diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 95234b6..6f8f4b8 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -16,7 +16,6 @@ jobs:
           - {os: windows-latest, r: 'release'}
           - {os: ubuntu-latest,   r: 'devel', http-user-agent: 'release'}
           - {os: ubuntu-latest,   r: 'release'}
-          - {os: ubuntu-latest,   r: 'oldrel-1'}
 
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/pkgdown.yaml b/.github/workflows/pkgdown.yaml
new file mode 100644
index 0000000..485433e
--- /dev/null
+++ b/.github/workflows/pkgdown.yaml
@@ -0,0 +1,50 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  release:
+    types: [published]
+  workflow_dispatch:
+
+name: pkgdown
+
+jobs:
+  pkgdown:
+    runs-on: ubuntu-latest
+    concurrency:
+      group: pkgdown-${{ github.event_name != 'pull_request' || github.run_id }}
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: r-lib/actions/setup-pandoc@v2
+
+      - name: system dependencies
+        if: runner.os == 'Linux'
+        run: sudo apt-get install -y libmbedtls-dev
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::pkgdown, local::.
+          needs: website
+          cache-version: 2
+
+      - name: Build site
+        run: pkgdown::build_site_github_pages(new_process = FALSE, install = FALSE)
+        shell: Rscript {0}
+
+      - name: Deploy to GitHub pages
+        if: github.event_name != 'pull_request'
+        uses: JamesIves/github-pages-deploy-action@v4.6.1
+        with:
+          clean: false
+          branch: gh-pages
+          folder: docs
diff --git a/DESCRIPTION b/DESCRIPTION
index 63f2de5..06ecd98 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -2,7 +2,7 @@ Package: multiverse.internals
 Title: Internal Infrastructure for R-multiverse
 Description: R-multiverse requires this internal internal infrastructure
   package to automate contribution reviews and populate universes.
-Version: 0.1.4
+Version: 0.2.0
 License: MIT + file LICENSE
 URL: https://github.com/r-multiverse/multiverse.internals
 BugReports: https://github.com/r-multiverse/multiverse.internals/issues
diff --git a/NAMESPACE b/NAMESPACE
index 6a2bdc1..f976b55 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -5,6 +5,11 @@ export(assert_cran_url)
 export(assert_package)
 export(assert_release_exists)
 export(get_current_versions)
+export(issues_checks)
+export(issues_descriptions)
+export(issues_versions)
+export(meta_checks)
+export(meta_packages)
 export(record_issues)
 export(record_versions)
 export(review_pull_request)
diff --git a/NEWS.md b/NEWS.md
index 9a1b292..45edeef 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,9 @@
+# multiverse.internals 0.2.0
+
+* Add more checks to `record_issues()`: results from the R-universe check API, plus specific results from package `DESCRIPTION` files.
+* Refactor and document specific checks in `check_checks()`, `check_descriptions()`, and `check_versions()`.
+* Add a `pkgdown` website.
+
 # multiverse.internals 0.1.4
 
 * Do not write `version_issues.json` from `record_versions()`.
diff --git a/R/issues_checks.R b/R/issues_checks.R
new file mode 100644
index 0000000..d753a3f
--- /dev/null
+++ b/R/issues_checks.R
@@ -0,0 +1,41 @@
+#' @title Report issues from R-universe package check results.
+#' @export
+#' @family issues
+#' @description Check R-universe package check results.
+#' @details [issues_checks()] reads output from
+#'   the R-universe check API
+#'   to scan all R-multiverse packages for issues that may have
+#'   happened during building and testing.
+#' @inheritSection record_issues Package issues
+#' @return A named list of information about packages which do not comply
+#'   with `DESCRPTION` checks. Each name is a package name,
+#'   and each element contains specific information about
+#'   non-compliance.
+#' @param meta A data frame with R-universe package check results
+#'   returned by [meta_checks()].
+#' @examples
+#'   meta <- meta_checks(repo = "https://wlandau.r-universe.dev")
+#'   issues <- issues_checks(meta = meta)
+#'   str(issues)
+issues_checks <- function(meta) {
+  fields_check <- c(
+    "_linuxdevel",
+    "_macbinary",
+    "_wasmbinary",
+    "_winbinary",
+    "_status"
+  )
+  fields_info <- c(
+    "_buildurl"
+  )
+  fields <- c(fields_check, fields_info)
+  for (field in fields) {
+    meta[[field]][is.na(meta[[field]])] <- "src-failure"
+  }
+  success <- rep(TRUE, nrow(meta))
+  for (field in fields_check) {
+    success <- success & (meta[[field]] %in% c("success", "skipped"))
+  }
+  meta <- meta[!success,, drop = FALSE] # nolint
+  issues_list(meta[, c("package", fields)])
+}
diff --git a/R/issues_descriptions.R b/R/issues_descriptions.R
new file mode 100644
index 0000000..950bf91
--- /dev/null
+++ b/R/issues_descriptions.R
@@ -0,0 +1,31 @@
+#' @title Report `DESCRIPTION` file issues.
