get_values

Get all values from a JSON object.

SERVERTinyFn SOURCEhttps://api.tinyfn.io/mcp/all/

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/io-tinyfn-tinyfn/get-values.md

WHAT IT DOES

What get_values does on TinyFn

AI agents call get_values to retrieve information from TinyFn 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
`json_string`	string	Yes	JSON object string

Parameters from the server's own tool schema.

RISK

Why get_values is rated Low

This tool retrieves data from a JSON structure without side effects. It is a read-only query operation that extracts values, fitting the Read category. Severity is low because misuse cannot cause data loss, financial harm, or external system damage; at worst it could expose internal data structure contents.

From the tool's definition Tool is described as 'Get all values from a JSON object' — a retrieval operation with no modification, deletion, or execution of external code.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_values safely

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

get_values Allowed

get_values 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_values": {}
  }
}

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

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

FAQ

Questions about get_values

What does the get_values tool do? +

Get all values from a JSON object. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.

What parameters does get_values accept? +

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

How do I enforce a policy on get_values? +

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

What risk level is get_values? +

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

Can I rate-limit get_values? +

Yes. Add a rate_limit block to the get_values 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_values completely? +

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

get_values is provided by the TinyFn MCP server (https://api.tinyfn.io/mcp/all/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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