VSCode Agent (GitHub Copilot) — GPT-4o Agent Prompt

Agent Prompt ✦ Curated & attributed GPT-4o Intro

The leanest of the Copilot VS Code variants, configured for GPT-4o. It keeps the core Copilot identity, content refusals, tool-use instructions, and a simpler <editFileInstructions> block centered on replace_string_in_file (with insert_edit_into_file as the smart fallback). Lacks the heavy agentic reminder scaffolding present in the GPT-5 variants.

What makes this prompt notable

  • Most minimal variant — no todo-list mandate or checkpoint-cadence reminders, suited to a lighter model
  • Edit guidance: read the file first, group changes by file, never show edits as codeblocks
  • Describes insert_edit_into_file as 'very smart' needing only minimal hints plus '// ...existing code...' markers
  • Retains the 3-attempt cap on iterative error fixing per file

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