Hooks

Where it lives

• hooks/useAgentBoard.tsGitHub ↗
  Read the script

  'use client'
  
  import { useState, useEffect, useCallback, useMemo } from 'react'
  import type { TaskWithDeps, TaskStatus } from '@/types/task'
  import type { Host } from '@/types/host'
  import { isSelfHost } from '@/lib/host-kind'
  import { cardUrl, dedupeCards, fetchSharedCards } from '@/lib/task-client'
  import type { TaskUpdates, CommentResult } from '@/hooks/useTasks'
  
  /**
   * One agent's board: its own cards plus the cards of its teams assigned to it.
   * `hostUrl` is the host the agent lives on ('' = this host). Every call goes to that host: a host
   * that does not own the agent has no cards for it, and a wrong host looks like an empty board.
   */
  /** A card with the host that holds it, set for project cards (their project can be on any host) */
  export type BoardCard = TaskWithDeps & { hostBase?: string }
  
  export function useAgentBoard(agentId: string | null, hostUrl: string = '', hosts: Host[] = [], aliases: string[] = []) {
    const [tasks, setTasks] = useState<BoardCard[]>([])
    const [loading, setLoading] = useState(false)
    const [error, setError] = useState<string | null>(null)
  
    const fetchBoard = useCallback(async () => {
      if (!agentId) return
      try {
        const res = await fetch(`${hostUrl}/api/agents/${agentId}/board`, { signal: AbortSignal.timeout(10000) })
        if (res.status === 404) throw new Error('This host does not know this agent')
        if (!res.ok) throw new Error('Could not load the board')
        const data = await res.json()
        // Project cards for this agent: a project is stored on its owner's host, which may not be this agent's,
        // so every host is asked. A host that does not answer simply adds nothing.
        const targets = hosts.length > 0 ? hosts.filter(h => h.enabled !== false) : [{ id: 'local', name: 'This host', url: '', isSelf: true } as Host]
        const projectCards = (await Promise.all(targets.map(async host => {
          const base = isSelfHost(host) ? '' : host.url.replace(/\/$/, '')
          try {
            const r = await fetch(`${base}/api/projects?assignee=${encodeURIComponent(agentId)}`, { signal: AbortSignal.timeout(6000) })
            if (!r.ok) return []
            const d = await r.json()
            return ((d.projects || []) as Array<{ cards?: TaskWithDeps[] }>).flatMap(p => (p.cards || []).map(c => ({ ...c, hostBase: base })))
          } catch {
            return []
          }
        }))).flat()
        // Cards on OTHER hosts that list this agent as a co-owner: the agent's own host already put its local ones in
        // `data.cards`, so it is not asked again. A host that does not answer adds nothing. The names let a host
        // that does not know the agent match an owner given by name.
        const sharedCards = await fetchSharedCards(agentId, aliases, targets.map(h => (isSelfHost(h) ? '' : h.url.replace(/\/$/, ''))), hostUrl)
        // The same card id can come from more than one answer: it is listed once, the board's own copy first
        setTasks(dedupeCards([...(data.cards || []), ...projectCards, ...sharedCards]))
        setError(null)
      } catch (err) {
        setError(err instanceof Error ? err.message : 'The host is offline or out of reach')
      }
    // eslint-disable-next-line react-hooks/exhaustive-deps
    }, [agentId, hostUrl, aliases.join(','), hosts.map(h => `${h.id}|${h.url}|${h.enabled}`).join(',')])
  
    useEffect(() => {
      if (!agentId) { setTasks([]); return }
      setLoading(true)
      fetchBoard().finally(() => setLoading(false))
      const timer = setInterval(fetchBoard, 5000)
      return () => clearInterval(timer)
    }, [agentId, fetchBoard])
  
