get_index

Get a Firestore index.

SERVERMcp SOURCEhttps://firestore.googleapis.com/mcp

Low RISK CLASS

Category Read

Parameters 11 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-googleapis-firestore-mcp/get-index.md

WHAT IT DOES

What get_index does on Mcp

AI agents call get_index to retrieve information from Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`name`	string	Yes	Required. A name of the form `projects/{project_id}/databases/{database_id}/collectionGroups/{collection_id}/indexes/{index_id}`

Parameters from the server's own tool schema.

RISK

Why get_index is rated Low

This tool retrieves information about a Firestore index. It performs a read-only query operation with no side effects, no data modification, and no resource deletion. The blast radius of misuse is minimal—an attacker could only learn about index configurations, not alter or destroy data. This is a straightforward Read operation.

From the tool's definition Tool name is 'get_index' and description states 'Get a Firestore index.' The verb 'Get' indicates retrieval without modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_index safely

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

get_index Allowed

get_index is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_index": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about get_index

What does the get_index tool do? +

Get a Firestore index. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.

What parameters does get_index accept? +

get_index accepts 1 parameter: name. Required: name. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on get_index? +

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

What risk level is get_index? +

get_index is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_index? +

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

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

get_index is provided by the MCP server (https://firestore.googleapis.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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