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mem0/mem0-plugin/scripts/on_post_tool_use.sh
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kartik-mem0 d5b15cebb7 feat(mem0-plugin): add PostHog telemetry across all hooks
Wire fire-and-forget PostHog telemetry into every lifecycle hook
(session_start, stop, pre_compact, task_completed, user_prompt,
post_tool_use) matching the same project key, endpoint, and payload
structure used by the Python SDK, CLI, and OpenClaw.

- 10% sampling on ALL events to keep PostHog costs predictable
- Anonymous distinct_id: MD5(api_key) or SHA-256(username)
- Opt-out via MEM0_TELEMETRY=false
- Platform detection: Claude Code / Cursor / Codex
- Never sends user content, API keys, or raw identifiers
- 16 new tests (110 total passing)
2026-05-21 21:08:21 +05:30

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#!/usr/bin/env bash
# Hook: PostToolUse — track mem0 MCP tool usage for session stats
#
# Fires after any tool call. We only care about mem0 MCP tools:
# mcp__mem0__add_memory → record an add
# mcp__mem0__search_memories → record a search
#
# Input: JSON on stdin with tool_name, tool_input, tool_result
# Output: none (exit 0, non-blocking)
set -uo pipefail
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
INPUT=$(cat)
TOOL_NAME=$(echo "$INPUT" | jq -r '.tool_name // ""' 2>/dev/null || echo "")
case "$TOOL_NAME" in
mcp__mem0__add_memory)
CATEGORY=$(echo "$INPUT" | jq -r '.tool_input.metadata.type // .tool_input.metadata.category // ""' 2>/dev/null || echo "")
python3 "$SCRIPT_DIR/session_stats.py" add "$CATEGORY" 2>/dev/null || true
python3 "$SCRIPT_DIR/telemetry.py" tool_use --tool=add_memory 2>/dev/null &
;;
mcp__mem0__search_memories|mcp__mem0__get_memories)
python3 "$SCRIPT_DIR/session_stats.py" search 2>/dev/null || true
python3 "$SCRIPT_DIR/telemetry.py" tool_use --tool=search_memories 2>/dev/null &
;;
mcp__mem0__delete_memory)
python3 "$SCRIPT_DIR/telemetry.py" tool_use --tool=delete_memory 2>/dev/null &
;;
mcp__mem0__update_memory)
python3 "$SCRIPT_DIR/telemetry.py" tool_use --tool=update_memory 2>/dev/null &
;;
esac
exit 0