Write Malli-based Guardrails function specifications for runtime validation in Clojure.
npx skills add https://github.com/saskenuba/dotfiles --skill guardrails
Please help me install this Agent Skill. Skill: guardrails Source: https://github.com/saskenuba/dotfiles/tree/main/ai/.claude/skills/guardrails Command: npx skills add https://github.com/saskenuba/dotfiles --skill guardrails
This skill teaches Clojure developers how to write Malli-based Guardrails function specifications to perform runtime validation of arguments and return values.
Define a simple Guardrails example: create a >defn add function that accepts two integers and returns an integer, and call it with (add 2 3) to verify runtime validation.
High-intent search queries and answers about installing and using this skill.
You add runtime validation to Clojure functions by defining them with >defn and applying Malli schemas to argument and return values, ensuring inputs and outputs are validated during execution.
Guardrails supports primitive, collection, map, and composite Malli schemas including Maybe, Enum, And, Or, Orn, and Multi, enabling validation of complex real-world data structures in function specifications.
You avoid schema duplication by creating reusable domain types in a Malli registry, which centralizes definitions and improves maintainability across your Guardrails function specifications.
Yes, Guardrails supports optional keys in Malli map schemas, with best practices for schema depth, optional key handling, and error management covered for real-world function validation.
Composite schemas like And, Or, and Multi apply when function arguments or return values require multiple validation rules simultaneously, such as combining type checks with custom predicates or branching validation logic.
You need a working understanding of Clojure function definitions and the Malli schema library, as Guardrails builds on >defn syntax and Malli's schema vocabulary to enforce runtime type safety.
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