    // A card is changed through the API of the board it lives on
    const base = useCallback((task: BoardCard) =>
      // A card shared with this agent stays on the board it was made on, on the host that holds it
      task.shared
        ? cardUrl(task.hostBase ?? hostUrl, { id: task.id, scope: task.scope, teamId: task.teamId, projectId: task.projectId, ownerAgentId: task.ownerAgentId })
        : task.scope === 'project' && task.projectId
        ? cardUrl(task.hostBase ?? '', { id: task.id, scope: 'project', projectId: task.projectId })
        : task.scope === 'team' && task.teamId
          ? `${hostUrl}/api/teams/${task.teamId}/tasks/${task.id}`
          : `${hostUrl}/api/agents/${agentId}/tasks/${task.id}`, [agentId, hostUrl])
  
    const createTask = useCallback(async (data: { subject: string; description?: string; blockedBy?: string[]; priority?: number }) => {
      if (!agentId) return
      // A new card goes on the agent's own board; sharing work with others is a team (or project) card
      const res = await fetch(`${hostUrl}/api/agents/${agentId}/tasks`, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ subject: data.subject, description: data.description, blockedBy: data.blockedBy, priority: data.priority }),
      })
      if (!res.ok) throw new Error('Failed to create task')
      await fetchBoard()
    }, [agentId, hostUrl, fetchBoard])
  
    const updateTask = useCallback(async (taskId: string, updates: TaskUpdates) => {
      const task = tasks.find(t => t.id === taskId)
      if (!task) return { unblocked: [] as TaskWithDeps[] }
      setTasks(prev => prev.map(t => t.id === taskId ? { ...t, ...updates, updatedAt: new Date().toISOString() } as TaskWithDeps : t))
      // A card on the agent's own board stays the agent's: the assignee is not sent
      const body = task.scope === 'team' || task.scope === 'project' ? updates : { ...updates, assigneeAgentId: undefined }
      const res = await fetch(base(task), {
        method: task.scope === 'team' || task.scope === 'project' ? 'PUT' : 'PATCH',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify(body),
      })
      if (!res.ok) {
        await fetchBoard()
        const detail = await res.json().catch(() => ({}))
        throw new Error(detail?.message || detail?.error || 'Failed to update task')
      }
      const data = await res.json()
      await fetchBoard()
      return { unblocked: data.

• hooks/useAgentPlayback.tsGitHub ↗
  Read the script

  'use client'
  
  import { useState, useEffect, useCallback, useRef } from 'react'
  import type { PlaybackState, PlaybackControl } from '@/types/playback'
  
  /**
   * Default playback speed
   */
  const DEFAULT_PLAYBACK_SPEED = 1.0
  
  /**
   * Valid playback speed options
   */
  export const PLAYBACK_SPEEDS = [0.5, 1.0, 1.5, 2.0] as const
  
  /**
   * Hook for managing agent transcript playback
   *
   * Handles playback state management, controls (play/pause/seek/speed),
   * and message loading for conversation transcript playback.
   *
   * @param agentId - Agent ID to manage playback for
   * @param sessionId - Session ID to play back (optional for cross-session)
   */
  export function useAgentPlayback(
    agentId: string,
    sessionId?: string
  ) {
    const [state, setState] = useState<PlaybackState | null>(null)
    const [loading, setLoading] = useState(true)
    const [error, setError] = useState<Error | null>(null)
    const [messages, setMessages] = useState<Array<{
      role: 'user' | 'assistant' | 'system'
      content: string
      timestamp?: number
      metadata?: Record<string, any>
    }>>([])
    const [autoSaveEnabled, setAutoSaveEnabled] = useState(true)
  
    // Refs for timers and tracking
    const autoSaveTimerRef = useRef<NodeJS.Timeout | undefined>(undefined)
    const isMountedRef = useRef(true)
  
