Compose typed sync or async business validation rules for TypeScript.
npx skills add https://github.com/senrecep/tsentials --skill tsentials-rules
Please help me install this Agent Skill. Skill: tsentials-rules Source: https://github.com/senrecep/tsentials/tree/main/.well-known/agent-skills/tsentials-rules Command: npx skills add https://github.com/senrecep/tsentials --skill tsentials-rules
It helps you express business validation as small, typed predicates and combine them into reliable rule sets, avoiding tangled conditionals and inconsistent error handling.
Rule<TContext>/AsyncRule<TContext> for void outcomes, and TypedRule/TypedAsyncRule when you need a success value (Result<TResult>).and*) or stopping at the first failure (linear*), and support conditional branching via if*.Use the tsentials-rules skill to evaluate an and-composed registration rule for a user context and return all validation errors at once.
High-intent search queries and answers about installing and using this skill.
To compose TypeScript validation rules mixing sync and async checks, use a rule engine that separates Rule and AsyncRule types, then combine them using and, or, and linear combinators in an async pipeline to aggregate results.
Handling business logic validation without tangled conditionals involves expressing rules as small typed predicates and combining them into reliable rule sets, using deterministic evaluation modes like collecting all failures or stopping at the first failure.
Yes, you can get a success value instead of a void result by using TypedRule and TypedAsyncRule variants, which return a Result<TResult> containing the success value when evaluating your TypeScript business validation rules.
TypeScript rule evaluation supports conditional workflow guards through if patterns, allowing you to branch rule execution based on context. You can use if combinators alongside and or linear evaluation modes for sync and async pipelines.
To return all validation errors at once instead of stopping at the first failure, use the and composed evaluation mode. This collects all failures across your TypeScript business validation rules and aggregates them using VoidResult semantics.
Railway oriented programming in TypeScript validation pipelines is a pattern where rules act as typed predicates that either pass successfully or return specific errors. Combinators route execution through the pipeline, ensuring deterministic failure aggregation.
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