Level 8 Practice: Implement Independent Tasks in Parallel
About This Tutorial
This tutorial organizes the scope, deliverable, and completion checks for repository work delegated to Codex.
Parallel work is not simply more simultaneous tasks. Jobs that share files or assumptions create merge conflicts and inconsistent results.
What You Will Complete
You will produce a conflict-aware task split and integrated result. The goal is not the amount of work; it is a reproducible Level 8 delegation boundary and completion check.
Step 1: Set the Boundary
Before handing work to Codex, state the goal, scope, exclusions, and completion criteria. Adapt this prompt to your project.
Split this change into independent parallel tasks. Define owned files, dependencies, completion criteria, and integration order. Do not assign the same file to multiple tasks.Check: Continue only when Codex can restate the scope and unresolved questions before acting.
Step 2: Practice
- Split work into units with separate ownership, such as profile, projects, and tests.
- Assign inputs, owned files, completion criteria, and exclusions to each task.
- Run in worktrees or independent threads, then integrate in a defined order and revalidate.
Keep the scope stable and inspect the output or diff after each stage.
Step 3: Verify Completion
You are done when each task is independently testable, integrated checks pass, and conflict ownership is explicit.
Record the actions performed, supporting evidence, and anything not verified. Also record why work stopped when a condition was not met.
Troubleshooting
Codex exceeded the requested scope
Stop the task and inspect the diff. Add explicit owned files and exclusions to the prompt, then rerun only the approved scope.
Completion is difficult to judge
Replace vague criteria such as “implement it” with observable files, commands, pages, or review results.
Next Step
Continue to Level 9 to expand the delegation boundary by one step.
See the references for the external specifications and background sources used on this page.[1][2][3]