    /**
     * Load playback state from API
     */
    const loadPlaybackState = useCallback(async () => {
      setLoading(true)
      setError(null)
  
      try {
        console.log(`[useAgentPlayback] Loading state for agent ${agentId}, session ${sessionId || 'all'}`)
  
        const queryParams = sessionId ? `?sessionId=${sessionId}` : ''
        const response = await fetch(`/api/agents/${agentId}/playback${queryParams}`)
  
        if (!response.ok) {
          const errorData = await response.json()
          throw new Error(errorData.error || `HTTP ${response.status}: ${response.statusText}`)
        }
  
        const data = await response.json()
  
        if (!isMountedRef.current) return
  
        if (data.success && data.playbackState) {
          setState(data.playbackState)
          console.log(`[useAgentPlayback] Loaded state: playing=${data.playbackState.isPlaying}, position=${data.playbackState.currentMessageIndex}`)
        } else {
          // Initialize default state if none exists
          setState({
            agentId,
            sessionId,
            isPlaying: false,
            currentMessageIndex: 0,
            speed: DEFAULT_PLAYBACK_SPEED,
            totalMessages: 0,
            createdAt: Date.now(),
            updatedAt: Date.now()
          })
        }
      } catch (err) {
        if (!isMountedRef.current) return
  
        console.error('[useAgentPlayback] Failed to load state:', err)
        setError(err instanceof Error ? err : new Error('Failed to load playback state'))
        
        // Set default state on error
        setState({
          agentId,
          sessionId,
          isPlaying: false,
          currentMessageIndex: 0,
          speed: DEFAULT_PLAYBACK_SPEED,
          totalMessages: 0,
          createdAt: Date.now(),
          updatedAt: Date.now()
        })
      } finally {
        if (isMountedRef.current) {
          setLoading(false)
        }
      }
    }, [agentId, sessionId])
  
    /**
     * Update playback state via API
     */
    const updatePlaybackState = useCallback(async (action: PlaybackControl) => {
      if (!state) return
  
      try {
        console.log(`[useAgentPlayback] Updating state: ${action.action}`, action.value ?? '')
  
        const response = await fetch(`/api/agents/${agentId}/playback`, {
          method: 'POST',
          headers: {
            'Content-Type': 'application/json'
          },
          body: JSON.stringify({
            action: action.action,
            value: action.value,
            sessionId
          })
        })
  
        if (!response.ok) {
          const errorData = await response.json()
          throw new Error(errorData.error || `HTTP ${response.status}: ${response.statusText}`)
        }
  
        const data = await response.json()
  
        if (!isMountedRef.current) return
  
        if (data.success && data.playbackState) {
          setState(data.playbackState)
        }
      } catch (err) {
        if (!isMountedRef.current) return
  
        console.error('[useAgentPlayback] Failed to update state:', err)
        setError(err instanceof Error ? err : new Error('Failed to update playback state'))
      }
    }, [agentId, sessionId, state])
  
    /**
     * Start playback
     */
    const start = useCallback(() => {
      if (!state || state.isPlaying) return
      updatePlaybackState({ action: 'play' })
    }, [state, updatePlaybackState])
  
    /**
     * Pause playback
     */
    const pause = useCallback(() => {
      if (!state || !state.isPlaying) return
      updatePlaybackState({ action: 'pause' })
    }, [state, updatePlaybackState])
  
    /**
     * Toggle play/pause
     */
    const toggle = useCallback(() => {
      if (!state) return
      if (state.isPlaying) {
        pause()
      } else {
        start()
      }
    }, [state, start, pause])
  
    /**
     * Seek to specific message index
     */
    const seek = useCallback((position: number) => {
      if (!state || position < 0) return
      const maxPosition = state.totalMessages !== undefined 
        ? Math.min(position, state.totalMessages - 1) 
        : position
      updatePlaybackState({ action: 'seek', value: maxPosition })
    }, [state, updatePlaybackState])
  
    /**
     * Set playback speed
     */
    const setSpeed = useCallback((speed: number) => {
      if (!state || speed < 0.5 || speed > 2.0) return
      updatePlaybackState({ action: 'setSpeed', value: speed })
    }, [state, updatePlaybackState])
  
    /**
     * Reset playback to beginning
     */
    const reset = useCallback(() => {
      updatePlaybackState({ action: 'reset' })
    }, [updatePlaybackState])
  
