A warmed Neovim session compares an in-process
AI agents call get_buffer to retrieve information from Vigentic MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves buffer state from a Neovim session. Despite the description being incomplete, the name 'get_' prefix and the context of buffer management indicate this is a read operation that queries current editor state without side effects. The sibling tools like 'apply_edit_batch', 'create_file', and 'delete_file' are more destructive or modifying; this one is clearly the read counterpart.
From the tool's definition Tool name is 'get_buffer' and description indicates it 'compares an in-process' buffer state, which is a retrieval/query operation with no modification of underlying data.
Attacks that exploit this kind of access
A warmed Neovim session compares an in-process. It is categorised as a Read tool in the Vigentic MCP MCP Server, which means it retrieves data without modifying state.
Register the Vigentic MCP server in PolicyLayer and add a rule for get_buffer: 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 Vigentic MCP. Nothing to install.
get_buffer is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_buffer 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 get_buffer. 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.
get_buffer is provided by the Vigentic MCP server (munozu/vigentic-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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