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Level 7 Practice: Verify the UI with Browser and Connector Tools

About 5 minutes

Target audience: Readers who want to practice the delegation boundary and completion standard for Codex Level 7
Prerequisites: Completion of Level 6

For the concepts and completion standards, first read Codex Levels 0-10.

Passing tests cannot fully prove responsive layout, link states, or external data. Level 7 uses external tools with explicit purpose and permission boundaries.

You will produce a validation record with evidence beyond code. The goal is not the amount of work; it is a reproducible Level 7 delegation boundary and completion check.

Before handing work to Codex, state the goal, scope, exclusions, and completion criteria. Adapt this prompt to your project.

Inspect the main local pages in a browser. Check desktop and mobile widths, keyboard use, link states, and console errors. Report issues by page with reproduction steps.

Check: Continue only when Codex can restate the scope and unresolved questions before acting.

  1. Start the local preview and define URLs and viewport sizes to inspect.
  2. Check key pages, keyboard navigation, links, and narrow layouts in a browser.
  3. Begin connectors in read-only mode and separate retrieved facts from inference.

Keep the scope stable and inspect the output or diff after each stage.

You are done when URLs, conditions, results, and unverified areas are recorded and tied back to the code change.

Record the actions performed, supporting evidence, and anything not verified. Also record why work stopped when a condition was not met.

Stop the task and inspect the diff. Add explicit owned files and exclusions to the prompt, then rerun only the approved scope.

Replace vague criteria such as “implement it” with observable files, commands, pages, or review results.

Continue to Level 8 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]

  1. Codex prompting
  2. Custom instructions with AGENTS.md
  3. Codex security
Quiz