+#' @export
+#' @family issues
+#' @description Report issues with the `DESCRIPTION` files of packages.
+#' @details [issues_descriptions()] scans downloaded metadata from the
+#'   `PACKAGES.json` file of an R universe and reports issues with a
+#'   package's description file, such as the presence of a
+#'   `"Remotes"` field.
+#' @inheritSection record_issues Package issues
+#' @return A named list of information about packages which do not comply
+#'   with `DESCRPTION` checks. Each name is a package name,
+#'   and each element contains specific information about
+#'   non-compliance.
+#' @param meta A data frame with R-universe package check results
+#'   returned by [meta_checks()].
+#' @examples
+#'   meta <- meta_packages(repo = "https://wlandau.r-universe.dev")
+#'   issues <- issues_descriptions(meta = meta)
+#'   str(issues)
+issues_descriptions <- function(meta) {
+  meta <- issues_descriptions_remotes(meta)
+  fields <- "remotes"
+  meta <- meta[, c("package", fields)]
+  issues_list(meta)
+}
+
+issues_descriptions_remotes <- function(meta) {
+  meta[["remotes"]] <- meta[["remotes"]] %||% replicate(nrow(meta), NULL)
+  meta$remotes <- lapply(meta$remotes, function(x) x[nzchar(x)])
+  meta[vapply(meta$remotes, length, integer(1L)) > 0L, ]
+}
diff --git a/R/issues_versions.R b/R/issues_versions.R
new file mode 100644
index 0000000..523b643
--- /dev/null
+++ b/R/issues_versions.R
@@ -0,0 +1,63 @@
+#' @title Check package versions.
+#' @export
+#' @family issues
+#' @description Check package version number history for compliance.
+#' @details This function checks the version number history of packages
+#'   in R-multiverse and reports any packages with issues. The current
+#'   released version of a given package must be unique, and it must be
+#'   greater than all the versions of all the previous package releases.
+#' @inheritSection record_issues Package issues
+#' @return A named list of information about packages which do not comply
+#'   with version number history checks. Each name is a package name,
+#'   and each element contains specific information about version
+#'   non-compliance: the current version number, the current version hash,
+#'   and the analogous versions and hashes of the highest-versioned
+#'   release recorded.
+#' @inheritParams record_versions
+#' @examples
+#'   # See https://github.com/r-multiverse/checks/blob/main/versions.json
+#'   # for the official versions JSON for R-multiverse.
+#'   lines <- c(
+#'     "[",
+#'     " {",
+#'     " \"package\": \"package_unmodified\",",
+#'     " \"version_current\": \"1.0.0\",",
+#'     " \"hash_current\": \"hash_1.0.0\",",
+#'     " \"version_highest\": \"1.0.0\",",
+#'     " \"hash_highest\": \"hash_1.0.0\"",
+#'     " },",
+#'     " {",
+#'     " \"package\": \"version_decremented\",",
+#'     " \"version_current\": \"0.0.1\",",
+#'     " \"hash_current\": \"hash_0.0.1\",",
+#'     " \"version_highest\": \"1.0.0\",",
+#'     " \"hash_highest\": \"hash_1.0.0\"",
+#'     " },",
+#'     " {",
+#'     " \"package\": \"version_incremented\",",
+#'     " \"version_current\": \"2.0.0\",",
+#'     " \"hash_current\": \"hash_2.0.0\",",
+#'     " \"version_highest\": \"2.0.0\",",
+#'     " \"hash_highest\": \"hash_2.0.0\"",
+#'     " },",
+#'     " {",
+#'     " \"package\": \"version_unmodified\",",
+#'     " \"version_current\": \"1.0.0\",",
+#'     " \"hash_current\": \"hash_1.0.0-modified\",",
+#'     " \"version_highest\": \"1.0.0\",",
+#'     " \"hash_highest\": \"hash_1.0.0\"",
+#'     " }",
+#'     "]"
+#'   )
+#'   versions <- tempfile()
+#'   writeLines(lines, versions)
+#'   out <- issues_versions(versions)
+#'   str(out)
+issues_versions <- function(versions) {
+  history <- jsonlite::read_json(path = versions, simplifyVector = TRUE)
+  aligned <- (history$version_current == history$version_highest) &
+    (history$hash_current == history$hash_highest)
+  aligned[is.na(aligned)] <- TRUE
+  out <- history[!aligned,, drop = FALSE] # nolint
+  issues_list(out)
+}
diff --git a/R/meta_checks.R b/R/meta_checks.R
new file mode 100644
index 0000000..a1bc56a
--- /dev/null
+++ b/R/meta_checks.R
@@ -0,0 +1,35 @@
+#' @title List metadata about R-universe package checks
+#' @export
+#' @family list
+#' @description List package checks results reported by the
+#'   R-universe package API.
