<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>ChatStack - App Cost Estimator · 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/app-chatstack-app-cost-estimator/mcp.xml" rel="self" type="application/rss+xml"/><item><title>[SECURITY] mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/app-chatstack-app-cost-estimator/mcp#chg-chg_01a19eb5-de1c-788b-aa6c-74df14c23ebc</link><guid isPermaLink="true">https://verifymcp.io/servers/app-chatstack-app-cost-estimator/mcp#chg-chg_01a19eb5-de1c-788b-aa6c-74df14c23ebc</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-11-02.</description><pubDate>Tue, 03 Nov 2026 00:01:21 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item></channel></rss>