Get a recursive tree view of files and directories as a JSON structure.
AI agents call directory_tree to retrieve information from Helm Chart CLI without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation that queries the filesystem structure and returns data. It has no side effects, does not modify, delete, or execute anything. The blast radius of misuse is minimal - at worst, an agent could enumerate directory structures it shouldn't see, but no data is altered or destroyed. This is clearly a Read category tool.
From the tool's definition Tool description states it 'Get a recursive tree view of files and directories as a JSON structure' - a query operation that retrieves and presents existing directory/file information without modification.
Attacks that exploit this kind of access
Get a recursive tree view of files and directories as a JSON structure. It is categorised as a Read tool in the Helm Chart CLI MCP Server, which means it retrieves data without modifying state.
Register the Helm Chart CLI MCP server in PolicyLayer and add a rule for directory_tree: 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 Helm Chart CLI. Nothing to install.
directory_tree 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 directory_tree 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 directory_tree. 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.
directory_tree is provided by the Helm Chart CLI MCP server (jeff-nasseri/servers). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
directory_tree is one line of Helm Chart CLI's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →