activitywatch_delete_category

Delete an ActivityWatch category by its name path.

SERVERActivityWatch MCP Server SOURCE8bitgentleman/activitywatch-mcp-server

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/8bitgentleman-activitywatch-mcp-server/activitywatch-delete-category.md

WHAT IT DOES

What activitywatch_delete_category does on ActivityWatch MCP Server

AI agents call activitywatch_delete_category to permanently remove resources in ActivityWatch MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why activitywatch_delete_category is rated Critical

This tool permanently removes a category from ActivityWatch, which cannot be undone. Deletion is irreversible and represents data loss. While the scope is limited to category metadata (not entire event logs), it still qualifies as Destructive rather than Write, as the operation cannot be reversed.

From the tool's definition Tool name contains 'delete' and description states 'Delete an ActivityWatch category by its name path.' The verb 'delete' indicates irreversible removal of data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs activitywatch_delete_category safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ActivityWatch MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For activitywatch_delete_category, this is the rule to start with:

activitywatch_delete_category Hidden

activitywatch_delete_category is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "activitywatch_delete_category"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ActivityWatch MCP Server, apply this rule, and every activitywatch_delete_category call is checked against it from then on.

FAQ

Questions about activitywatch_delete_category

What does the activitywatch_delete_category tool do? +

Delete an ActivityWatch category by its name path. It is categorised as a Destructive tool in the ActivityWatch MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on activitywatch_delete_category? +

Register the ActivityWatch MCP Server MCP server in PolicyLayer and add a rule for activitywatch_delete_category: 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 ActivityWatch MCP Server. Nothing to install.

What risk level is activitywatch_delete_category? +

activitywatch_delete_category is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit activitywatch_delete_category? +

Yes. Add a rate_limit block to the activitywatch_delete_category 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.

How do I block activitywatch_delete_category completely? +

Set action: deny in the PolicyLayer policy for activitywatch_delete_category. 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.

What MCP server provides activitywatch_delete_category? +

activitywatch_delete_category is provided by the ActivityWatch MCP Server MCP server (8bitgentleman/activitywatch-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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