fettle: Command for Claude Code

.opencode/commands/fettle-pr-review.md

fettle-pr-review is a command for Claude Code, OpenCode from MilindGaharwar/fettle. It costs 17 tokens per session (123 once invoked), scanned A, original, Apache-2.0.

A command that creates a pull request review report from Fettle checks. A pull request is a proposed code change; the report covers code quality, test coverage, complexity, and breaking changes.

In plain words
What is it for?
Use it to review a pull request, present its changes and checks, and offer fixes for quality-scan errors.
Why use it?
It gathers several checks into one review and makes issues to address before merging easier to find.

Command for Claude CodeOpenCode

Written for Claude Code and OpenCode: shipped in a Claude Code plugin, but also installed under .opencode/.

This is MilindGaharwar/fettle's own configuration. It tells Claude Code and OpenCode how to work on fettle itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything fettle configures →

Part of the fettle plugin — 34 commands, 4 hooks shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to MilindGaharwar/fettle. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/MilindGaharwar/fettle/main/.opencode/commands/fettle-pr-review.md
Clone the repo
git clone --depth 1 https://github.com/MilindGaharwar/fettle

Made for: Claude Code, OpenCode.

Or install fettle, the plugin that ships this one along with the rest of its 34 commands, 4 hooks.

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 fettle-pr-review

README.md
[![agentmods](https://agentmods.dev/badge/commands/milindgaharwar/fettle/fettle-pr-review/github.svg)](https://agentmods.dev/commands/milindgaharwar/fettle/fettle-pr-review)
Your own site
<a href="https://agentmods.dev/commands/milindgaharwar/fettle/fettle-pr-review"><img src="https://agentmods.dev/badge/commands/milindgaharwar/fettle/fettle-pr-review/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 fettle-pr-review

Your own site · 80×15
<a href="https://agentmods.dev/commands/milindgaharwar/fettle/fettle-pr-review"><img src="https://agentmods.dev/badge/commands/milindgaharwar/fettle/fettle-pr-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 123 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 $0.00017 $0.00123
Opus 5 $0.00009 $0.00062
Sonnet 5 $0.00003 $0.00025
Haiku 4.5 $0.00002 $0.00012

Measured 8d ago against content hash 5d78013982d7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

fettle-pr-review 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 8d 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.

.opencode/commands/fettle-pr-review.md · 20 lines

What it actually says

Generate a structured PR review by orchestrating existing Fettle checks.

Procedure

  1. Run the orchestrator:

    python3 -m fettle.pr_review --root .
    
  2. Present the report with sections: changes, quality scan, coverage, breaking changes, checklist.

  3. Highlight any issues that need attention before merging.

  4. Offer to fix quality scan errors if present.

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. 8d ago First seen · 20 lines · 17 tokens per session scan A 5d78013982d7

Subscribe to this mod's changes

fettle-pr-review is a command published in the GitHub repository MilindGaharwar/fettle (2 stars, last pushed 4d ago), licensed Apache-2.0. It adds 17 tokens to every session and 123 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 2026-08-31.