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Marketing Medium to set up AI workflow Generate from Brief

Social Media Content Automation

Source reviewed Updated 2026-07-07

Pulls post ideas from a Google Sheet, generates platform-specific text via AI, publishes to LinkedIn and X, logs the activity.

What it does

You save time by having your social media content created and published to LinkedIn and X automatically from ideas in your Google Sheet. You receive email confirmations once each post is successfully logged and shared across platforms.

Step by step

  1. Set up a time-driven trigger in Google Apps Script to run the automation every morning at 9 AM.
  2. Map the specific column indices for post ideas, LinkedIn text, and Twitter text within the target spreadsheet.
  3. Configure the HTTP POST requests with the correct API endpoints and required authentication headers for both LinkedIn and X.

Where the LLM does the work

  • Prompt the OpenAI model to rewrite a single core idea into two distinct tones suitable for professional networking versus casual microblogging.
  • Instruct the AI to strictly enforce character limits and avoid banned hashtags that might trigger platform filters.
  • Add a system instruction to ensure the generated content includes a clear call-to-action relevant to the original source material.

Watch out for

LinkedIn requires a specific OAuth2 flow for posting, so you must register an app in their developer portal and handle token refreshes manually.
Platform terms of service may prohibit fully automated posting without human review, so consider adding a manual approval step in the spreadsheet.

Tools that fit

Google Sheets Service Content planning and tracking
OpenAI Chat Model LLM Generating tailored content
LinkedIn Service Publishing posts
X (Formerly Twitter) Service Publishing posts
Send Email Service Sending notifications

The agent brief

Everything your agent needs, including the gotchas. Copy it and go.
agent-brief.md
You are helping me build the following AI agent workflow.

## Goal
Social Media Content Automation: Pulls post ideas from a Google Sheet, generates platform-specific text via AI, publishes to LinkedIn and X, logs the activity.

## Specification
- What it does: You save time by having your social media content created and published to LinkedIn and X automatically from ideas in your Google Sheet. You receive email confirmations once each post is successfully logged and shared across platforms.
- Trigger: On a schedule (Scheduled · daily)
- Autonomy: Fully hands-off
- Expected setup effort: about an afternoon
- Tools/services involved:
  - Google Sheets: Content planning and tracking
  - OpenAI Chat Model: Generating tailored content
  - LinkedIn: Publishing posts
  - X (Formerly Twitter): Publishing posts
  - Send Email: Sending notifications

## Known pitfalls, handle each one explicitly in your implementation
1. LinkedIn requires a specific OAuth2 flow for posting, so you must register an app in their developer portal and handle token refreshes manually.
2. Platform terms of service may prohibit fully automated posting without human review, so consider adding a manual approval step in the spreadsheet.

## Reference implementation
https://n8n.io/workflows/3104 (workflow template)
Fetch and inspect this before building. If it matches my stack, adapt it;
if not, rebuild the pattern with my tools.

## Process requirements
1. Before building: ask me which of the listed tools I actually use and
   what my platform is (n8n / Make / code / other). Do not assume.
2. Adapt the pattern to my answers; do not force the reference stack.
3. Address every pitfall above; tell me how you handled each.
4. Provide a test plan I can run before letting this touch real data.
5. Ask before any step that sends messages, modifies data, or spends money.

Source: https://usecasesforagents.com/use-case/social-media-content-automation/ via usecasesforagents.com

Frequently asked questions

Can I use a different Spreadsheet than Google Sheets?

Yes. Google Sheets is only the example spreadsheet in this recipe. The same flow works with Airtable, Baserow and Excel. Swap the spreadsheet connection and keep the rest of the setup as written.

Want this running in your business?

This is what I do. I design and build AI agents like this one, and keep them running. If you want it set up for your team instead of doing it yourself, get in touch.
Get in touch →

Who it's for

Built for marketers who'd rather brief an agent than start from a blank doc.

Also fits E-commerce Operator.

Seen in the wild

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