Storage Keys

Browser Storage

localStorage

Key	Type	Description
chat-panel-size	string	Chat widget panel size preference ('default' or 'expanded')

sessionStorage

Key	Type	Description
chat-messages	JSON	Cached chat messages for session continuity
chat-session	JSON	Session state ({ state, mode }) for reconnection

Both keys are cleared when a session ends.

Cloudflare KV (THREAD_MAP)

Key Pattern	Value	TTL	Description
rate:session:{ip}	Count (string)	3600s	Rate limit counter per IP
{threadTs}	Session ID (string)	1800s	Maps Slack thread to DO session
block:ip:{ip}	Any	None	IP block list entry
block:email:{email}	Any	None	Email block list entry

Durable Object Storage

Stored within each ChatSession Durable Object instance:

Key	Type	Description
session_state	SessionState	Core session data (visitor info, mode, Slack thread)
last_visitor_message	number	Timestamp of last visitor message (inactivity tracking)
last_anshul_reply	number	Timestamp of last Anshul reply (away indicator)
last_unmatched_text	string	Last bot question — forwarded to Slack on escalation
session_id	string	Session UUID
conversation_history	ConversationHistory	AI chat history (messages + summary)
message_count	number	Total messages sent in the session

SessionState Shape

interface SessionState {
  visitorName: string;
  visitorEmail: string;
  startPage: string;
  slackThreadTs: string;
  slackChannelId: string;
  lastActivity: number;
  mode: 'bot' | 'live';
  messageCount?: number;
}

ConversationHistory Shape

interface ConversationHistory {
  messages: ChatCompletionMessage[];  // Recent messages (sliding window)
  summary: string;                    // Summary of older messages
  messageCount: number;               // Total message count
}

Cookies

Name	Type	Domain	Expiry	Description
__bypass	HttpOnly	chat.anshulbisen.com	30 days	Rate limit bypass for site owner