Platforms
Windows
Credential Manager storage, its size limit, and case-insensitive names.
Entries go to the Windows Credential Manager as generic credentials
(windows-native-keyring-store). No setup is needed; there are no prompts.
Size limit
Credential Manager allows at most 2560 bytes per secret, and text is stored as UTF-16 (2 bytes per character):
| What | Real limit |
|---|---|
| Password account secret | about 1280 UTF-16 characters |
| Store record or vault secret | about 960 bytes of raw data (Base64 makes it 4/3 larger, then UTF-16 doubles it) |
Larger writes fail with a keyring error: …. Vault keys made by the procedures (65 bytes) fit easily.
Split large data or keep it in an encrypted file and store only its key here.
Names ignore case
Credential names are case-insensitive: App.Token and app.token are the same entry. The plugin's
kp: guard ignores case for this reason.
Where to see them
Control Panel → Credential Manager → Windows Credentials → Generic Credentials, or cmdkey /list.