    /**
     * Move to next message
     */
    const next = useCallback(() => {
      if (!state) return
      const newPosition = state.currentMessageIndex + 1
      seek(newPosition)
    }, [state, seek])
  
    /**
     * Move to previous message
     */
    const previous = useCallback(() => {
      if (!state) return
      const newPosition = Math.max(0,

• hooks/useAgentSearch.tsGitHub ↗
  Read the script

  'use client'
  
  import { useState, useEffect, useCallback, useRef } from 'react'
  import type { SearchQuery, SearchResult, HighlightedSearchResult } from '@/types/search'
  
  /**
   * Debounce delay for search queries (in milliseconds)
   */
  const SEARCH_DEBOUNCE_MS = 300
  
  /**
   * Interface for search results with highlighting
   */
  export interface SearchResults {
    results: HighlightedSearchResult[]
    total: number
    query: string
    highlights: string[]
    timestamp: number
  }
  
  /**
   * Hook for searching agent conversation data
   *
   * Provides debounced search, results management, and error handling
   * for searching across agent messages, conversations, and code.
   *
   * @param agentId - Agent ID to search within
   */
  export function useAgentSearch(agentId: string) {
    const [query, setQuery] = useState<string>('')
    const [results, setResults] = useState<SearchResults | null>(null)
    const [loading, setLoading] = useState(false)
    const [error, setError] = useState<Error | null>(null)
    const [debouncedQuery, setDebouncedQuery] = useState<string>('')
  
    // Ref to track debounce timer
    const debounceTimerRef = useRef<NodeJS.Timeout | undefined>(undefined)
  
    // Ref to track if component is mounted (for async operations)
    const isMountedRef = useRef(true)
  
    /**
     * Perform search with the current debounced query
     */
    const performSearch = useCallback(async (searchQuery: string) => {
      if (!searchQuery.trim()) {
        setResults(null)
        setLoading(false)
        setError(null)
        return
      }
  
      setLoading(true)
      setError(null)
  
      try {
        console.log(`[useAgentSearch] Searching for: "${searchQuery}" in agent ${agentId}`)
  
        const queryParams = new URLSearchParams({
          q: searchQuery
        })
  
        const response = await fetch(`/api/agents/${agentId}/search?${queryParams.toString()}`)
  
        if (!response.ok) {
          const errorData = await response.json()
          throw new Error(errorData.error || `HTTP ${response.status}: ${response.statusText}`)
        }
  
        const data = await response.json()
  
        if (!isMountedRef.current) return
  
        const searchResults: HighlightedSearchResult[] = data.results || []
        const searchTerms = extractSearchTerms(searchQuery)
        const highlightedResults = highlightResults(searchResults, searchTerms)
  
        setResults({
          results: highlightedResults,
          total: data.count || highlightedResults.length,
          query: searchQuery,
          highlights: searchTerms,
          timestamp: Date.now()
        })
  
        console.log(`[useAgentSearch] Found ${data.count} results for query "${searchQuery}"`)
      } catch (err) {
        if (!isMountedRef.current) return
  
        console.error('[useAgentSearch] Search failed:', err)
        setError(err instanceof Error ? err : new Error('Unknown search error'))
        setResults(null)
      } finally {
        if (isMountedRef.current) {
          setLoading(false)
        }
      }
    }, [agentId])
  
    /**
     * Update search query with debouncing
     */
    useEffect(() => {
      if (debounceTimerRef.current) {
        clearTimeout(debounceTimerRef.current)
      }
  
      debounceTimerRef.current = setTimeout(() => {
        setDebouncedQuery(query)
      }, SEARCH_DEBOUNCE_MS)
  
      return () => {
        if (debounceTimerRef.current) {
          clearTimeout(debounceTimerRef.current)
        }
      }
    }, [query])
  
    /**
     * Perform search when debounced query changes
     */
    useEffect(() => {
      performSearch(debouncedQuery)
    }, [debouncedQuery, performSearch])
  
    /**
     * Clear search results and query
     */
    const clearSearch = useCallback(() => {
      setQuery('')
      setResults(null)
      setError(null)
      setLoading(false)
    }, [])
  
