<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Postmark · postmark-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-postmark/postmark-mcp/changelog.xml" rel="self" type="application/rss+xml"/><item><title>[CRITICAL] postmark-mcp: Authorization (unverified → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6335-72a0-bfad-5a4c36a1413c</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6335-72a0-bfad-5a4c36a1413c</guid><description>Authorization (unverified → fail). Compared against 2026-08-03.</description><pubDate>Tue, 04 Aug 2026 01:03:51 GMT</pubDate><category>critical</category><category>regression</category><category>check.reverified</category></item><item><title>[SECURITY] postmark-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6337-7e87-a0d0-790f4b6f297c</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6337-7e87-a0d0-790f4b6f297c</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-08-03.</description><pubDate>Tue, 04 Aug 2026 01:03:51 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6337-780b-a1dc-f8f9ea9aaee4</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6337-780b-a1dc-f8f9ea9aaee4</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-08-03.</description><pubDate>Tue, 04 Aug 2026 01:03:51 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6336-7cc3-80c3-b79136aaebf5</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6336-7cc3-80c3-b79136aaebf5</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-08-03.</description><pubDate>Tue, 04 Aug 2026 01:03:51 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6336-7824-86fb-497a107caeb5</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6336-7824-86fb-497a107caeb5</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-08-03.</description><pubDate>Tue, 04 Aug 2026 01:03:51 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6336-7234-b47b-84d9c1ab5129</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fca4c-6336-7234-b47b-84d9c1ab5129</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-08-03.</description><pubDate>Tue, 04 Aug 2026 01:03:51 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc528-5eff-7c66-bf93-3f610b242980</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc528-5eff-7c66-bf93-3f610b242980</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-08-02.</description><pubDate>Mon, 03 Aug 2026 01:06:25 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc528-5f01-7ad8-8f11-25af0640798f</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc528-5f01-7ad8-8f11-25af0640798f</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-08-02.</description><pubDate>Mon, 03 Aug 2026 01:06:25 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc528-5f01-75bc-9977-32811c238eaf</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc528-5f01-75bc-9977-32811c238eaf</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-08-02.</description><pubDate>Mon, 03 Aug 2026 01:06:25 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc528-5f00-77cf-8291-d43f74933510</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc528-5f00-77cf-8291-d43f74933510</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-08-02.</description><pubDate>Mon, 03 Aug 2026 01:06:25 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc528-5efe-77c1-a96b-2c226fd4c851</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc528-5efe-77c1-a96b-2c226fd4c851</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-08-02.</description><pubDate>Mon, 03 Aug 2026 01:06:25 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc001-6711-7bdc-a086-743ab3a6f70c</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc001-6711-7bdc-a086-743ab3a6f70c</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-08-01.</description><pubDate>Sun, 02 Aug 2026 01:05:45 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc001-6713-71d2-9312-b6455a7ad4a5</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc001-6713-71d2-9312-b6455a7ad4a5</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-08-01.</description><pubDate>Sun, 02 Aug 2026 01:05:45 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc001-6712-7b42-b27a-209d15aa9ab1</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc001-6712-7b42-b27a-209d15aa9ab1</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-08-01.</description><pubDate>Sun, 02 Aug 2026 01:05:45 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc001-6712-733d-8453-fae4754b91ca</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc001-6712-733d-8453-fae4754b91ca</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-08-01.</description><pubDate>Sun, 02 Aug 2026 01:05:45 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc001-6711-74ed-8b2a-95e211d81106</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fc001-6711-74ed-8b2a-95e211d81106</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-08-01.</description><pubDate>Sun, 02 Aug 2026 01:05:45 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fbada-7690-7745-b3f3-aaa8275e6d47</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fbada-7690-7745-b3f3-aaa8275e6d47</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-07-31.</description><pubDate>Sat, 01 Aug 2026 01:05:07 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fbada-7691-70df-b8bd-eac8977a0528</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fbada-7691-70df-b8bd-eac8977a0528</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-07-31.</description><pubDate>Sat, 01 Aug 2026 01:05:07 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fbada-7691-75d4-8df3-67d3aab8aecf</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fbada-7691-75d4-8df3-67d3aab8aecf</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-07-31.</description><pubDate>Sat, 01 Aug 2026 01:05:07 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fbada-7691-7a9a-a234-133a9267ac06</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fbada-7691-7a9a-a234-133a9267ac06</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-07-31.</description><pubDate>Sat, 01 Aug 2026 01:05:07 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fbada-7692-701c-bf62-cd2dc27a0970</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fbada-7692-701c-bf62-cd2dc27a0970</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-07-31.