在ListMemory的末尾添加新元素。适用于所有角色模式的ListMemory，但仅建议在array模式下使用。
AI agents use appendListElement to create or update resources in ThinkMem — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your ThinkMem environment.
This tool appends a new element to an existing list in memory. It is a write operation that creates new data in a reversible manner (the element can later be deleted). No code execution, financial transactions, or irreversible destruction is involved.
From the tool's definition 添加新元素 (adds new element) to the end of a ListMemory
Documented attack patterns abuse exactly the kind of access appendListElement gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and ThinkMem, and nothing reaches the server without passing your rules. This is the rule we recommend for appendListElement:
{
"version": "1",
"default": "deny",
"tools": {
"appendListElement": {
"limits": [
{
"counter": "appendlistelement_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}appendListElement 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.
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在ListMemory的末尾添加新元素。适用于所有角色模式的ListMemory，但仅建议在array模式下使用。. It is categorised as a Write tool in the ThinkMem MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the ThinkMem MCP server in PolicyLayer and add a rule for appendListElement: 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 ThinkMem. Nothing to install.
appendListElement 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 appendListElement 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 appendListElement. 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.
appendListElement is provided by the ThinkMem MCP server (rickonono3/thinkmem). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from ThinkMem, 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.
28 ThinkMem tools catalogued and risk-classified — across an index of 43,000+ MCP servers.