feature

feature is a skill for Claude Code from hoblin/claude-ruby-marketplace. It costs 25 tokens per session (1,006 once invoked), scanned A, original, MIT.

A procedure for delivering a feature or chore from an issue link or plain description through a pull-request-ready state. It covers repository setup, branch creation, issue tracking, implementation, and review preparation.

In plain words
What is it for?
Use it for a new feature or maintenance task, starting with an issue or description and ending with a prepared pull request.
Why use it?
It puts the many steps of development work into one workflow so setup, tracking, coding, and review are not handled separately or forgotten.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: mentions CLAUDE.md; mentions subagents.

Part of the rpi plugin — 13 skills, 12 agents shipped together

Good fit Use it for a new feature or maintenance task, starting with an issue or description and ending with a prepared pull request.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hoblin/claude-ruby-marketplace/feature
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add hoblin/claude-ruby-marketplace --skill feature
Clone the repo
git clone --depth 1 https://github.com/hoblin/claude-ruby-marketplace

Made for: Claude Code.

Or install rpi, the plugin that ships this one along with the rest of its 13 skills, 12 agents.

Wrote 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.

agentmods badge for feature

README.md
[![agentmods](https://agentmods.dev/badge/skills/hoblin/claude-ruby-marketplace/feature/github.svg)](https://agentmods.dev/skills/hoblin/claude-ruby-marketplace/feature)
Your own site
<a href="https://agentmods.dev/skills/hoblin/claude-ruby-marketplace/feature"><img src="https://agentmods.dev/badge/skills/hoblin/claude-ruby-marketplace/feature/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for feature

Your own site · 80×15
<a href="https://agentmods.dev/skills/hoblin/claude-ruby-marketplace/feature"><img src="https://agentmods.dev/badge/skills/hoblin/claude-ruby-marketplace/feature.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,006 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00025 $0.01006
Opus 5 $0.00013 $0.00503
Sonnet 5 $0.00005 $0.00201
Haiku 4.5 $0.00003 $0.00101

Measured yesterday against content hash 93da47bcfb8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

feature 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 yesterday.

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.

plugins/rpi/skills/feature/SKILL.md · 116 lines

How it starts

The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Input Format

/rpi:feature <FEATURE_DESCRIPTION> [additional instructions]
  • FEATURE_DESCRIPTION: issue URL or plain description (required)
  • additional instructions (optional): constraints, focus areas, or any custom guidance

Examples:

/rpi:feature https://linear.app/team/ENG-1234
/rpi:feature ENG-1234 the SpaceshipLauncher class must inherit from BaseVehicle

Context

Create and complete a new feature or chore for this project, from branch creation to PR readiness. Input can be an issue URL or a plain description.

With issue URL: Extract ID, fetch ticket details. With description only: Create new issue in the appropriate project.

Pass any additional instructions from user input through to all subagents and apply them during implementation.

Workflow

Step 1: Setup

Pull latest base branch (usually main or master) Create feature branch: <type>/<issue-id>-<short-description> (e.g., feature/eng-1234-add-api-endpoint) Update the ticket: assign to "me", change status to "In Progress"

Step 2: Gather Historical Context

Spawn rpi:thoughts-analyzer with ticket reference, title, description, acceptance criteria, and any additional instructions from user input.

DO NOT proceed to Step 3 until this subagent returns. Its output is required input for Step 3.

Step 3: Research Codebase

After Step 2 completes, spawn research subagents in parallel, passing ticket info, historical context output from Step 2, and any additional instructions from user input:

rpi:codebase-pattern-finder - find similar implementations to model after rpi:codebase-analyzer - analyze the area being modified

Wait for both subagents to complete before proceeding.

Step 4: Implementation

Activate the rpi:document-code skill before modifying any file. Follow Rails best practices, CLAUDE.md, and any additional instructions from user input. Keep code clean and DRY. When modifying code: fix lurking bugs, refactor, add missing tests and regression tests. Ensure solid RSpec coverage with well-documented business logic (viewable with --format documentation). Review changes for completeness.

Read the full file on GitHub · 116 lines

Changes

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.

  1. yesterday First seen · 116 lines · 25 tokens per session scan A 93da47bcfb8e

Subscribe to this mod's changes

feature is a skill published in the GitHub repository hoblin/claude-ruby-marketplace (37 stars, last pushed yesterday), licensed MIT. It adds 25 tokens to every session and 1,006 once invoked, about $0.0001 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 2026-09-07.