use_prismatic_barrier
Negate the current outer layer with its exact counterspell, destroy a sphere with a Rod of Cancellation, or resolve one creature crossing every remaining layer with an explicit save-category ruling and a fresh adjusted magic-resistance roll for every layer.
This record as markdown: /tools/torch-to-crown/use-prismatic-barrier.md
What use_prismatic_barrier does on Torch-to-Crown
AI agents call use_prismatic_barrier to permanently remove resources in Torch-to-Crown, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why use_prismatic_barrier is rated Critical
An AI agent that decides to call use_prismatic_barrier doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from Torch-to-Crown is gone. There is no undo for destructive operations.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs use_prismatic_barrier safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Torch-to-Crown, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For use_prismatic_barrier, this is the rule to start with:
use_prismatic_barrier is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Torch-to-Crown, apply this rule, and every use_prismatic_barrier call is checked against it from then on.
Questions about use_prismatic_barrier
Negate the current outer layer with its exact counterspell, destroy a sphere with a Rod of Cancellation, or resolve one creature crossing every remaining layer with an explicit save-category ruling and a fresh adjusted magic-resistance roll for every layer. It is categorised as a Destructive tool in the Torch-to-Crown MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Torch-to-Crown MCP server in PolicyLayer and add a rule for use_prismatic_barrier: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Torch-to-Crown. Nothing to install.
use_prismatic_barrier is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the use_prismatic_barrier rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for use_prismatic_barrier. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
use_prismatic_barrier is provided by the Torch-to-Crown MCP server (Diogenes187/Torch-to-Crown). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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