Detect duplicated logic across three or more code locations and propose extraction plans.
npx skills add https://github.com/BrunoAMSilva/my-config --skill dry-principle
Please help me install this Agent Skill. Skill: dry-principle Source: https://github.com/BrunoAMSilva/my-config/tree/main/coding/skills/dry-principle Command: npx skills add https://github.com/BrunoAMSilva/my-config --skill dry-principle
Reduce maintenance overhead and bugs caused by duplicated domain knowledge and scattered configuration by guiding when and how to extract shared code and data definitions into single sources of truth.
Identify code or configuration repeated in three or more places and propose a safe extraction plan that centralizes the logic as a shared utility, type, or config module.
High-intent search queries and answers about installing and using this skill.
You can centralize configuration by moving endpoints, constants, and auth settings into a single config module. This centralization eliminates scattered configuration values and reduces maintenance overhead across frontend and backend environments.
You should extract duplicated code when the same validation, fetch patterns, or configuration appear in three or more places. Following the Rule of Three trigger prevents premature abstraction by ensuring logic is only centralized after duplication is proven.
You should avoid merging code that looks similar but represents different domain concepts. The decision tree provides guidance on when duplication is acceptable, such as for tests or single-use cases, preventing incorrect abstraction of divergent semantics.
Yes, you can use this refactoring approach for both frontend and backend situations where the same validation, types, or state patterns appear repeatedly. It provides concrete extraction recommendations to centralize logic regardless of the specific environment.
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