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Delete data from raw_data and/or the LanceDB vector database. Use with caution.
These commands permanently delete data and cannot be undone. Make sure you have backups or can re-extract the documentation.

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Commands

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all

Delete all files in both raw_data and LanceDB directories. 
openground nuke all [OPTIONS]

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Options

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--yes
boolean
default:"false"
Skip confirmation prompt.Aliases: -y

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Example

openground nuke all
Output: 
⚠ This will permanently delete ALL data:
  • Raw data: 5 libraries in /home/user/.openground/raw_data
  • Embeddings: 5 libraries in /home/user/.openground/lancedb

ℹ Tip: Run 'openground list-raw-libraries' and 'openground list-libraries' 
  to see what will be deleted.

Are you sure you want to delete ALL data? This cannot be undone! [y/N]: y

✓ Deleted raw data directory: /home/user/.openground/raw_data
✓ Deleted LanceDB directory: /home/user/.openground/lancedb

✓ Deleted all data (5 raw libraries, 5 embedded libraries).

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raw_data

Delete all files in the raw_data directory. 
openground nuke raw_data [OPTIONS]

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Options

​
--yes
boolean
default:"false"
Skip confirmation prompt.Aliases: -y

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Example

openground nuke raw_data
Output: 
⚠ This will permanently delete ALL raw data:
  • 5 libraries in /home/user/.openground/raw_data

ℹ Tip: Run 'openground list-raw-libraries' to see what will be deleted.

Are you sure you want to delete ALL raw data? This cannot be undone! [y/N]: y

✓ Deleted raw data directory: /home/user/.openground/raw_data

✓ Deleted 5 raw libraries.

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embeddings

Delete all files in the LanceDB directory. 
openground nuke embeddings [OPTIONS]

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Options

​
--yes
boolean
default:"false"
Skip confirmation prompt.Aliases: -y

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Example

openground nuke embeddings
Output: 
⚠ This will permanently delete ALL embeddings:
  • 5 libraries in /home/user/.openground/lancedb

ℹ Tip: Run 'openground list-libraries' to see what will be deleted.

Are you sure you want to delete ALL embeddings? This cannot be undone! [y/N]: y

✓ Deleted LanceDB directory: /home/user/.openground/lancedb

✓ Deleted 5 embedded libraries.

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Use Cases

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Complete Reset

Delete everything and start fresh: 
openground nuke all -y

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Free Disk Space (Keep Embeddings)

Delete raw data but keep embeddings: 
openground nuke raw_data -y
Raw data is only needed for re-embedding. Once embedded, you can safely delete it.

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Re-embed Everything

Delete embeddings but keep raw data: 
openground nuke embeddings -y
openground embed mylib  # Re-embed from raw data

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Before Changing Embedding Model

When switching embedding models, you must re-embed: 
# Change model
openground config set embeddings.embedding_backend fastembed
openground config set embeddings.model_name BAAI/bge-small-en-v1.5

# Delete old embeddings
openground nuke embeddings -y

# Re-embed from raw data
openground embed mylib

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Safety Features

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Confirmation Prompts

All commands show:
  • Number of libraries to be deleted
  • Directory paths
  • Tips for checking what will be deleted
You must explicitly confirm unless using --yes.

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Count Before Delete

Before deleting, verify what exists: 
# Check raw libraries
openground list-raw-libraries

# Check embedded libraries
openground list-libraries

# Then delete
openground nuke all

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No Data = No Action

If directories are empty, commands report and exit: 
openground nuke all
Output: 
No data found. Nothing to delete.

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What Gets Deleted

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nuke all

  • Raw data directory: ~/.openground/raw_data/
  • LanceDB directory: ~/.openground/lancedb/
  • Statistics: Tool call statistics (reset to zero)
  • Query caches: Internal query caches

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nuke raw_data

  • Raw data directory: ~/.openground/raw_data/
  • All extracted JSON files

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nuke embeddings

  • LanceDB directory: ~/.openground/lancedb/
  • All vector embeddings
  • Statistics: Tool call statistics (reset to zero)
  • Query caches: Internal query caches

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What Doesn’t Get Deleted

  • Configuration file: ~/.openground/config.json (use openground config reset)
  • Sources file: ~/.openground/sources.json
  • MCP configurations: Agent integration configs

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Recovery

After nuking, you can:
  1. Re-add libraries: 
    openground add langchain -s https://python.langchain.com/sitemap.xml
  2. Re-embed from raw data (if available): 
    openground embed mylib
  3. Restore from backup (if created): 
    cp -r /backup/.openground ~/