merge_datasets
Join datasets on common keys.
This record as markdown: /tools/aegntic-aegntic-mcp/merge-datasets.md
What merge_datasets does on Obsidian Elite RAG MCP Server
AI agents use merge_datasets to create or update resources in Obsidian Elite RAG MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Obsidian Elite RAG MCP Server environment.
Why merge_datasets is rated Medium
The merge operation creates or transforms data by combining datasets, but does not delete or irreversibly destroy information. It is reversible (the original datasets remain, and the merge can be undone by reprocessing). This qualifies as Write rather than Destructive.
From the tool's definition 'Join datasets on common keys' indicates combining/modifying data structures. The tool creates new merged data records, which is a write operation that modifies the dataset state reversibly.
Attacks that exploit this kind of access
The rule that runs merge_datasets safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Obsidian Elite RAG MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For merge_datasets, this is the rule to start with:
merge_datasets 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Obsidian Elite RAG MCP Server, apply this rule, and every merge_datasets call is checked against it from then on.
Questions about merge_datasets
Join datasets on common keys. It is categorised as a Write tool in the Obsidian Elite RAG MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Obsidian Elite RAG MCP Server MCP server in PolicyLayer and add a rule for merge_datasets: 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 Obsidian Elite RAG MCP Server. Nothing to install.
merge_datasets 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 merge_datasets 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 merge_datasets. 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.
merge_datasets is provided by the Obsidian Elite RAG MCP Server MCP server (aegntic/aegntic-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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