    /**
     * Retry the last search
     */
    const retrySearch = useCallback(() => {
      if (debouncedQuery) {
        performSearch(debouncedQuery)
      }
    }, [debouncedQuery, performSearch])
  
    /**
     * Extract search terms from query for highlighting
     * Removes common stop words and punctuation
     */
    function extractSearchTerms(queryText: string): string[] {
      const words = queryText
        .toLowerCase()
        .replace(/[^\w\s]/g, '')
        .split(/\s+/)
        .filter(word => word.length > 2)
  
      const stopWords = new Set([
        'the', 'and', 'or', 'but', 'in', 'on', 'at', 'to', 'for', 'of',
        'with', 'by', 'from', 'up', 'about', 'into', 'through', 'during',
        'before', 'after', 'above', 'below', 'between', 'under', 'again'
      ])
  
      return words.filter(word => !stopWords.has(word))
    }
  
    /**
     * Add highlighting to search results
     */
    function highlightResults(
      searchResults: SearchResult[],
      highlightTerms: string[]
    ): HighlightedSearchResult[] {
      return searchResults.map((result) => {
        const text = result.text
        const highlightRanges: Array<{ start: number; end: number }> = []
  
        for (const term of highlightTerms) {
          const lowerText = text.toLowerCase()
          const lowerTerm = term.toLowerCase()
          let position = lowerText.indexOf(lowerTerm)
  
          while (position !== -1) {
            highlightRanges.push({ start: position, end: position + term.length })
            position = lowerText.indexOf(lowerTerm, position + term.length)
          }
        }
  
        highlightRanges.sort((a, b) => a.start - b.start)
  
        let highlightedText = ''
        let lastIndex = 0
  
        for (const range of highlightRanges) {
          highlightedText += text.substring(lastIndex, range.start)
          highlightedText += `<mark>${text.substring(range.start, range.end)}</mark>`
          lastIndex = range.end
        }
  
        highlightedText += text.substring(lastIndex)
  
        return {
          ...result,
          highlightedText,
          highlightRanges
        }
      })
    }
  
    return {
      // State
      query,
      results,
      loading,
      error,
  
      // Actions
      setQuery,
      clearSearch,
      retrySearch
    }
  }
  

• hooks/useAgents.tsGitHub ↗
  Read the script

  'use client'
  
  import { useState, useEffect, useCallback, useMemo, useRef } from 'react'
  import type { Agent, AgentsApiResponse, AgentStats, AgentHostInfo } from '@/types/agent'
  import type { Host } from '@/types/host'
  import { useHosts } from './useHosts'
  import { cacheRemoteAgents, getCachedAgents } from '@/lib/agent-cache'
  
  const REFRESH_INTERVAL = 10000 // 10 seconds
  const SELF_FETCH_TIMEOUT = 8000 // 8 seconds for self host (tmux queries can be slow)
  const PEER_FETCH_TIMEOUT = 3000 // 3 seconds for peer hosts (fail fast, use cache)
  
  /**
   * Check if a host URL points to localhost (the machine running this dashboard)
   * Used client-side since os.hostname() isn't available in browser
   */
  function isLocalhostUrl(url: string | undefined): boolean {
    if (!url) return true
    const lowered = url.toLowerCase()
    return lowered.includes('localhost') || lowered.includes('127.0.0.1')
  }
  
  /**
   * Aggregated stats across all hosts
   */
  interface AggregatedStats {
    total: number
    online: number
    offline: number
    orphans: number
    newlyRegistered: number
    cached: number // Number of agents loaded from cache
  }
  
  /**
   * Host fetch result
   */
  interface HostFetchResult {
    hostId: string
    success: boolean
    response?: AgentsApiResponse
    error?: Error
    fromCache?: boolean
  }
  
  /** Tell the server log about a client-side event (best effort, never throws). */
  function reportClientEvent(event: string, detail: string) {
    try {
      fetch('/api/debug/client-event', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ event, lastError: detail, path: location.pathname }),
      }).catch(() => { /* diagnostics only */ })
    } catch { /* diagnostics only */ }
  }
  
