agent-ecosystem/.planning/phases/02-service-infrastructure/02-02-SUMMARY.md

phase	plan	subsystem	tags	dependency-graph	tech-stack	key-files	decisions	metrics
02-service-infrastructure	02	main-process	registry-integration ipc-refactoring ssh-context-management	requires provides affects 02-01 registry-based-service-routing all-ipc-handlers ssh-connect-flow	added patterns registry-routing dynamic-service-resolution context-switching	created modified src/main/index.ts src/main/ipc/handlers.ts src/main/ipc/projects.ts src/main/ipc/sessions.ts src/main/ipc/search.ts src/main/ipc/subagents.ts src/main/ipc/ssh.ts	File watcher event rewiring handled by exported onContextSwitched callback from index.ts SSH handler imports onContextSwitched dynamically to avoid circular dependencies Context ID for SSH uses simple format: ssh-{host} Destroy existing SSH context on reconnection to same host	duration completed 6 2026-02-12

Phase 02 Plan 02: Registry Integration Summary

Registry-based service routing with multi-context SSH support

Objective Achieved

Replaced global service variables in main/index.ts with ServiceContextRegistry, updated all IPC handlers to route through registry.getActive(), and implemented SSH context creation/destruction flow.

Tasks Completed

Task 1: Refactor main/index.ts to use ServiceContextRegistry

Changed:

• Removed global service variables (projectScanner, sessionParser, subagentResolver, chunkBuilder, dataCache, fileWatcher, cleanupInterval)
• Added contextRegistry: ServiceContextRegistry
• Removed handleModeSwitch callback entirely
• Created wireFileWatcherEvents(context) helper to manage event listener cleanup
• Created onContextSwitched(context) export for SSH handler to call

Implementation:

// Create ServiceContextRegistry
contextRegistry = new ServiceContextRegistry();

// Create local context
const localContext = new ServiceContext({
  id: 'local',
  type: 'local',
  fsProvider: new LocalFileSystemProvider(),
});

// Register and start
contextRegistry.registerContext(localContext);
localContext.start();

// Wire file watcher events
wireFileWatcherEvents(localContext);

// Initialize IPC handlers with registry
initializeIpcHandlers(contextRegistry, updaterService, sshConnectionManager);

handlers.ts changes:

• Changed initializeIpcHandlers to accept ServiceContextRegistry instead of individual services
• Removed reinitializeServiceHandlers entirely (no longer needed)
• Updated all domain handler initialize calls to pass registry

Files modified:

• src/main/index.ts (111 insertions, 161 deletions)
• src/main/ipc/handlers.ts

Commit: 5bf41c6

Task 2: Update domain IPC handlers to route via registry

Pattern applied to all handlers:

let registry: ServiceContextRegistry;

export function initialize{Domain}Handlers(contextRegistry: ServiceContextRegistry): void {
  registry = contextRegistry;
}

async function handleXxx(...): Promise<...> {
  const { projectScanner, sessionParser, ... } = registry.getActive();
  // Use services
}

projects.ts:

• Changed signature to initializeProjectHandlers(registry: ServiceContextRegistry)
• Resolve projectScanner via registry.getActive() in each handler
• 3 handlers updated

sessions.ts:

• Changed signature to initializeSessionHandlers(registry: ServiceContextRegistry)
• Destructure all services from registry.getActive() at invocation time
• 6 handlers updated

search.ts:

• Changed signature to initializeSearchHandlers(registry: ServiceContextRegistry)
• Resolve projectScanner via registry.getActive()
• 1 handler updated

subagents.ts:

• Changed signature to initializeSubagentHandlers(registry: ServiceContextRegistry)
• Resolve all services from registry.getActive()
• Still passes fsProvider and projectsDir to buildSubagentDetail as before
• 1 handler updated

ssh.ts:

• Changed signature to initializeSshHandlers(manager, registry)
• Removed onModeSwitch callback parameter
• SSH_CONNECT handler:
  • Creates new ServiceContext with SSH provider
  • Registers in registry
  • Starts context
  • Switches registry to new context
  • Dynamically imports onContextSwitched from index.ts and calls it
• SSH_DISCONNECT handler:
  • Switches registry back to 'local'
  • Destroys SSH context
  • Calls onContextSwitched with local context
• All other SSH handlers unchanged (test, getConfigHosts, etc.)

Files modified:

• src/main/ipc/projects.ts
• src/main/ipc/sessions.ts
• src/main/ipc/search.ts
• src/main/ipc/subagents.ts
• src/main/ipc/ssh.ts (100 insertions, 70 deletions)

Commit: 24051ac

Deviations from Plan

None - plan executed exactly as written.

Verification Results

Type checking: ✅ Pass

pnpm typecheck — zero errors

Tests: ✅ Pass

Test Files: 31 passed
Tests: 494 passed
Duration: 4.88s

Code inspection: ✅ Pass

• main/index.ts has contextRegistry instead of individual service globals
• reinitializeServiceHandlers no longer exists in handlers.ts
• All IPC handlers use registry.getActive() pattern (12 occurrences)
• SSH connect creates ServiceContext and registers it
• SSH disconnect destroys SSH context and switches to local
• File watcher events rewired via onContextSwitched callback

Architecture Impact

Before (single-context):

main/index.ts:
  let projectScanner: ProjectScanner
  let sessionParser: SessionParser
  ...

IPC handlers:
  let projectScanner = /* set at init */
  function handleXxx() {
    projectScanner.scan() // always uses same instance
  }

SSH connect:
  recreate all services with new provider
  call reinitializeServiceHandlers()

After (multi-context):

main/index.ts:
  let contextRegistry: ServiceContextRegistry
  contextRegistry.registerContext(localContext)

IPC handlers:
  let registry: ServiceContextRegistry
  function handleXxx() {
    const { projectScanner } = registry.getActive()
    projectScanner.scan() // dynamically resolved
  }

SSH connect:
  create new ServiceContext
  registry.registerContext(sshContext)
  registry.switch('ssh-host')
  // local context stays alive in background

Key improvements:

1. No service recreation - contexts are isolated, switching is instant
2. Local context persists - can switch back without re-initialization
3. No reinitializeServiceHandlers - dynamic routing eliminates the need
4. Clean separation - SSH connection management vs. service context management
5. File watcher stays alive - only pause/resume on switch

Next Steps

Phase 02 Plan 03 (SSH notification manager integration):

• Set NotificationManager on SSH context's FileWatcher
• Ensure error detection works for SSH sessions
• Wire up SSH context file watcher to NotificationManager

Phase 03 (Renderer state management):

• Snapshot/restore Zustand state on context switch
• Validate tab restoration against current context
• Update workspace indicators in sidebar

Self-Check

Created files exist: N/A (no new files created)

Modified files verified:

✓ src/main/index.ts — uses contextRegistry
✓ src/main/ipc/handlers.ts — accepts registry, no reinitialize function
✓ src/main/ipc/projects.ts — routes via registry.getActive()
✓ src/main/ipc/sessions.ts — routes via registry.getActive()
✓ src/main/ipc/search.ts — routes via registry.getActive()
✓ src/main/ipc/subagents.ts — routes via registry.getActive()
✓ src/main/ipc/ssh.ts — creates/destroys ServiceContext

Commits exist:

✓ 5bf41c6 — refactor(02-02): main/index.ts to use ServiceContextRegistry
✓ 24051ac — refactor(02-02): IPC handlers route via ServiceContextRegistry

Self-Check: PASSED

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Completed: 2026-02-12 Duration: 6 minutes