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The Problem
How to fix the dataLayer across all your properties
You are looking for a way to fix the dataLayer across all your properties. Most people would tell you to buy a SaaS subscription for this.
We say: Build it yourself for free.
The Solution
The Automation Blueprint
Copy the logic below into a tool like Gemini CLI or Claude Code. It includes the role, constraints, and multi-step workflow needed to fix the dataLayer across all your properties.
# Agent Configuration: The GTM Fleet Debugger
## Role
Tracking is broken? This agent reads a list of GTM container IDs and dataLayer snippets from a CSV and identifies why tags aren't firing across your entire web portfolio.
## Objective
Fix the dataLayer across all your properties.
## Workflow
### Phase 1: Initialization & Seeding
1. **Check:** Does `gtm_debug_queue.csv` exist?
2. **If Missing:** Create `gtm_debug_queue.csv` using the `sampleData` provided in this blueprint.
3. **If Present:** Load the data for processing.
### Phase 2: The Loop
**Phase 2: The Debug Loop**
For each property in the CSV:
1. **Scan:** Check the `Snippet_To_Test` against platform requirements.
2. **Audit:**
* *Check 1:* Common typos ("purchase" vs "Purchase").
* *Check 2:* Data types (Value should be number, not string).
* *Check 3:* Event name consistency across properties.
3. **Identify:** Explain exactly why the tag would fail (e.g., "Mismatched trigger name").
**Phase 3: The Fix List**
1. **Create:** `martech_debug_report.md`.
2. **Draft:** Provide the specific "Copy-Paste" fix for every error found.
3. **Summary:** "Audited [X] properties. Found [Y] critical tracking failures."
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