contacts-unfollow
Unfollow a Nostr pubkey. Fetches current contact list, removes the pubkey, publishes updated kind 3. If the list would shrink by >20%, returns a guarded warning — pass confirm: true to proceed.
This record as markdown: /tools/dev-forgesworn-bray/contacts-unfollow.md
What contacts-unfollow does on Nostr Bray
AI agents use contacts-unfollow 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 contacts-unfollow is rated Medium
This tool modifies the user's contact list by removing a pubkey and republishing it. While it removes data, the action is reversible (the user can re-follow), so it falls under Write rather than Destructive. The guarded warning for >20% list shrinkage indicates awareness of potential misuse. Severity is medium because bulk unfollowing could disrupt the user's social graph, but it is recoverable.
From the tool's definition Unfollow a Nostr pubkey. Fetches current contact list, removes the pubkey, publishes updated kind 3.
Attacks that exploit this kind of access
The rule that runs contacts-unfollow 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 contacts-unfollow, this is the rule to start with:
contacts-unfollow 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 contacts-unfollow call is checked against it from then on.
Questions about contacts-unfollow
Unfollow a Nostr pubkey. Fetches current contact list, removes the pubkey, publishes updated kind 3. If the list would shrink by >20%, returns a guarded warning — pass confirm: true to proceed. 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 contacts-unfollow: 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.
contacts-unfollow 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 contacts-unfollow 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 contacts-unfollow. 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.
contacts-unfollow 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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