cancel

Cancel a pending submission on Chrome Web Store. Can be used to cancel an item currently in review.

SERVERCws SOURCE@1llum1n4t1/cws-mcp

Medium RISK CLASS

Category Write

Parameters 20 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/1llum1n4t1-cws-mcp/cancel.md

WHAT IT DOES

What cancel does on Cws

AI agents use cancel to create or update resources in Cws, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Cws environment.

Parameter	Type	Required	Description
`itemId`	string	—	Extension item ID (defaults to CWS_ITEM_ID env var)
`publisherId`	string	—	Publisher ID (defaults to CWS_PUBLISHER_ID env var or 'me')

Parameters from the server's own tool schema.

RISK

Why cancel is rated Medium

Cancelling a pending submission reverts/stops an in-progress action (a submission under review) rather than deleting data permanently. This is a reversible modification of state — the extension still exists and can be resubmitted — making Write the most appropriate category. It is not Destructive because no data is permanently deleted.

From the tool's definition Cancel a pending submission on Chrome Web Store. Can be used to cancel an item currently in review.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs cancel safely

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

cancel Rate-limited

cancel 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "cancel": {
      "limits": [
        {
          "counter": "cancel_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about cancel

What does the cancel tool do? +

Cancel a pending submission on Chrome Web Store. Can be used to cancel an item currently in review. It is categorised as a Write tool in the Cws MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does cancel accept? +

cancel accepts 2 parameters: itemId, publisherId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on cancel? +

Register the Cws MCP server in PolicyLayer and add a rule for cancel: 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 Cws. Nothing to install.

What risk level is cancel? +

cancel is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit cancel? +

Yes. Add a rate_limit block to the cancel 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 cancel completely? +

Set action: deny in the PolicyLayer policy for cancel. 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 cancel? +

cancel is provided by the Cws MCP server (@1llum1n4t1/cws-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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