402Signal · 402signal · 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] 402signal: Stability (0.47 → fail)https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abef-761e-94a1-9031dd9799a8https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abef-761e-94a1-9031dd9799a8Stability (0.47 → fail). Compared against 2026-09-13.Mon, 14 Sep 2026 06:07:00 GMTsecurityregressioncheck.verdict[SECURITY] 402signal: Authorization (unverified → partial)https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abf0-7a2d-975f-45d90ca13b5ahttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abf0-7a2d-975f-45d90ca13b5aAuthorization (unverified → partial). Compared against 2026-09-13.Mon, 14 Sep 2026 06:07:00 GMTsecurityimprovementcheck.reverified[SECURITY] 402signal: Tool “preview” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abf2-7b9b-a7f1-5f1ed3525362https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abf2-7b9b-a7f1-5f1ed3525362Tool “preview” rewrote its description, which is the text the model reads. Compared against 2026-09-13.Mon, 14 Sep 2026 06:07:00 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “route” was removedhttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abf3-7d30-a3f1-15595506400dhttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abf3-7d30-a3f1-15595506400dTool “route” was removed. Compared against 2026-09-13.Mon, 14 Sep 2026 06:07:00 GMTsecurityregressiontool.removed[SECURITY] 402signal: Tool “validate” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abf4-736b-b7a2-fa2277aeaf56https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abf4-736b-b7a2-fa2277aeaf56Tool “validate” rewrote its description, which is the text the model reads. Compared against 2026-09-13.Mon, 14 Sep 2026 06:07:00 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: A breaking change shipped without a version bump (still 0.5.0)https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abf4-7e23-bf6d-aa94e407c681https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09e86-abf4-7e23-bf6d-aa94e407c681A breaking change shipped without a version bump (still 0.5.0). Compared against 2026-09-13.Mon, 14 Sep 2026 06:07:00 GMTsecurityregressionserver.breaking_without_version_bump[SECURITY] 402signal: Injection markers (unverified → pass)https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09960-0dad-75c1-99e4-ee34d4a0b0c2https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09960-0dad-75c1-99e4-ee34d4a0b0c2Injection markers (unverified → pass). Compared against 2026-09-12.Sun, 13 Sep 2026 06:06:43 GMTsecurityimprovementcheck.reverified[SECURITY] 402signal: Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 3 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/402signal-402signal/402signal#chg-chg_01a09960-0dae-7805-ac3f-884374d8b805https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09960-0dae-7805-ac3f-884374d8b805Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 3 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 2026-09-12.Sun, 13 Sep 2026 06:06:43 GMTsecurityneutralcheck.reason[SECURITY] 402signal: Tool “preview” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09960-0db0-7c90-b245-30cc6586c128https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09960-0db0-7c90-b245-30cc6586c128Tool “preview” rewrote its description, which is the text the model reads. Compared against 2026-09-09.Sun, 13 Sep 2026 06:06:43 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “route” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09960-0db1-72cb-9b5c-762d2c695d03https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09960-0db1-72cb-9b5c-762d2c695d03Tool “route” rewrote its description, which is the text the model reads. Compared against 2026-09-09.Sun, 13 Sep 2026 06:06:43 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “validate” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09960-0db2-74bd-9ef3-8b3eaafd6ff2https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a09960-0db2-74bd-9ef3-8b3eaafd6ff2Tool “validate” rewrote its description, which is the text the model reads. Compared against 2026-09-09.Sun, 13 Sep 2026 06:06:43 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Stability (0.33 → unverified)https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a089ee-1838-7856-b7b0-2db4943fcfc6https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a089ee-1838-7856-b7b0-2db4943fcfc6Stability (0.33 → unverified). Compared against 2026-09-09.Thu, 10 Sep 2026 06:07:57 GMTsecurityregressioncheck.unverifiable[SECURITY] 402signal: Tool safety (pass → unverified)https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a089ee-1839-76f8-b23a-d1dcafae4e8bhttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a089ee-1839-76f8-b23a-d1dcafae4e8bTool