修改记忆元数据。resolved=1 标记已解决（桶权重骤降沉底），resolved=0 重新激活，delete=True 删除桶。其余字段只传需改的，-1 或空串表示不改。
AI agents call trace to permanently remove resources in Ombre Brain — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The tool can permanently delete memory buckets (delete=True) which is irreversible destruction of stored data. It also modifies metadata including resolved states that alter memory weights. The most severe action here is deletion of memory buckets, classifying this as Destructive. High severity because misuse could wipe emotional/long-term memory records that cannot be recovered.
From the tool's definition delete=True 删除桶 (delete=True deletes the bucket); resolved=1 标记已解决（桶权重骤降沉底）indicates irreversible weighting changes; modifies memory metadata
Documented attack patterns abuse exactly the kind of access trace gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ombre Brain, and nothing reaches the server without passing your rules. This is the rule we recommend for trace:
{
"version": "1",
"default": "deny",
"hide": [
"trace"
]
}trace disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
Free to start. No card required.
修改记忆元数据。resolved=1 标记已解决（桶权重骤降沉底），resolved=0 重新激活，delete=True 删除桶。其余字段只传需改的，-1 或空串表示不改。. It is categorised as a Destructive tool in the Ombre Brain MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Ombre Brain MCP server in PolicyLayer and add a rule for trace: 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 Ombre Brain. Nothing to install.
trace 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 trace 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 trace. 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.
trace is provided by the Ombre Brain MCP server (p0lar1zzz/ombre-brain). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 6 Ombre Brain tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
6 Ombre Brain tools catalogued and risk-classified — across an index of 42,500+ MCP servers.