<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Mbta · mbta-mcp · 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/pipeworx-io-mbta/mbta-mcp.xml" rel="self" type="application/rss+xml"/><item><title>[SECURITY] mbta-mcp: Authorization (pass → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09da9-633f-7987-87c2-0681e425bd85</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09da9-633f-7987-87c2-0681e425bd85</guid><description>Authorization (pass → unverified). Compared against 2026-09-13.</description><pubDate>Mon, 14 Sep 2026 02:05:18 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] mbta-mcp: Stability (pass → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09da9-6340-75b7-9ca5-275ea4a6fa1d</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09da9-6340-75b7-9ca5-275ea4a6fa1d</guid><description>Stability (pass → fail). Compared against 2026-09-13.</description><pubDate>Mon, 14 Sep 2026 02:05:18 GMT</pubDate><category>security</category><category>regression</category><category>check.verdict</category></item><item><title>[SECURITY] mbta-mcp: Tool safety (pass → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09da9-6340-7b5b-85cd-e24b25db3428</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09da9-6340-7b5b-85cd-e24b25db3428</guid><description>Tool safety (pass → unverified). Compared against 2026-09-13.</description><pubDate>Mon, 14 Sep 2026 02:05:18 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09882-eddc-71ec-a0c1-8285f6aaa5fd</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09882-eddc-71ec-a0c1-8285f6aaa5fd</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-09-12.</description><pubDate>Sun, 13 Sep 2026 02:05:12 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09882-eddd-72ee-9076-ca79834bcefe</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09882-eddd-72ee-9076-ca79834bcefe</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-09-12.</description><pubDate>Sun, 13 Sep 2026 02:05:12 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09882-eddd-7987-a6eb-0fd9728c3a9a</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09882-eddd-7987-a6eb-0fd9728c3a9a</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-09-12.</description><pubDate>Sun, 13 Sep 2026 02:05:12 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09882-edde-70bb-9101-750f145ea939</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09882-edde-70bb-9101-750f145ea939</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-09-12.</description><pubDate>Sun, 13 Sep 2026 02:05:12 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09882-edde-77c3-aadb-204f6bdcb7c7</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a09882-edde-77c3-aadb-204f6bdcb7c7</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-09-12.</description><pubDate>Sun, 13 Sep 2026 02:05:12 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c416-78d6-b382-dae8945efa26</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c416-78d6-b382-dae8945efa26</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-09-11.</description><pubDate>Sat, 12 Sep 2026 02:05:25 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c418-7378-842b-32393c477cd9</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c418-7378-842b-32393c477cd9</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-09-11.</description><pubDate>Sat, 12 Sep 2026 02:05:25 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c418-7c24-bc1f-2de3a41506bd</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c418-7c24-bc1f-2de3a41506bd</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-09-11.</description><pubDate>Sat, 12 Sep 2026 02:05:25 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “bet_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c419-7289-9382-9150cc8f549e</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c419-7289-9382-9150cc8f549e</guid><description>Tool “bet_research” rewrote its description, which is the text the model reads. Compared against 2026-09-11.</description><pubDate>Sat, 12 Sep 2026 02:05:25 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c41a-7120-93f2-91f55c16fe7a</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c41a-7120-93f2-91f55c16fe7a</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-09-11.</description><pubDate>Sat, 12 Sep 2026 02:05:25 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c41a-77d3-acc5-f83ef6df4e9a</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c41a-77d3-acc5-f83ef6df4e9a</guid><description>Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads. Compared against 2026-09-11.</description><pubDate>Sat, 12 Sep 2026 02:05:25 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c41b-743a-902e-ee5a7c1f48b5</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a0935c-c41b-743a-902e-ee5a7c1f48b5</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-09-11.</description><pubDate>Sat, 12 Sep 2026 02:05:25 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] mbta-mcp: Authorization (fail → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b51-7e19-aef8-3f04a09c8f99</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b51-7e19-aef8-3f04a09c8f99</guid><description>Authorization (fail → pass). Compared against 2026-09-10.</description><pubDate>Fri, 11 Sep 2026 02:05:38 GMT</pubDate><category>security</category><category>improvement</category><category>check.verdict</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b53-714f-8c82-e8c8055cd444</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b53-714f-8c82-e8c8055cd444</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-09-10.</description><pubDate>Fri, 11 Sep 2026 02:05:38 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b53-76e8-a9de-9ca7862cc330</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b53-76e8-a9de-9ca7862cc330</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-09-10.