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System Prompt

GPTClaudeGemini··▲ 1,071 copies·updated 2026-07-14

system-prompt-80.prompt

# System Prompts

> All 4 requests in plan mode use the same system prompt. The prompt is identical to build mode — plan mode behavior is enforced via a `<system-reminder>` block injected into the user message, not by changing the system prompt.

## Main Prompt — gpt-5.3-codex | has tools

**Words:** 1,171 | **Characters:** 7,361

The system prompt is **identical** to build mode — see [build-mode/system-prompt.md](../build-mode/system-prompt.md) for the full text.

## Plan Mode Reminder — injected via user message

**Words:** 228 | **Characters:** 1,484

This block is injected as a second content block within the user message turn:

when to use it

Community prompt sourced from the open-source GitHub repo agenticloops-ai/agentic-apps-internals (no explicit license). A "System Prompt" style prompt — adapt the placeholders and specifics to your task. Imported as-is and not independently retested here, so check the output before relying on it.