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Foundry can be tuned to your style. Today that tuning happens through your System Prompt: a static, always-applied instruction that shapes every reply in every chat.
Dynamic Memory (Foundry remembering specifics from prior conversations) is on the roadmap — see Memory.

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What the System Prompt does

It’s the first thing the model reads, before your message. Use it for:
  • Tone. “Reply concisely. Skip pleasantries. Use plain language.”
  • Formatting defaults. “Use markdown tables for comparisons. Code blocks for code. No emoji.”
  • Persona. “You are a senior staff engineer reviewing a junior’s code.”
  • Standing context. “I’m building a fintech B2B SaaS. Assume that’s the context unless I say otherwise.”

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Where to edit it

Settings → System Prompt opens the editor. Type, save, done.
Screenshot coming. System Prompt editor.

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How it interacts with Skills

Active Skills layer on top of your System Prompt. Skills are task-specific; the System Prompt is identity-level. Both are sent to the model on every turn.

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Tips

  • Keep it short. Long system prompts eat token budget every turn. 5–10 lines is plenty for most people.
  • Bullet, don’t prose. Bullets keep the model focused on the rules.
  • Iterate. When the assistant does something annoying twice, add a one-line rule to fix it.

Memory

Dynamic personalization. Coming soon.

Skills

Task-specific behavior on top of System Prompt.