trust-claim
Make a direct statement about another identity — an endorsement, review, vouch, or any attestor-originated claim. You define the type and subject. Use trust-attest instead if the subject has published their own assertion event.
This record as markdown: /tools/dev-forgesworn-bray/trust-claim.md
What trust-claim does on Nostr Bray
AI agents use trust-claim to create or update resources in Nostr Bray, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Nostr Bray environment.
Why trust-claim is rated Medium
This tool creates and publishes a trust claim (endorsement, review, or vouch) about another identity on the Nostr network. It creates new data reversibly (a signed event can be superseded or deleted), making it a Write operation. Misuse could harm reputations or manipulate trust graphs, warranting medium severity.
From the tool's definition 'Make a direct statement about another identity — an endorsement, review, vouch, or any attestor-originated claim.'
Attacks that exploit this kind of access
The rule that runs trust-claim 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-claim, this is the rule to start with:
trust-claim stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. 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-claim call is checked against it from then on.
Questions about trust-claim
Make a direct statement about another identity — an endorsement, review, vouch, or any attestor-originated claim. You define the type and subject. Use trust-attest instead if the subject has published their own assertion event. It is categorised as a Write tool in the Nostr Bray MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Nostr Bray MCP server in PolicyLayer and add a rule for trust-claim: 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-claim is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the trust-claim 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-claim. 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-claim 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.
More on Nostr Bray, and thousands of servers like it.
This server
Across the catalogue