  /**
   * Fetch agents from a specific host
   */
  /** A host's agent list as this page uses it: host fields on every agent, peers cached for offline use */
  function asHostResult(host: Host, data: AgentsApiResponse, isSelf: boolean): HostFetchResult {
    // Inject host info directly onto agents (for remote hosts, ensure correct hostId/hostName/hostUrl)
    const agents = data.agents.map(agent => ({
      ...agent,
      hostId: host.id,
      hostName: host.name,
      hostUrl: host.url,
      isSelf,
    }))
  
    // Cache peer host agents for offline access (not self host)
    if (!isSelf) {
      cacheRemoteAgents(host.id, agents)
    }
  
    return {
      hostId: host.id,
      success: true,
      response: {
        ...data,
        agents,
        hostInfo: {
          ...data.hostInfo,
          id: host.id,
          name: host.name,
          isSelf,
        }
      }
    }
  }
  
  /** A host on an older mesh protocol: its list is fetched directly, but no status comes with it, so Unknown */
  function markOldVersion<T extends HostFetchResult>(r: T, version: string): T {
    if (!r.response) return r
    return { ...r, response: { ...r.response, agents: r.response.agents.map(a => ({ ...a, hostUnreachable: true, hostOldVersion: version })) } }
  }
  
  /** A host that cannot be reached: keep its last list, with the status shown as Unknown */
  function unreachable(response: AgentsApiResponse): AgentsApiResponse {
    return { ...response, agents: response.agents.map(a => ({ ...a, hostUnreachable: true })) }
  }
  
  /** Every peer's agents as this page's own host received them over /mesh (`?mesh=1`) */
  type MeshPeers = Array<{ hostId: string; agents: Agent[] }>
  /** Peers on an older mesh protocol (hostId -> version): their agents' status cannot be known */
  type OldVersionHosts = Record<string, string>
  
  async function fetchHostAgents(host: Host, query = ''): Promise<HostFetchResult & { peers?: MeshPeers; oldVersionHosts?: OldVersionHosts }> {
    const isSelf = host.isSelf || isLocalhostUrl(host.url)
    const baseUrl = isSelf ? '' : host.url
    const timeout = isSelf ? SELF_FETCH_TIMEOUT : PEER_FETCH_TIMEOUT
  
    try {
      const controller = new AbortController()
      const timeoutId = setTimeout(() => controller.abort(), timeout)
  
      const response = await fetch(`${baseUrl}/api/agents${query}`, {
        signal: controller.signal
      })
  
      clearTimeout(timeoutId)
  
      if (!response.ok) {
        throw new Error(`HTTP ${response.status}: ${response.statusText}`)
      }
  
      const { peers, oldVersionHosts, ...data } = await response.json() as AgentsApiResponse & { peers?: MeshPeers; oldVersionHosts?: OldVersionHosts }
      return { ...asHostResult(host, data, isSelf), ...(peers && { peers }), ...(oldVersionHosts && { oldVersionHosts }) }
    } catch (error) {
      console.error(`[useAgents] Failed to fetch from ${host.name} (${host.url}):`, error)
  
      // Try to use cached data for peer hosts (not self)
      if (!isSelf) {
        const cachedAgents = getCachedAgents(host.id)
        if (cachedAgents && cachedAgents.length > 0) {
          console.log(`[useAgents] Using cached data for ${host.name}`)
          return {
            hostId: host.id,
            success: true,
            fromCache: true,
            response: {
              agents: cachedAgents.map(a => ({ ...a, hostUnreachable: true })),
              stats: {
                total: cachedAgents.length,
                online: cachedAgents.filter(a => a.session?.status === 'online').length,
                offline: cachedAgents.filter(a => a.session?.status === 'offline').length,
                orphans: cachedAgents.filter(a => a.isOrphan).length,
                newlyRegistered: 0
              },
              hostInfo: {
                id: host.id,
                name: host.name,
                url: host.url,
                isSelf: false,
              }
            }
          }
        }
      }
  
      return {
        hostId: host.id,
        success: false,
        error: error instanceof Error ? error : new Error('Unknown error')
      }
    }
  }
  