+#' @return A data frame with one row per package and columns with
+#'   package check results.
+#' @param repo Character of length 1, URL of the package repository.
+#'   R-multiverse uses `"https://multiverse.r-multiverse.org"`.
+#' @examples
+#' meta_checks(repo = "https://wlandau.r-universe.dev")
+meta_checks <- function(repo = "https://multiverse.r-multiverse.org") {
+  fields <- c(
+    "_buildurl",
+    "_linuxdevel",
+    "_macbinary",
+    "_wasmbinary",
+    "_winbinary",
+    "_status"
+  )
+  listing <- file.path(
+    repo,
+    "api",
+    paste0("packages?stream=true&fields=", paste(fields, collapse = ","))
+  )
+  out <- jsonlite::stream_in(
+    con = gzcon(url(listing)),
+    verbose = FALSE,
+    simplifyVector = TRUE,
+    simplifyDataFrame = TRUE,
+    simplifyMatrix = TRUE
+  )
+  colnames(out) <- tolower(colnames(out))
+  out
+}
diff --git a/R/meta_packages.R b/R/meta_packages.R
new file mode 100644
index 0000000..54ed0ca
--- /dev/null
+++ b/R/meta_packages.R
@@ -0,0 +1,25 @@
+#' @title List package metadata
+#' @export
+#' @family meta
+#' @description List package metadata in an R universe.
+#' @return A data frame with one row per package and columns with package
+#'   metadata.
+#' @inheritParams meta_checks
+#' @examples
+#' meta_packages(repo = "https://wlandau.r-universe.dev")
+meta_packages <- function(repo = "https://multiverse.r-multiverse.org") {
+  fields <- c("Version", "Remotes", "RemoteSha")
+  listing <- file.path(
+    contrib.url(repos = repo, type = "source"),
+    paste0("PACKAGES.json?fields=", paste(fields, collapse = ","))
+  )
+  out <- jsonlite::stream_in(
+    con = gzcon(url(listing)),
+    verbose = FALSE,
+    simplifyVector = TRUE,
+    simplifyDataFrame = TRUE,
+    simplifyMatrix = TRUE
+  )
+  colnames(out) <- tolower(colnames(out))
+  out
+}
diff --git a/R/package.R b/R/package.R
index c82d1ff..76f04ab 100644
--- a/R/package.R
+++ b/R/package.R
@@ -1,7 +1,3 @@
-#' multiverse.internals: Internal Infrastructure for R-multiverse.
-#' @description Internal Infrastructure for R-multiverse.
-#' @name multiverse.internals-package
-#' @family help
 #' @importFrom gh gh
 #' @importFrom jsonlite parse_json read_json stream_in write_json
 #' @importFrom nanonext ncurl parse_url status_code
diff --git a/R/record_issues.R b/R/record_issues.R
index 93f5e5d..be17eb9 100644
--- a/R/record_issues.R
+++ b/R/record_issues.R
@@ -1,40 +1,116 @@
 #' @title Record package issues.
 #' @export
-#' @description Record package check and version issues in individual JSON
-#'   files.
+#' @keywords package check data management
+#' @description Record R-multiverse package issues in
+#'   package-specific JSON files.
+#' @section Package issues:
+#'   Functions like [issues_versions()] and [issues_descriptions()]
+#'   perform health checks for all packages in R-multiverse.
+#'   Only packages that pass these checks go to the production repository at
+#'   <https://production.r-multiverse.org>. For a complete list of checks, see
+#'   the `issues_*()` functions listed at
+#'   <https://r-multiverse.org/multiverse.internals/reference.html>.
+#'   [record_versions()] updates the version number history
+#'   of releases in R-multiverse, and [record_issues()] gathers
+#'   together all the issues about R-multiverse packages.
+#' @section Issue files:
+#'   For each package with observed problems, [record_issues()] writes
+#'   an issue file. This issue file is a JSON list with one element
+#'   per type of failing check. Each element has an informative name
+#'   (for example, `checks`, `descriptions`, or `versions`)
+#'   and a list of diagnostic information.
+#'
+#'   Each issue file also has a `date` field. This date the day that
+#'   an issue was first noticed. It automatically resets the next time
+#'   all package are resolved.
 #' @return `NULL` (invisibly).
-#' @param manifest Character of length 1, file path to a JSON manifest
-#'   tracking release versions of packages.
+#' @inheritParams issues_checks
+#' @inheritParams issues_versions
+#' @inheritParams meta_checks
 #' @param output Character of length 1, file path to the folder to record
 #'   new package issues. Each call to `record_issues()` overwrites the
 #'   contents of the repo.