</description><pubDate>Fri, 11 Sep 2026 02:05:38 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b53-7b84-ae59-622d014eb5d6</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b53-7b84-ae59-622d014eb5d6</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-09-10.</description><pubDate>Fri, 11 Sep 2026 02:05:38 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b55-707e-ad24-7cbe43af63bf</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b55-707e-ad24-7cbe43af63bf</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-09-10.</description><pubDate>Fri, 11 Sep 2026 02:05:38 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b56-782a-b3d6-a4603e58f245</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08e36-9b56-782a-b3d6-a4603e58f245</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-09-10.</description><pubDate>Fri, 11 Sep 2026 02:05:38 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[CRITICAL] mbta-mcp: Authorization (unverified → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08911-2c46-7ccd-b0ad-b55e00c79185</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08911-2c46-7ccd-b0ad-b55e00c79185</guid><description>Authorization (unverified → fail). Compared against 2026-09-09.</description><pubDate>Thu, 10 Sep 2026 02:06:39 GMT</pubDate><category>critical</category><category>regression</category><category>check.reverified</category></item><item><title>[SECURITY] mbta-mcp: Injection markers (unverified → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08911-2c47-7a4b-a169-3ae5dc999712</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08911-2c47-7a4b-a169-3ae5dc999712</guid><description>Injection markers (unverified → pass). Compared against 2026-09-09.</description><pubDate>Thu, 10 Sep 2026 02:06:39 GMT</pubDate><category>security</category><category>improvement</category><category>check.reverified</category></item><item><title>[SECURITY] mbta-mcp: Stability (fail → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08911-2c48-7199-870d-ea9f6e430c7d</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a08911-2c48-7199-870d-ea9f6e430c7d</guid><description>Stability (fail → pass). Compared against 2026-09-09.</description><pubDate>Thu, 10 Sep 2026 02:06:39 GMT</pubDate><category>security</category><category>improvement</category><category>check.verdict</category></item><item><title>[SECURITY] mbta-mcp: Stability (unverified → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a083eb-dd3a-7f01-b423-caac951094bc</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a083eb-dd3a-7f01-b423-caac951094bc</guid><description>Stability (unverified → fail). Compared against 2026-09-08.</description><pubDate>Wed, 09 Sep 2026 02:07:47 GMT</pubDate><category>security</category><category>regression</category><category>check.reverified</category></item><item><title>[SECURITY] mbta-mcp: Stability (pass → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07ec9-240e-730b-845b-70e5e8c7a932</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07ec9-240e-730b-845b-70e5e8c7a932</guid><description>Stability (pass → unverified). Compared against 2026-09-07.</description><pubDate>Tue, 08 Sep 2026 02:11:46 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] mbta-mcp: Authorization (fail → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07ec9-240f-7c60-97af-181ff72c10c2</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07ec9-240f-7c60-97af-181ff72c10c2</guid><description>Authorization (fail → unverified). Compared against 2026-09-07.</description><pubDate>Tue, 08 Sep 2026 02:11:46 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] mbta-mcp: Tool safety (pass → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07ec9-2412-7e98-8d4e-1f8f58f7d09e</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07ec9-2412-7e98-8d4e-1f8f58f7d09e</guid><description>Tool safety (pass → unverified). Compared against 2026-09-07.</description><pubDate>Tue, 08 Sep 2026 02:11:46 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] mbta-mcp: Endpoint reachability (reachable → unreachable)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07ec9-241a-7e05-a983-dad8f6b672b0</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07ec9-241a-7e05-a983-dad8f6b672b0</guid><description>Endpoint reachability (reachable → unreachable). Compared against 2026-09-07.</description><pubDate>Tue, 08 Sep 2026 02:11:46 GMT</pubDate><category>security</category><category>regression</category><category>capture.status_changed</category></item><item><title>[CRITICAL] mbta-mcp: Authorization (unverified → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07478-15ba-70aa-9f68-c3d906493451</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07478-15ba-70aa-9f68-c3d906493451</guid><description>Authorization (unverified → fail). Compared against 2026-09-05.</description><pubDate>Sun, 06 Sep 2026 02:07:01 GMT</pubDate><category>critical</category><category>regression</category><category>check.reverified</category></item><item><title>[SECURITY] mbta-mcp: Injection markers (unverified → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07478-15bc-7eef-9910-a13aa5199e35</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07478-15bc-7eef-9910-a13aa5199e35</guid><description>Injection markers (unverified → pass). Compared against 2026-09-05.</description><pubDate>Sun, 06 Sep 2026 02:07:01 GMT</pubDate><category>security</category><category>improvement</category><category>check.reverified</category></item><item><title>[SECURITY] mbta-mcp: Stability (fail → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07478-15bd-778b-9618-b8f4a2230a82</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a07478-15bd-778b-9618-b8f4a2230a82</guid><description>Stability (fail → pass). Compared against 2026-09-05.</description><pubDate>Sun, 06 Sep 2026 02:07:01 GMT</pubDate><category>security</category><category>improvement</category><category>check.verdict</category></item><item><title>[SECURITY] mbta-mcp: Stability (pass → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06f51-c5a2-75ec-a0f2-8e7458e9ece3</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06f51-c5a2-75ec-a0f2-8e7458e9ece3</guid><description>Stability (pass → fail). Compared against 2026-09-04.