article-publish
Publish a long-form article (NIP-23, kind 30023). Creates a replaceable event with title, markdown content, and optional metadata. The slug (d-tag) defaults to a slugified version of the title.
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What article-publish does on Nostr Bray
AI agents use article-publish 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 article-publish is rated Medium
This tool creates new content on a blockchain-like network (Nostr), which is a reversible modification operation. It does not delete or destroy data (thus not Destructive), does not execute arbitrary code (Execute), does not move funds (Financial), and is not merely a read operation.
From the tool's definition Tool description states it 'Creates a replaceable event' with article content. The verb 'Publish' combined with 'Creates' indicates this is a write operation that modifies data (publishes new content to Nostr network).
Attacks that exploit this kind of access
The rule that runs article-publish 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 article-publish, this is the rule to start with:
article-publish 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 article-publish call is checked against it from then on.
Questions about article-publish
Publish a long-form article (NIP-23, kind 30023). Creates a replaceable event with title, markdown content, and optional metadata. The slug (d-tag) defaults to a slugified version of the title. 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 article-publish: 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.
article-publish 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 article-publish 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 article-publish. 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.
article-publish 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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