+#' @param mock For testing purposes only, a named list of data frames
+#'   for inputs to various intermediate functions.
+#' @examples
+#'   repo <- "https://wlandau.r-universe.dev"
+#'   output <- tempfile()
+#'   versions <- tempfile()
+#'   record_versions(
+#'     versions = versions,
+#'     repo = repo
+#'   )
+#'   record_issues(
+#'     repo = repo,
+#'     versions = versions,
+#'     output = output
+#'   )
+#'   files <- list.files(output)
+#'   print(files)
+#'   package <- head(files, n = 1)
+#'   if (length(package)) {
+#'     print(package)
+#'   }
+#'   if (length(package)) {
+#'     print(readLines(file.path(output, package)))
+#'   }
 record_issues <- function(
-  manifest = "versions.json",
-  output = "issues"
+  repo = "https://multiverse.r-multiverse.org",
+  versions = "versions.json",
+  output = "issues",
+  mock = NULL
 ) {
-  issues_version <- version_issues(manifest)
-  issues <- issues_version # Will include check issues too later.
-  overwrite_issues(issues, output)
+  today <- mock$today %||% format(Sys.Date(), fmt = "yyyy-mm-dd")
+  checks <- mock$checks %||% meta_checks(repo = repo)
+  packages <- mock$packages %||% meta_packages(repo = repo)
+  issues <- list() |>
+    add_issues(issues_checks(meta = checks), "checks") |>
+    add_issues(issues_descriptions(meta = packages), "descriptions") |>
+    add_issues(issues_versions(versions = versions), "versions") |>
+    overwrite_issues(output = output, today = today)
   invisible()
 }
 
-overwrite_issues <- function(issues, output) {
+add_issues <- function(total, subset, category) {
+  for (package in names(subset)) {
+    total[[package]][[category]] <- subset[[package]]
+  }
+  total
+}
+
+overwrite_issues <- function(issues, output, today) {
+  packages <- list.files(output)
+  dates <- lapply(
+    X = packages,
+    FUN = function(path) {
+      jsonlite::read_json(file.path(output, path), simplifyVector = TRUE)$date
+    }
+  )
+  names(dates) <- packages
   unlink(output, recursive = TRUE)
   dir.create(output)
-  for (index in seq_len(nrow(issues))) {
-    row <- vctrs::vec_slice(x = issues, i = index)
-    jsonlite::write_json(row, file.path(output, row$package))
-  }
+  lapply(
+    X = names(issues),
+    FUN = overwrite_package_issues,
+    issues = issues,
+    output = output,
+    today = today,
+    dates = dates
+  )
 }
 
-version_issues <- function(manifest) {
-  manifest <- jsonlite::read_json(path = manifest, simplifyVector = TRUE)
-  aligned <- (manifest$version_current == manifest$version_highest) &
-    (manifest$hash_current == manifest$hash_highest)
-  aligned[is.na(aligned)] <- TRUE
-  out <- manifest[!aligned,, drop = FALSE] # nolint
-  if (nrow(out)) {
-    out$version_okay <- FALSE
-  }
-  out
+overwrite_package_issues <- function(
+  package,
+  issues,
+  output,
+  today,
+  dates
+) {
+  path <- file.path(output, package)
+  issues[[package]]$date <- dates[[package]] %||% today
+  jsonlite::write_json(
+    x = issues[[package]],
+    path = file.path(output, package),
+    pretty = TRUE
+  )
 }
diff --git a/R/record_versions.R b/R/record_versions.R
index c95bdc6..1b82186 100644
--- a/R/record_versions.R
+++ b/R/record_versions.R
@@ -1,30 +1,54 @@
 #' @title Record the manifest of package versions.
 #' @export
+#' @family package check data management
 #' @description Record the manifest of versions of packages
 #'   and their hashes.
 #' @details This function tracks a manifest containing the current version,
 #'   the current hash, the highest version ever released, and
-#'   the hash of the highest version ever released. It uses this information
+#'   the hash of the highest version ever released.
+#'   [issues_versions()] uses this information
 #'   to determine whether the package complies with best
 #'   practices for version numbers.
+#' @inheritSection record_issues Package issues
 #' @return `NULL` (invisibly). Writes a package version manifest
 #'   and a manifest of version issues as JSON files.
-#' @param manifest Character of length 1, file path to the JSON manifest.
-#' @param repo Character string of package repositories to track.
+#' @inheritParams meta_checks
+#' @param versions Character of length 1, file path to a JSON manifest
+#'   tracking the history of released versions of packages.
+#'   The official versions file for R-multiverse is maintained and
+#'   updated periodically at
+#'   <https://github.com/r-multiverse/checks/blob/main/versions.json>.
