Delete an existing bookmark in a Jujutsu (jj) repository and propagate the deletion to remotes on the next push. Parameters: names (Names of bookmarks to delete), repoPath (Optional path to repo root or working directory), cwd (Optional working directory to run the command in).
AI agents call bookmark-delete to permanently remove resources in Jj — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool irreversibly deletes bookmarks and propagates those deletions to remote repositories. Once deleted and pushed, the action cannot be trivially reversed—it requires recovery operations or force-pushes.
From the tool's definition Tool name is 'bookmark-delete' and description explicitly states 'Delete an existing bookmark in a Jujutsu (jj) repository and propagate the deletion to remotes on the next push.' The word 'Delete' combined with propagation to remotes indicates an…
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
Delete an existing bookmark in a Jujutsu (jj) repository and propagate the deletion to remotes on the next push. Parameters: names (Names of bookmarks to delete), repoPath (Optional path to repo root or working directory), cwd (Optional working directory to run the command in). It is categorised as a Destructive tool in the Jj MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Jj MCP server in PolicyLayer and add a rule for bookmark-delete: 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 Jj. Nothing to install.
bookmark-delete is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the bookmark-delete 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 bookmark-delete. 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.
bookmark-delete is provided by the Jj MCP server (jj-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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