Skill

plan-reduce-max-lines-per-function

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.

Install

npx claudepluginhub codyswanngt/lisa --plugin lisa-rails

Tool Access

This skill is limited to using the following tools:

ReadBashGlobGrep

Preview

Target threshold: $ARGUMENTS lines per method

SKILL.md

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Last CommitMar 5, 2026

Actions

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plan-reduce-max-lines-per-function

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

Read current config from .rubocop.yml or .rubocop.local.yml (Metrics/MethodLength)

Run RuboCop with the target threshold to find violations:

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

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 /plan-execute with this brief to create the implementation plan.

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

Read current config from .rubocop.yml or .rubocop.local.yml (Metrics/MethodLength)

Run RuboCop with the target threshold to find violations:

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

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 /plan-execute with this brief to create the implementation plan.