feature-development

A workflow template for implementing features in the ClaudeTerminal application. It outlines how to understand the current behavior, make a focused change, test the affected files, and summarize remaining review needs.

In plain words
What is it for?
Use it to plan feature changes across source files, components, and hooks, then guide implementation, testing, documentation updates, and commit preparation.
Why use it?
It gives feature work a repeatable structure without forcing developers to follow a rigid script or edit unrelated parts of the project.

Command for Claude Code

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 commands/talayash/agentrium/feature-development
Clone the repo
git clone --depth 1 https://github.com/talayash/agentrium

Made for: Claude Code.

Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 189 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00014 $0.00189
Opus 5 $0.00007 $0.00095
Sonnet 5 $0.00003 $0.00038
Haiku 4.5 $0.00001 $0.00019

Measured 2d ago against content hash dd6790ac5d63, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

feature-development 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 2d ago.

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.

.claude/commands/feature-development.md · 37 lines

What it actually says

/feature-development

Use this workflow when working on feature-development in claude-terminal.

Goal

Standard feature implementation workflow

Common Files

  • src/*
  • src/components/*
  • src/hooks/*

Suggested Sequence

  1. Understand the current state and failure mode before editing.
  2. Make the smallest coherent change that satisfies the workflow goal.
  3. Run the most relevant verification for touched files.
  4. Summarize what changed and what still needs review.

Typical Commit Signals

  • Add feature implementation
  • Add tests for feature
  • Update documentation

Notes

  • Treat this as a scaffold, not a hard-coded script.
  • Update the command if the workflow evolves materially.
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. 2d ago First seen · 37 lines · 14 tokens per session scan A dd6790ac5d63

Subscribe to this mod's changes

feature-development is a command published in the GitHub repository talayash/agentrium (39 stars, last pushed 2d ago), licensed MIT. It adds 14 tokens to every session and 189 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 2026-08-30.