 #' @param current A data frame of current versions and hashes of packages
 #'   in `repo`. This argument is exposed for testing only.
+#' @examples
+#'   # R-multiverse uses https://multiverse.r-multiverse.org as the repo.
+#'   repo <- "https://wlandau.r-universe.dev" # just for testing and examples
+#'   output <- tempfile()
+#'   versions <- tempfile()
+#'   # First snapshot:
+#'   record_versions(
+#'     versions = versions,
+#'     repo = repo
+#'   )
+#'   readLines(versions)
+#'   # In subsequent snapshots, we have historical information about versions.
+#'   record_versions(
+#'     versions = versions,
+#'     repo = repo
+#'   )
+#'   readLines(versions)
 record_versions <- function(
-  manifest = "versions.json",
-  repo = "https://r-multiverse.r-universe.dev",
+  versions = "versions.json",
+  repo = "https://multiverse.r-multiverse.org",
   current = multiverse.internals::get_current_versions(repo = repo)
 ) {
-  if (!file.exists(manifest)) {
-    jsonlite::write_json(x = current, path = manifest, pretty = TRUE)
+  if (!file.exists(versions)) {
+    jsonlite::write_json(x = current, path = versions, pretty = TRUE)
     return(invisible())
   }
-  previous <- read_versions_previous(manifest = manifest)
-  new <- update_version_manifest(current = current, previous = previous)
-  jsonlite::write_json(x = new, path = manifest, pretty = TRUE)
+  previous <- read_versions_previous(versions = versions)
+  new <- update_versions(current = current, previous = previous)
+  jsonlite::write_json(x = new, path = versions, pretty = TRUE)
   invisible()
 }
 
@@ -35,27 +59,17 @@ record_versions <- function(
 #' @return A data frame of packages with their current versions and hashes.
 #' @inheritParams record_versions
 get_current_versions <- function(
-  repo = "https://r-multiverse.r-universe.dev"
+  repo = "https://multiverse.r-multiverse.org"
 ) {
-  listing <- file.path(
-    contrib.url(repos = repo, type = "source"),
-    "PACKAGES.json?fields=RemoteSha"
-  )
-  out <- jsonlite::stream_in(
-    con = gzcon(url(listing)),
-    verbose = TRUE,
-    simplifyVector = TRUE,
-    simplifyDataFrame = TRUE,
-    simplifyMatrix = TRUE
-  )
-  out <- out[, c("Package", "Version", "RemoteSha")]
-  colnames(out) <- c("package", "version_current", "hash_current")
-  rownames(out) <- NULL
-  out
+  meta <- meta_packages(repo = repo)
+  meta <- meta[, c("package", "version", "remotesha")]
+  colnames(meta) <- c("package", "version_current", "hash_current")
+  rownames(meta) <- NULL
+  meta
 }
 
-read_versions_previous <- function(manifest) {
-  out <- jsonlite::read_json(path = manifest, simplifyVector = TRUE)
+read_versions_previous <- function(versions) {
+  out <- jsonlite::read_json(path = versions, simplifyVector = TRUE)
   if (is.null(out$version_highest)) {
     out$version_highest <- out$version_current
   }
@@ -67,7 +81,7 @@ read_versions_previous <- function(manifest) {
   out
 }
 
-update_version_manifest <- function(current, previous) {
+update_versions <- function(current, previous) {
   new <- merge(
     x = current,
     y = previous,
@@ -75,15 +89,15 @@ update_version_manifest <- function(current, previous) {
     all.x = TRUE,
     all.y = FALSE
   )
-  incremented <- manifest_compare_versions(manifest = new) == 1L
+  incremented <- compare_versions(versions = new) == 1L
   new$version_highest[incremented] <- new$version_current[incremented]
   new$hash_highest[incremented] <- new$hash_current[incremented]
   new
 }
 
-manifest_compare_versions <- function(manifest) {
+compare_versions <- function(versions) {
   apply(
-    X = manifest,
+    X = versions,
     MARGIN = 1L,
     FUN = function(row) {
       utils::compareVersion(
diff --git a/R/review_pull_request.R b/R/review_pull_request.R
index 5188e70..bdbc003 100644
--- a/R/review_pull_request.R
+++ b/R/review_pull_request.R
@@ -10,8 +10,8 @@
 #'   4. Add a file in a forbidden place (close).
 #'   5. Add a custom JSON file which can be parsed (manual review).
 #' @return `NULL` (invisibly).
-#' @param owner Character of length 1, name of the universe repository owner.
-#' @param repo Character of length 1, name of the universe repository.
+#' @inheritParams meta_checks
+#' @param owner Character of length 1, name of the package repository owner.
