Add Hindsight plugin

.grok-plugin/marketplace.json

@@ -105,6 +105,19 @@
       "homepage": "https://github.com/firecrawl/firecrawl-grok-plugin",
       "keywords": ["firecrawl", "fire crawl"],
       "domains": ["firecrawl.dev", "docs.firecrawl.dev"]
+    },
+    {
+      "name": "hindsight",
+      "description": "Automatic long-term memory for Grok via Hindsight. Recalls relevant memories before each prompt, retains conversation transcripts, and exposes knowledge-page tools (recall, ingest, create/update/delete pages) through the bundled Hindsight MCP server. Runs a local hindsight-embed daemon on 127.0.0.1; bring your own LLM key for fact extraction.",
+      "category": "memory",
+      "source": {
+        "source": "url",
+        "url": "https://github.com/vectorize-io/hindsight-grok-plugin.git",
+        "sha": "31a126047666fc569e83069a07a7953607170214"
+      },
+      "homepage": "https://vectorize.io/hindsight",
+      "keywords": ["hindsight", "hindsight memory", "vectorize hindsight", "agent memory"],
+      "domains": ["vectorize.io", "hindsight.vectorize.io"]
     }
   ]
 }

.grok-plugin/plugin-index.json

@@ -168,6 +168,37 @@
         ]
       }
     },
+    "hindsight": {
+      "sha": "31a126047666fc569e83069a07a7953607170214",
+      "components": {
+        "hooks": [
+          {
+            "name": "SessionEnd"
+          },
+          {
+            "name": "SessionStart"
+          },
+          {
+            "name": "Stop"
+          },
+          {
+            "name": "UserPromptSubmit"
+          }
+        ],
+        "mcpServers": [
+          {
+            "name": "hindsight",
+            "description": "stdio"
+          }
+        ],
+        "skills": [
+          {
+            "name": "create-agent",
+            "description": "Create a new Hindsight-powered subagent with long-term memory. Use when the user wants a specialized agent that learns…"
+          }
+        ]
+      }
+    },
     "mongodb": {
       "sha": "9ea7387c7a1638604542c6efd52e5efc6a7fc393",
       "components": {