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stack/packages/mosaic/framework/tools/tmux/auto-submit-drafts.sh
enhance c9c07cdeba
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fix(tools/tmux): unique per-invocation paste buffer; track auto-submit-drafts.sh
Upstream the 2026-07-09 live hot-fix from web1: send-message.sh used a fixed
tmux buffer name (__mosaic_send) shared by all concurrent senders on one
server — load-buffer overwrote load-buffer and paste-buffer -d deleted
underneath peers, cross-delivering or dropping messages. Bit the fleet during
the simultaneous restart (standing briefs swapped between sessions). Buffer
name is now unique per invocation (PID + nanoseconds).

Also brings auto-submit-drafts.sh (coordinator draft-flush watchdog, until now
only a loose file in the deployed ~/.config/mosaic/tools/tmux/) under source
control, and extends test-send-message-socket.sh with a concurrency lock:
5 parallel sends to distinct panes, asserting no drop and no cross-delivery.
The lock fails 3/3 runs against the pre-fix script and passes post-fix.

Without this, the next framework redeploy would regress the live fix.
2026-07-09 12:27:13 -05:00

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#!/usr/bin/env bash
# auto-submit-drafts.sh — watchdog for Claude Code panes that receive channel
# messages but leave them as unsubmitted prompt drafts. Intended for Mos only.
set -uo pipefail
TARGET="${1:-mos-claude}"
INTERVAL="${INTERVAL:-2}"
STABLE_SECONDS="${STABLE_SECONDS:-4}"
LOG_PREFIX="[auto-submit-drafts:$TARGET]"
last_prompt=""
first_seen=0
prompt_text() {
tmux capture-pane -t "$TARGET" -p 2>/dev/null | python3 -c '
import sys, re
lines = sys.stdin.read().splitlines()
idx = None
for i in range(len(lines)-1, -1, -1):
if "" in lines[i]:
idx = i
break
if idx is None:
raise SystemExit
parts = []
after = lines[idx].split("", 1)[1]
parts.append(after)
for line in lines[idx+1:]:
# Stop at Claude Code separator/border lines.
if "─" in line or "╰" in line or "╭" in line:
break
s = line.replace("\u00a0", " ")
s = re.sub(r"[\x00-\x1f\x7f]", "", s).strip()
if s:
parts.append(s)
text = " ".join(parts).replace("\u00a0", " ")
text = re.sub(r"[\x00-\x1f\x7f]", "", text).strip()
print(text)
'
}
while true; do
if ! tmux has-session -t "$TARGET" 2>/dev/null; then
echo "$LOG_PREFIX target missing; waiting" >&2
sleep "$INTERVAL"
last_prompt=""
first_seen=0
continue
fi
current="$(prompt_text || true)"
now="$(date +%s)"
if [[ -z "$current" ]]; then
last_prompt=""
first_seen=0
sleep "$INTERVAL"
continue
fi
if [[ "$current" != "$last_prompt" ]]; then
last_prompt="$current"
first_seen="$now"
sleep "$INTERVAL"
continue
fi
age=$(( now - first_seen ))
if (( age >= STABLE_SECONDS )); then
echo "$LOG_PREFIX submitting stable draft after ${age}s: ${current:0:120}" >&2
tmux send-keys -t "$TARGET" C-j
sleep 0.8
tmux send-keys -t "$TARGET" C-m
sleep 2
last_prompt=""
first_seen=0
else
sleep "$INTERVAL"
fi
done