files_entity_coalesce_apply
AI agents use files_entity_coalesce_apply to create or update resources in M3 Memory — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your M3 Memory environment.
The tool name strongly suggests a Write operation (modification of data through coalescing/merging entities), though without documentation the exact scope and reversibility are unclear. Confidence is moderate due to empty description. Severity is medium because file entity operations could affect stored data integrity, but the operation appears to be reorganizational rather than destructive or irreversible.
From the tool's definition Tool name 'files_entity_coalesce_apply' suggests applying a coalescing operation to entities in a file system, implying modification or reorganization of data. The verb 'apply' indicates an action that modifies state.
Documented attack patterns abuse exactly the kind of access files_entity_coalesce_apply gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and M3 Memory, and nothing reaches the server without passing your rules. This is the rule we recommend for files_entity_coalesce_apply:
{
"version": "1",
"default": "deny",
"tools": {
"files_entity_coalesce_apply": {
"limits": [
{
"counter": "files_entity_coalesce_apply_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}files_entity_coalesce_apply 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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files_entity_coalesce_apply. It is categorised as a Write tool in the M3 Memory MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the M3 Memory MCP server in PolicyLayer and add a rule for files_entity_coalesce_apply: 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 M3 Memory. Nothing to install.
files_entity_coalesce_apply 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 files_entity_coalesce_apply 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 files_entity_coalesce_apply. 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.
files_entity_coalesce_apply is provided by the M3 Memory MCP server (skynetcmd/m3-memory). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from M3 Memory, 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.
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