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Dynamic System Prompt

GPTClaudeGemini··▲ 564 copies·updated 2026-07-14

dynamic-system-prompt.prompt

---
anti_pattern_id: dynamic-system-prompt
name: "Dynamic system prompt — per-turn injection of volatile state"
type: anti-pattern
severity: HIGH
hit_rate_impact: "-50% to -90%"
detection_method:
  - measure-tokens (cache hit rate < 30% with stable prefix size)
  - grep for `Date.now()` / timestamp templating in system-prompt builder
applies_to: ["all-tools-with-prompt-caching"]
linked_rules:
  - meta-discipline (5.4 cache-friendly prompt order)
  - reference: docs/PROMPT-CACHING-GUIDE.md
---

# Anti-Pattern 01 — Dynamic System Prompt

## 1. What it is

The orchestrator builds the system prompt fresh on every turn, with volatile content (current timestamp, session ID, last-edit time, transient state) interleaved with the stable rule body.

when to use it

Community prompt sourced from the open-source GitHub repo lee77840/omniconductor (NOASSERTION). A "Dynamic 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.