Expired50% confidenceFactExact time
Codex adopts the Specification-Driven Development (SDD) philosophy, requiring developers to first write specification files such as agents.md and Rules, and then have the AI generate code based on those specifications.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
OpenAI Codex Deep Dive: Core Capabilities and Engineering Best Practices Guide
bilibili阿里架构师诸葛6/9/2026
Related Claims
UnverifiedThe core design philosophy of Codex is a shift from prompt-driven to Specification-Driven Development (SDD).83% similarVerifiedBoth Claude Code and Codex offer a Plan Mode where AI first generates a detailed development plan before writing code73% similarUnverifiedAmazon CodeWhisperer/Q Developer adopts a specification-driven development model that requires defining specifications before AI generates code.71% similarUnverifiedAI programming agents such as Codex and Claude Code are built on the ReAct (Reasoning + Acting) architecture at their core, enabling them to generate code, call the file system, run interpreters, capture errors, and autonomously make corrections.71% similar
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