Blast Radius Visualization
Blast radius visualization is an AI agent UX pattern that previews how many files, records, users, or systems an action will touch before approval. Concrete counts (“412 files across 37 folders”) beat vague progress bars that reveal scope too late.
When to use
Essential for agentic tools, bulk automation platforms, and admin interfaces where fan-out actions need clear scope disclosure before execution to prevent accidental large-scale changes.
When not to use
- Single-target actions where the radius is obviously one object.
- When accurate counts cannot be computed without already executing the mutation.
- Tiny hobby tools with no bulk operations.
Anti-patterns
- Starting a bulk run with only a spinner and no pre-count.
- Underestimating counts that balloon mid-run with no re-confirmation.
- Showing technical IDs without human-readable scope maps.
- Allowing “select all matching” with no ceiling or sample preview.
How products use it
| Product | Implementation |
|---|---|
| Cursor / coding agents | Multi-file diff summaries before applying large changes. |
| CRM / support agents | Recipient or record counts before bulk message or update. |
| Cloud consoles | Resource-count previews before fleet-wide operations. |
| Design system migrate tools | Component instance counts before mass redesign apply. |
Use this pattern in your project
Copy this prompt to generate a production-ready implementation in Cursor, Claude Code, Lovable, or any AI coding agent.
Generate a production-ready implementation of the "Blast Radius Visualization" AI interface design pattern.
Pattern Definition:Review before run
Check what will change
Confirm the numbers match what you asked for.
Will rename 412 files across 37 folders.
Adjust scope
Include /legacy subtree
Adds nested vendor and archive paths to the rename match.
Frequently asked questions
What is blast radius visualization in agent UX?
Blast radius visualization shows how wide an agent action will hit (counts and maps of affected files, records, or users) before the user approves execution.
What should a blast radius preview include?
Totals, major groupings (folders, teams, regions) a sample of items, and whether the action is reversible. Link to checkpoints when available.
How does blast radius relate to reversibility marking?
Blast radius answers “how much.” Reversibility answers “how undoable.” High radius plus irreversible should always raise approval friction.