Borrowing it
Nothing to install: this file belongs to JNZader/repoforge. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/JNZader/repoforge/main/.claude/skills/backend/SKILL.mdgit clone --depth 1 https://github.com/JNZader/repoforgeWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/jnzader/repoforge/backend)<a href="https://agentmods.dev/skills/jnzader/repoforge/backend"><img src="https://agentmods.dev/badge/skills/jnzader/repoforge/backend.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00044 | $0.00464 |
| Opus 5 | $0.00022 | $0.00232 |
| Sonnet 5 | $0.00009 | $0.00093 |
| Haiku 4.5 | $0.00004 | $0.00046 |
Grade A, and why
backend-layer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
backend-layer
This skill covers the backend functionality of the RepoForge application.
Trigger: When working in backend/ directory and its main responsibility is to manage server-side logic.
Quick Reference
| Task | Pattern |
|---|---|
| Configure logging | configure_logging() |
| Run migrations | run_migrations_online() |
Critical Patterns (Summary)
- Middleware Configuration: Set up custom middleware for request handling.
- Database Migration: Manage database schema changes using Alembic.
Critical Patterns (Detailed)
Middleware Configuration
Set up custom middleware for handling requests, such as logging and authentication.
# apps/server/app/main.py
app.add_middleware(correlation_id_middleware)
app.add_middleware(request_logging_middleware)
app.add_middleware(security_headers_middleware)
Database Migration
Manage database schema changes using Alembic for version control.
# apps/server/alembic/env.py
run_migrations_online()
When to Use
- When implementing new API endpoints that require authentication.
- When modifying database schemas and needing to run migrations.
Commands
# To run the server
uvicorn apps.server.app.main:app --reload
# To run migrations
alembic upgrade head
Anti-Patterns
Don't: Change API response formats without updating the frontend
This can lead to broken integrations and user-facing errors.
# BAD
return {"message": "success"} # Frontend expects a different structure
What ships with it
8 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 7d ago First seen · 87 lines · 44 tokens per session scan A 184ce0095424
backend-layer is a skill published in the GitHub repository JNZader/repoforge (5 stars, last pushed 12d ago), licensed MIT. It adds 44 tokens to every session and 464 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
redis-patterns
Redis data structure patterns, caching strategies, distributed locks, rate limiting, pub/sub, and connection management for production applications.
mysql-patterns
MySQL and MariaDB schema, query, indexing, transaction, replication, and connection-pool patterns for production backends.
backend-patterns
Backend architecture patterns, API design, database optimization, and server-side best practices for Node.js, Express, and Next.js API routes. Use when building or reviewing Node.js, Express, or Next.js API routes and their data access.
benchling-integration
Benchling R&D platform integration. Access registry (DNA, proteins), inventory, ELN entries, workflows via API, build Benchling Apps, query Data Warehouse, for lab data management automation.
groq-inference
Ultra-fast LLM inference on custom LPU hardware. OpenAI-compatible API at api.groq.com. Lowest latency in the industry (500-1000+ tok/s). Supports chat completions, vision, audio (Whisper STT + TTS), tool calling, JSON mode, and streaming. Free tier available. Inference only — no training.
stripe-projects
Use when the user wants to provision infrastructure or third-party services using Stripe Projects. Triggers: "I need a database", "set up auth", "add caching", "give me a Postgres", "provision Redis", "I need hosting", "add a vector DB", "get me an API key for X", "get credentials for X", "sign up for a service", "set…