Known limits & rough edges
A candid list of the things Edmund doesn't do well yet, and what to do about each one.
EveryoneEdmund is built and improved continuously, so this list describes its state as of mid-2026. Some features are early, some inputs aren’t handled yet, and a few actions can’t be undone. None of these is a secret — knowing them up front saves you time. Each item below says what to expect and where to read more.
PLC programs are an alpha feature
Edmund can take in PLC programs, but the feature is still alpha. There is no deep drill-in view yet, so you can’t open a routine, follow a tag through the logic, or inspect a block the way you can with a document. Treat what’s there as a preview.
What to do: rely on documents and data sources for anything you need to act on today, and check PLC programs for what the alpha currently shows.
Some documents fail to index
Edmund reads the text inside a document. A scanned or image-only PDF has no text layer to read, so indexing fails and the document shows No text instead of Indexed. A document in that state won’t appear in answers, because there’s nothing for Edmund to cite.
What to do: run the file through OCR to add a text layer, or upload a version that already contains selectable text, then re-add it. See Documents for how to spot and fix this.
Database SQL runs unsanitised
When you connect a data source, Edmund writes SQL to answer your questions and runs it directly against the database — it does not check first that the statement only reads. A generated query could in principle change or delete data.
Connect every data source with a read-only database user. That one choice contains the blast radius: even a bad query can read, but never harm, your data. Full instructions are in Data sources & SQL safety.
Deleting is permanent
Deleting a project or a document is permanent. There is no trash or restore — once it’s gone, it’s gone, along with what depended on it.
Before you delete a project or document, make sure you have the original files elsewhere and that no one still needs the answers tied to it.
Where to go next
For how the pieces fit together, see Core concepts. To set up a plant cleanly from the start, see Admin: set up your plant, or return to the documentation overview.