 #' @param number Positive integer of length 1, index of the pull request
 #'   in the repo.
 review_pull_request <- function(
diff --git a/R/utils_issues.R b/R/utils_issues.R
new file mode 100644
index 0000000..4b7bf97
--- /dev/null
+++ b/R/utils_issues.R
@@ -0,0 +1,10 @@
+issues_list <- function(x) {
+  colnames(x) <- tolower(colnames(x))
+  out <- list()
+  for (index in seq_len(nrow(x))) {
+    for (field in setdiff(colnames(x), "package")) {
+      out[[x$package[index]]][[field]] <- x[[field]][[index]]
+    }
+  }
+  out[order(as.character(names(out)))]
+}
diff --git a/README.md b/README.md
index 05539e9..fcd49e5 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,4 @@
 [![check](https://github.com/r-multiverse/multiverse.internals/actions/workflows/check.yaml/badge.svg)](https://github.com/r-multiverse/multiverse.internals/actions?query=workflow%3Acheck)
 [![lint](https://github.com/r-multiverse/multiverse.internals/actions/workflows/lint.yaml/badge.svg)](https://github.com/r-multiverse/multiverse.internals/actions?query=workflow%3Alint)
 
-`multiverse.internals` is an R package to support the internal infrastructure for the R-multiverse project.
-
-For all matters please refer to <https://r-multiverse.github.io/>.
+`multiverse.internals` is an R package to support the internal infrastructure for the R-multiverse project. To learn about specific pieces of the R-multiverse infrastructure for reviewing and checking packages, please visit <https://r-multiverse.org/multiverse.internals/reference/index.html>. For all other matters, please refer to <https://r-multiverse.github.io/>.
diff --git a/_pkgdown.yml b/_pkgdown.yml
new file mode 100644
index 0000000..e5e165f
--- /dev/null
+++ b/_pkgdown.yml
@@ -0,0 +1,24 @@
+url: https://r-multiverse.org/multiverse.internals/
+template:
+  bootstrap: 5
+  bslib:
+    primary: "#152640"
+
+reference:
+- title: Package contribution reviews
+  contents:
+  - review_pull_request
+  - review_pull_requests
+- title: List metadata
+  contents:
+  - meta_checks
+  - meta_packages
+- title: Check issues
+  contents:
+  - issues_checks
+  - issues_descriptions
+  - issues_versions
+- title: Record issues
+  contents:
+  - record_issues
+  - record_versions
diff --git a/inst/WORDLIST b/inst/WORDLIST
index b5f8619..5d59fa5 100644
--- a/inst/WORDLIST
+++ b/inst/WORDLIST
@@ -4,3 +4,4 @@ JSON
 json
 repo
 pkgdown
+pre
diff --git a/man/get_current_versions.Rd b/man/get_current_versions.Rd
index e66f8e4..cdba07c 100644
--- a/man/get_current_versions.Rd
+++ b/man/get_current_versions.Rd
@@ -4,10 +4,11 @@
 \alias{get_current_versions}
 \title{Get the current versions of packages}
 \usage{
-get_current_versions(repo = "https://r-multiverse.r-universe.dev")
+get_current_versions(repo = "https://multiverse.r-multiverse.org")
 }
 \arguments{
-\item{repo}{Character string of package repositories to track.}
+\item{repo}{Character of length 1, URL of the package repository.
+R-multiverse uses \code{"https://multiverse.r-multiverse.org"}.}
 }
 \value{
 A data frame of packages with their current versions and hashes.
diff --git a/man/issues_checks.Rd b/man/issues_checks.Rd
new file mode 100644
index 0000000..8197040
--- /dev/null
+++ b/man/issues_checks.Rd
@@ -0,0 +1,51 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/issues_checks.R
+\name{issues_checks}
+\alias{issues_checks}
+\title{Report issues from R-universe package check results.}
+\usage{
+issues_checks(meta)
+}
+\arguments{
+\item{meta}{A data frame with R-universe package check results
+returned by \code{\link[=meta_checks]{meta_checks()}}.}
+}
+\value{
+A named list of information about packages which do not comply
+with \code{DESCRPTION} checks. Each name is a package name,
+and each element contains specific information about
+non-compliance.
+}
+\description{
+Check R-universe package check results.
+}
+\details{
+\code{\link[=issues_checks]{issues_checks()}} reads output from
+the R-universe check API
+to scan all R-multiverse packages for issues that may have
+happened during building and testing.
+}
+\section{Package issues}{
+
+Functions like \code{\link[=issues_versions]{issues_versions()}} and \code{\link[=issues_descriptions]{issues_descriptions()}}
+perform health checks for all packages in R-multiverse.
+Only packages that pass these checks go to the production repository at
+\url{https://production.r-multiverse.org}. For a complete list of checks, see
+the \verb{issues_*()} functions listed at
+\url{https://r-multiverse.org/multiverse.internals/reference.html}.
