Ready to supercharge your AI agents?

Install any skill in seconds. Free to start, no credit card required.

Get Started Free →

Backend Development Guidelines · microck | DecimalAI

codingby microck

Backend Development Guidelines

microck/backend-dev-guidelines

Source microck/ordinary-claude-skills ↗License NOASSERTION

Comprehensive backend development guide for Langfuse's Next.js 14/tRPC/Express/TypeScript monorepo.

SkillScore96Maintained

Automatic

Coding pack

Last verified 8/20/2026

What it changes

Passed 24 of 25 test cases with the skill, and 7 of 25 without it.

Without skill28%

With skill96%

Checks it passed that the model alone missed

Imports zod from zod/v4 module path.
Wraps the route using withMiddlewares.
Imports env object from @/src/env.mjs.

and 21 more in the full report

17 fixed7 passed either way1 still failing0 broke

Pass-rate lift: +68 pp
Tokens: +183%
Agent turns: 0%
Response time: -50%

Model gemini-3.6-flashMeasured 8/20/2026v124 of 25 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/microck-backend-dev-guidelines/SKILL.md https://app.decimal.ai/s/microck-backend-dev-guidelines/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add microck-backend-dev-guidelines, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/microck-backend-dev-guidelines/ and pins it in .decimal/skills.lock

decimalai skills add microck-backend-dev-guidelines

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/microck-backend-dev-guidelines/SKILL.md https://app.decimal.ai/s/microck-backend-dev-guidelines/SKILL.md

Raw file: /s/microck-backend-dev-guidelines/SKILL.md ↗ · machine-readable summary at /s/microck-backend-dev-guidelines.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 17 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 17

Prompt

We need to invoke createAndAddApiKeysToDb in a backend project initialization route. Which specific import subpath from @langfuse/shared should be used?

What was checked, without and with the skill
Checked	Without skill	With skill
Imports from @langfuse/shared/src/server/auth/apiKeys.	Missed	Passed

case-13 · gemini-3.6-flash · 8/20/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md558 linessingle file

Backend Development Guidelines

Purpose

Establish consistency and best practices across Langfuse's backend packages (web, worker, packages/shared) using Next.js 14, tRPC, BullMQ, and TypeScript patterns.

When to Use This Skill

Automatically activates when working on:

Creating or modifying tRPC routers and procedures
Creating or modifying public API endpoints (REST)
Creating or modifying BullMQ queue consumers and producers
Building services with business logic
Authenticating API requests
Accessing resources based on entitlements
Implementing middleware (tRPC, NextAuth, public API)
Database operations with Prisma (PostgreSQL) or ClickHouse
Observability with OpenTelemetry, DataDog, logger, and traceException
Input validation with Zod v4
Environment configuration from env variables
Backend testing and refactoring

Quick Start

UI: New tRPC Feature Checklist (Web)

Router: Define in features/[feature]/server/*Router.ts
Procedures: Use appropriate procedure type (protected, public)
Authentication: Use JWT authorization via middlewares.
Entitlement check: Access resources based on resource and role
Validation: Zod v4 schema for input
Service: Business logic in service file
Error handling: Use traceException wrapper
Tests: Unit + integration tests in __tests__/
Config: Access via env.mjs

SDKs: New Public API Endpoint Checklist (Web)

Track record

Benchmark

24 / 25

test cases passed, vs 7 / 25 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

microck / ordinary-claude-skills

skills_all/backend-dev-guidelines/SKILL.md

View on GitHub ↗

License NOASSERTIONImported 8/3/2026Version v1

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

langfuse/backend-dev-guidelinesBuild or review Langfuse backend code. Use for tRPC routers, public REST APIs, BullMQ processors, services, middleware, Prisma or ClickHouse access, OpenTelemetry, Zod, environment configuration, or backend tests.Close match+52 pp pass-rate lift

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Backend Development Guidelines

Purpose

When to Use This Skill

Quick Start

UI: New tRPC Feature Checklist (Web)

SDKs: New Public API Endpoint Checklist (Web)

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

Related skills