## Code Review - Ticket #94: Part 2 - Agent Session Logs ### Summary PASS - All acceptance criteria met. Complete persistent terminal log storage system with two new models, REST API for log ingestion, MCP tools for querying, and 7-day retention cleanup. ### Files Changed - 15 files (+686/-138 lines) - 2 new models (AgentSession, AgentTerminalLog) - 2 new migrations with proper indexes - AgentSessionsController with start/ingest/end/show endpoints - 2 new MCP tools (get_terminal_logs, list_agent_sessions) - CleanupOldTerminalLogsJob with Solid Queue scheduling - Comprehensive test coverage (31 examples) ### Acceptance Criteria Verification #### 1. AgentSession and AgentTerminalLog Models ✓ **AgentSession (63 lines):** - Fields: agent_id (FK), agent_identifier, started_at, ended_at, status (running/completed/failed), ticket_id - AASM state machine with running → completed/failed transitions - `has_many :terminal_logs` with `dependent: :destroy` - Scopes: running, completed, failed, recent, for_agent, for_ticket - `#duration` method calculates session length - `#add_log` helper creates terminal log entries **AgentTerminalLog (22 lines):** - Fields: agent_session_id (FK), timestamp (bigint), output_line (text), line_type (stdout/stderr), ansi (boolean) - Belongs to agent_session - Scopes: chronological, reverse_chronological, with_ansi, without_ansi, stdout, stderr - Delegates agent, agent_identifier, ticket_id to session #### 2. Log Storage from agent-bridge to Rails ✓ **API Endpoints (AgentSessionsController):** - `POST /api/v1/agent_sessions/start_session` - Creates new session - `POST /api/v1/agent_sessions/:id/ingest` - Batch or single log ingestion - `POST /api/v1/agent_sessions/:id/end_session` - Marks session complete/failed - Internal auth via `X-Terminal-Internal` or API key - Supports both batch (`logs[]`) and single (`line`) ingestion **Agent Model:** - Added `has_many :agent_sessions, dependent: :destroy` #### 3. Scheduled Cleanup Job (7 Day Retention) ✓ **CleanupOldTerminalLogsJob (34 lines):** - `DEFAULT_RETENTION_DAYS = 7` - Deletes terminal logs older than retention period using `where("created_at < ?")` - Cleans up empty sessions (no logs) with `where.missing(:terminal_logs)` - Returns hash with deleted counts - Configurable via parameter **Solid Queue Schedule (recurring.yml):** - Runs daily at 2am: `schedule: every day at 2am` - Args: `7` for 7-day retention - Configured for both development and production #### 4. MCP Tool to Retrieve Historical Logs ✓ **New MCP Tools in mcp_controller.rb:** 1. `get_terminal_logs`: - Parameters: agent_id, ticket_id, session_id, status, limit (100), include_session_info - If session_id specified: returns logs from that specific session - Otherwise: filters by agent/ticket/status and returns matching logs - Returns formatted logs with timestamp, line, line_type, ansi 2. `list_agent_sessions`: - Parameters: agent_id, ticket_id, status, limit (20) - Returns session metadata without full logs - Includes: id, agent_id, agent_identifier, ticket_id, status, started_at, ended_at, duration, log_count ### Additional Quality Observations **Migrations:** - Proper foreign key constraints - Indexes on: agent_identifier, status, started_at, ticket_id (sessions) - Indexes on: timestamp, created_at (logs) - Uses `bigint` for timestamp to handle Unix millis **Database Schema:** - Proper `t.timestamps` with `null: false` defaults - Text type for output_line (no length limit) - Boolean with `default: false, null: false` for ansi **AASM Transitions:** - Auto-sets `ended_at` on complete/fail events - Prevents invalid state transitions **API Design:** - Flexible authentication (internal header OR API key) - Batch ingestion support for performance - Returns session_id on start for tracking - Includes duration calculation on session end ### Code Quality - Clean model associations with proper dependent: :destroy - Comprehensive validations (presence, inclusion) - Useful scopes for common queries - Proper test coverage (31 examples, all passing) - Handles both batch and single log ingestion - Proper HTTP status codes (201 for create, 200 for update, 404 for not found) ### No Issues Found No bugs, security issues, or code quality problems identified. Ready for production use with consideration for database volume at high terminal output rates.