Cloud World Model

Where it sits in the directory's order

What can be seen from outside, weighed as the directory publishes.

Where it answers

• https://www.cloudworldmodel.ai/mcpstreamable-http
  • x-api-key optional, secret: Optional. Cloud World Model API key; unlocks all 62 tools (9 demo tools work without it).

The tools it lists (9, as of 6 days ago)

The tool-description rules found nothing in these descriptions. They look for instructions aimed at a model and for hidden characters; they cannot see what a tool does when it runs.

• simulation.inject_failure

  Fail one compute/Kubernetes node or database in a temporary anonymous demo simulation (marked critical, not removed). Targeted database quick failures are bounded and reversible; with no serving database at positive load, simulation.step reports 100% errors, zero goodput and errorBreakdown.dbFailure: 100. simulation.recover_resource can restore the database early. An AWS Aurora writer with characteristics.auroraStandbyResourceId pointing to a healthy related replicaOf database has an opt-in modeled failover: the first step is unavailable, the second shows the standby serving without a residual

• simulation.recover_resource

  Recover one reversible failed resource in a temporary anonymous demo simulation. No API key required for this temporary anonymous demo operation. Lower traffic to a serviceable level first, then provide resourceId or resourceName from simulation.create, simulation.step, or simulation.metrics. This deactivates applicable instance_down/database_overload failures for only the selected resource and returns recoveryProgress with parked, cooling_down, or healthy state plus cooldown counters. It cannot restore an instance_kill because that failure permanently removes the resource. The likely next too

• simulation.delete

  Permanently delete an owned temporary anonymous demo simulation and its metrics, events, failures, and capability. This is the explicit way to free a simulation slot; deletion is irreversible, while the existing demo TTL remains the safety net for abandoned simulations. Prerequisite: a simulationId from simulation.create, or an active simulation in the preserved MCP session. The likely next tool is simulation.create to use the freed slot. A successful response is { deleted: true, id }; failed ownership checks do not delete or revoke anything. Authenticate with an API key to unlock all 62 tools

• scenario.list

  List the built-in demo scenarios as compact catalog cards — stable IDs, title/name, description, difficulty, tags, category, duration, provider summary, resource/connection counts, named active/optional traffic phases, and retry-workload disclosure. Use it as the first call when you want a ready-made architecture instead of designing one; the cards intentionally omit resource, connection, traffic-pattern, and failure-injection graphs. Anonymous discovery includes only scenarios with at most 10 resources so every listed card is demo-creatable. No prerequisites. Optionally narrow discovery with