safety (pass → unverified). Compared against 2026-09-09.Thu, 10 Sep 2026 06:07:57 GMTsecurityregressioncheck.unverifiable[SECURITY] 402signal: Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a089ee-1839-7b5d-aa84-dcfd4cb0a01dhttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a089ee-1839-7b5d-aa84-dcfd4cb0a01dAuthorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.). Compared against 2026-09-09.Thu, 10 Sep 2026 06:07:57 GMTsecurityneutralcheck.reason[SECURITY] 402signal: Endpoint reachability (reachable → not serving MCP)https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a089ee-183a-7c3b-bc00-3701cd1b435dhttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a089ee-183a-7c3b-bc00-3701cd1b435dEndpoint reachability (reachable → not serving MCP). Compared against 2026-09-09.Thu, 10 Sep 2026 06:07:57 GMTsecurityregressioncapture.status_changed[SECURITY] 402signal: Tool “preview” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a07fa1-cae9-76af-89ff-ff7a2a2f43dahttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a07fa1-cae9-76af-89ff-ff7a2a2f43daTool “preview” rewrote its description, which is the text the model reads. Compared against 2026-09-07.Tue, 08 Sep 2026 06:08:24 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “route” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a07fa1-caea-7583-ab65-a95056b38840https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a07fa1-caea-7583-ab65-a95056b38840Tool “route” rewrote its description, which is the text the model reads. Compared against 2026-09-07.Tue, 08 Sep 2026 06:08:24 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “validate” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a07fa1-caea-7e6c-b467-f6d95842d895https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a07fa1-caea-7e6c-b467-f6d95842d895Tool “validate” rewrote its description, which is the text the model reads. Compared against 2026-09-07.Tue, 08 Sep 2026 06:08:24 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “route” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a07555-8264-735a-93a8-9a12a5bb69d7https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a07555-8264-735a-93a8-9a12a5bb69d7Tool “route” rewrote its description, which is the text the model reads. Compared against 2026-09-05.Sun, 06 Sep 2026 06:08:53 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “route” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a0702f-497e-791e-942f-7d67e43126cfhttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a0702f-497e-791e-942f-7d67e43126cfTool “route” rewrote its description, which is the text the model reads. Compared against 2026-09-04.Sat, 05 Sep 2026 06:09:01 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “route” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a060bb-b362-7e8f-bf0d-445f0e420a01https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a060bb-b362-7e8f-bf0d-445f0e420a01Tool “route” rewrote its description, which is the text the model reads. Compared against 2026-09-01.Wed, 02 Sep 2026 06:08:28 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “preview” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a05b95-4cf9-73b5-b0b3-fa27aafc9e7dhttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a05b95-4cf9-73b5-b0b3-fa27aafc9e7dTool “preview” rewrote its description, which is the text the model reads. Compared against 2026-08-31.Tue, 01 Sep 2026 06:08:26 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “route” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a05b95-4cf9-7a4c-81fe-9a97c7203559https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a05b95-4cf9-7a4c-81fe-9a97c7203559Tool “route” rewrote its description, which is the text the model reads. Compared against 2026-08-31.Tue, 01 Sep 2026 06:08:26 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “preview” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a0566e-c061-7872-ba34-993ed9d76a64https://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a0566e-c061-7872-ba34-993ed9d76a64Tool “preview” rewrote its description, which is the text the model reads. Compared against 2026-08-30.Mon, 31 Aug 2026 06:08:13 GMTsecurityneutraltool.description_changed[SECURITY] 402signal: Tool “route” rewrote its description, which is the text the model readshttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a0566e-c062-7ee7-b6e3-cb5a59ffe88chttps://verifymcp.io/servers/402signal-402signal/402signal#chg-chg_01a0566e-c062-7ee7-b6e3-cb5a59ffe88cTool “route” rewrote its description, which is the text the model reads. Compared against 2026-08-30.Mon, 31 Aug 2026 06:08:13 GMTsecurityneutraltool.description_changed