charmbracelet/crush · error

failed to get config: %w

Error message

failed to get config: %w

What it means

overrideModels (internal/cmd/run.go:489) wraps any error from c.GetConfig when fetching the workspace configuration via --model/--small-model overrides in the non-interactive run path. It indicates the server config could not be retrieved, so model overrides cannot be resolved.

Source

Thrown at internal/cmd/run.go:489

			return fmt.Errorf("timeout waiting for agent readiness")
		case <-ctx.Done():
			return ctx.Err()
		case <-time.After(200 * time.Millisecond):
		}
	}
}

// overrideModels resolves model strings and updates the workspace
// configuration via the server.
func overrideModels(
	ctx context.Context,
	c *client.Client,
	ws *proto.Workspace,
	largeModel, smallModel string,
) error {
	cfg, err := c.GetConfig(ctx, ws.ID)
	if err != nil {
		return fmt.Errorf("failed to get config: %w", err)
	}

	providers := cfg.Providers.Copy()

	largeMatches, smallMatches := findModelMatches(providers, largeModel, smallModel)

	var largeProviderID string

	if largeModel != "" {
		found, err := validateModelMatches(largeMatches, largeModel, "large")
		if err != nil {
			return err
		}
		largeProviderID = found.provider
		slog.Info("Overriding large model", "provider", found.provider, "model", found.modelID)
		if err := c.UpdatePreferredModel(ctx, ws.ID, config.ScopeWorkspace, config.SelectedModelTypeLarge, config.SelectedModel{
			Provider: found.provider,
			Model:    found.modelID,

View on GitHub (pinned to 7944b8e522)

Solutions

1. Check the wrapped cause to identify transport vs HTTP error
2. Verify server connectivity and authentication credentials
3. Confirm the workspace ID is correct and exists
4. Retry the command if the failure was transient
5. Check server logs for the corresponding request failure

// Pre-flight: fetch config before issuing model overrides
cfg, err := c.GetConfig(ctx, ws.ID)
if err != nil {
	return fmt.Errorf("pre-flight config check failed: %w", err)
}

if err := overrideModels(ctx, c, ws, large, small); err != nil {
	var unwrapped error
	if errors.As(err, &unwrapped) && strings.Contains(err.Error(), "failed to get config") {
		// handle connectivity/auth failure before retrying
	}
}

When it happens

Trigger: runNonInteractive is invoked with largeModel or smallModel set; c.GetConfig(ctx, ws.ID) fails due to network error, HTTP error (401/404/500), or canceled context.

Common situations: Server unreachable mid-run; workspace ID invalid; auth token expired; server returning 5xx; context deadline exceeded on a slow network.

Related errors

• failed to set large model: %w
• failed to set small model: %w
• failed to read response: %w
• failed to set config field: %w
• failed to remove config field: %w

AI-assisted analysis of charmbracelet/crush@7944b8e522 (2026-08-29). Data as JSON: /api/errors/b92ba111274c7348. Report an issue: GitHub.