multica-ai/multica · error

marshal task context marker: %w

Error message

marshal task context marker: %w

What it means

Error "marshal task context marker: %w" thrown in multica-ai/multica.

Source

Thrown at server/internal/daemon/execenv/context.go:220

	return nil
}

func writeTaskContextMarker(workDir string, ctx TaskContextForEnv, manifest *sidecarManifest) error {
	dir := filepath.Dir(filepath.Join(workDir, TaskContextMarkerRelPath))
	if err := recordMkdirAll(dir, 0o755, manifest); err != nil {
		return fmt.Errorf("create .multica dir: %w", err)
	}
	// The sidecar manifest removes this marker on normal local_directory
	// cleanup. If a crash leaves it behind, the CLI intentionally treats it
	// as daemon context and fails closed instead of using a user PAT.
	payload := taskContextMarkerFile{
		ManagedBy: TaskContextMarkerManagedBy,
		AgentID:   ctx.AgentID,
		IssueID:   ctx.IssueID,
	}
	data, err := json.MarshalIndent(payload, "", "  ")
	if err != nil {
		return fmt.Errorf("marshal task context marker: %w", err)
	}
	if err := recordWriteFile(filepath.Join(workDir, TaskContextMarkerRelPath), data, 0o644, manifest); err != nil {
		if errors.Is(err, errPathPreExists) {
			path := filepath.Join(workDir, TaskContextMarkerRelPath)
			existing, readErr := os.ReadFile(path)
			if readErr != nil {
				return fmt.Errorf("read existing task context marker: %w", readErr)
			}
			var marker taskContextMarkerFile
			if json.Unmarshal(existing, &marker) != nil || marker.ManagedBy != TaskContextMarkerManagedBy {
				return fmt.Errorf("write task context marker: %w", err)
			}
			if writeErr := os.WriteFile(path, data, 0o644); writeErr != nil {
				return fmt.Errorf("refresh task context marker: %w", writeErr)
			}
			if manifest != nil {
				manifest.Files = append(manifest.Files, path)
			}

View on GitHub (pinned to 2c0912b6ec)

Solutions

1. Retry; the task context marker could not be serialized.

When it happens

Trigger: Thrown at server/internal/daemon/execenv/context.go:220 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of multica-ai/multica@2c0912b6ec (2026-08-15). Data as JSON: /api/errors/3ddbbaff8823de87. Report an issue: GitHub.