get_index_synonyms

THE RISK

Low Risk

Why get_index_synonyms needs a policy

This tool retrieves configuration data (synonyms) from an index without modifying, deleting, or executing any operations. It is a pure query/retrieval function, making it a Read category tool with low severity since exposure poses minimal risk—an AI agent using this tool can only access already-stored metadata about the index.

From the tool's definition Tool is named 'get_index_synonyms' and described as 'Get all synonyms defined for an index.' The verb 'Get' and the retrieval-only nature of querying existing synonym configurations indicate a read operation with no side effects.

Documented attack patterns abuse exactly the kind of access get_index_synonyms gives an agent:

POLICY

How to control get_index_synonyms

PolicyLayer is an MCP gateway — it sits between your AI agents and Searchcraft MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_index_synonyms:

policy.json

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

get_index_synonyms is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Searchcraft MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Searchcraft MCP Server tools

Destructive delete_all_documents Delete all documents from an index. The index will continue to exist after all documents a Destructive delete_all_keys Delete all authentication keys on the Searchcraft cluster. Use with extreme caution! Destructive delete_all_stopwords Delete all custom stopwords from an index. This only affects custom stopwords, not the def Destructive delete_all_synonyms Delete all synonyms from an index. Destructive delete_document_by_id Delete a single document from an index by its internal Searchcraft ID (_id). Destructive delete_documents_by_field Delete one or several documents from an index by field term match (e.g., {id: Destructive delete_documents_by_query Delete one or several documents from an index by query match. Destructive delete_federation Delete a federation permanently.

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_index_synonyms

What does the get_index_synonyms tool do? +

Get all synonyms defined for an index. It is categorised as a Read tool in the Searchcraft MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_index_synonyms? +

Register the Searchcraft MCP Server MCP server in PolicyLayer and add a rule for get_index_synonyms: 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 Searchcraft MCP Server. Nothing to install.

What risk level is get_index_synonyms? +

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

Can I rate-limit get_index_synonyms? +

Yes. Add a rate_limit block to the get_index_synonyms 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_synonyms completely? +

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

get_index_synonyms is provided by the Searchcraft MCP Server MCP server (searchcraft-inc/searchcraft-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Searchcraft MCP Server tool call.

Start from Searchcraft MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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