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NEXUS AI

by io.github.nexusrun
OverviewDiscussions(2)Admin

Restore Database from Backup

nexusai_db_restore
Destructive

Restore a database service from a previously created backup.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "serviceId": "<serviceId>",
      "backupId": "<backupId>"
    },
    "name": "nexusai_db_restore"
  }
}

Input Schema

NameRequiredDescriptionDefault
backupIdYesBackup ID to restore from.
serviceIdYesDeploymentService ID to restore into.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare destructiveHint=true and readOnlyHint=false, so the safety profile is known. The description adds nothing beyond that: it never says existing data is overwritten, whether downtime occurs, whether the backup must be in the same region, or whether the operation is asynchronous.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single efficient sentence with the action front-loaded and no filler. It is appropriately sized but leaves useful detail on the table.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a destructive, non-read-only mutation with no output schema, the description should at minimum say what gets overwritten and what the agent should verify first. As written it is too thin for the risk level of the operation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so both serviceId and backupId are already documented in the schema. The description adds no format, constraint, or cross-parameter semantics beyond that baseline.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb (Restore) and resource (database service from backup), which is clearer than the bare name. However, it does not distinguish itself from the close siblings nexusai_db_restore_to or nexusai_managed_db_restore, leaving the agent to infer the difference.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No when-to-use guidance, no prerequisites (e.g. whether the backup must belong to the same service), and no mention of alternatives such as restore_to. The agent gets no routing help at all.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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