sipeed/picoclaw · error

turn %s is still active for session %q

Error message

turn %s is still active for session %q

What it means

Error "turn %s is still active for session %q" thrown in sipeed/picoclaw.

Source

Thrown at pkg/agent/steering.go:382

// Continue resumes an idle agent by dequeuing any pending steering messages
// and running them through the agent loop. This is used when the agent's last
// message was from the assistant (i.e., it has stopped processing) and the
// user has since enqueued steering messages.
//
// If no steering messages are pending, it returns an empty string.
func (al *AgentLoop) Continue(ctx context.Context, sessionKey, channel, chatID string) (string, error) {
	// Claim the session with a unique placeholder to prevent a TOCTOU race where two
	// concurrent Continue calls for the same session both pass the active-turn
	// check and create parallel turns. The placeholder is replaced by the real
	// turnState inside continueWithSteeringMessages → runAgentLoop → registerActiveTurn.
	placeholder := &turnState{
		turnID: "pending-continue-" + sessionKey + "-" + fmt.Sprintf("%d", al.turnSeq.Add(1)),
		phase:  TurnPhaseSetup,
	}
	if _, loaded := al.activeTurnStates.LoadOrStore(sessionKey, placeholder); loaded {
		if active := al.GetActiveTurnBySession(sessionKey); active != nil {
			return "", fmt.Errorf("turn %s is still active for session %q", active.TurnID, sessionKey)
		}
		// Another Continue just claimed the slot; let it handle the steering.
		return "", nil
	}

	if err := al.ensureHooksInitialized(ctx); err != nil {
		al.activeTurnStates.Delete(sessionKey)
		return "", err
	}
	if err := al.ensureMCPInitialized(ctx); err != nil {
		al.activeTurnStates.Delete(sessionKey)
		return "", err
	}

	steeringMsgs := al.dequeueSteeringMessagesForScopeWithFallback(sessionKey)
	if len(steeringMsgs) == 0 {
		al.activeTurnStates.Delete(sessionKey)
		return "", nil

View on GitHub (pinned to 49183d7e8d)

When it happens

Trigger: Thrown at pkg/agent/steering.go:382 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of sipeed/picoclaw@49183d7e8d (2026-08-15). Data as JSON: /api/errors/fcd1a8cd7db46a96. Report an issue: GitHub.