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Four boundaries before tool calls: Read / Write / Off-limits / Stop

Agent mistakes often start before the first tool call — the brief names the goal, not what the bot may touch.

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What hurt

ShareGrokBots (@ShareGrokBots) argues most agent mistakes start before the first tool call. Scope the inputs, not just the goal. Before handoff, name four boundaries: Read (exact folders/pages/records it may inspect); Write (files or draft locations it may change); Off-limits (private folders, production, credentials, unrelated tabs); Stop (the condition that means pause and report instead of exploring). Their example turns “clean up the project” into “inspect /docs/inbox, draft changes in /docs/review, do not edit /app or open account settings, stop when three candidates are listed.” Tip only. Not affiliated with xAI.

What to install or create

Brief = goal + Read + Write + Off-limits + Stop. Map permitted I/O before any tool.

Bots

  • Scoped-task bot

    Runs one brief with explicit Read / Write / Off-limits / Stop. Pauses at Stop.

Plugins

  • None on day one. Follow the first-run steps.

Files

  • Short brief template: Goal; Read:; Write:; Off-limits:; Stop:.

Routines

  • None on the first run. Watch one manual pass first.

The prompt

This is a tip, not a pasteable system prompt. The author did not publish one. Follow the first-run steps.

First run

  1. 1Read https://x.com/ShareGrokBots/status/2103260312019362223 for the four-boundary pattern and example brief.
  2. 2Before the next handoff, write four lines: Read / Write / Off-limits / Stop — not only the goal.
  3. 3Borrow their shape: inspect /docs/inbox, draft in /docs/review, do not edit /app or open account settings, stop when three candidates are listed.
  4. 4Paste the four boundaries into the bot chat (or standing job) so tools cannot wander.
  5. 5If it hits Off-limits or Stop, it reports and waits — you decide whether to widen scope.

Approval fence

Anything outside Write, or past Stop, pauses for your yes — especially production and credentials.

What to tweak

Steal the four-boundary brief. Good delegation is a map of permitted inputs and outputs.

Source

ShareGrokBots.com @ShareGrokBots · Original post

Not affiliated with xAI. We did not write this prompt. Third-party template terms still apply.

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