improve-max-lines-per-function

name	improve-max-lines-per-function
description	This skill should be used when reducing the maximum lines per method threshold and fixing all violations. It updates the RuboCop configuration, identifies methods exceeding the new limit, generates a brief with refactoring strategies, and creates a plan with tasks to split oversized methods.
allowed-tools	["Read","Bash","Glob","Grep"]

Reduce Max Lines Per Method

Target threshold: $ARGUMENTS lines per method

If no argument provided, prompt the user for a target.

Step 1: Gather Requirements

1. Read current config from .rubocop.yml or .rubocop.local.yml (Metrics/MethodLength)
2. Run RuboCop with the target threshold to find violations:

   bundle exec rubocop --only Metrics/MethodLength --format json 2>&1
   

3. Note for each violation:
   • File path and line number
   • Method name
   • Current line count

If no violations at $ARGUMENTS, report success and exit.

Step 2: Compile Brief and Delegate

Compile the gathered information into a structured brief:

Reduce max lines per method threshold to $ARGUMENTS.

Methods exceeding threshold (ordered by line count):
1. [file:method_name] (lines: X, target: $ARGUMENTS) - Line Y
2. ...

Configuration change: .rubocop.local.yml, Metrics/MethodLength Max to $ARGUMENTS

Refactoring strategies: extract methods, early returns, extract conditions, use lookup hashes, consolidate logic

Verification: `bundle exec rubocop --only Metrics/MethodLength --format simple 2>&1 | grep "offense" | wc -l` -> Expected: 0

Invoke /implement with this brief to create the implementation plan.