Recorded changes to this MCP component: tools, parameters, capabilities, advisories and trust-score checks. Security-relevant changes by default; append ?materiality=all for everything.https://verifymcp.iohttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1a972-dfca-7178-b6bc-531516219664https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1a972-dfca-7178-b6bc-531516219664The server rewrote its instructions, which are the text every model session reads. Compared against 2026-11-04.Thu, 05 Nov 2026 02:04:00 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1a44c-9dfe-71f2-944c-c7262b98566bhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1a44c-9dfe-71f2-944c-c7262b98566bThe server rewrote its instructions, which are the text every model session reads. Compared against 2026-11-03.Wed, 04 Nov 2026 02:04:06 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a19f26-9d65-7d3d-b6c4-6ac33530f5d9https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a19f26-9d65-7d3d-b6c4-6ac33530f5d9The server rewrote its instructions, which are the text every model session reads. Compared against 2026-11-02.Tue, 03 Nov 2026 02:04:30 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a19a03-1c1b-7d7b-a73b-d58816c2a0echttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a19a03-1c1b-7d7b-a73b-d58816c2a0ecThe server rewrote its instructions, which are the text every model session reads. Compared against 2026-11-01.Mon, 02 Nov 2026 02:07:37 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a194dc-7686-7406-95d5-62d69f07420ehttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a194dc-7686-7406-95d5-62d69f07420eThe server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-31.Sun, 01 Nov 2026 02:07:18 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a18fb5-56f0-71b8-8c20-fb80ceaed149https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a18fb5-56f0-71b8-8c20-fb80ceaed149The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-30.Sat, 31 Oct 2026 02:06:28 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a18a8f-6691-7c13-a14b-99b7960519d5https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a18a8f-6691-7c13-a14b-99b7960519d5The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-29.Fri, 30 Oct 2026 02:06:56 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a18568-4c3f-788a-b1fc-e4b71875c673https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a18568-4c3f-788a-b1fc-e4b71875c673The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-28.Thu, 29 Oct 2026 02:06:07 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a18041-c06d-759a-ad05-ba516c6e7679https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a18041-c06d-759a-ad05-ba516c6e7679The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-27.Wed, 28 Oct 2026 02:05:55 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a17b1b-ab78-7d5b-96ce-b27f6b7e6a0dhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a17b1b-ab78-7d5b-96ce-b27f6b7e6a0dThe server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-26.Tue, 27 Oct 2026 02:06:13 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a175f5-e26b-7687-8134-234002e5fda9https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a175f5-e26b-7687-8134-234002e5fda9Tool “arena_check” rewrote its description, which is the text the model reads. Compared against 2026-10-25.Mon, 26 Oct 2026 02:06:50 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a175f5-e26c-71b9-9619-6c9c9556a6f3https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a175f5-e26c-71b9-9619-6c9c9556a6f3Tool “arena_leaderboard” rewrote its description, which is the text the model reads. Compared against 2026-10-25.Mon, 26 Oct 2026 02:06:50 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a175f5-e26c-7669-a841-871f6425b9c7https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a175f5-e26c-7669-a841-871f6425b9c7Tool “arena_submit_answers” rewrote its description, which is the text the model reads. Compared against 2026-10-25.Mon, 26 Oct 2026 02:06:50 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a175f5-e26c-7c10-b9c2-f4eab42d3453https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a175f5-e26c-7c10-b9c2-f4eab42d3453Tool “arena_talk_read” rewrote its description, which is the text the model reads. Compared against 2026-10-25.Mon, 26 Oct 2026 02:06:50 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a175f5-e26d-79f6-91d1-99f152175d33https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a175f5-e26d-79f6-91d1-99f152175d33The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-25.Mon, 26 Oct 2026 02:06:50 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a170cf-956f-7155-ae04-f845b8f1c3b8https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a170cf-956f-7155-ae04-f845b8f1c3b8Tool “arena_talk_ideas” rewrote its description, which is the text the model reads. Compared against 2026-10-24.Sun, 25 Oct 2026 02:06:54 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a170cf-9570-708d-8193-0055677c5fd5https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a170cf-9570-708d-8193-0055677c5fd5The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-24.Sun, 25 Oct 2026 02:06:54 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a16ba8-d28c-78c1-a4d5-e7e1a80775a9https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a16ba8-d28c-78c1-a4d5-e7e1a80775a9Tool “arena_info” rewrote its description, which is the text the model reads. Compared against 2026-10-23.Sat, 24 Oct 2026 02:06:28 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a16ba8-d28d-753a-81d6-18f1a128ec98https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a16ba8-d28d-753a-81d6-18f1a128ec98Tool “arena_leaderboard” rewrote its description, which is the text the model reads. Compared against 2026-10-23.Sat, 24 Oct 2026 02:06:28 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a16ba8-d28d-7a9c-bead-6e41424c1e9ehttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a16ba8-d28d-7a9c-bead-6e41424c1e9eThe server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-23.Sat, 24 Oct 2026 