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External Context is available on all plans. Contact us for higher document limits.

Overview

External Context allows you to link Google Docs and Google Sheets to your Sources or Source Groups. When AI generates pulse summaries, it uses this additional context to provide more relevant and informed analysis. For example, if you have a marketing strategy document or a definitions spreadsheet, linking it as external context helps the AI understand your data better and generate more actionable insights.

How it Works

  1. Link Documents: Connect Google Docs or specific Google Sheets tabs to a Source or Source Group
  2. AI Reads Context: When generating pulse summaries, the AI incorporates this external context
  3. Better Insights: Summaries are more relevant because the AI understands your business context

Document Limits

Each Source or Source Group can have up to 3 external context documents linked.
PlanDocuments per Source/Group
All Plans3
Need More?Contact Us
Need more than 3 documents per source? Contact us at support@chartcastr.com to discuss your requirements.

Supported Document Types

ProviderDocument Types
Google SheetsIndividual sheet tabs within a spreadsheet
Google DocsFull documents
NotionComing soon
ConfluenceComing soon
When linking a Google Sheets file, you select a specific sheet tab rather than the entire spreadsheet. This ensures the AI receives focused, relevant context.

Linking External Context

From Settings

  1. Go to SettingsSources section
  2. Click the External Context card
  3. Click Manage next to Google Drive
  4. Click Link Context File
  5. Select Single Source or Source Group as your target
  6. Search and select a file from Google Drive
  7. For spreadsheets, select the specific sheet tab
  8. Click Link Context File to save

From a Source Page

  1. Navigate to a Source’s detail page
  2. Find the External Context Documents section
  3. Click + Add
  4. Follow the same process as above (Source will be pre-selected)

Assignment Options

Documents can be assigned to:
  • Single Source: The context applies only to pulses from that specific source
  • Source Group: The context applies to all sources within the group
When viewing a Source’s external context, you’ll see both:
  • Documents attached directly to that source (“Direct” badge)
  • Documents inherited from any groups the source belongs to (“via Group Name” badge)

Best Practices

Link documents that directly relate to the data being analyzed. A glossary of metric definitions or a strategy document works better than a general company overview.
If multiple sources share the same business context (e.g., all marketing metrics), link the context document to a Source Group rather than each individual source.
When linking spreadsheets, choose the specific tab that contains relevant definitions or context. This keeps the AI focused on pertinent information.

Managing External Context

Viewing Documents

All linked documents are visible in:
  • The External Context card in Settings
  • The Source detail page (showing both direct and inherited documents)

Removing Documents

Click the trash icon next to any document to remove it. Documents inherited from Source Groups must be managed at the group level.

Reassigning Documents

To move a document from one Source to another, remove it and re-add it to the new target.

Troubleshooting

Each target (Source or Source Group) can have up to 3 documents. Remove existing documents or contact us for increased limits.
Ensure you’ve connected your Google account and the file is accessible. Try searching by name or scroll through recent files.
External context is read at the time of pulse generation. Changes to linked documents will be reflected in the next pulse.

Request Higher Limits

Need more than 3 documents per source? Let us know your requirements.