The README now gives the child mnemonic keyfunc prints for the abandon ... about test mnemonic at index 0, checked by the README vectors test; the BIP-85 specification vector stays, marked as starting from a master key keyfunc cannot take. It also says ssh install needs the host key in known_hosts already, and how to get round that. ssh install now also lists ~/.ssh/. on its first connection and refuses, before any upload, a ~/.ssh it can read but not enter, which sftp shows as empty; a file where ~/.ssh belongs is refused the same way.
Model: opus-5-5
Co-authored-by: clawbot <sneak+clawbot@sneak.cloud>
The first sftp session now lists .ssh before fetching authorized_keys. The file reads as empty only when sftp reports .ssh itself as missing, or the listing succeeded and the file is reported missing. A directory or file that is there but cannot be read fails the run and nothing is written, so no existing authorized_keys is replaced by content that was not built from what was read. An .ssh that already exists keeps its mode; the directory is made and set to 0700 only when none was found. The README describes the rule and states batch mode's limit: a key or an agent must authenticate.
Model: opus-4-8 (implementation); fable-5-1 (summary)
ssh install no longer runs a command on the host. It reads .ssh/authorized_keys over sftp, takes the empty reading only from sftp's own message about that path, appends the derived key locally when it is not already present, uploads the result beside the file with mode 0600 and renames it over the original. Any other failure prints what sftp said, writes nothing and exits 1. sftp batch mode disables password prompts, so a key or agent is required; a directory the owner cannot enter reads as a host with no file, which README.md states.
Model: opus-5 (implementation); fable-5-1 (landing)