feat(page-signal): route pages through a dedicated Signal pager account

Paging never actually reached the phone before. signal-cli was registered as my primary number, so a page was that account messaging itself, and Signal mobile doesn't push-notify a self-message. I registered signal-cli with a separate Google Voice number (profile "Claude Pager") and pointed everything at it. page-signal now sends from that account to my Signal account by default, so a page lands as a normal third-party message and rings the phone.

The old --note-to-self default is gone, since note-to-self on the pager account wouldn't reach me. Sender and default recipient now come from PAGE_SIGNAL_ACCOUNT and PAGE_SIGNAL_TO with baked-in defaults. The send command pins the sender with -a, and --to also accepts a Signal account UUID, since my account hides its phone number. servers.json points signal-mcp at the new number. Verified end-to-end: live sends from the pager account notified the phone, and signal-mcp shows connected.

2 files changed, 16 insertions, 12 deletions

diff --git a/claude-templates/.ai/workflows/page-signal.org b/claude-templates/.ai/workflows/page-signal.org
index a772603..e5d192f 100644
--- a/claude-templates/.ai/workflows/page-signal.org
+++ b/claude-templates/.ai/workflows/page-signal.org
@@ -6,9 +6,9 @@
 
 Send Craig a Signal message via =page-signal= when desktop notifications won't reach him. Signal fires cross-device, so a page arrives on his phone even when he's away from the desk. The wrapper lives at =~/.local/bin/page-signal= (rulesets-installed; symlinked from =claude-templates/bin/page-signal=).
 
-Defaults to =--note-to-self= for safety. Outbound (paging another contact) requires an explicit =--to <+number>= every call. No defaults, no batch.
+Pages Craig's Signal account by default, sent from a dedicated pager account. Override the recipient with =--to <+number-or-uuid>=. The sender account and default recipient come from =PAGE_SIGNAL_ACCOUNT= and =PAGE_SIGNAL_TO=, both with built-in defaults baked into the wrapper.
 
-*Known limitation (2026-05-29):* =signal-cli= is currently registered with Craig's primary number, so messages from it appear as "you sending from a linked device" rather than as an incoming message from a third party. Signal's mobile clients do not fire push notifications for these. Pages land in the conversation but don't ring the phone. The fix is to register =signal-cli= with a separate number (Craig's Google Voice number is the pending plan, see todo.org TODO scheduled 2026-05-29). Until that registration lands, this workflow is best used for *desktop-visible* paging (the notify wrapper, status outputs) rather than for reaching Craig cross-device. The wrapper itself works correctly; only the notification routing is awaiting the second-account registration.
+*Notification routing (resolved 2026-06-02):* =signal-cli= is registered with a dedicated Google Voice number (profile "Claude Pager"), separate from Craig's primary Signal account. A page travels from that account to Craig's Signal account, so it arrives as a normal incoming message from a third party and fires a mobile push notification. The earlier limitation — a primary-number account messaging itself, which Signal mobile won't notify on — no longer applies now that the sender is a distinct account. The literal sender number and default recipient (Craig's Signal account UUID) live in =page-signal= and =mcp/servers.json=.
 
 * When to Use This Workflow
 
diff --git a/claude-templates/bin/page-signal b/claude-templates/bin/page-signal
index 5a87c67..ef64258 100755
--- a/claude-templates/bin/page-signal
+++ b/claude-templates/bin/page-signal
@@ -2,18 +2,20 @@
 #
 # page-signal — wrap signal-cli send for paging Craig via Signal.
 #
-# Defaults to --note-to-self for safety. Outbound (to another contact)
-# requires an explicit --to <+number> on every call. No defaults, no batch.
+# Sends from a dedicated pager account to Craig's Signal account by
+# default. Override the recipient with --to <+number-or-uuid>.
 #
 # Usage:
-#   page-signal "message"                  # note-to-self
+#   page-signal "message"                  # page Craig (default recipient)
 #   page-signal --file path "message"      # with attachment
-#   page-signal --to +15551234567 "msg"    # outbound (explicit recipient)
+#   page-signal --to +15551234567 "msg"    # override recipient (number or UUID)
 #   page-signal --quiet "message"          # suppress success output
 #   page-signal --json "message"           # structured output (timestamp + status)
 #   echo "msg" | page-signal               # message from stdin (no positional)
 #
-# Requires signal-cli installed and registered with an account.
+# Sender account and default recipient come from PAGE_SIGNAL_ACCOUNT and
+# PAGE_SIGNAL_TO; both have built-in defaults below. Requires signal-cli
+# installed and registered with the sender account.
 #
 # Use this when desktop notifications won't reach the user — page-signal
 # fires cross-device. For routine completions and periodic status pings,
@@ -25,11 +27,12 @@ set -euo pipefail
 quiet=0
 json=0
 file=
-recipient_args=(--note-to-self)
+account="${PAGE_SIGNAL_ACCOUNT:-+15045173983}"
+recipient_args=("${PAGE_SIGNAL_TO:-b1b5601e-6126-47f8-afaa-0a59f5188fde}")
 message=
 
 usage() {
-    sed -n '3,21p' "$0" | sed 's/^# \{0,1\}//'
+    sed -n '3,23p' "$0" | sed 's/^# \{0,1\}//'
 }
 
 while [ "$#" -gt 0 ]; do
@@ -53,10 +56,11 @@ while [ "$#" -gt 0 ]; do
             shift 2
             ;;
         --to)
-            [ "$#" -ge 2 ] || { echo "page-signal: --to needs a +E.164 number" >&2; exit 2; }
+            [ "$#" -ge 2 ] || { echo "page-signal: --to needs a +E.164 number or a Signal account UUID" >&2; exit 2; }
             case "$2" in
                 +[0-9]*) ;;
-                *) echo "page-signal: --to expects +E.164 (e.g. +15551234567)" >&2; exit 2 ;;
+                [0-9a-fA-F]*-[0-9a-fA-F]*-[0-9a-fA-F]*) ;;
+                *) echo "page-signal: --to expects +E.164 (e.g. +15551234567) or a Signal account UUID" >&2; exit 2 ;;
             esac
             recipient_args=("$2")
             shift 2
@@ -91,7 +95,7 @@ if [ -z "$message" ]; then
 fi
 
 # Build the send command.
-cmd=(signal-cli send -m "$message")
+cmd=(signal-cli -a "$account" send -m "$message")
 if [ -n "$file" ]; then
     cmd+=(-a "$file")
 fi