Publish harness and TUI open-source

initial sync from the monorepo

crates/codegen/xai-grok-hooks/examples/hooks/bin/tool-logger.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+# tool-logger.sh — log tool calls to a local activity file
+#
+# Reads the hook envelope from stdin and appends a one-line JSON entry
+# to ~/.grok/tool-activity.log with event name, tool name, and timestamp.
+# `toolName` is the resolved tool (e.g. `linear__save_issue` for MCP calls).
+
+INPUT=$(cat)
+
+EVENT=$(echo "$INPUT" | grep -o '"hookEventName":"[^"]*"' | sed 's/"hookEventName":"//;s/"$//')
+TOOL=$(echo "$INPUT" | grep -o '"toolName":"[^"]*"' | head -1 | sed 's/"toolName":"//;s/"$//')
+BACKGROUNDED=$(echo "$INPUT" | grep -o '"isBackgrounded":[a-z]*' | sed 's/"isBackgrounded"://')
+TIMESTAMP=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+
+LOG_FILE="${HOME}/.grok/tool-activity.log"
+mkdir -p "$(dirname "$LOG_FILE")"
+
+echo "{\"timestamp\":\"${TIMESTAMP}\",\"event\":\"${EVENT}\",\"tool\":\"${TOOL}\",\"backgrounded\":${BACKGROUNDED:-false}}" >> "$LOG_FILE"