<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>MaterialsCodeGraph · api · 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-materialscodegraph-mcg/api.xml" rel="self" type="application/rss+xml"/><item><title>[SECURITY] api: Tool “mcg_catalog” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a1680e-3e03-7c80-b0e8-a2e4fe9c2b49</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a1680e-3e03-7c80-b0e8-a2e4fe9c2b49</guid><description>Tool “mcg_catalog” rewrote its description, which is the text the model reads. Compared against 2026-10-22.</description><pubDate>Fri, 23 Oct 2026 09:18:46 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] api: Tool “mcg_fetch_artifacts” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a1680e-3e05-75f0-82e1-3540003a4125</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a1680e-3e05-75f0-82e1-3540003a4125</guid><description>Tool “mcg_fetch_artifacts” rewrote its description, which is the text the model reads. Compared against 2026-10-22.</description><pubDate>Fri, 23 Oct 2026 09:18:46 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] api: Tool “mcg_get_artifact” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a1680e-3e05-7e04-afce-4675be5dfcd8</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a1680e-3e05-7e04-afce-4675be5dfcd8</guid><description>Tool “mcg_get_artifact” rewrote its description, which is the text the model reads. Compared against 2026-10-22.</description><pubDate>Fri, 23 Oct 2026 09:18:46 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] api: Tool “mcg_catalog” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a15371-b636-7199-abad-370dcbf78134</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a15371-b636-7199-abad-370dcbf78134</guid><description>Tool “mcg_catalog” rewrote its description, which is the text the model reads. Compared against 2026-10-18.</description><pubDate>Mon, 19 Oct 2026 09:15:23 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] api: Tool “mcg_quote” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a15371-b637-714d-b66e-3e59352d33d2</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a15371-b637-714d-b66e-3e59352d33d2</guid><description>Tool “mcg_quote” rewrote its description, which is the text the model reads. Compared against 2026-10-18.</description><pubDate>Mon, 19 Oct 2026 09:15:23 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] api: Tool “mcg_catalog” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a14e4d-b0ba-72f5-b99e-b13858601df4</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a14e4d-b0ba-72f5-b99e-b13858601df4</guid><description>Tool “mcg_catalog” rewrote its description, which is the text the model reads. Compared against 2026-10-17.</description><pubDate>Sun, 18 Oct 2026 09:17:55 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] api: Tool “mcg_quote” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a14e4d-b112-7454-88b6-c6d6af6167de</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a14e4d-b112-7454-88b6-c6d6af6167de</guid><description>Tool “mcg_quote” rewrote its description, which is the text the model reads. Compared against 2026-10-17.</description><pubDate>Sun, 18 Oct 2026 09:17:55 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] api: Tool “mcg_get_run” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a139b3-cbc3-70d7-bfc6-1f76d6edff3b</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a139b3-cbc3-70d7-bfc6-1f76d6edff3b</guid><description>Tool “mcg_get_run” rewrote its description, which is the text the model reads. Compared against 2026-10-13.</description><pubDate>Wed, 14 Oct 2026 09:17:25 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] api: Transport (unverified → pass)</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a125f8-e87b-7851-9096-d13060c98fd8</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a125f8-e87b-7851-9096-d13060c98fd8</guid><description>Transport (unverified → pass). Compared against 2026-10-04.</description><pubDate>Sat, 10 Oct 2026 13:20:31 GMT</pubDate><category>security</category><category>improvement</category><category>check.reverified</category></item><item><title>[SECURITY] api: Injection markers (unverified → pass)</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a125f8-e881-7180-95ea-34301373d14a</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a125f8-e881-7180-95ea-34301373d14a</guid><description>Injection markers (unverified → pass). Compared against 2026-10-04.</description><pubDate>Sat, 10 Oct 2026 13:20:31 GMT</pubDate><category>security</category><category>improvement</category><category>check.reverified</category></item><item><title>[SECURITY] api: Authorization (Authorisation is enforced on tool calls, but the challenge carries no valid RFC 9728 metadata, so a client cannot discover where to get a token.)</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a125f8-e882-75c3-8e16-045e002173a3</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a125f8-e882-75c3-8e16-045e002173a3</guid><description>Authorization (Authorisation is enforced on tool calls, but the challenge carries no valid RFC 9728 metadata, so a client cannot discover where to get a token.). Compared against 2026-10-04.</description><pubDate>Sat, 10 Oct 2026 13:20:31 GMT</pubDate><category>security</category><category>neutral</category><category>check.reason</category></item><item><title>[SECURITY] api: First check of Judged manipulation (pass)</title><link>https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a125f8-e883-7041-b4a8-8bcb3ac64715</link><guid isPermaLink="true">https://verifymcp.io/servers/com-materialscodegraph-mcg/api#chg-chg_01a125f8-e883-7041-b4a8-8bcb3ac64715</guid><description>First check of Judged manipulation (pass). Compared against 2026-10-04.</description><pubDate>Sat, 10 Oct 2026 13:20:31 GMT</pubDate><category>security</category><category>neutral</category><category>check.appeared</category></item></channel></rss>