trust-spoken-encode
Generate a spoken token in an alternative encoding: PIN digits for phone keypads, hex for technical contexts, or multi-word for higher entropy. Same HMAC derivation as trust-spoken-challenge but with configurable output format.
This record as markdown: /tools/dev-forgesworn-bray/trust-spoken-encode.md
What trust-spoken-encode does on Nostr Bray
AI agents call trust-spoken-encode to retrieve information from Nostr Bray without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why trust-spoken-encode is rated Low
The tool generates/encodes a token in a different format (PIN digits, hex, or multi-word). This is a pure computation/read operation — it derives and returns a value without modifying, deleting, or transmitting anything. No writes, executions, or financial actions are indicated.
From the tool's definition 'Generate a spoken token' and 'Same HMAC derivation as trust-spoken-challenge but with configurable output format' — the tool produces/encodes a token value, no side effects described
Attacks that exploit this kind of access
The rule that runs trust-spoken-encode safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nostr Bray, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For trust-spoken-encode, this is the rule to start with:
trust-spoken-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 Nostr Bray, apply this rule, and every trust-spoken-encode call is checked against it from then on.
Questions about trust-spoken-encode
Generate a spoken token in an alternative encoding: PIN digits for phone keypads, hex for technical contexts, or multi-word for higher entropy. Same HMAC derivation as trust-spoken-challenge but with configurable output format. It is categorised as a Read tool in the Nostr Bray MCP Server, which means it retrieves data without modifying state.
Register the Nostr Bray MCP server in PolicyLayer and add a rule for trust-spoken-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 Nostr Bray. Nothing to install.
trust-spoken-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 trust-spoken-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 trust-spoken-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.
trust-spoken-encode is provided by the Nostr Bray MCP server (nostr-bray). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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