local-cal/.opencode/context/core/task-management/guides/managing-tasks.md

Guide: Managing Task Lifecycle

Purpose: Step-by-step workflow for JSON-driven task management

Last Updated: 2026-01-11

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Prerequisites

• TaskManager agent available
• Feature folder created in .tmp/tasks/ (at project root)

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Workflow Overview

1. Initiation    → TaskManager creates task.json + subtasks
2. Selection     → Find eligible tasks (deps satisfied)
3. Execution     → Working agent implements task
4. Verification  → TaskManager validates completion
5. Archiving     → Move to completed/ when done

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1. Initiation (TaskManager)

Create feature folder and files:

.tmp/tasks/{feature-slug}/
├── task.json
├── subtask_01.json
├── subtask_02.json
└── subtask_03.json

Validate with: task-cli.ts validate {feature}

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2. Task Selection

Find eligible tasks using CLI:

task-cli.ts next {feature}      # All ready tasks
task-cli.ts parallel {feature}  # Parallelizable only

Selection criteria:

• status == "pending"
• All depends_on tasks have status == "completed"

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3. Execution (Working Agent)

When picking up task:

1. Read subtask JSON
2. Update status:

   {
     "status": "in_progress",
     "agent_id": "coder-agent",
     "started_at": "2026-01-11T14:30:00Z"
   }
   

3. Load context_files (lazy)
4. Implement deliverables
5. Add completion_summary (max 200 chars)

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4. Verification (TaskManager)

After agent signals completion:

1. Check each acceptance_criteria
2. If all pass → Mark completed:

   task-cli.ts complete {feature} {seq} "summary"
   

3. If fail → Keep in_progress, report failures

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5. Archiving

When completed_count == subtask_count:

1. Update task.json: status: "completed"
2. Move folder: .tmp/tasks/{slug}/ → .tmp/tasks/completed/{slug}/

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Status Ownership

Status	Who Sets	When
pending	TaskManager	Initial creation
in_progress	Working agent	Picks up task
completed	TaskManager	After verification
blocked	Either	Dependency/issue found

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CLI Commands Summary

Command	Use Case
status	Quick overview
next	What to work on
parallel	Batch parallel work
deps	Understand blockers
blocked	Identify issues
complete	Mark task done
validate	Health check

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Related

• ../standards/task-schema.md - JSON field reference
• splitting-tasks.md - How to create subtasks
• ../lookup/task-commands.md - Full CLI reference