<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Polygon Io · polygon-io-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-polygon-io/polygon-io-mcp.xml" rel="self" type="application/rss+xml"/><item><title>[SECURITY] polygon-io-mcp: Authorization (pass → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a09e18-1a9d-71ec-8406-30fae3142a40</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a09e18-1a9d-71ec-8406-30fae3142a40</guid><description>Authorization (pass → unverified). Compared against 2026-09-13.</description><pubDate>Mon, 14 Sep 2026 04:06:14 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] polygon-io-mcp: Stability (pass → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a09e18-1a9e-7612-a08b-2862bd7cba4c</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a09e18-1a9e-7612-a08b-2862bd7cba4c</guid><description>Stability (pass → fail). Compared against 2026-09-13.</description><pubDate>Mon, 14 Sep 2026 04:06:14 GMT</pubDate><category>security</category><category>regression</category><category>check.verdict</category></item><item><title>[SECURITY] polygon-io-mcp: Tool safety (pass → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a09e18-1a9e-7b77-a2e3-3a53b6cdd555</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a09e18-1a9e-7b77-a2e3-3a53b6cdd555</guid><description>Tool safety (pass → unverified). Compared against 2026-09-13.</description><pubDate>Mon, 14 Sep 2026 04:06:14 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] polygon-io-mcp: Authorization (unverified → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a098f1-4e00-7a5c-9412-f12ca9a0b056</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a098f1-4e00-7a5c-9412-f12ca9a0b056</guid><description>Authorization (unverified → pass). Compared against 2026-09-12.</description><pubDate>Sun, 13 Sep 2026 04:05:45 GMT</pubDate><category>security</category><category>improvement</category><category>check.reverified</category></item><item><title>[SECURITY] polygon-io-mcp: Injection markers (unverified → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a098f1-4e01-7bf0-b5f4-7cb887bb1633</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a098f1-4e01-7bf0-b5f4-7cb887bb1633</guid><description>Injection markers (unverified → pass). Compared against 2026-09-12.</description><pubDate>Sun, 13 Sep 2026 04:05:45 GMT</pubDate><category>security</category><category>improvement</category><category>check.reverified</category></item><item><title>[SECURITY] polygon-io-mcp: Stability (fail → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a098f1-4e02-7283-9102-2a7d3807fc18</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a098f1-4e02-7283-9102-2a7d3807fc18</guid><description>Stability (fail → pass). Compared against 2026-09-12.</description><pubDate>Sun, 13 Sep 2026 04:05:45 GMT</pubDate><category>security</category><category>improvement</category><category>check.verdict</category></item><item><title>[SECURITY] polygon-io-mcp: Authorization (pass → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a093cb-8353-74b1-8c19-261c8ce6a314</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a093cb-8353-74b1-8c19-261c8ce6a314</guid><description>Authorization (pass → unverified). Compared against 2026-09-11.</description><pubDate>Sat, 12 Sep 2026 04:06:23 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] polygon-io-mcp: Stability (pass → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a093cb-8355-7a4b-9f00-c8ac58dff41c</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a093cb-8355-7a4b-9f00-c8ac58dff41c</guid><description>Stability (pass → fail). Compared against 2026-09-11.</description><pubDate>Sat, 12 Sep 2026 04:06:23 GMT</pubDate><category>security</category><category>regression</category><category>check.verdict</category></item><item><title>[SECURITY] polygon-io-mcp: Tool safety (pass → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a093cb-8356-7b05-92ad-e1ea10ea101c</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a093cb-8356-7b05-92ad-e1ea10ea101c</guid><description>Tool safety (pass → unverified). Compared against 2026-09-11.</description><pubDate>Sat, 12 Sep 2026 04:06:23 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08ea5-5571-79eb-b35e-5ea4341e1b74</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08ea5-5571-79eb-b35e-5ea4341e1b74</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 04:06:35 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08ea5-5572-7960-b2c5-8a8d3b7f5865</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08ea5-5572-7960-b2c5-8a8d3b7f5865</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 04:06:35 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08ea5-5572-7f1d-bae1-e52d827cbf09</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08ea5-5572-7f1d-bae1-e52d827cbf09</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 04:06:35 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08ea5-5573-756a-8864-e7ec1527a942</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08ea5-5573-756a-8864-e7ec1527a942</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 04:06:35 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08ea5-5573-79d2-b20f-e73082d02749</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08ea5-5573-79d2-b20f-e73082d02749</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 04:06:35 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0897f-715c-79c6-a628-810dec14d22c</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0897f-715c-79c6-a628-810dec14d22c</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-09-09.</description><pubDate>Thu, 10 Sep 2026 04:07:05 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0897f-715d-776e-96fe-af9f70fcb38f</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0897f-715d-776e-96fe-af9f70fcb38f</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-09-09.