From 24a62db218999684725d5e9cdea26fef8aad7daf Mon Sep 17 00:00:00 2001
From: Kevin Holland <kholland@centrixiq.com>
Date: Fri, 12 Jun 2026 19:03:14 -0400
Subject: [PATCH] Add xpntl connector (external plugin)
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xpntl is the coordination layer for human + AI engineering teams — a
source-available issue tracker with a full MCP surface so agents can read
and create issues, comment and @-mention, move work across workflow
states and cycles, and manage projects, labels, and docs.

Third-party plugin under external_plugins/xpntl:
- .mcp.json — remote MCP server at https://api.xpntl.dev/mcp (Streamable
  HTTP). Connects over OAuth 2.1 (no key needed); harness keys also
  supported for headless use.
- .grok-plugin/plugin.json — manifest + brand logo
- catalog entry in .grok-plugin/marketplace.json (local source)
- regenerated .grok-plugin/plugin-index.json

Validated locally: validate-catalog.py and generate-plugin-index.py
--check both pass.
---
 .grok-plugin/marketplace.json                   | 12 ++++++++++++
 .grok-plugin/plugin-index.json                  | 10 ++++++++++
 external_plugins/xpntl/.grok-plugin/plugin.json | 14 ++++++++++++++
 external_plugins/xpntl/.mcp.json                |  8 ++++++++
 external_plugins/xpntl/assets/logo.svg          |  6 ++++++
 5 files changed, 50 insertions(+)
 create mode 100644 external_plugins/xpntl/.grok-plugin/plugin.json
 create mode 100644 external_plugins/xpntl/.mcp.json
 create mode 100644 external_plugins/xpntl/assets/logo.svg

diff --git a/.grok-plugin/marketplace.json b/.grok-plugin/marketplace.json
index d1ed598..6c11ec4 100644
--- a/.grok-plugin/marketplace.json
+++ b/.grok-plugin/marketplace.json
@@ -92,6 +92,18 @@
       "homepage": "https://neon.com",
       "keywords": ["neon", "neon postgres", "neon database", "neon branch"],
       "domains": ["neon.tech", "neon.com", "console.neon.tech"]
+    },
+    {
+      "name": "xpntl",
+      "description": "xpntl — the coordination layer for human + AI engineering teams. Read and create issues, comment and @-mention, move work across workflow states and cycles, manage projects, labels, and workspace docs, and check your agent inbox. Connects over OAuth (no key needed).",
+      "category": "development",
+      "source": {
+        "type": "local",
+        "path": "./external_plugins/xpntl"
+      },
+      "homepage": "https://xpntl.dev",
+      "keywords": ["xpntl", "issue tracker", "project management", "kanban", "agent board"],
+      "domains": ["xpntl.dev", "app.xpntl.dev"]
     }
   ]
 }
diff --git a/.grok-plugin/plugin-index.json b/.grok-plugin/plugin-index.json
index e833abc..34dd198 100644
--- a/.grok-plugin/plugin-index.json
+++ b/.grok-plugin/plugin-index.json
@@ -547,6 +547,16 @@
           }
         ]
       }
+    },
+    "xpntl": {
+      "components": {
+        "mcpServers": [
+          {
+            "name": "xpntl",
+            "description": "http"
+          }
+        ]
+      }
     }
   }
 }
diff --git a/external_plugins/xpntl/.grok-plugin/plugin.json b/external_plugins/xpntl/.grok-plugin/plugin.json
new file mode 100644
index 0000000..a2c9c42
--- /dev/null
+++ b/external_plugins/xpntl/.grok-plugin/plugin.json
@@ -0,0 +1,14 @@
+{
+  "name": "xpntl",
+  "version": "1.0.0",
+  "description": "Connect Grok to xpntl — the coordination layer for human + AI engineering teams. Read and create issues, comment and @-mention, move work across workflow states and cycles, manage projects, labels, and workspace docs, and check your agent inbox.",
+  "author": {
+    "name": "xpntl",
+    "url": "https://xpntl.dev"
+  },
+  "homepage": "https://xpntl.dev",
+  "repository": "https://github.com/xpntl/xpntl",
+  "license": "BSL-1.1",
+  "keywords": ["xpntl", "issue tracker", "project management", "mcp", "agents", "kanban"],
+  "logo": "assets/logo.svg"
+}
diff --git a/external_plugins/xpntl/.mcp.json b/external_plugins/xpntl/.mcp.json
new file mode 100644
index 0000000..3c948f5
--- /dev/null
+++ b/external_plugins/xpntl/.mcp.json
@@ -0,0 +1,8 @@
+{
+  "mcpServers": {
+    "xpntl": {
+      "type": "http",
+      "url": "https://api.xpntl.dev/mcp"
+    }
+  }
+}
diff --git a/external_plugins/xpntl/assets/logo.svg b/external_plugins/xpntl/assets/logo.svg
new file mode 100644
index 0000000..1115081
--- /dev/null
+++ b/external_plugins/xpntl/assets/logo.svg
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="64" height="64" fill="none">
+  <rect width="16" height="16" rx="0.6" ry="0.6" fill="#F3CB00"></rect>
+  <path d="M 3 12 L 13.3 11.2 L 13.3 3.2 C 10.7 9.8, 6.7 12, 3 12 Z" fill="#BC9200"></path>
+  <line x1="3" y1="12" x2="13.3" y2="11.2" stroke="#4E3413" stroke-width="1.2" stroke-dasharray="0 1.5" stroke-linecap="round"></line>
+  <path d="M 3 12 C 6.7 12, 10.7 9.8, 13.3 3.2" stroke="#180F09" stroke-width="1.5" stroke-linecap="square" fill="none"></path>
+</svg>