+\code{\link[=record_versions]{record_versions()}} updates the version number history
+of releases in R-multiverse, and \code{\link[=record_issues]{record_issues()}} gathers
+together all the issues about R-multiverse packages.
+}
+
+\examples{
+  meta <- meta_checks(repo = "https://wlandau.r-universe.dev")
+  issues <- issues_checks(meta = meta)
+  str(issues)
+}
+\seealso{
+Other issues: 
+\code{\link{issues_descriptions}()},
+\code{\link{issues_versions}()}
+}
+\concept{issues}
diff --git a/man/issues_descriptions.Rd b/man/issues_descriptions.Rd
new file mode 100644
index 0000000..3441404
--- /dev/null
+++ b/man/issues_descriptions.Rd
@@ -0,0 +1,51 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/issues_descriptions.R
+\name{issues_descriptions}
+\alias{issues_descriptions}
+\title{Report \code{DESCRIPTION} file issues.}
+\usage{
+issues_descriptions(meta)
+}
+\arguments{
+\item{meta}{A data frame with R-universe package check results
+returned by \code{\link[=meta_checks]{meta_checks()}}.}
+}
+\value{
+A named list of information about packages which do not comply
+with \code{DESCRPTION} checks. Each name is a package name,
+and each element contains specific information about
+non-compliance.
+}
+\description{
+Report issues with the \code{DESCRIPTION} files of packages.
+}
+\details{
+\code{\link[=issues_descriptions]{issues_descriptions()}} scans downloaded metadata from the
+\code{PACKAGES.json} file of an R universe and reports issues with a
+package's description file, such as the presence of a
+\code{"Remotes"} field.
+}
+\section{Package issues}{
+
+Functions like \code{\link[=issues_versions]{issues_versions()}} and \code{\link[=issues_descriptions]{issues_descriptions()}}
+perform health checks for all packages in R-multiverse.
+Only packages that pass these checks go to the production repository at
+\url{https://production.r-multiverse.org}. For a complete list of checks, see
+the \verb{issues_*()} functions listed at
+\url{https://r-multiverse.org/multiverse.internals/reference.html}.
+\code{\link[=record_versions]{record_versions()}} updates the version number history
+of releases in R-multiverse, and \code{\link[=record_issues]{record_issues()}} gathers
+together all the issues about R-multiverse packages.
+}
+
+\examples{
+  meta <- meta_packages(repo = "https://wlandau.r-universe.dev")
+  issues <- issues_descriptions(meta = meta)
+  str(issues)
+}
+\seealso{
+Other issues: 
+\code{\link{issues_checks}()},
+\code{\link{issues_versions}()}
+}
+\concept{issues}
diff --git a/man/issues_versions.Rd b/man/issues_versions.Rd
new file mode 100644
index 0000000..c6d8796
--- /dev/null
+++ b/man/issues_versions.Rd
@@ -0,0 +1,91 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/issues_versions.R
+\name{issues_versions}
+\alias{issues_versions}
+\title{Check package versions.}
+\usage{
+issues_versions(versions)
+}
+\arguments{
+\item{versions}{Character of length 1, file path to a JSON manifest
+tracking the history of released versions of packages.
+The official versions file for R-multiverse is maintained and
+updated periodically at
+\url{https://github.com/r-multiverse/checks/blob/main/versions.json}.}
+}
+\value{
+A named list of information about packages which do not comply
+with version number history checks. Each name is a package name,
+and each element contains specific information about version
+non-compliance: the current version number, the current version hash,
+and the analogous versions and hashes of the highest-versioned
+release recorded.
+}
+\description{
+Check package version number history for compliance.
+}
+\details{
+This function checks the version number history of packages
+in R-multiverse and reports any packages with issues. The current
+released version of a given package must be unique, and it must be
+greater than all the versions of all the previous package releases.
+}
+\section{Package issues}{
+
+Functions like \code{\link[=issues_versions]{issues_versions()}} and \code{\link[=issues_descriptions]{issues_descriptions()}}
+perform health checks for all packages in R-multiverse.
+Only packages that pass these checks go to the production repository at
+\url{https://production.r-multiverse.org}. For a complete list of checks, see
+the \verb{issues_*()} functions listed at
+\url{https://r-multiverse.org/multiverse.internals/reference.html}.
+\code{\link[=record_versions]{record_versions()}} updates the version number history
+of releases in R-multiverse, and \code{\link[=record_issues]{record_issues()}} gathers
+together all the issues about R-multiverse packages.
+}
+
+\examples{
+  # See https://github.com/r-multiverse/checks/blob/main/versions.json
+  # for the official versions JSON for R-multiverse.
