3 workflows

runcastle

A single Claude Code agent brings your dependencies up to date in safe batches — patches, then minors, then one major at a time — fixing any breakage it introduces, gated by a hard build + test check every round until everything is current and green.

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.

runcastle

A single Claude Code agent reads your product and segment notes, then produces a defensible TAM/SAM/SOM estimate using both top-down and bottom-up methods — every assumption stated, a sensitivity table, and honest caveats — written to research/market-sizing.md.