</description><pubDate>Sat, 05 Sep 2026 02:07:05 GMT</pubDate><category>security</category><category>regression</category><category>check.verdict</category></item><item><title>[SECURITY] mbta-mcp: Authorization (fail → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06f51-c5a3-7494-82b0-1c2553d8168e</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06f51-c5a3-7494-82b0-1c2553d8168e</guid><description>Authorization (fail → unverified). Compared against 2026-09-04.</description><pubDate>Sat, 05 Sep 2026 02:07:05 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] mbta-mcp: Tool safety (pass → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06f51-c5a3-7ae9-8ef7-8692feb89601</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06f51-c5a3-7ae9-8ef7-8692feb89601</guid><description>Tool safety (pass → unverified). Compared against 2026-09-04.</description><pubDate>Sat, 05 Sep 2026 02:07:05 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[CRITICAL] mbta-mcp: Authorization (pass → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c6-7be5-9c14-6fe0a962accd</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c6-7be5-9c14-6fe0a962accd</guid><description>Authorization (pass → fail). Compared against 2026-09-03.</description><pubDate>Fri, 04 Sep 2026 02:06:34 GMT</pubDate><category>critical</category><category>regression</category><category>check.verdict</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c7-799a-b3b7-93a66182ec39</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c7-799a-b3b7-93a66182ec39</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-09-03.</description><pubDate>Fri, 04 Sep 2026 02:06:34 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c7-7ec4-908e-646f8b9ebce7</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c7-7ec4-908e-646f8b9ebce7</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-09-03.</description><pubDate>Fri, 04 Sep 2026 02:06:34 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c8-74dc-a1c3-5ed81e020df5</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c8-74dc-a1c3-5ed81e020df5</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-09-03.</description><pubDate>Fri, 04 Sep 2026 02:06:34 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c8-7abf-b274-2ae39ac1f47b</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c8-7abf-b274-2ae39ac1f47b</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-09-03.</description><pubDate>Fri, 04 Sep 2026 02:06:34 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “entity_profile” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c9-7100-a3e0-355bd0671e98</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2c9-7100-a3e0-355bd0671e98</guid><description>Tool “entity_profile” rewrote its description, which is the text the model reads. Compared against 2026-09-03.</description><pubDate>Fri, 04 Sep 2026 02:06:34 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2ca-70a7-8d5d-89c7075cfe61</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06a2a-f2ca-70a7-8d5d-89c7075cfe61</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-09-03.</description><pubDate>Fri, 04 Sep 2026 02:06:34 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] mbta-mcp: Authorization (fail → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4457-7607-8ea3-5f47cd2fcbd9</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4457-7607-8ea3-5f47cd2fcbd9</guid><description>Authorization (fail → pass). Compared against 2026-09-02.</description><pubDate>Thu, 03 Sep 2026 02:06:13 GMT</pubDate><category>security</category><category>improvement</category><category>check.verdict</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4458-717a-bba9-fed9b3e36a16</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4458-717a-bba9-fed9b3e36a16</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-09-02.</description><pubDate>Thu, 03 Sep 2026 02:06:13 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4458-7860-b521-25b2a7dfa6da</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4458-7860-b521-25b2a7dfa6da</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-09-02.</description><pubDate>Thu, 03 Sep 2026 02:06:13 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4459-709b-8a63-7fae61fb81e3</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4459-709b-8a63-7fae61fb81e3</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-09-02.</description><pubDate>Thu, 03 Sep 2026 02:06:13 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4459-75bc-87aa-af8b0620b633</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4459-75bc-87aa-af8b0620b633</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-09-02.</description><pubDate>Thu, 03 Sep 2026 02:06:13 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4459-7aa8-aad9-5d6103e0069a</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-4459-7aa8-aad9-5d6103e0069a</guid><description>Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads. Compared against 2026-09-02.</description><pubDate>Thu, 03 Sep 2026 02:06:13 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] mbta-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-445a-7117-b176-47c7dfa56844</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a06504-445a-7117-b176-47c7dfa56844</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-09-02.</description><pubDate>Thu, 03 Sep 2026 02:06:13 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] mbta-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a05fdd-74a3-760a-b8c5-fccfdfe420b1</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-mbta/mbta-mcp#chg-chg_01a05fdd-74a3-760a-b8c5-fccfdfe420b1</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-09-01.</description><pubDate>Wed, 02 Sep 2026 02:05:43 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item></channel></rss>