Add spec for deeper integration

openspec/changes/add-workspace-context-injection/tasks.md

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+# Tasks: Add Workspace Context Injection
+
+## 1. Dependencies
+
+- [ ] 1.1 Add `@opencode-ai/sdk` to package.json dependencies
+- [ ] 1.2 Run `bun install` to install the SDK
+
+## 2. Types and Settings
+
+- [ ] 2.1 Add `injectWorkspaceContext: boolean` to `OpenCodeSettings` interface (default: `true`)
+- [ ] 2.2 Add `maxNotesInContext: number` to `OpenCodeSettings` interface (default: `20`)
+- [ ] 2.3 Add `maxSelectionLength: number` to `OpenCodeSettings` interface (default: `2000`)
+- [ ] 2.4 Update `DEFAULT_SETTINGS` with new values
+
+## 3. OpenCode Client Module
+
+- [ ] 3.1 Create `src/OpenCodeClient.ts` with SDK client wrapper
+- [ ] 3.2 Implement `getCurrentSessionId()` method to get active session
+- [ ] 3.3 Implement `updateContext()` method with revert + inject logic
+- [ ] 3.4 Add `contextMessageIds` Map for tracking injected messages per session
+- [ ] 3.5 Add error handling for API failures (silent catch, log to console)
+
+## 4. Workspace Context Module
+
+- [ ] 4.1 Create `src/WorkspaceContext.ts` for collecting workspace context
+- [ ] 4.2 Implement `getOpenNotePaths()` using `getLeavesOfType("markdown")`
+- [ ] 4.3 Implement `getSelectedText()` to get current editor selection with source file
+- [ ] 4.4 Implement `formatContext()` to generate the combined context string
+- [ ] 4.5 Add deduplication for files open in multiple panes
+- [ ] 4.6 Add truncation for selections exceeding `maxSelectionLength`
+
+## 5. Main Plugin Integration
+
+- [ ] 5.1 Import `OpenCodeClient` and `WorkspaceContext` in main.ts
+- [ ] 5.2 Initialize `WorkspaceContext` in `onload()`
+- [ ] 5.3 Create debounced `updateOpenCodeContext()` method (2 second delay)
+- [ ] 5.4 Register `active-leaf-change` event listener (conditional on setting)
+- [ ] 5.5 Register `layout-change` event listener (conditional on setting)
+- [ ] 5.6 Register `editor-change` event listener for selection changes (conditional on setting)
+- [ ] 5.7 Initialize `OpenCodeClient` lazily when first needed
+- [ ] 5.8 Add server running check before attempting context updates
+- [ ] 5.9 Trigger initial context injection when server reaches running state
+
+## 6. Settings UI
+
+- [ ] 6.1 Add toggle for "Inject workspace context" in SettingsTab
+- [ ] 6.2 Add slider for "Max notes in context" (1-50 range)
+- [ ] 6.3 Add slider or input for "Max selection length" (500-5000 range)
+- [ ] 6.4 Add descriptive text explaining the feature includes open notes and selected text
+
+## 7. Testing
+
+- [ ] 7.1 Manual test: Open multiple notes, verify context appears in OpenCode
+- [ ] 7.2 Manual test: Select text, verify selection appears in context with source file
+- [ ] 7.3 Manual test: Close notes, verify context updates (old reverted, new injected)
+- [ ] 7.4 Manual test: Clear selection, verify selection section is removed
+- [ ] 7.5 Manual test: Disable setting, verify no context injection
+- [ ] 7.6 Manual test: Server not running, verify no errors thrown
+- [ ] 7.7 Manual test: Large selection, verify truncation works
+- [ ] 7.8 Build and verify no TypeScript errors