02:06:28 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a16682-60b9-7ec1-892d-1b253eedda2bhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a16682-60b9-7ec1-892d-1b253eedda2bTool “arena_info” rewrote its description, which is the text the model reads. Compared against 2026-10-22.Fri, 23 Oct 2026 02:06:22 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a16682-60bb-7564-9645-234a1d5c57a7https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a16682-60bb-7564-9645-234a1d5c57a7The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-22.Fri, 23 Oct 2026 02:06:22 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1615b-f18d-72db-80c5-cbc6e3b97333https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1615b-f18d-72db-80c5-cbc6e3b97333The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-21.Thu, 22 Oct 2026 02:06:17 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a15c30-81c8-7d65-9232-51f3c447beb8https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a15c30-81c8-7d65-9232-51f3c447beb8The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-20.Wed, 21 Oct 2026 02:00:45 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1570a-3dcc-755d-9d38-98f043203617https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1570a-3dcc-755d-9d38-98f043203617The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-19.Tue, 20 Oct 2026 02:00:51 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1543f-6976-727d-acd4-4d151ea73549https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1543f-6976-727d-acd4-4d151ea73549Tool “arena_info” rewrote its description, which is the text the model reads. Compared against 2026-10-19.Mon, 19 Oct 2026 13:00:04 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1543f-6983-7831-9f43-098cac85549ahttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a1543f-6983-7831-9f43-098cac85549aTool “arena_validate_symbol” rewrote its description, which is the text the model reads. Compared against 2026-10-19.Mon, 19 Oct 2026 13:00:04 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-5143-7a84-9146-7d787253a493https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-5143-7a84-9146-7d787253a493Judged manipulation (pass → unverified). Compared against 2026-10-18.Mon, 19 Oct 2026 02:01:19 GMTsecurityregressioncheck.unverifiablehttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-5144-78c3-aae5-a62c08bf521fhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-5144-78c3-aae5-a62c08bf521fAuthorization (unverified → partial). Compared against 2026-10-18.Mon, 19 Oct 2026 02:01:19 GMTsecurityimprovementcheck.reverifiedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-514a-72bc-ad51-8ac3563113edhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-514a-72bc-ad51-8ac3563113edTool “arena_leagues” rewrote its description, which is the text the model reads. Compared against 2026-10-18.Mon, 19 Oct 2026 02:01:19 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-514c-7696-8964-f03d2ebfbf08https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-514c-7696-8964-f03d2ebfbf08Tool “arena_register” rewrote its description, which is the text the model reads. Compared against 2026-10-18.Mon, 19 Oct 2026 02:01:19 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-5150-7e09-9f26-96b53453b2f1https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-5150-7e09-9f26-96b53453b2f1Tool “arena_submit_weights” rewrote its description, which is the text the model reads. Compared against 2026-10-18.Mon, 19 Oct 2026 02:01:19 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-5155-7cd5-b1a8-9b0ee1adbcf1https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a151e4-5155-7cd5-b1a8-9b0ee1adbcf1The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-18.Mon, 19 Oct 2026 02:01:19 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14cbd-82a2-76a1-9ae3-8e9b0d633d02https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14cbd-82a2-76a1-9ae3-8e9b0d633d02The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-17.Sun, 18 Oct 2026 02:00:50 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14797-12f2-7ba7-8810-b80fddc1f810https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14797-12f2-7ba7-8810-b80fddc1f810Tool “arena_leagues” rewrote its description, which is the text the model reads. Compared against 2026-10-16.Sat, 17 Oct 2026 02:00:45 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14797-12f3-792a-a953-323081ce5f1bhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14797-12f3-792a-a953-323081ce5f1bTool “arena_register” rewrote its description, which is the text the model reads. Compared against 2026-10-16.Sat, 17 Oct 2026 02:00:45 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14797-12f4-7c8b-a38d-79ff800ae9f0https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14797-12f4-7c8b-a38d-79ff800ae9f0Tool “arena_submit_weights” rewrote its description, which is the text the model reads. Compared against 2026-10-16.Sat, 17 Oct 2026 02:00:45 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14797-12f5-7c14-b0e4-6fca7a1e506ehttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14797-12f5-7c14-b0e4-6fca7a1e506eTool “arena_update_maker” rewrote its description, which is the text the model reads. Compared against 2026-10-16.Sat, 17 Oct 2026 02:00:45 GMTsecurityneutraltool.description_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14797-12f7-7dd5-8e96-fe9f47913d03https://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14797-12f7-7dd5-8e96-fe9f47913d03The server rewrote its instructions, which are the text every model session reads. Compared against 2026-10-16.Sat, 17 Oct 2026 02:00:45 GMTsecurityneutralserver.instructions_changedhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14270-773f-77f6-a7a8-d35af8e122bdhttps://verifymcp.io/servers/agentarenaleague-agent-arena/agentarenaleague#chg-chg_01a14270-773f-77f6-a7a8-d35af8e122bdTool “arena_update_maker” rewrote its description, which is the text the model reads. Compared against 2026-10-15.Fri, 16 Oct 2026 02:00:28 GMTsecurityneutraltool.description_changed