Store structured context in the operator memory bank for later retrieval. Use this for durable notes, human preferences, incident breadcrumbs, or other context worth recalling later. Returns a JSON confirmation with the stored key, persistence state, and any ledger event identifier.
AI agents use sint__store_memory to create or update resources in SINT Protocol — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your SINT Protocol environment.
This tool writes/creates data (structured context) to a persistent memory bank. The data can be retrieved later, implying the write is reversible or at least not inherently destructive. However, misuse could involve storing false or manipulated context (e.g., fake human preferences or fabricated incident breadcrumbs) that influences future AI agent decisions, giving it a medium severity blast radius.
From the tool's definition Store structured context in the operator memory bank for later retrieval... durable notes, human preferences, incident breadcrumbs, or other context worth recalling later
Documented attack patterns abuse exactly the kind of access sint__store_memory gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and SINT Protocol, and nothing reaches the server without passing your rules. This is the rule we recommend for sint__store_memory:
{
"version": "1",
"default": "deny",
"tools": {
"sint__store_memory": {
"limits": [
{
"counter": "sint__store_memory_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}sint__store_memory 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.
Store structured context in the operator memory bank for later retrieval. Use this for durable notes, human preferences, incident breadcrumbs, or other context worth recalling later. Returns a JSON confirmation with the stored key, persistence state, and any ledger event identifier. It is categorised as a Write tool in the SINT Protocol MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the SINT Protocol MCP server in PolicyLayer and add a rule for sint__store_memory: 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 SINT Protocol. Nothing to install.
sint__store_memory 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 sint__store_memory 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 sint__store_memory. 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.
sint__store_memory is provided by the SINT Protocol MCP server (sint-ai/sint-protocol). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from SINT Protocol, 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.
21 SINT Protocol tools catalogued and risk-classified — across an index of 43,000+ MCP servers.