</description><pubDate>Sat, 01 Aug 2026 01:05:07 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] postmark-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7cb-7cd4-b1f9-447b359b3dc5</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7cb-7cd4-b1f9-447b359b3dc5</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-07-29.</description><pubDate>Thu, 30 Jul 2026 15:10:34 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7cb-78b6-a08e-ce1b1f4063d1</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7cb-78b6-a08e-ce1b1f4063d1</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-07-29.</description><pubDate>Thu, 30 Jul 2026 15:10:34 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7cb-74fb-92b0-3133254fa550</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7cb-74fb-92b0-3133254fa550</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-07-29.</description><pubDate>Thu, 30 Jul 2026 15:10:34 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7ca-7af7-8168-0a18b898e8fb</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7ca-7af7-8168-0a18b898e8fb</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-07-29.</description><pubDate>Thu, 30 Jul 2026 15:10:34 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[CRITICAL] postmark-mcp: Authorization (unverified → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7c9-7a37-a2b4-e2852e05afa5</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7c9-7a37-a2b4-e2852e05afa5</guid><description>Authorization (unverified → fail). Compared against 2026-07-29.</description><pubDate>Thu, 30 Jul 2026 15:10:34 GMT</pubDate><category>critical</category><category>regression</category><category>check.reverified</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7ca-760b-9a21-98f8c3e10ef5</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fb393-c7ca-760b-9a21-98f8c3e10ef5</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-07-29.</description><pubDate>Thu, 30 Jul 2026 15:10:34 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b8-79a7-82de-1cabc6bb6c75</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b8-79a7-82de-1cabc6bb6c75</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-07-28.</description><pubDate>Wed, 29 Jul 2026 14:38:18 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b9-7307-83ae-11ef8d477e90</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b9-7307-83ae-11ef8d477e90</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-07-28.</description><pubDate>Wed, 29 Jul 2026 14:38:18 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b8-7e6a-9ca7-771391db8df1</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b8-7e6a-9ca7-771391db8df1</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-07-28.</description><pubDate>Wed, 29 Jul 2026 14:38:18 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b8-751a-b027-b3c68933c571</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b8-751a-b027-b3c68933c571</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-07-28.</description><pubDate>Wed, 29 Jul 2026 14:38:18 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b8-702f-ba0f-dd4e2fed4177</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b8-702f-ba0f-dd4e2fed4177</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-07-28.</description><pubDate>Wed, 29 Jul 2026 14:38:18 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Authorization (fail → unverified)</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b7-78d5-80a1-2d732465f22a</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fae4f-e2b7-78d5-80a1-2d732465f22a</guid><description>Authorization (fail → unverified). Compared against 2026-07-28.</description><pubDate>Wed, 29 Jul 2026 14:38:18 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de22-7510-a1e7-3bdfef252983</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de22-7510-a1e7-3bdfef252983</guid><description>Tool “ask_pipeworx” rewrote its description, which is the text the model reads. Compared against 2026-07-27.</description><pubDate>Tue, 28 Jul 2026 16:16:59 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: The server rewrote its instructions, which are the text every model session reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de23-79e2-ba7f-f445f83e6c4b</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de23-79e2-ba7f-f445f83e6c4b</guid><description>The server rewrote its instructions, which are the text every model session reads. Compared against 2026-07-27.</description><pubDate>Tue, 28 Jul 2026 16:16:59 GMT</pubDate><category>security</category><category>neutral</category><category>server.instructions_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “deep_research” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de23-7261-b8af-82d09260e457</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de23-7261-b8af-82d09260e457</guid><description>Tool “deep_research” rewrote its description, which is the text the model reads. Compared against 2026-07-27.</description><pubDate>Tue, 28 Jul 2026 16:16:59 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de22-7d24-8b40-e59599ec22b5</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de22-7d24-8b40-e59599ec22b5</guid><description>Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads. Compared against 2026-07-27.</description><pubDate>Tue, 28 Jul 2026 16:16:59 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[CRITICAL] postmark-mcp: Authorization (unverified → fail)</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de21-7e9b-a959-c902867b1dde</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de21-7e9b-a959-c902867b1dde</guid><description>Authorization (unverified → fail). Compared against 2026-07-27.</description><pubDate>Tue, 28 Jul 2026 16:16:59 GMT</pubDate><category>critical</category><category>regression</category><category>check.reverified</category></item><item><title>[SECURITY] postmark-mcp: Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de22-789c-9c56-3ef6ccd49de6</link><guid isPermaLink="true">https://verifymcp.io/servers/pipeworx-io-postmark/postmark-mcp#chg-chg_019fa983-de22-789c-9c56-3ef6ccd49de6</guid><description>Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads. Compared against 2026-07-27.</description><pubDate>Tue, 28 Jul 2026 16:16:59 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item></channel></rss>