5 workflows

runcastle

A single Claude Code agent that finds the least-tested modules in your repo, writes focused unit tests for them one module at a time, and verifies the suite stays green after every batch — stopping once it hits your coverage target.

runcastle

An Opus planner triages your open `bug`-labelled GitHub issues into independent fixes, then a swarm of Sonnet fixers fans out — one per issue, each on its own branch — to reproduce, root-cause, patch, and test the bug in parallel.

runcastle

A single Claude Code agent reads your offer and ideal-customer notes and writes a complete 5-touch cold email sequence — subject-line options, tight bodies, send timing, one clear CTA per email, and personalization tokens ready to merge at send time.

runcastle

A mixed-provider copy pipeline: a Claude Code writer turns your product brief into full AIDA-structured landing page copy, then a Codex editor cuts fluff, makes claims concrete, and tightens headlines on the same warm branch, looping until it ships.

runcastle

A Claude Code writer drafts an X/Twitter launch thread from your product brief, then a Codex critic tears it apart post-by-post — hook, clarity, specificity, CTA — rewriting the weak posts on the same warm branch until the thread is ready to ship.