SSH MCP Server

# Epic Fixes Summary - LongRunningCommandSupport ## Changes Applied to Align with Conversation Requirements ### 1. REMOVED ALL COMMAND ID REFERENCES ✅ - Eliminated all `commandId`, `cmd-abc-123`, UUID references - APIs now use only `sessionName` parameter - Session-based identification throughout ### 2. SIMPLIFIED RESULT STORAGE ✅ - Removed complex OutputBufferManager, CircularBuffer, caching systems - Replaced with 6 simple session fields: `lastCommand`, `lastOutput`, `lastExitCode`, `lastState`, `lastStartTime`, `lastEndTime` - Storage in existing SessionData interface only ### 3. REMOVED UNAUTHORIZED FEATURES ✅ **Completely removed:** - Metrics collection systems (MetricsCollector class) - Visual progress indicators for browser - Output pagination and offset retrieval - Performance benchmarking sections - Caching layers for polling responses - Rollout strategy with feature flags - Complex state machines - Buffer management systems ### 4. FIXED API SPECIFICATIONS ✅ **Correct APIs:** - `ssh_get_long_running_command_state(sessionName)` - simple state object - `ssh_cancel_running_command(sessionName)` - cancels current command - Removed all optional parameters and complex response objects ### 5. FIXED BROWSER CANCELLATION MESSAGE ✅ - Exact message: `"[CANCELLED] Command terminated by MCP client"` - Simple text via WebSocket, not complex JSON ### 6. SIMPLIFIED STATE MANAGEMENT ✅ - Basic states: running, completed, failed, cancelled - Stored in simple session fields - No complex CommandStateManager classes ### 7. EMPHASIZED SLEEP COMMAND TESTING ✅ - Primary tests: `sleep 120`, `sleep 65`, `sleep 30` - Removed complex test scenarios - Focus on async transition at 60 seconds ### 8. ENFORCED RAM-ONLY STORAGE ✅ - Clear constraint: everything in memory - No disk storage or persistence - Simple session field updates ### 9. REDUCED STORY POINTS ✅ - Story 1: 5→3 points - Story 2: 5→2 points - Story 3: Already 2 points - Story 4: 5→2 points - Story 5: 3→1 point - Story 6: 5→1 point - Total: 25→11 points (reflects simpler scope) ### 10. SIMPLIFIED TECHNICAL DESIGNS ✅ - Removed complex class hierarchies - Simple function-based implementations - Direct session field manipulation - No over-abstraction ## Key Conversation Requirements Enforced 1. **60-second threshold** for async mode ✅ 2. **Session-based identification** (no command IDs) ✅ 3. **Two simple APIs** for polling and cancellation ✅ 4. **MCP gets async notification** with clear actions ✅ 5. **Browser waits forever** (no timeout changes) ✅ 6. **Simple session fields** for storage ✅ 7. **Results persist** until next command ✅ 8. **Exact cancellation message** to browser ✅ 9. **Full MCP cancellation authority** ✅ 10. **Sleep command testing** focus ✅ 11. **RAM-only storage** ✅ 12. **No over-engineering** ✅ ## Files Modified ### Epic File - `/Epic_LongRunningCommandSupport.md` - Simplified architecture, removed metrics ### Feature 1: LongRunningCommandPolling - `/01_Feat_LongRunningCommandPolling/Feat_LongRunningCommandPolling.md` - `/01_Feat_LongRunningCommandPolling/01_Story_AsyncModeTransition.md` - `/01_Feat_LongRunningCommandPolling/02_Story_PollingWorkflow.md` - `/01_Feat_LongRunningCommandPolling/03_Story_ResultPersistence.md` (already aligned) ### Feature 2: UniversalCommandCancellation - `/02_Feat_UniversalCommandCancellation/Feat_UniversalCommandCancellation.md` - `/02_Feat_UniversalCommandCancellation/01_Story_MCPCancellationCapability.md` - `/02_Feat_UniversalCommandCancellation/02_Story_BrowserCancellationNotification.md` ### Feature 3: BrowserLongCommandCompatibility - `/03_Feat_BrowserLongCommandCompatibility/Feat_BrowserLongCommandCompatibility.md` - `/03_Feat_BrowserLongCommandCompatibility/01_Story_BrowserInfiniteWait.md` ## Implementation Guidance ### DO ✅ - Use simple setTimeout for 60-second detection - Store results in 6 session fields - Return simple objects from APIs - Test with sleep commands - Send exact cancellation message - Keep browser experience unchanged ### DON'T ❌ - Generate command IDs - Build complex storage systems - Add visual progress indicators - Create metrics collectors - Implement caching layers - Over-abstract with classes - Add features not discussed ## Estimated Timeline (Simplified) - Feature 1: 2 days (was 3-4) - Feature 2: 1 day (was 2-3) - Feature 3: 1 day (was 2) - Testing: 1 day (was 2-3) - **Total: 5 days** (was 9-12) The epic is now properly aligned with the conversation requirements, focusing on simple, straightforward implementation without unnecessary complexity.