AI agents call ascii_decode to retrieve information from TinyFn without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
codes | string | Yes | Space-separated ASCII codes |
Parameters from the server's own tool schema.
This tool decodes ASCII codes into human-readable text, which is a read-only operation that retrieves or transforms data without modifying, creating, or deleting any state. It poses minimal security risk and belongs in the Read category. Severity is low because even if misused, the tool only produces text output with no external effects or data destruction.
From the tool's definition Tool name 'ascii_decode' and description 'Convert ASCII codes to text' indicate a data retrieval and transformation operation with no side effects.
Attacks that exploit this kind of access
Convert ASCII codes to text. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
ascii_decode accepts 1 parameter: codes. Required: codes. 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 ascii_decode: 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.
ascii_decode 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 ascii_decode 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 ascii_decode. 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.
ascii_decode 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.
ascii_decode is one line of TinyFn's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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