sneak
cac775c100
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The command no longer sends a shell script to the host. It fetches ~/.ssh/authorized_keys with the system sftp in batch mode, adds the key line here, and writes the file back in a second session: mkdir and chmod on ~/.ssh, put to authorized_keys.keyfunc-<random>, chmod 600, then rename over authorized_keys. A run that adds a line connects twice; one that finds the line there connects once and stops. A failed step leaves everything as it is and names the uploaded file. sftp echoes the commands it runs, so all of its output goes to standard error and the tool prints only "added" or "already present". Batch mode cannot prompt for a password; the README says so. Model: opus-5