  /**
   * Aggregate results from multiple hosts
   */
  function aggregateResults(results: HostFetchResult[]): {
    agents: Agent[]
    stats: AggregatedStats
    hostErrors: Record<string, Error>
  } {
    const allAgents: Agent[] = []
    const hostErrors: Record<string, Error> = {}
    let cachedCount = 0
  
    for (const result of results) {
      if (re

• hooks/useCompanionWebSocket.tsGitHub ↗
  Read the script

  'use client'
  
  import { useEffect, useRef, useCallback, useState } from 'react'
  
  interface UseCompanionWebSocketOptions {
    agentId: string | null
    onSpeech: (text: string) => void
    onInterrupt?: () => void
  }
  
  /**
   * Hook for bidirectional communication with the server's cerebellum voice subsystem.
   * Connects to /companion-ws?agent={agentId}, receives speech events,
   * and can send user messages back to the voice subsystem.
   */
  export type CompanionWsStatus = 'connecting' | 'open' | 'failed'
  
  export function useCompanionWebSocket({ agentId, onSpeech, onInterrupt }: UseCompanionWebSocketOptions) {
    const onSpeechRef = useRef(onSpeech)
    onSpeechRef.current = onSpeech
    const onInterruptRef = useRef(onInterrupt)
    onInterruptRef.current = onInterrupt
  
    const wsRef = useRef<WebSocket | null>(null)
    // 'failed' once the retries are used up; 'connecting' covers the first attempt and reconnects
    const [status, setStatus] = useState<CompanionWsStatus>('connecting')
  
    const send = useCallback((data: Record<string, unknown>) => {
      if (wsRef.current?.readyState === WebSocket.OPEN) {
        try {
          wsRef.current.send(JSON.stringify(data))
        } catch {
          // Ignore send errors
        }
      }
    }, [])
  
    useEffect(() => {
      if (!agentId) return
      setStatus('connecting')
  
      const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:'
      const wsUrl = `${protocol}//${window.location.host}/companion-ws?agent=${encodeURIComponent(agentId)}`
  
      let ws: WebSocket | null = null
      let mounted = true
      let retryCount = 0
      const maxRetries = 5
      const retryDelays = [1000, 2000, 3000, 5000, 10000]
  
      function connect() {
        if (!mounted) return
  
        // Close any existing socket to prevent orphaned connections
        if (ws && ws.readyState !== WebSocket.CLOSED) {
          ws.close()
        }
  
        ws = new WebSocket(wsUrl)
        wsRef.current = ws
  
        ws.onopen = () => {
          retryCount = 0
          setStatus('open')
          console.log('[CompanionWS] Connected for agent', agentId?.substring(0, 8))
        }
  
        ws.onmessage = (event) => {
          try {
            const data = JSON.parse(event.data)
            if (data.type === 'speech' && data.text) {
              onSpeechRef.current(data.text)
            } else if (data.type === 'interrupt') {
              onInterruptRef.current?.()
            }
          } catch {
            // Ignore non-JSON messages
          }
        }
  
        ws.onclose = () => {
          // Guard against stale closures from orphaned sockets
          if (wsRef.current !== ws) return
          wsRef.current = null
          if (!mounted) return
          if (retryCount < maxRetries) {
            const delay = retryDelays[retryCount] || retryDelays[retryDelays.length - 1]
            retryCount++
            setStatus('connecting')
            setTimeout(connect, delay)
          } else {
            setStatus('failed')
          }
        }
  
        ws.onerror = () => {
          // onclose will handle reconnection
        }
      }
  
      connect()
  
      return () => {
        mounted = false
        if (ws) {
          ws.close()
          ws = null
        }
        wsRef.current = null
      }
    }, [agentId])
  
