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2026-04-22 13:56
When System Prompts Become Prompt Debt -What GitHub Copilot’s hidden instructions reveal about AI agent design
I Read the System Prompt
Most discussions about coding agents focus on model quality.
I decided to inspect something else:
the system prompt.
What I found was not a short hidden prompt, but a large prompt program implemented in TypeScript (AgentPrompt.tsx), with conditional rendering, tool routing, memory instructions, safety rules, behavioral policies, and identity constraints.
It ...