ca-feature

ca-feature is a skill for Claude Code, Codex from arbiterForge/codeArbiter. It costs 30 tokens per session (1,600 once invoked), scanned A, original, AGPL-3.0.

A guided feature workflow that turns an idea into an approved specification and then implements it using tests first.

In plain words
What is it for?
It is for planning and building new features through specification approval and test-driven development.
Why use it?
It gives feature work a defined path from discussion to code and uses test-first development, where tests are written before the implementation.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/arbiterforge/codearbiter/ca-feature
Any agent
npx skills add arbiterForge/codeArbiter --skill ca-feature
Clone the repo
git clone --depth 1 https://github.com/arbiterForge/codeArbiter

Made for: Claude Code, Codex.

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 ca-feature

README.md
[![agentmods](https://agentmods.dev/badge/skills/arbiterforge/codearbiter/ca-feature.svg)](https://agentmods.dev/skills/arbiterforge/codearbiter/ca-feature)
Your own site
<a href="https://agentmods.dev/skills/arbiterforge/codearbiter/ca-feature"><img src="https://agentmods.dev/badge/skills/arbiterforge/codearbiter/ca-feature.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,600 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00030 $0.01600
Opus 5 $0.00015 $0.00800
Sonnet 5 $0.00006 $0.00320
Haiku 4.5 $0.00003 $0.00160

Measured yesterday against content hash 1d15cba497ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ca-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/ca-codex/skills/ca-feature/SKILL.md · 106 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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 · 106 lines · 30 tokens per session scan A 1d15cba497ab

Subscribe to this mod's changes

ca-feature is a skill published in the GitHub repository arbiterForge/codeArbiter (141 stars, last pushed yesterday), licensed AGPL-3.0. It adds 30 tokens to every session and 1,600 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 2026-09-03.

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