fs_remove_allowed_directory
Remove a directory from the filesystem allowlist.
This record as markdown: /tools/yuga-hashimoto-localant/fs-remove-allowed-directory.md
What fs_remove_allowed_directory does on LocalAnt
AI agents use fs_remove_allowed_directory to create or update resources in LocalAnt, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your LocalAnt environment.
Why fs_remove_allowed_directory is rated Medium
This tool modifies the access control configuration by removing a directory from the allowlist. It is a write/configuration change — it does not delete files or directories themselves, but alters permissions metadata. However, removing a directory from the allowlist could indirectly grant or restrict AI agent access to parts of the filesystem, making misuse moderately risky.
From the tool's definition Remove a directory from the filesystem allowlist
Attacks that exploit this kind of access
The rule that runs fs_remove_allowed_directory safely
PolicyLayer is an MCP gateway: it sits between your AI agents and LocalAnt, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For fs_remove_allowed_directory, this is the rule to start with:
fs_remove_allowed_directory 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 LocalAnt, apply this rule, and every fs_remove_allowed_directory call is checked against it from then on.
Questions about fs_remove_allowed_directory
Remove a directory from the filesystem allowlist. It is categorised as a Write tool in the LocalAnt MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the LocalAnt MCP server in PolicyLayer and add a rule for fs_remove_allowed_directory: 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 LocalAnt. Nothing to install.
fs_remove_allowed_directory 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 fs_remove_allowed_directory 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 fs_remove_allowed_directory. 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.
fs_remove_allowed_directory is provided by the LocalAnt MCP server (yuga-hashimoto/localant). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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