This record as markdown: /tools/io-tinyfn-tinyfn/geohash-encode.md
What geohash_encode does on TinyFn
AI agents call geohash_encode 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 |
|---|---|---|---|
lat | number | Yes | Latitude |
lon | number | Yes | Longitude |
precision | integer | — | Precision (1-12) |
Parameters from the server's own tool schema.
Why geohash_encode is rated Low
This tool converts geographic coordinates into a geohash string. It is a pure encoding/transformation operation with no external interactions, data storage, or side effects. It falls squarely in the Read category as a data transformation utility.
From the tool's definition 'Encode coordinates to geohash' — pure deterministic transformation of input data, no side effects
Attacks that exploit this kind of access
The rule that runs geohash_encode 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 geohash_encode, this is the rule to start with:
geohash_encode is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect TinyFn, apply this rule, and every geohash_encode call is checked against it from then on.
Questions about geohash_encode
Encode coordinates to geohash. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
geohash_encode accepts 3 parameters: lat, lon, precision. Required: lat, lon. The full parameter table on this page comes from the server's own tool schema.
Register the TinyFn MCP server in PolicyLayer and add a rule for geohash_encode: 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.
geohash_encode is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the geohash_encode 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.
Set action: deny in the PolicyLayer policy for geohash_encode. 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.
geohash_encode 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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