dispatch-capability-discover
Discover dispatch-capable agents on Nostr. Searches for NIP-89 capability cards (kind 31990) tagged with the dispatch protocol. Optionally filter by task type. Returns agent names, descriptions, supported task types, repos, and availability.
This record as markdown: /tools/dev-forgesworn-bray/dispatch-capability-discover.md
What dispatch-capability-discover does on Nostr Bray
AI agents call dispatch-capability-discover 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 dispatch-capability-discover is rated Low
This tool retrieves and queries published Nostr protocol data (NIP-89 capability cards) to discover available agents. It performs no write, delete, or execute operations—purely informational lookup. The low severity reflects minimal blast radius if misused; an agent discovering agents poses no direct harm beyond potential enumeration for reconnaissance.
From the tool's definition The tool "discovers dispatch-capable agents" and "searches for NIP-89 capability cards", returning agent metadata (names, descriptions, task types, repos, availability).
Attacks that exploit this kind of access
The rule that runs dispatch-capability-discover 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 dispatch-capability-discover, this is the rule to start with:
dispatch-capability-discover 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 dispatch-capability-discover call is checked against it from then on.
Questions about dispatch-capability-discover
Discover dispatch-capable agents on Nostr. Searches for NIP-89 capability cards (kind 31990) tagged with the dispatch protocol. Optionally filter by task type. Returns agent names, descriptions, supported task types, repos, and availability. 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 dispatch-capability-discover: 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.
dispatch-capability-discover 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 dispatch-capability-discover 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 dispatch-capability-discover. 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.
dispatch-capability-discover 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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