remove D-Bus session management, 9P is the only control plane

- Remove OperationalModel function and OpModel prompt layer (dead code)
- Update session-9p.md: remove D-Bus preference mention
- Update desktop file: remove X-DBUS-* entries
- Update systemd service: remove dbus.service dependency
- Rewrite route, process_output, process_signal tools to use 9P

D-Bus is still used for:
- Desktop notifications (org.freedesktop.Notifications) for elevation prompts
- KDE tools (gui_windows, etc.) talking to KWin - not ollie's D-Bus

data/prompts/session-9p.md

@@ -1,6 +1,6 @@
 # 9P Operational Model
 
-Your world model is a 9P filesystem served by olliesrv. Your session ID is `${OLLIE_SESSION_ID}`. Always prefer the 9P filesystem over D-Bus.
+Your world model is a 9P filesystem served by olliesrv. Your session ID is `${OLLIE_SESSION_ID}`.
 
 Access 9P files using the `ollie-9p` command (which auto-discovers the server via `$NAMESPACE` and your identity via `$OLLIE_UNAME`).
 

data/services/systemd/ollie.service

@@ -1,7 +1,5 @@
 [Unit]
 Description=Ollie server daemon (olliesrv)
-After=dbus.service
-Requires=dbus.service
 
 [Service]
 Type=simple

data/services/xdg-autostart/org.ollie.olliesrv.desktop

@@ -2,10 +2,8 @@
 Type=Application
 Name=Ollie Server
 GenericName=AI Agent 9P Server
-Comment=9P server for Ollie AI agent sessions (includes embedded D-Bus adapter)
+Comment=9P server for Ollie AI agent sessions
 Exec=olliesrv
 Icon=ollie
 Terminal=false
 Categories=Utility;
-X-DBUS-StartupType=unique
-X-DBUS-ServiceName=org.ollie.SessionManager

data/tools/process_output

@@ -18,14 +18,17 @@ source "${OLLIE_TOOLS_PATH:-$(dirname "$0")}/_lib/args.sh"
 pid=$(arg_require "pid")
 session="${OLLIE_SESSION_ID:?OLLIE_SESSION_ID not set}"
 
-result=$(gdbus call --session --dest org.ollie.SessionManager \
+# Find agent (use first agent in session)
-  --object-path /org/ollie/SessionManager \
+agent=$(ollie-9p ls "session/$session/agent" 2>/dev/null | grep -v '^new$' | head -1)
-  --method org.ollie.SessionManager.GetDetachedOutput "$session" "$pid" 2>&1)
+[ -z "$agent" ] && { echo "error: no agent in session" >&2; exit 1; }
 
-result=$(echo "$result" | sed "s/^('//;s/',)$//")
+result=$(ollie-9p read "session/$session/agent/$agent/proc/$pid" 2>&1) || {
+    echo "(no output captured yet)"
+    exit 0
+}
 
 if [ -z "$result" ]; then
     echo "(no output captured yet)"
 else
-    echo -e "$result"
+    echo "$result"
 fi

data/tools/process_signal

@@ -18,8 +18,21 @@ pid=$(arg_require "pid")
 signal=$(arg_get "signal" "TERM")
 session="${OLLIE_SESSION_ID:?OLLIE_SESSION_ID not set}"
 
-dbus-send --session --dest=org.ollie.SessionManager --type=method_call --print-reply \
+# Find agent (use first agent in session)
-  /org/ollie/SessionManager org.ollie.SessionManager.SignalDetached \
+agent=$(ollie-9p ls "session/$session/agent" 2>/dev/null | grep -v '^new$' | head -1)
-  "string:$session" "int32:$pid" "string:$signal" 2>&1 | grep -q 'boolean true' && \
+[ -z "$agent" ] && { echo "error: no agent in session" >&2; exit 1; }
-  echo "Signal $signal sent to PID $pid" || \
+
-  { echo "Failed to signal PID $pid" >&2; exit 1; }
+proc_path="session/$session/agent/$agent/proc/$pid"
+
+case "$signal" in
+    TERM|KILL)
+        # Remove the proc file to signal termination
+        ollie-9p rm "$proc_path" 2>/dev/null && \
+            echo "Signal $signal sent to PID $pid" || \
+            { echo "Failed to signal PID $pid (process may have already exited)" >&2; exit 1; }
+        ;;
+    *)
+        echo "error: unsupported signal: $signal (use TERM or KILL)" >&2
+        exit 1
+        ;;
+esac

data/tools/route

@@ -15,21 +15,8 @@ set -euo pipefail
 
 source "${OLLIE_TOOLS_PATH:-$(dirname "$0")}/_lib/args.sh"
 
-SERVICE="org.ollie.SessionManager"
-OBJ="/org/ollie/SessionManager"
-IFACE="org.ollie.SessionManager"
-
 die() { echo "error: $1" >&2; exit 1; }
 
-dbus_call() {
-    dbus-send --session --dest=$SERVICE --type=method_call --print-reply \
-        $OBJ "$IFACE.$1" "${@:2}" 2>/dev/null
-}
-
-dbus_string() {
-    dbus_call "$@" | awk -F'"' '/string "/{print $2; exit}'
-}
-
 [ -z "${OLLIE_SESSION_ID:-}" ] && die "OLLIE_SESSION_ID not set (route must run inside a session)"
 
 instruction=$(arg_require "instruction")
@@ -45,7 +32,7 @@ esac
 if [ -n "$backend_override" ]; then
     BACKEND="$backend_override"
 else
-    parent_config=$(dbus_string GetConfig string:"$OLLIE_SESSION_ID")
+    parent_config=$(ollie-9p read "session/$OLLIE_SESSION_ID/cfg" 2>/dev/null || echo "")
     BACKEND=$(printf '%s\n' "$parent_config" | grep -m1 '^backend=' | cut -d= -f2-)
     BACKEND="${BACKEND:-${OLLIE_BACKEND:-openrouter}}"
 fi
@@ -71,19 +58,18 @@ esac
 id="route-${tier}-$(date +%s%N)-$$"
 [ -n "$OLLIE_SESSION_ID" ] && id="${OLLIE_SESSION_ID}__${id}"
 
