AI agents use convert_jsonl_to_toon to create or update resources in Memory Palace — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Memory Palace environment.
The name indicates the tool converts data from one format to another, implying creation or modification of output data. No evidence of deletion (Destructive), code execution (Execute), financial impact (Financial), or simple retrieval (Read). Format conversion is a reversible write operation.
From the tool's definition Tool name 'convert_jsonl_to_toon' suggests a data conversion operation (JSONL format to TOON format), which is a data transformation/creation task. Description is empty, limiting certainty.
Documented attack patterns abuse exactly the kind of access convert_jsonl_to_toon gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Memory Palace, and nothing reaches the server without passing your rules. This is the rule we recommend for convert_jsonl_to_toon:
{
"version": "1",
"default": "deny",
"tools": {
"convert_jsonl_to_toon": {
"limits": [
{
"counter": "convert_jsonl_to_toon_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}convert_jsonl_to_toon stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
convert_jsonl_to_toon. It is categorised as a Write tool in the Memory Palace MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Memory Palace MCP server in PolicyLayer and add a rule for convert_jsonl_to_toon: 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 Memory Palace. Nothing to install.
convert_jsonl_to_toon is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the convert_jsonl_to_toon 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 convert_jsonl_to_toon. 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.
convert_jsonl_to_toon is provided by the Memory Palace MCP server (jeffpierce/memory-palace). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Memory Palace, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
3 Memory Palace tools catalogued and risk-classified — across an index of 43,000+ MCP servers.