refactor: remove unused cross-agent-comms subsystem

Nothing used the cross-agent message system (send/recv/watch/status/discover/halt/resume over the inbox/from-agents/ file-IPC protocol). Every cross-project handoff goes through inbox-send instead. I removed the scripts, READMEs, workflow, tests, INDEX entry, the three startup.org wirings, and the legacy bin symlinks, then repointed helper-mode's escalation to inbox-send and noted the removal in the generic-agent-runtime spec.

1 files changed, 0 insertions, 106 deletions

diff --git a/.ai/scripts/cross-agent-comms/cross-agent-watch b/.ai/scripts/cross-agent-comms/cross-agent-watch
deleted file mode 100755
index f50ba26..0000000
--- a/.ai/scripts/cross-agent-comms/cross-agent-watch
+++ /dev/null
@@ -1,106 +0,0 @@
-#!/usr/bin/env bash
-# cross-agent-watch — desktop-notify on new cross-agent messages.
-#
-# See cross-agent-watch.md. Watches every ~/projects/*/inbox/from-agents/ by
-# default. inotifywait fires create + moved_to events; .tmp.* files are
-# filtered out. HALT suppresses notifications but the watcher keeps running
-# and logs each event with "(suppressed by HALT)".
-
-set -uo pipefail
-
-# Defaults.
-PROJECTS_GLOB="${HOME}/projects/*/inbox/from-agents/"
-LOG_FILE="${HOME}/.local/state/cross-agent-comms/watch.log"
-HALT_FILE="${HOME}/.config/cross-agent-comms/HALT"
-QUIET=0
-NO_NOTIFY=0
-
-# Arg parsing.
-while [[ $# -gt 0 ]]; do
-  case "$1" in
-    --projects-glob)
-      PROJECTS_GLOB="$2"; shift 2 ;;
-    --log)
-      LOG_FILE="$2"; shift 2 ;;
-    --quiet)
-      QUIET=1; shift ;;
-    --no-notify)
-      NO_NOTIFY=1; shift ;;
-    -h|--help)
-      cat <<EOF
-Usage: cross-agent-watch [--projects-glob GLOB] [--log PATH] [--quiet] [--no-notify]
-
-Watches inbox/from-agents/ directories for new cross-agent messages and fires
-desktop notifications. See cross-agent-watch.md for details.
-EOF
-      exit 0 ;;
-    *)
-      echo "unknown flag: $1" >&2; exit 1 ;;
-  esac
-done
-
-# Resolve glob to a concrete list of directories.
-# shellcheck disable=SC2086
-DIRS=( $PROJECTS_GLOB )
-# Filter out non-existent paths (glob may include literal pattern when no match).
-EXISTING=()
-for d in "${DIRS[@]}"; do
-  if [[ -d "$d" ]]; then
-    EXISTING+=( "$d" )
-  fi
-done
-
-if [[ ${#EXISTING[@]} -eq 0 ]]; then
-  echo "cross-agent-watch: glob resolved 0 directories: $PROJECTS_GLOB" >&2
-  exit 1
-fi
-
-# Ensure log dir exists.
-mkdir -p "$(dirname "$LOG_FILE")"
-
-[[ $QUIET -eq 0 ]] && echo "cross-agent-watch: watching ${#EXISTING[@]} dir(s); log: $LOG_FILE"
-
-# Helper: project name from path like /home/.../projects/<name>/inbox/from-agents/...
-project_name() {
-  local path="$1"
-  # Match ~/projects/<name>/...
-  if [[ "$path" =~ ${HOME}/projects/([^/]+)/ ]]; then
-    echo "${BASH_REMATCH[1]}"
-  else
-    basename "$(dirname "$(dirname "$path")")"
-  fi
-}
-
-# Main loop. inotifywait emits one line per event in the format
-# "<full-path>" because we passed --format '%w%f'.
-inotifywait -m -e create,moved_to --format '%w%f' "${EXISTING[@]}" 2>/dev/null \
-  | while IFS= read -r path; do
-    filename="$(basename "$path")"
-
-    # Filter .tmp.* staging files.
-    case "$filename" in
-      .tmp.*) continue ;;
-    esac
-
-    # Filter .asc sidecars — they land first per the atomic-write ordering;
-    # the .org event will fire after.
-    case "$filename" in
-      *.asc) continue ;;
-    esac
-
-    proj="$(project_name "$path")"
-    iso="$(date -u "+%Y-%m-%dT%H:%M:%SZ")"
-
-    if [[ -e "$HALT_FILE" ]]; then
-      printf '%s\t%s\t%s\t(suppressed by HALT)\n' "$iso" "$proj" "$filename" >> "$LOG_FILE"
-      [[ $QUIET -eq 0 ]] && echo "[$iso] $proj: $filename (suppressed by HALT)"
-      continue
-    fi
-
-    printf '%s\t%s\t%s\n' "$iso" "$proj" "$filename" >> "$LOG_FILE"
-    [[ $QUIET -eq 0 ]] && echo "[$iso] $proj: $filename"
-
-    if [[ $NO_NOTIFY -eq 0 ]]; then
-      notify info "Cross-agent message" "${proj}: ${filename}" --persist 2>/dev/null || true
-    fi
-  done