developing-features SKILL.md skillA

developing-features from cristhianzl/claude-skills-czl is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add cristhianzl/claude-skills-czl/developing-features@git:20260901.befbe7a

Pins git:20260901.befbe7a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
cristhianzl/claude-skills-czl
Path
configs/langflow/skills/developing-features/SKILL.md
Versions recorded
5
Latest version
git:20260901.befbe7a, committed Sep 1, 2026
First version recorded
Jun 23, 2026
Size
13,148 bytes
Repository stars
5
License
MIT

Write production code in Langflow with security-first thinking, SOLID design, pragmatic principles, observability, and strict file-structure limits — tuned for Langflow conventions (uv workspaces, SQLModel, lfx vs langflow-base split, pre-commit invoked via uv run). Use when implementing a new feature, designing a service, refactoring backend code, adding an API route, or whenever the task is "build production code" rather than fix a bug or write tests. This is the default for feature and…

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

# Developing Features

Production code. Secure by default, structured by responsibility, simple until proven otherwise.

## Read first (always)

List `learnings/` and read every file relevant to the current task. Project-specific conventions, banned patterns, or security constraints live there and override the defaults in this SKILL.md. If a learning conflicts with this file, **the learning wins** — mention it to the user.

## Tradeoff — when to apply, when to lighten up

Apply the full discipline when the code is **production-bound, multi-user, or persists state**. Lighten the formality (still keep security and naming) when the code is a one-off script, a throwaway exploration, or a sample under 50 lines. Don't impose SRP/DIP/file-structure ceremony on a 10-line CLI helper.

## Pre-implementation check (mandatory)

Before writing any code, answer these six questions:

1. **What am I trusting here that I haven't verified?** External inputs, tokens, signatures, IDs, flags, headers — anything from outside.
2. **What is the blast radius if this goes wrong?** Can an attacker read other users' data? Forge events? Execute arbitrary operations? Exhaust resources?
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add cristhianzl/claude-skills-czl/developing-features@sha256:a252f172ea8ee26d

The line at the top of this page pins the label git:20260901.befbe7a, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_o7pgta6raskaavh5.svg)](https://markdownregistry.com/a/art_o7pgta6raskaavh5)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Jun 23, 2026 and Sep 1, 2026, about one every 18 days.

versioncommittedcommitsizeaudit
git:20260901.befbe7a latest2026-09-01 befbe7a 13,148 BA view · diff
git:20260813.0b7d6d32026-08-13 0b7d6d3 12,737 BA view · diff
git:20260625.6520aec2026-06-25 6520aec 11,823 BA view · diff
git:20260623.1e7c3452026-06-23 1e7c345 11,578 BA view · diff
git:20260623.5f8b4972026-06-23 5f8b497 11,400 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (13148 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

GitHub

cristhianzl/claude-skills-czl · 5 stars · license MIT · pushed 2026-09-24 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_o7pgta6raskaavh5
GET https://markdownregistry.com/api/v1/resolve?ref=cristhianzl/claude-skills-czl/developing-features
GET https://markdownregistry.com/api/v1/blob/a252f172ea8ee26d22598adb0e9767bb4eabd1628e56c242ee648785c5bfddb0

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.

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Every file in cristhianzl/claude-skills-czl

Other files named developing-features

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