Ssh Doctor

What it does

Example prompts

• “/ssh-doctor”

Requirements

• A credential in OP_SERVICE_ACCOUNT_TOKEN

What it can do on your machine

Read from SKILL.md and the folder at commit 79150cf. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • ssh

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use ssh, which can reach the network depending on how they are called.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names these keys or tokens, usually read from environment variables:

  • OP_SERVICE_ACCOUNT_TOKEN

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Ssh Doctor loads about 1.2k tokens when it runs. Until then it costs about 21 tokens; SKILL.md has 252 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~21

When it runs · the whole SKILL.md, loaded when a task matches

~1.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

• NoteRuns commands with sudoSKILL.md:28

  sudo systemsetup -getremotelogin

• NoteRuns commands with sudoSKILL.md:29

  sudo systemsetup -setremotelogin on

• NoteRuns commands with sudoSKILL.md:30

  sudo launchctl print system/com.openssh.sshd 2>&1 | head -80

• NoteRuns commands with sudoSKILL.md:31

  sudo launchctl kickstart -k system/com.openssh.sshd

• NoteRuns commands with sudoSKILL.md:32

  sudo lsof -nP -iTCP:22 -sTCP:LISTEN

• NoteRuns commands with sudoSKILL.md:42

  sudo sshd -T 2>&1 | egrep -i '^(allowusers|denyusers|allowgroups|denygroups|listenaddress|maxstartups|logingracetime|use

• NoteRuns commands with sudoSKILL.md:43

  sudo egrep -n '^[[:space:]]*(AllowUsers|DenyUsers|AllowGroups|DenyGroups|Match|MaxStartups|LoginGraceTime|ListenAddress|

• NoteRuns commands with sudoSKILL.md:58

  sudo log show --last 30m --predicate 'process == "sshd" OR process == "launchd"' --style compact | tail -160

• NoteRuns commands with sudoSKILL.md:75

  sudo launchctl print system/com.openssh.sshd 2>&1 | egrep 'active count|copy count|state =|last exit code|runs ='

• NoteRuns commands with sudoSKILL.md:77

  sudo lsof -nP -c sshd-session -iTCP 2>/dev/null | head -120

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from steipete/agent-scripts at commit 79150cf, republished under its MIT licence (© steipete). 252 words, ~1,221 tokens.

name

ssh-doctor

description

SSH triage: Remote Login, launchd sshd, pre-auth closes, stale sessions.

ssh -o RequestTTY=no -o RemoteCommand=none HOST 'hostname; id -un'

hostname; id -un; sw_vers
ipconfig getifaddr en0
ipconfig getifaddr en1 2>/dev/null || true
ipconfig getifaddr en7 2>/dev/null || true
sudo systemsetup -getremotelogin
sudo systemsetup -setremotelogin on
sudo launchctl print system/com.openssh.sshd 2>&1 | head -80
sudo launchctl kickstart -k system/com.openssh.sshd
sudo lsof -nP -iTCP:22 -sTCP:LISTEN
nc -vz 127.0.0.1 22
ssh -4 -F /dev/null -o RequestTTY=no -o RemoteCommand=none USER@127.0.0.1 'hostname; id -un'

sudo sshd -T 2>&1 | egrep -i '^(allowusers|denyusers|allowgroups|denygroups|listenaddress|maxstartups|logingracetime|usepam|passwordauthentication|pubkeyauthentication|authenticationmethods)'
sudo egrep -n '^[[:space:]]*(AllowUsers|DenyUsers|AllowGroups|DenyGroups|Match|MaxStartups|LoginGraceTime|ListenAddress|AuthenticationMethods|UsePAM|PasswordAuthentication|PubkeyAuthentication)\b' /etc/ssh/sshd_config /etc/ssh/sshd_config.d/* 2>/dev/null || true

sudo log show --last 30m --predicate 'process == "sshd" OR process == "launchd"' --style compact | tail -160

sudo launchctl print system/com.openssh.sshd 2>&1 | egrep 'active count|copy count|state =|last exit code|runs ='
ps -axo pid,ppid,uid,user,state,lstart,etime,comm,args | awk '/sshd-session:/ && !/awk/ {print}'
sudo lsof -nP -c sshd-session -iTCP 2>/dev/null | head -120

ps -axo pid=,args= | awk '/sshd-session: / && !/awk/ {print $1}' | xargs sudo kill -TERM
sleep 2
ps -axo pid=,args= | awk '/sshd-session: / && !/awk/ {print}'

sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --listapps | grep -i ssh -A2 -B2 || true
sudo pfctl -sr 2>/dev/null | head -80
sudo pfctl -si 2>/dev/null | head -80

ifconfig | awk '/^[a-z0-9]+:/{iface=$1; sub(":","",iface)} iface ~ /^en[0-9]+$/ && /inet / {print iface, $2}'
sudo lsof -nP -iTCP:22 -sTCP:LISTEN

awk 'BEGIN{b=0;e=0;x=0} /BEGIN Codex-managed OP_SERVICE_ACCOUNT_TOKEN/ {b=1} /END Codex-managed OP_SERVICE_ACCOUNT_TOKEN/ {e=1} /^[[:space:]]*(export[[:space:]]+)?OP_SERVICE_ACCOUNT_TOKEN=/ {x=1} END{print "marker_begin", b; print "marker_end", e; print "exact_var", x}' ~/.profile

tmpfile=$(mktemp /tmp/codex-op-token.XXXXXX)
chmod 600 "$tmpfile"
ssh -o RequestTTY=no -o RemoteCommand=none HOST 'awk '\''/^[[:space:]]*(export[[:space:]]+)?OP_SERVICE_ACCOUNT_TOKEN=/ {print; exit}'\'' ~/.profile' > "$tmpfile"
if [ -s "$tmpfile" ]; then
  {
    printf '\n# BEGIN Codex-managed OP_SERVICE_ACCOUNT_TOKEN\n'
    sed -n '1p' "$tmpfile"
    printf '# END Codex-managed OP_SERVICE_ACCOUNT_TOKEN\n'
  } >> ~/.profile
fi
rm -f "$tmpfile"

© steipete, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/ssh-doctor of steipete/agent-scripts.

Open the folder on GitHubat commit 79150cf