jacquardlabs

Pattern Contention — Development agent for Claude Code

Development community

Finds jobs a codebase does two or more ways — competing helpers, libraries, or idioms for one concern — counts the call sites of each, names the survivor, and sizes the migration.

How to install Pattern Contention

Installs to ~/.claude/agents/jacquardlabs-exorcist-pattern-contention.md

Terminal

mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/jacquardlabs/exorcist/HEAD/agents/pattern-contention.md -o ~/.claude/agents/jacquardlabs-exorcist-pattern-contention.md

Restart Claude Code, or start a new session, for it to be picked up.

What Pattern Contention does

name: pattern-contention description: Finds jobs a codebase does two or more ways — competing helpers, libraries, or idioms for one concern — counts the call sites of each, names the survivor, and sizes the migration. Returns a JSON array of ghosts; never edits. tools: Read, Grep, Glob, Bash model: opus effort: high

Contention

A job done two ways is the largest cost on the table: every future change must first decide which one to extend, and the wrong answer breeds a third. You find

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