Self-Planning API Code Generation System Architecture

Input: Natural Language API Requirements

Phase 1: Planning Module

Large Language Model(DeepSeek Coder 6.7B)

Planning Prompt Template(Few-shot examples + instructions)

Structured Plan (5 steps: Auth → Params → Request → Error → Response)

Phase 2: Implementation Module

Large Language Model(Same LLM instance)

Implementation Prompt(Plan + requirements → code)

Generated Python Code(Complete function with auth, error handling, parsing)

Evaluation Framework• Completeness Score• Security Score• Syntax Validity• Code Quality Metrics• Functional correctness

Output: Evaluation Metrics + Quality Report

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