This record as markdown: /tools/nasbridge/rsync-task-update.md
What rsync_task_update does on Nasbridge
AI agents use rsync_task_update to create or update resources in Nasbridge, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Nasbridge environment.
Why rsync_task_update is rated Medium
This tool modifies rsync task configuration but does not delete it (which would be Destructive) or execute arbitrary commands (which would be Execute). Rsync tasks control file synchronization/replication on storage systems, so misconfigured updates could cause significant unintended data transfers or overwrites, justifying high severity.
From the tool's definition Tool name 'rsync_task_update' explicitly indicates modification of an existing rsync task. Description states 'Update an existing rsync task', which is a reversible data/configuration change operation.
Attacks that exploit this kind of access
The rule that runs rsync_task_update safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nasbridge, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For rsync_task_update, this is the rule to start with:
rsync_task_update 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 Nasbridge, apply this rule, and every rsync_task_update call is checked against it from then on.
Questions about rsync_task_update
Update an existing rsync task. It is categorised as a Write tool in the Nasbridge MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Nasbridge MCP server in PolicyLayer and add a rule for rsync_task_update: 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 Nasbridge. Nothing to install.
rsync_task_update 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 rsync_task_update 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 rsync_task_update. 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.
rsync_task_update is provided by the Nasbridge MCP server (maverick0628/nasbridge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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