canton-dev

Design and generate themed PlantUML activity diagrams for Daml workflows and choice flows. Use this skill whenever the user asks to diagram a Daml choice, visualize a multi-party workflow, draw swim lanes for parties or templates, render an exercise flow, or sketch a contract interaction — even if "PlantUML" is not named explicitly. Currently covers activity/workflow diagrams only; not yet transaction trees or contract lifecycle graphs.

Decision framework for choosing between on-ledger Daml/Canton logic and off-ledger backend code. Use whenever the user is designing Daml templates, choices, or interfaces; deciding what should live in a smart contract vs an operator backend; weighing Canton throughput or contention concerns; integrating oracles, KYC, or any external data with Daml; refactoring an on-ledger component because it's too heavy; or asking variations of "should this be a Daml choice?", "where does this logic go?", "is this on-ledger?", or "should the backend handle this?". Default the user toward off-ledger and require explicit justification for putting anything on-ledger.

Generate TypeScript API from Daml smart contracts. Use when user mentions "generate canton SDK".

Generate TypeScript tests from Daml scripts. Use when user mentions "generate tests", "create tests for canton", or "generate canton tests".

Generate a React webapp for Canton ledger. Use when user mentions "generate webapp", "create webapp", or "build frontend".