The rise of AI coding assistants—Cursor, Claude, GitHub Copilot—has shifted the main challenge from writing code to communicating intent. When engineers give an LLM a vague feature description or unstructured prompt, the model often drifts. It invents edge cases, guesses API endpoints, or generates lots of valid code that solves the wrong problem. To keep […]

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In OpenSpec, the standard spec format is a structured Markdown document that defines exactly what a system should do through requirements and how that behavior is verified through scenarios. 1. Core Specification Structure (spec.md) The “Source of Truth” file (located in openspec/specs/<domain>/spec.md) follows a specific hierarchy: 2. The Scenario Format (GIVEN/WHEN/THEN) Scenarios are the most critical […]

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