ops

Run one verb on one machine. Single API for every Yaver capability (info, run, build, test, deploy, push, reload, logs, status, env, session, scale, provision, destroy, ...). Discover available verbs via ops_verbs.

Server Yaver yaver-cli
Category Destructive
Risk class Critical
Parameters 31 required

What ops does on Yaver

AI agents call ops to permanently remove resources in Yaver — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

ParameterTypeRequiredDescription
verb string Yes Verb name. Call ops_verbs for the registered list + each verb's payload schema.
machine string Target: "local", "auto", "primary", or a deviceId / alias. Cross-machine routing is supported; "auto" uses project-aware placement for deploy/reload and otherwi
payload object Verb-specific payload. Shape depends on verb.

Parameters from the server's own tool schema.

Why ops needs a policy

An AI agent that decides to call ops doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from Yaver is gone — there is no undo for destructive operations.

Risk signalsAccepts raw HTML/template content (payload) · Bulk/mass operation — affects multiple targets

Questions about ops

What does the ops tool do? +

Run one verb on one machine. Single API for every Yaver capability (info, run, build, test, deploy, push, reload, logs, status, env, session, scale, provision, destroy, ...). Discover available verbs via ops_verbs. It is categorised as a Destructive tool in the Yaver MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

What parameters does ops accept? +

ops accepts 3 parameters: verb, machine, payload. Required: verb. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on ops? +

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

What risk level is ops? +

ops 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 ops? +

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

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

ops is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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