- 6
- License
- none declared
Use when building or reviewing backend systems: APIs, database schemas, auth, file uploads, webhooks, microservices, query optimization (Node, Python, Go, Java). Covers layered architecture, REST, JWT, error handling, logging, N+1 and indexing. Not for reviewing only (use /backend-critique).
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
# Backend Development Skill
## Before Building — Clarify:
1. **Framework/Language**: Node.js (Express/Fastify/Hono), Python (FastAPI/Django), Go, Java Spring?
2. **Database**: Relational (PostgreSQL/MySQL) or NoSQL (MongoDB/Redis)?
3. **Auth method**: JWT, sessions, OAuth, API keys?
4. **Deployment target**: Serverless, containers, VPS?
5. **Scale expectations**: Requests/sec, data volume?
## API Design Principles
### REST Best Practices
- Use nouns for resources, verbs for HTTP methods
- `GET /users/:id` not `GET /getUser`
- Consistent response envelope:
```json
{
"data": {},
"error": null,
"meta": { "page": 1, "total": 100 }
}
```
- Use correct HTTP status codes (200, 201, 400, 401, 403, 404, 422, 500)
- Version your API: `/api/v1/...`
### Request Validation
- Validate and sanitize ALL inputs before processing
- Return descriptive 422 errors with field-level messages
- Use Zod (TS), Pydantic (Python), or class-validator
## Database Patterns
### Schema Design
- Use UUIDs over sequential IDs for public-facing IDs
- Always include `created_at`, `updated_at` timestamps
- Index foreign keys and frequently queried columns
…Read the whole file at its exact version.
How to install
mdr add tekkiiiii/the-agency/backend@sha256:2b85113269b3c4e1The 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_ylyrxl5z3fgkhmde)
3 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 | 3,212 B | A | view · diff |
| git:20260508.9e8707b | 2026-05-08 | 9e8707b | 4,139 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 (3212 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_ylyrxl5z3fgkhmde GET https://markdownregistry.com/api/v1/resolve?ref=tekkiiiii/the-agency/backend GET https://markdownregistry.com/api/v1/blob/2b85113269b3c4e181363455fd0aa39ccadca62c9951ff72db6d2369ebd31ede
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.
More from tekkiiiii/the-agency
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