Feature Designer

Feature Designer is an AI Engineering skill for Claude Code, published by janekbaraniewski in openusage.

187 stars16 forkson janekbaraniewski/openusageAdded 2026/09/06+2% in starsRepository updated 2026/09/03

ai-costai-cost-trackingai-spendingai-usageclaudeclaude-codeclaude-code-usageclaude-usage-monitorcodexcoding-agentscopilotcopilot-usagecursorgemini-clillm-usageopenrouteropenrouter-usagetmux

Install in seconds

Install Feature Designer

Copy Feature Designer into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/janekbaraniewski/openusage/tree/main/docs/skills/design-feature ~/.claude/skills/design-feature

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/janekbaraniewski/openusage.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: docs/skills/design-feature/SKILL.md in janekbaraniewski/openusage
Installs to: ~/.claude/skills/design-feature
Collection: One of 14 skills cataloged from this repository
Category: AI Engineering — 3278 skills

What Feature Designer does

Feature Designer helps plan and specify OpenUsage changes with structured design docs and implementation tasks. Use it for features that touch multiple subsystems or when you need an explicit architecture plan.

Feature Designer is cataloged under AI Engineering on DirSkills. Feature Designer comes from a repository tagged ai-cost, ai-cost-tracking, ai-spending, ai-usage and claude.

Documentation

README

Excerpt

OpenUsage Feature Designer

Invocation: When a user asks to design, plan, or architect a feature — OR when a proposed change touches 3+ subsystems (core, providers, TUI, config, detect, daemon, telemetry).

Phase 0 — Quiz (MANDATORY)

Before any design work, gather answers to ALL of these. Research the codebase yourself if the user doesn't know.

This is the opening of the README. Read the full README on GitHub.

Commands Feature Designer provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

/implement-feature

Frequently asked about Feature Designer

What else does janekbaraniewski publish alongside Feature Designer?
Feature Designer is one of 14 skills that DirSkills catalogs from janekbaraniewski/openusage, the repository it ships in. Its siblings there include Add New Provider, Cut Release and Cut Release. Each one is a separate skill with its own page in this directory, installs the same way Feature Designer does, and is maintained by janekbaraniewski in that same repository. The rest of the collection is listed on the janekbaraniewski/openusage page.
How does Feature Designer compare to other AI Engineering skills?
Feature Designer ranks #2984 by stars among the 3278 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Feature Designer against them. Open each page to compare what they document and how they install.