Hands-on: Update a Personal Blog Every Day with Codex Mobile

This hands-on tutorial turns a short phone note into one article in a personal blog repository. The example uses Markdown, but the same workflow applies to Astro, Next.js with MDX, Hugo, and Jekyll.

What You Will Build

my-blog/
├── src/
│   └── content/
│       └── blog/
│           └── 2026-06-14-codex-mobile-daily-log.md  # added
└── package.json                                      # unchanged

The goal is one new article file with repository-defined content and link checks passing. Publication is outside this tutorial.

Prepare Today’s Note

Separate facts from interpretation.

Topic: My first day with Codex Mobile
Facts:
- Paired the phone with a Mac by QR code
- Answered an investigation question while away
- Reviewed a diff and test results on the phone
Main points:
- Execution does not happen on the phone itself
- Small tasks are easier to review
Exclude:
- Unverified pricing or future features
- Personal data, device names, and secrets

Step 1: Inspect Blog Conventions

I will add one blog post today. Do not change files yet.
Inspect the three latest posts, article template, content schema,
writing rules, and verification commands. Report:
- Directory and filename convention
- Required frontmatter
- Voice and heading structure
- Existing tag choices
- Safe verification commands
- Locale or index updates that are required

Expected result:

Directory: src/content/blog/...
Required fields: title, slug, date, description, tags
Voice: neutral first person matching existing posts
Checks: content validation and link validation
Additional updates: index or locale pair only when required

Check: The report cites repository files and no file has changed.

Step 2: Design the Article

Use the note below to design an 800-1200 word article.
[paste today's note]

Constraints:
- Match existing voice and frontmatter
- Do not state unverified features, pricing, or availability as fact
- Exclude personal and device-specific information
- Do not add an FAQ section
- Do not change files yet

Check that the title, key point, headings, and conclusion do not repeat the same content.

Check: The design covers one topic and introduces no unsupported fact.

Step 3: Create a Task Branch

Only request a branch when repository policy allows it.

Check for existing uncommitted changes.
If the tree is clean, create `content/daily-codex-mobile-20260614`.
If changes exist, do not modify anything and report them.

Expected result:

Current branch: content/daily-codex-mobile-20260614
Working tree: clean

Check: Confirm the branch and working-tree state. Do not force a branch switch over existing work.

Step 4: Create Only the Article

Create the article from the approved design.
Change only the new article and any index or locale pair required by policy.
Do not change dependencies, UI, configuration, or existing posts.
Report changed files and stop.

Expected diff:

?? src/content/blog/.../2026-06-14-codex-mobile-daily-log.md

Check: Only the expected content files changed. Ask for the reason and source when generated files are required.

Step 5: Review Frontmatter and Body

1. Confirm date and slug
2. Confirm the description accurately summarizes the article
3. Match tags to existing categories
4. Check heading flow
5. Check evidence for links and technical facts
6. Remove secrets, personal data, and local paths

Limit correction scope:

Change only the second section.
Replace wording that implies code runs on the phone with an explanation
that execution occurs on the host. Do not change frontmatter or other sections.

Step 6: Run Safe Verification

Run the repository-defined safe checks required for this article.
Validate frontmatter, content schema, internal links, and locale parity.
Do not build for production, deploy, or push.

Expected result:

Frontmatter/schema: passed
Internal links: passed
Locale parity: passed or not applicable
Production build: not run
Deployment: not run

Check: Commands, successful results, and skipped checks are clearly separated.

Step 7: Review the Final Diff

Review the final diff and report:
- Changed files
- Article summary
- Verification results
- Unverified items
- Human checks needed before publication
Do not commit, push, or publish.

Before publication, inspect the page through a local or trusted preview for layout, images, and links.

Reusable Daily Prompt

Run today's blog update.

Note:
[paste note]

Process:
1. Inspect recent posts, templates, schema, and writing rules
2. Present an article design and stop before implementation
3. After approval, change only the new post and required index or translation
4. Validate frontmatter, links, and content rules
5. Report the diff, checks, and unverified items

Constraints:
- Preserve existing uncommitted changes
- Do not change UI, dependencies, or configuration
- Exclude secrets and personal information
- Do not present unverified information as fact
- Do not build, deploy, or push without approval

Extension Exercises

• Use a draft flag until publication day
• Add image alternative-text checks
• Add broken-link checks to the daily workflow
• Store an article template and writing rules in the repository
• Add an article checklist to the pull request template

Summary

Daily blog updates are small, repeatable tasks that fit Codex Mobile well. A fixed sequence of note, convention inspection, design approval, limited implementation, verification, and diff review keeps quality visible while away.

Next, Advanced Codex Mobile Operations expands the workflow to always-on hosts and SSH environments.

See the references for the external specifications and background sources used on this page.[1][2]

References

1. OpenAI, Codex documentation
2. OpenAI, OpenAI API documentation