Generate a detailed design document via tx doc add design. Covers architecture, interfaces, data model, invariants, failure modes, verification, and testing strategy. References plan via file path instead of embedding. Plan lives in ~/.claude/plans/<name>.md. Reads companion PRD automatically to map EARS requirements to invariants. Output lands in specs/design/<name>.md.
How to install design-doc?
jamesaphoenix/tx/design-doc
$npx -y skills add jamesaphoenix/tx --skill design-docInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/jamesaphoenix/tx" --skill "jamesaphoenix/tx/design-doc"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/jamesaphoenix/tx" that are relevant to the current task. Run `npx skills add "https://github.com/jamesaphoenix/tx"` and select the relevant skills, then follow their instructions.
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