Test Robustness with Directed Acyclic Graphs R package DAGassist version 0.2.8 Provides robustness checks to align estimands with the identification that they require. Given a 'dagitty' object and a model specification, 'DAGassist' classifies variables by causal roles, recovers a target estimand, and generates a report comparing the original model with DAG-derived adjustment sets. Exports publication-grade reports in 'LaTeX', 'Word', 'Excel', 'dotwhisker', or plain text/'markdown'. 'DAGassist' is built on 'dagitty', an 'R' package that uses the 'DAGitty' web tool (<https://dagitty.net/>) for creating and analyzing DAGs. Methods draw on Pearl (2009) <doi:10.1017/CBO9780511803161> and Textor et al. (2016) <doi:10.1093/ije/dyw341>. Software Depends: R (>= 3.5) Imports: broom, cli, crayon, dagitty, magrittr, stats, tools, utils, writexl, dplyr, ggplot2, dotwhisker Suggests: devtools, fixest, ggdag, knitr, modelsummary, rmarkdown, testthat (>= 3.0.0), tidyverse, DiagrammeR, marginaleffects, WeightIt, DirectEffects, lme4 Graham Goff <goffgrahamc@gmail.com> Comprehensive R Archive Network (CRAN) Graham Goff [aut, cre] (ORCID: <https://orcid.org/0000-0002-0717-6995>), Michael Denly [aut] (ORCID: <https://orcid.org/0000-0002-7074-5011>) GPL (>= 2) 2026-02-20 application/tgz https://CRAN.R-project.org/package=DAGassist doi:10.32614/CRAN.package.DAGassist