Read the full text of a Herald article by its slug. Returns the article body, perspectives, and sources.
AI agents call read_article to retrieve information from Hallucination Herald MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and returns article content (body, perspectives, sources) without modifying, deleting, or executing operations. It is a straightforward data retrieval operation with no capability to alter state or trigger external actions. The only data exposure risk is the content of the articles themselves, which is already published on the platform, making this a low-severity read operation.
From the tool's definition Tool name is 'read_article' and description states 'Read the full text of a Herald article' — retrieves article data with no side effects.
Attacks that exploit this kind of access
Read the full text of a Herald article by its slug. Returns the article body, perspectives, and sources. It is categorised as a Read tool in the Hallucination Herald MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Hallucination Herald MCP Server MCP server in PolicyLayer and add a rule for read_article: 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 Hallucination Herald MCP Server. Nothing to install.
read_article 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 read_article 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 read_article. 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.
read_article is provided by the Hallucination Herald MCP Server MCP server (jotapee/hallucinationherald-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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