<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>com.postboxservices/postbox-tools · mcp · changes | VerifyMCP</title><description>Recorded changes to this MCP component: tools, parameters, capabilities, advisories and trust-score checks. Security-relevant changes by default; append ?materiality=all for everything.</description><link>https://verifymcp.io</link><atom:link href="https://verifymcp.io/servers/com-postboxservices-postbox-tools/mcp.xml" rel="self" type="application/rss+xml"/><item><title>[SECURITY] mcp: Tool “check_blacklist” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/com-postboxservices-postbox-tools/mcp#chg-chg_01a0e1bd-b678-77ea-aa42-4a5ad5aa77c4</link><guid isPermaLink="true">https://verifymcp.io/servers/com-postboxservices-postbox-tools/mcp#chg-chg_01a0e1bd-b678-77ea-aa42-4a5ad5aa77c4</guid><description>Tool “check_blacklist” rewrote its description, which is the text the model reads. Compared against 2026-09-26.</description><pubDate>Sun, 27 Sep 2026 07:21:41 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item></channel></rss>