Agent-Skills.md

Agent Skills: Adapter (Wrapper) Pattern

Adapter (Wrapper) Pattern pattern for C development

UncategorizedID: mgreenly/ikigai/patterns/adapter

Repository

mgreenly/ikigai
mgreenlyLicense: MIT-0
1

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pnpm dlx add-skill https://github.com/mgreenly/ikigai/tree/HEAD/.claude/library/patterns/adapter

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.claude/library/patterns/adapter/SKILL.md

Skill Metadata

Name
patterns/adapter
Description
Adapter (Wrapper) Pattern pattern for C development

Adapter (Wrapper) Pattern

Convert interface of one module to interface expected by another. Enables integration of incompatible interfaces without modifying either.

ikigai Application

wrapper.h: Adapts system calls to mockable interface:

  • posix_read_() wraps read()
  • curl_easy_perform_() wraps libcurl
  • yyjson_read_file_() wraps yyjson

Purpose: Real implementations in production, mock implementations in tests via weak symbol linking.

LLM providers: Adapt different API formats (OpenAI, Anthropic) to unified internal message format.

Benefit: External dependencies isolated behind stable internal interface. Swap implementations without changing callers.

Testing: Inject failures, control responses, verify calls.