-session_id=$(dbus_string CreateSession \
+# Create session via 9P
-    string:"$(pwd)" string:"$BACKEND" string:"$MODEL" string:"$agent" string:"" string:"")
+session_id=$(printf 'name=%s\ncwd=%s\nbackend=%s\nmodel=%s\nagent=%s\n' \
+    "$id" "$(pwd)" "$BACKEND" "$MODEL" "$agent" | ollie-9p write session/new 2>&1)
 
 [ -z "$session_id" ] && die "failed to create session"
 
-dbus_call RenameSession string:"$session_id" string:"$id" > /dev/null 2>&1
-
 prompt="[parent_session_id=${OLLIE_SESSION_ID}]
 [session_id=${id}]
 
 Complete the following task. Read code, reason about implementation, and stay within scope.
 
-When finished, report your result back to the parent session using PeerSubmit.
+When finished, report your result back to the parent session.
 Format:
 
 [from=${id}]
@@ -100,5 +86,9 @@ After reporting the result, STOP. One report, then stop.
 TASK:
 ${instruction}"
 
-dbus_call Submit string:"$session_id" string:"$prompt" > /dev/null 2>&1 || die "failed to submit prompt"
+# Find agent in new session and submit prompt
+new_agent=$(ollie-9p ls "session/$id/agent" 2>/dev/null | grep -v '^new$' | head -1)
+[ -z "$new_agent" ] && die "no agent created in session"
+
+echo "$prompt" | ollie-9p write "session/$id/agent/$new_agent/prompt" 2>&1 || die "failed to submit prompt"
 printf 'session=%s\nbackend=%s\nmodel=%s\ntier=%s\n' "$id" "$BACKEND" "$MODEL" "$tier"

prompts/prompts.go

@@ -33,14 +33,6 @@ Tools run in a sandbox with restricted filesystem access. Unexpected permission
 		cwd, platform, date, gitStr, sandbox)
 }
 
-// OperationalModel returns the appropriate operational model text based on flags.
-func OperationalModel(enable9P, enableDBus bool, envVars map[string]string) string {
-	_ = enable9P
-	_ = enableDBus
-	_ = envVars
-	return ""
-}
-
 // ResolveSystemPrompt expands env vars in overridePath, then tries to read the
 // file from the filesystem. If the file doesn't exist, the embedded default is
 // returned.

session/persist.go

@@ -268,7 +268,7 @@ func restoreMultiAgentSession(ps *PersistedSession) (*RestoredSession, error) {
 			newToolServer = infra.NewToolServer
 		}
 
-		rt := agent.BuildRuntime(cfg, toolsConn, cwd, env, layers.SystemPrompt, layers.OpModel, layers.EnvBlock)
+		rt := agent.BuildRuntime(cfg, toolsConn, cwd, env, layers.SystemPrompt, layers.EnvBlock)
 		rt.Backend = be
 
 		// Create history from messages

session/registry.go

@@ -372,7 +372,7 @@ func CreateAgent(sessName string, args []string) (*agent.Agent, error) {
 	// Build runtime
 	env := []string{"OLLIE_SESSION_ID=" + sessID, "OLLIE_UNAME=" + uname}
 	env = append(env, infra.PromptEnv...)
-	rt := agent.BuildRuntime(cfg, infra.ToolsConn, cwd, env, layers.SystemPrompt, layers.OpModel, layers.EnvBlock)
+	rt := agent.BuildRuntime(cfg, infra.ToolsConn, cwd, env, layers.SystemPrompt, layers.EnvBlock)
 
 	// Apply backend/model overrides to runtime
 	if backendName != "" {

session/setup.go

@@ -141,7 +141,6 @@ func SetupToolServer(cfg ToolServerConfig) (*SessionInfra, error) {
 // PromptLayers holds the resolved prompt components for an agent.
 type PromptLayers struct {
 	SystemPrompt string
-	OpModel      string
 	EnvBlock     string
 }
 
@@ -156,14 +155,6 @@ func BuildPromptLayers(cfg *agent.AgentConfig, cwd, sessID, uname string, prompt
 	}
 	sysPrompt := prompts.ResolveSystemPrompt(spOverride)
 
-	envMap := make(map[string]string)
-	for _, e := range env {
-		if k, v, ok := strings.Cut(e, "="); ok {
-			envMap[k] = v
-		}
-	}
-	opModel := prompts.OperationalModel(true, false, envMap)
-
 	platform := "linux"
 	isGitRepo := false
 	for _, e := range promptEnv {
@@ -180,14 +171,13 @@ func BuildPromptLayers(cfg *agent.AgentConfig, cwd, sessID, uname string, prompt
 
 	return PromptLayers{
 		SystemPrompt: sysPrompt,
-		OpModel:      opModel,
 		EnvBlock:     envBlock,
 	}
 }
 
-// BaseLayers returns the three prompt layers as a slice for agent configuration.
+// BaseLayers returns the prompt layers as a slice for agent configuration.
 func (p PromptLayers) BaseLayers() []string {
-	return []string{p.SystemPrompt, p.OpModel, p.EnvBlock}
+	return []string{p.SystemPrompt, p.EnvBlock}
 }
 
 // LoadAutoLoadTools loads all tools from the agent config's autoLoad list.