feat: add Mem0 plugin for Claude Code and Cursor (#4518)

mem0-plugin/scripts/on_task_completed.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+# Hook: TaskCompleted
+#
+# Fires when a task is marked as completed. Reminds Claude to extract
+# and store learnings via the mem0 MCP tools.
+#
+# Input:  JSON on stdin with task_id, task_subject, task_description
+# Output: Text that becomes feedback to the model (exit 0)
+
+set -euo pipefail
+
+INPUT=$(cat)
+TASK_SUBJECT=$(echo "$INPUT" | jq -r '.task_subject // "unknown task"' 2>/dev/null || echo "unknown task")
+
+cat <<EOF
+Task completed: "$TASK_SUBJECT"
+
+Extract key learnings from this completed task and store them using the mem0 \`add_memory\` tool:
+
+1. What strategy worked well? -> Store with metadata \`{"type": "task_learning"}\`
+2. Were there failed approaches before finding the solution? -> Store with metadata \`{"type": "anti_pattern"}\`
+3. Were there architectural decisions? -> Store with metadata \`{"type": "decision"}\`
+4. Any new conventions or patterns established? -> Store with metadata \`{"type": "convention"}\`
+
+Memories can be as detailed as needed — include full context, reasoning, code snippets, and examples.
+Only store genuinely useful learnings — skip if the task was trivial.
+EOF
+
+exit 0