</description><pubDate>Thu, 10 Sep 2026 04:07:05 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0897f-715d-7b65-9e23-081704b81d7c</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0897f-715d-7b65-9e23-081704b81d7c</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-09-09.</description><pubDate>Thu, 10 Sep 2026 04:07:05 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0897f-715e-703c-b623-4bba6c501e6e</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0897f-715e-703c-b623-4bba6c501e6e</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-09-09.</description><pubDate>Thu, 10 Sep 2026 04:07:05 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0897f-715e-7470-8fae-1baf0aa3949f</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0897f-715e-7470-8fae-1baf0aa3949f</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-09-09.</description><pubDate>Thu, 10 Sep 2026 04:07:05 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Authorization (unverified → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08459-fbae-7e84-b6ed-3e2662357bd8</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a08459-fbae-7e84-b6ed-3e2662357bd8</guid><description>Authorization (unverified → pass). Compared against 2026-09-08.</description><pubDate>Wed, 09 Sep 2026 04:08:04 GMT</pubDate><category>security</category><category>improvement</category><category>check.reverified</category></item><item><title>[SECURITY] polygon-io-mcp: Injection markers (unverified → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a07f37-0821-7ca2-a2ad-bbc647a57719</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a07f37-0821-7ca2-a2ad-bbc647a57719</guid><description>Injection markers (unverified → pass). Compared against 2026-09-07.</description><pubDate>Tue, 08 Sep 2026 04:11:47 GMT</pubDate><category>security</category><category>improvement</category><category>check.reverified</category></item><item><title>[SECURITY] polygon-io-mcp: Stability (unverified → pass)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a07f37-0824-756e-907c-01a64cd8be85</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a07f37-0824-756e-907c-01a64cd8be85</guid><description>Stability (unverified → pass). Compared against 2026-09-07.</description><pubDate>Tue, 08 Sep 2026 04:11:47 GMT</pubDate><category>security</category><category>improvement</category><category>check.reverified</category></item><item><title>[SECURITY] polygon-io-mcp: Authorization (Authorisation not fully verified: this server exposes a tool marked destructive (forget) and its handshake is open, but we could not confirm whether a tool call is gated, so we do not assert it is callable unauthenticated.)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a07f37-0824-7b7f-8d2c-fddc89b58881</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a07f37-0824-7b7f-8d2c-fddc89b58881</guid><description>Authorization (Authorisation not fully verified: this server exposes a tool marked destructive (forget) and its handshake is open, but we could not confirm whether a tool call is gated, so we do not assert it is callable unauthenticated.). Compared against 2026-09-07.</description><pubDate>Tue, 08 Sep 2026 04:11:47 GMT</pubDate><category>security</category><category>neutral</category><category>check.reason</category></item><item><title>[SECURITY] polygon-io-mcp: Stability (fail → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a07a0f-5ed0-7226-9738-7452efd513e4</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a07a0f-5ed0-7226-9738-7452efd513e4</guid><description>Stability (fail → unverified). Compared against 2026-09-06.</description><pubDate>Mon, 07 Sep 2026 04:10:22 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] polygon-io-mcp: Endpoint reachability (reachable → unreachable)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a07a0f-5ed5-7d61-bc05-e8f00b9fccbe</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a07a0f-5ed5-7d61-bc05-e8f00b9fccbe</guid><description>Endpoint reachability (reachable → unreachable). Compared against 2026-09-06.</description><pubDate>Mon, 07 Sep 2026 04:10:22 GMT</pubDate><category>security</category><category>regression</category><category>capture.status_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Stability (pass → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a074e6-67c1-72b5-b751-af08798f6630</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a074e6-67c1-72b5-b751-af08798f6630</guid><description>Stability (pass → fail). Compared against 2026-09-05.</description><pubDate>Sun, 06 Sep 2026 04:07:31 GMT</pubDate><category>security</category><category>regression</category><category>check.verdict</category></item><item><title>[SECURITY] polygon-io-mcp: Authorization (fail → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a074e6-67c2-728d-bab5-df099e0dfc14</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a074e6-67c2-728d-bab5-df099e0dfc14</guid><description>Authorization (fail → unverified). Compared against 2026-09-05.</description><pubDate>Sun, 06 Sep 2026 04:07:31 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] polygon-io-mcp: Tool safety (pass → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a074e6-67c2-77fa-9ca4-0b71c37d8205</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a074e6-67c2-77fa-9ca4-0b71c37d8205</guid><description>Tool safety (pass → unverified). Compared against 2026-09-05.</description><pubDate>Sun, 06 Sep 2026 04:07:31 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06fc0-6b47-7c9b-8508-834d88d0b75d</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06fc0-6b47-7c9b-8508-834d88d0b75d</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-09-04.