Share and install AI agent workflows built on Sandcastle

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

Fans out an analyst agent per competitor to fetch and dissect each rival's site — pricing, positioning, messaging, gaps — then a strategist synthesizes the teardowns into a single positioning brief with sharp, defensible angles for your product.

runcastle

Fans out a searcher per sub-question to fetch and note public web sources, then an Opus synthesizer writes a fully cited report, then a Codex fact-checker adversarially verifies every claim against the notes and loops until the report holds up.

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

A single Claude Code agent reads the diff and commit history of your branch against its base, then writes a complete, reviewer-ready PR_DESCRIPTION.md — summary, what changed, why, testing, risk, and a reviewer checklist — grounded entirely in the real diff.

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

Fans out an analyst agent per competitor to fetch and dissect each rival's site — pricing, positioning, messaging, gaps — then a strategist synthesizes the teardowns into a single positioning brief with sharp, defensible angles for your product.

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 single Claude Code agent reads your repository — a shell-expanded file map seeds it, and it can install and run the project — then writes and incrementally commits a real `docs/` set: a getting-started guide, an architecture overview, and per-module reference pages.

runcastle

A single Claude Code agent reads a metrics.csv, computes week-over-week deltas, and writes an executive narrative — what moved, why it likely moved, what to watch, and one recommended action — alongside a compact metrics table, to reports/weekly.md.

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

Fetches a single target page and audits its on-page SEO — title, meta, headings, canonical, Open Graph, structured data, alt text, internal links, word count — then writes a prioritized, fix-by-fix action list you can hand to a developer.

runcastle

A single Claude Code agent reads the commits since your last tag, groups them into Added/Changed/Fixed/Security by user-facing intent, and writes a clean CHANGELOG.md entry plus a friendly RELEASE_NOTES.md — turning raw git history into release-ready notes in one pass.

runcastle

A Claude Code agent performs a refactor, a hard `npm test` gate proves nothing broke, then a Codex reviewer adversarially audits the change on the same warm branch — hunting regressions, weak tests, and shortcuts — fixing and looping until it approves.

runcastle

A single Claude Code agent reads the diff and commit history of your branch against its base, then writes a complete, reviewer-ready PR_DESCRIPTION.md — summary, what changed, why, testing, risk, and a reviewer checklist — grounded entirely in the real diff.