3 workflows
Market Sizing Estimator
v1.0.1runcastle
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.
Blog Post Pipeline
v1.0.1runcastle
Turn a single topic into a publish-ready blog post through three sequential Claude Code passes on one warm branch: an Opus strategist outlines the angle and keywords, a Sonnet writer drafts the full post, and an Opus editor tightens the prose and optimises it for search.
SEO On-Page Audit
v1.0.1runcastle
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.