PromptivityScope Lock: a free sample from The On-Task Kit
One rule set that asks your AI coding agent not to change things you didn't ask for.
Download the free sample (ZIP)
Scope Lock asks your agent to say what it will change before it starts, stay inside that list, and stop and ask when it wants to go further.
Here's the problem it's built for. You ask for one small change and the agent edits five other files, renames things, or "tidies up" code that was working.
What's inside
- The Scope Lock rules, ready to drop in as AGENTS.md, CLAUDE.md or a Cursor rule, or to paste into your tool's instructions box.
- A start-of-task prompt you paste at the start of each task.
- A table of where the file goes in Cursor, Claude Code, Codex, GitHub Copilot, Lovable, Bolt and Replit, and a "scope check" to confirm it loaded.
Free to use in your own and client projects, and free to share with credit to Promptivity. Not for resale.
The full kit, The On-Task Kit, adds Session Handoff, Loop Breaker, Done means done and Ask first, starter files for each tool, and a map of which tool reads which file. Get the full kit
Download the free sample (ZIP)
Questions? support@promptivity.ai
Not affiliated with or endorsed by any of these companies. Cursor is a trademark of Anysphere, Inc. Claude and Claude Code are trademarks of Anthropic, PBC. Codex is a trademark of OpenAI. GitHub and GitHub Copilot are trademarks of GitHub, Inc. Replit is a trademark of Replit, Inc. Lovable is a trademark of Lovable Labs Incorporated. Bolt is a trademark of StackBlitz, Inc.