Model Selection for Tasks & Schedules (MODEL-001)

[vybe]

Summary

Allow users to select which Claude model to use when running tasks and creating/editing schedules. The backend pipe already supports model passthrough (ParallelTaskRequest.model), but neither the frontend nor the scheduler sends it.

Default model: claude-opus-4-5

Preset Model List

• claude-opus-4-5 (default)
• claude-opus-4-6
• claude-sonnet-4-6
• claude-sonnet-4-5
• claude-haiku-4-5
• Custom text input for advanced users

Changes

Backend

• Add model TEXT column to agent_schedules table
• Add model_used TEXT column to schedule_executions table
• Add model field to ScheduleCreate, ScheduleUpdate, ScheduleResponse
• Scheduler service reads schedule.model and passes to agent client
• Scheduler agent client includes model in /api/task payload

Frontend

• Shared ModelSelector.vue combobox component (dropdown + custom text)
• Model selector in TasksPanel above task input
• Model field in SchedulesPanel create/edit form
• Show model_used on execution history rows and ExecutionDetail page
• Persist last-used task model in localStorage

Already Working (no changes needed)

• Agent /api/task endpoint accepts model
• ParallelTaskRequest has model field
• Backend forwards model to agent
• MCP chat_with_agent passes model in parallel mode
• Claude Code CLI --model flag

Spec

docs/requirements/MODEL_SELECTION_TASKS_SCHEDULES.md

[vybe]

Validated and closed. MODEL-001 is fully implemented (2026-03-02):

• ModelSelector.vue shared combobox with 7 presets + custom input
• TasksPanel: model selector with localStorage persistence
• SchedulesPanel: model field in create/edit forms, model badge in list
• Database: migration Event Bus Infrastructure #22 adds model on agent_schedules, model_used on schedule_executions
• Backend/Scheduler: full model passthrough pipeline to agent CLI --model flag
• Audit: model_used recorded and displayed in execution history
• Docs: requirements.md §10.5, feature-flows/model-selection.md, changelog entries
• Bug fixes applied: dropdown filter fix, DB proxy param fix, corrected model IDs