Agent Arena · agentarena · changes | VerifyMCPRecorded 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.io[SECURITY] agentarena: Stability (0.97 → pass)https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a0c6ac-64fe-7980-b4c1-9ce61820bf49https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a0c6ac-64fe-7980-b4c1-9ce61820bf49Stability (0.97 → pass). Compared against 2026-09-21.Tue, 22 Sep 2026 01:13:01 GMTsecurityneutralcheck.verdict[SECURITY] agentarena: Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 12 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a09328-d602-7c3a-bf11-6806224c2d7chttps://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a09328-d602-7c3a-bf11-6806224c2d7cAuthorization (Authorisation not fully verified: no authorisation is required to call this server, and 12 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.). Compared against 2026-09-11.Sat, 12 Sep 2026 01:08:42 GMTsecurityneutralcheck.reason[SECURITY] agentarena: Transport (fail → pass)https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a09328-d601-70fd-ba5c-7a3509adbd5fhttps://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a09328-d601-70fd-ba5c-7a3509adbd5fTransport (fail → pass). Compared against 2026-09-11.Sat, 12 Sep 2026 01:08:42 GMTsecurityimprovementcheck.verdict[SECURITY] agentarena: Injection markers (unverified → pass)https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a09328-d602-7612-aef5-87dc792fcde4https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a09328-d602-7612-aef5-87dc792fcde4Injection markers (unverified → pass). Compared against 2026-09-11.Sat, 12 Sep 2026 01:08:42 GMTsecurityimprovementcheck.reverified[SECURITY] agentarena: Stability (0.57 → unverified)https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a088dc-159c-757d-92d3-0f6ca80dc230https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a088dc-159c-757d-92d3-0f6ca80dc230Stability (0.57 → unverified). Compared against 2026-09-09.Thu, 10 Sep 2026 01:08:39 GMTsecurityregressioncheck.unverifiable[SECURITY] agentarena: Transport (pass → fail)https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a088dc-159d-7997-b388-36ad5ab0b44ehttps://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a088dc-159d-7997-b388-36ad5ab0b44eTransport (pass → fail). Compared against 2026-09-09.Thu, 10 Sep 2026 01:08:39 GMTsecurityregressioncheck.verdict[SECURITY] agentarena: Tool safety (pass → unverified)https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a088dc-159e-70db-9d76-57f46f05c6cdhttps://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a088dc-159e-70db-9d76-57f46f05c6cdTool safety (pass → unverified). Compared against 2026-09-09.Thu, 10 Sep 2026 01:08:39 GMTsecurityregressioncheck.unverifiable[SECURITY] agentarena: Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the whole tool list to see what that exposes.)https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a088dc-159e-7804-9ae1-581069becaabhttps://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a088dc-159e-7804-9ae1-581069becaabAuthorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the whole tool list to see what that exposes.). Compared against 2026-09-09.Thu, 10 Sep 2026 01:08:39 GMTsecurityneutralcheck.reason[SECURITY] agentarena: Endpoint reachability (reachable → not serving MCP)https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a088dc-15a0-71bc-8303-a838856e9a34https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a088dc-15a0-71bc-8303-a838856e9a34Endpoint reachability (reachable → not serving MCP). Compared against 2026-09-09.Thu, 10 Sep 2026 01:08:39 GMTsecurityregressioncapture.status_changed[SECURITY] agentarena: Tool “arena_clash” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a04b0f-b439-705a-a3cd-cbbef93337c3https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a04b0f-b439-705a-a3cd-cbbef93337c3Tool “arena_clash” rewrote its description, which is the text the model reads. Compared against 2026-08-28.Sat, 29 Aug 2026 01:08:35 GMTsecurityneutraltool.description_changed[SECURITY] agentarena: Tool “arena_play” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a045e9-7207-7a37-8170-7d4484944973https://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a045e9-7207-7a37-8170-7d4484944973Tool “arena_play” rewrote its description, which is the text the model reads. Compared against 2026-08-27.Fri, 28 Aug 2026 01:08:42 GMTsecurityneutraltool.description_changed[SECURITY] agentarena: Tool “arena_board” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a040c2-f3e1-7834-841a-924d6d8c297fhttps://verifymcp.io/servers/lol-agentarena-arena/agentarena#chg-chg_01a040c2-f3e1-7834-841a-924d6d8c297fTool “arena_board” rewrote its description, which is the text the model reads. Compared against 2026-08-26.Thu, 27 Aug 2026 01:08:33 GMTsecurityneutraltool.description_changed