feature

feature is a command for coding agents from tonychen15/xReview. It costs 0 tokens per session (125 once invoked), scanned A, original, MIT.

A command that uses xReview to guide feature implementation and then sends the result for review.

In plain words
What is it for?
Use it to implement a feature described in an objective, record the review session in .review/REVIEW.md, and start an xReview review.
Why use it?
It adds a defined review step after a feature is built, helping catch problems before the work is considered done.

Command

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/tonychen15/xreview/feature
Clone the repo
git clone --depth 1 https://github.com/tonychen15/xReview

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/commands/tonychen15/xreview/feature.svg)](https://agentmods.dev/commands/tonychen15/xreview/feature)
Your own site
<a href="https://agentmods.dev/commands/tonychen15/xreview/feature"><img src="https://agentmods.dev/badge/commands/tonychen15/xreview/feature.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 125 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 $0.00000 $0.00125
Opus 5 $0.00000 $0.00063
Sonnet 5 $0.00000 $0.00025
Haiku 4.5 $0.00000 $0.00013

Measured 4d ago against content hash a84db434037b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 4d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • refactor — 88% identical, 6 lines differ
claude/commands/feature.md · 15 lines

What it actually says

/feature — Implement a feature with xReview

IMPORTANT: You MUST run this shell command FIRST before doing anything else:

xreview claude feature "$ARGUMENTS"

Read the script's output carefully. It tells you the session number and what to append to .review/REVIEW.md.

Then follow these steps:

  1. Append the session header and "Implementing" line to .review/REVIEW.md (use the exact format from the script output)
  2. Implement the feature described in the objective
  3. When done, run xreview review to trigger the reviewer
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. 4d ago First seen · 15 lines · 0 tokens per session scan A a84db434037b

Subscribe to this mod's changes

feature is a command published in the GitHub repository tonychen15/xReview (2 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 125 tokens. 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 2026-08-31.