sipeed/picoclaw · error

%w: all %d slots occupied for %v

Error message

%w: all %d slots occupied for %v

What it means

Error "%w: all %d slots occupied for %v" thrown in sipeed/picoclaw.

Source

Thrown at pkg/agent/subturn.go:306

		// Create a timeout context for semaphore acquisition
		timeoutCtx, cancel := context.WithTimeout(ctx, rtCfg.concurrencyTimeout)
		defer cancel()

		select {
		case parentTS.concurrencySem <- struct{}{}:
			semAcquired = true
			defer func() {
				if semAcquired {
					<-parentTS.concurrencySem
				}
			}()
		case <-timeoutCtx.Done():
			// Check parent context first - if it was canceled, propagate that error
			if ctx.Err() != nil {
				return nil, ctx.Err()
			}
			// Otherwise it's our timeout
			return nil, fmt.Errorf("%w: all %d slots occupied for %v",
				ErrConcurrencyTimeout, rtCfg.maxConcurrent, rtCfg.concurrencyTimeout)
		}
	}

	// 1. Depth limit check
	if parentTS.depth >= rtCfg.maxDepth {
		logger.WarnCF("subturn", "Depth limit exceeded", map[string]any{
			"parent_id": parentTS.turnID,
			"depth":     parentTS.depth,
			"max_depth": rtCfg.maxDepth,
		})
		return nil, ErrDepthLimitExceeded
	}

	// 2. Config validation: Model is required unless TargetAgentID is set
	//    (the target agent provides its own model).
	if cfg.Model == "" && cfg.TargetAgentID == "" {
		return nil, ErrInvalidSubTurnConfig

View on GitHub (pinned to 49183d7e8d)

When it happens

Trigger: Thrown at pkg/agent/subturn.go:306 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/fec34925374d0352. Report an issue: GitHub.