</description><pubDate>Sat, 05 Sep 2026 04:07:56 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06fc0-6b48-7b2b-a18a-01e7dfc26129</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06fc0-6b48-7b2b-a18a-01e7dfc26129</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-09-04.</description><pubDate>Sat, 05 Sep 2026 04:07:56 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06fc0-6b48-7f2d-9cf1-ae8c196a6a7c</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06fc0-6b48-7f2d-9cf1-ae8c196a6a7c</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-09-04.</description><pubDate>Sat, 05 Sep 2026 04:07:56 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06fc0-6b49-752c-bd41-fe00e2268dcb</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06fc0-6b49-752c-bd41-fe00e2268dcb</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-09-04.</description><pubDate>Sat, 05 Sep 2026 04:07:56 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06fc0-6b49-79f3-b88b-3960eb15dadd</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06fc0-6b49-79f3-b88b-3960eb15dadd</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-09-04.</description><pubDate>Sat, 05 Sep 2026 04:07:56 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[CRITICAL] polygon-io-mcp: Authorization (pass → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71c-7e41-97ad-b0294fad4fa2</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71c-7e41-97ad-b0294fad4fa2</guid><description>Authorization (pass → fail). Compared against 2026-09-03.</description><pubDate>Fri, 04 Sep 2026 04:07:37 GMT</pubDate><category>critical</category><category>regression</category><category>check.verdict</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71e-7169-8fdd-511cc002f2ed</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71e-7169-8fdd-511cc002f2ed</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 04:07:37 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71e-78af-ac9e-4b0f25d678ce</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71e-78af-ac9e-4b0f25d678ce</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 04:07:37 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71e-7d7b-b3ed-5e9274f2baaa</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71e-7d7b-b3ed-5e9274f2baaa</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 04:07:37 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71f-724a-b58f-22d74868fb46</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71f-724a-b58f-22d74868fb46</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 04:07:37 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “entity_profile” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71f-77bc-bab2-e82f6c0f70c4</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c71f-77bc-bab2-e82f6c0f70c4</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 04:07:37 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c720-753d-9bcf-6b50cf1184e2</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06a99-c720-753d-9bcf-6b50cf1184e2</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 04:07:37 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b07-75a0-ac12-26144c648b30</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b07-75a0-ac12-26144c648b30</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 04:07:41 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b08-79d4-a9c6-8422c9233bcc</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b08-79d4-a9c6-8422c9233bcc</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 04:07:41 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b09-71ed-9910-6dd4b796016b</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b09-71ed-9910-6dd4b796016b</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 04:07:41 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b09-7792-b9b4-4ff868ba1817</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b09-7792-b9b4-4ff868ba1817</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 04:07:41 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b09-7ce1-b17d-de4f24ebeed1</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b09-7ce1-b17d-de4f24ebeed1</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 04:07:41 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b0a-7230-9756-23023f32eaad</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a06573-7b0a-7230-9756-23023f32eaad</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 04:07:41 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0604c-bd54-79ac-91d9-c13a86986ddd</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0604c-bd54-79ac-91d9-c13a86986ddd</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 04:07:16 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0604c-bd55-7b9d-8380-aa0f3aa1e184</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0604c-bd55-7b9d-8380-aa0f3aa1e184</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-09-01.</description><pubDate>Wed, 02 Sep 2026 04:07:16 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0604c-bd56-715a-b25e-95fc77aa5fb6</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0604c-bd56-715a-b25e-95fc77aa5fb6</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-09-01.</description><pubDate>Wed, 02 Sep 2026 04:07:16 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] polygon-io-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0604c-bd56-76d4-abb9-7e92dc48e367</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-polygon-io/polygon-io-mcp#chg-chg_01a0604c-bd56-76d4-abb9-7e92dc48e367</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-09-01.</description><pubDate>Wed, 02 Sep 2026 04:07:16 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item></channel></rss>