<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Syl Guardian · guardian · 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/io-sylai-guardian/guardian.xml" rel="self" type="application/rss+xml"/><item><title>[SECURITY] guardian: Tool “guardian_review” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a18451-37d8-7b77-b530-9cab3fd554ea</link><guid isPermaLink="true">https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a18451-37d8-7b77-b530-9cab3fd554ea</guid><description>Tool “guardian_review” rewrote its description, which is the text the model reads. Compared against 2026-10-28.</description><pubDate>Wed, 28 Oct 2026 21:01:17 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] guardian: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a18451-37dd-787a-8268-0fc4325aea66</link><guid isPermaLink="true">https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a18451-37dd-787a-8268-0fc4325aea66</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-28.</description><pubDate>Wed, 28 Oct 2026 21:01:17 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] guardian: HSTS header (pass → fail)</title><link>https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a16611-955c-765c-bcdf-eeca1ee646ee</link><guid isPermaLink="true">https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a16611-955c-765c-bcdf-eeca1ee646ee</guid><description>HSTS header (pass → fail). Compared against 2026-10-22.</description><pubDate>Fri, 23 Oct 2026 00:03:10 GMT</pubDate><category>security</category><category>regression</category><category>check.verdict</category></item><item><title>[SECURITY] guardian: Tool “guardian_review” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a16611-9560-709c-8201-73fd95090452</link><guid isPermaLink="true">https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a16611-9560-709c-8201-73fd95090452</guid><description>Tool “guardian_review” rewrote its description, which is the text the model reads. Compared against 2026-10-22.</description><pubDate>Fri, 23 Oct 2026 00:03:10 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] guardian: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a16611-9562-7bf6-b882-8319af74480e</link><guid isPermaLink="true">https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a16611-9562-7bf6-b882-8319af74480e</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-22.</description><pubDate>Fri, 23 Oct 2026 00:03:10 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item></channel></rss>