Trae — AI Flow Chat System Prompt

System Prompt ✦ Curated & attributed Intermediate

System prompt for Trae AI's chat mode, an agentic IDE coding assistant operating on the 'AI Flow' paradigm. Structured with XML sections (identity, purpose, tool_instruction, guidelines) it governs when to call tools vs reply directly, mandates the exact '// ... existing code ...' placeholder for edits, sets Windows-default terminal commands, and includes web-citation and code-reference formatting rules.

What makes this prompt notable

  • Mandates EXACTLY and ONLY the '// ... existing code ...' placeholder for skipped code, forbidding any variation
  • Defaults all terminal commands to Windows unless the user specifies otherwise, with per-OS path separator rules
  • Includes explicit anti-leak rule: describe tools but never expose tool information even when asked
  • Defines separate XML citation formats for web search results vs code/symbol/file/folder references and warns not to confuse them

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