    return { send, status }
  }
  

• hooks/useDeviceType.tsGitHub ↗
  Read the script

  'use client'
  
  import { useState, useEffect } from 'react'
  
  export type DeviceType = 'phone' | 'tablet' | 'desktop'
  
  interface DeviceInfo {
    deviceType: DeviceType
    isTouch: boolean
  }
  
  function detectTouch(): boolean {
    if (typeof window === 'undefined') return false
    // Primary check: CSS media query for coarse pointer (touch screens)
    if (window.matchMedia?.('(pointer: coarse)').matches) return true
    // Fallback: touch event support
    if ('ontouchstart' in window) return true
    // Fallback: navigator check
    if (navigator.maxTouchPoints > 0) return true
    return false
  }
  
  function classify(width: number, isTouch: boolean): DeviceType {
    if (width < 768) return 'phone'
    // Touch devices at any width >= 768 get tablet experience
    // Non-touch devices between 768-1023 also get tablet (small laptop screens are fine with it)
    if (isTouch) return 'tablet'
    if (width < 1024) return 'tablet'
    return 'desktop'
  }
  
  export function useDeviceType(): DeviceInfo {
    const [info, setInfo] = useState<DeviceInfo>(() => {
      if (typeof window === 'undefined') return { deviceType: 'desktop', isTouch: false }
      const isTouch = detectTouch()
      const deviceType = classify(window.innerWidth, isTouch)
      return { deviceType, isTouch }
    })
  
    useEffect(() => {
      const update = () => {
        const isTouch = detectTouch()
        const deviceType = classify(window.innerWidth, isTouch)
        setInfo(prev => {
          if (prev.deviceType === deviceType && prev.isTouch === isTouch) return prev
          return { deviceType, isTouch }
        })
      }
  
      // Listen for resize
      window.addEventListener('resize', update)
  
      // Listen for pointer capability changes (e.g. connecting/disconnecting mouse)
      const mql = window.matchMedia?.('(pointer: coarse)')
      if (mql?.addEventListener) {
        mql.addEventListener('change', update)
      }
  
      // Initial check
      update()
  
      return () => {
        window.removeEventListener('resize', update)
        if (mql?.removeEventListener) {
          mql.removeEventListener('change', update)
        }
      }
    }, [])
  
    return info
  }
  

• hooks/useDocuments.tsGitHub ↗
• hooks/useExperiment.tsGitHub ↗
• hooks/useHosts.tsGitHub ↗
• hooks/useLaunchChoice.tsGitHub ↗
• hooks/useMeetingMessages.tsGitHub ↗
• hooks/useOpenTasks.tsGitHub ↗
• hooks/useOrgs.tsGitHub ↗
• hooks/usePeople.tsGitHub ↗
• hooks/usePrefersReducedMotion.tsGitHub ↗
• hooks/useProjectBoard.tsGitHub ↗
• hooks/useProjects.tsGitHub ↗
• hooks/useReportsTo.tsGitHub ↗
• hooks/useSecretRequests.tsGitHub ↗
• hooks/useSessionActivity.tsGitHub ↗
• hooks/useSpeechLevel.tsGitHub ↗
• hooks/useSqlWriteRequests.tsGitHub ↗
• hooks/useTTS.tsGitHub ↗
• hooks/useTaskSummary.tsGitHub ↗
• hooks/useTasks.tsGitHub ↗
• hooks/useTeam.tsGitHub ↗
• hooks/useTerminal.tsGitHub ↗
• hooks/useToolReadiness.tsGitHub ↗
• hooks/useTranscriptExport.tsGitHub ↗
• hooks/useWebSocket.tsGitHub ↗
• hooks/useWorldEvents.tsGitHub ↗
• hooks/useWorldHistory.tsGitHub ↗
• hooks/useWorldTeams.tsGitHub ↗

All 33 scripts are listed above. The source is inlined for 6 of them, starting with whatever hooks.json actually runs. See all of them in the repo.

Read the script before you install anything that runs on your machine. This is the one part of a plugin that acts without being asked.