+  lines <- c(
+    "[",
+    " {",
+    " \"package\": \"package_unmodified\",",
+    " \"version_current\": \"1.0.0\",",
+    " \"hash_current\": \"hash_1.0.0\",",
+    " \"version_highest\": \"1.0.0\",",
+    " \"hash_highest\": \"hash_1.0.0\"",
+    " },",
+    " {",
+    " \"package\": \"version_decremented\",",
+    " \"version_current\": \"0.0.1\",",
+    " \"hash_current\": \"hash_0.0.1\",",
+    " \"version_highest\": \"1.0.0\",",
+    " \"hash_highest\": \"hash_1.0.0\"",
+    " },",
+    " {",
+    " \"package\": \"version_incremented\",",
+    " \"version_current\": \"2.0.0\",",
+    " \"hash_current\": \"hash_2.0.0\",",
+    " \"version_highest\": \"2.0.0\",",
+    " \"hash_highest\": \"hash_2.0.0\"",
+    " },",
+    " {",
+    " \"package\": \"version_unmodified\",",
+    " \"version_current\": \"1.0.0\",",
+    " \"hash_current\": \"hash_1.0.0-modified\",",
+    " \"version_highest\": \"1.0.0\",",
+    " \"hash_highest\": \"hash_1.0.0\"",
+    " }",
+    "]"
+  )
+  versions <- tempfile()
+  writeLines(lines, versions)
+  out <- issues_versions(versions)
+  str(out)
+}
+\seealso{
+Other issues: 
+\code{\link{issues_checks}()},
+\code{\link{issues_descriptions}()}
+}
+\concept{issues}
diff --git a/man/meta_checks.Rd b/man/meta_checks.Rd
new file mode 100644
index 0000000..eca1627
--- /dev/null
+++ b/man/meta_checks.Rd
@@ -0,0 +1,24 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/meta_checks.R
+\name{meta_checks}
+\alias{meta_checks}
+\title{List metadata about R-universe package checks}
+\usage{
+meta_checks(repo = "https://multiverse.r-multiverse.org")
+}
+\arguments{
+\item{repo}{Character of length 1, URL of the package repository.
+R-multiverse uses \code{"https://multiverse.r-multiverse.org"}.}
+}
+\value{
+A data frame with one row per package and columns with
+package check results.
+}
+\description{
+List package checks results reported by the
+R-universe package API.
+}
+\examples{
+meta_checks(repo = "https://wlandau.r-universe.dev")
+}
+\concept{list}
diff --git a/man/meta_packages.Rd b/man/meta_packages.Rd
new file mode 100644
index 0000000..08de109
--- /dev/null
+++ b/man/meta_packages.Rd
@@ -0,0 +1,23 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/meta_packages.R
+\name{meta_packages}
+\alias{meta_packages}
+\title{List package metadata}
+\usage{
+meta_packages(repo = "https://multiverse.r-multiverse.org")
+}
+\arguments{
+\item{repo}{Character of length 1, URL of the package repository.
+R-multiverse uses \code{"https://multiverse.r-multiverse.org"}.}
+}
+\value{
+A data frame with one row per package and columns with package
+metadata.
+}
+\description{
+List package metadata in an R universe.
+}
+\examples{
+meta_packages(repo = "https://wlandau.r-universe.dev")
+}
+\concept{meta}
diff --git a/man/multiverse.internals-package.Rd b/man/multiverse.internals-package.Rd
deleted file mode 100644
index a9c86f0..0000000
--- a/man/multiverse.internals-package.Rd
+++ /dev/null
@@ -1,9 +0,0 @@
-% Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/package.R
-\name{multiverse.internals-package}
-\alias{multiverse.internals-package}
-\title{multiverse.internals: Internal Infrastructure for R-multiverse.}
-\description{
-Internal Infrastructure for R-multiverse.
-}
-\concept{help}
diff --git a/man/record_issues.Rd b/man/record_issues.Rd
index 001b7cc..31d3d97 100644
--- a/man/record_issues.Rd
+++ b/man/record_issues.Rd
@@ -4,20 +4,87 @@
 \alias{record_issues}
 \title{Record package issues.}
 \usage{
-record_issues(manifest = "versions.json", output = "issues")
+record_issues(
+  repo = "https://multiverse.r-multiverse.org",
+  versions = "versions.json",
+  output = "issues",
+  mock = NULL
+)
 }
 \arguments{
-\item{manifest}{Character of length 1, file path to a JSON manifest
-tracking release versions of packages.}
+\item{repo}{Character of length 1, URL of the package repository.
+R-multiverse uses \code{"https://multiverse.r-multiverse.org"}.}
+
+\item{versions}{Character of length 1, file path to a JSON manifest
+tracking the history of released versions of packages.
+The official versions file for R-multiverse is maintained and
+updated periodically at
+\url{https://github.com/r-multiverse/checks/blob/main/versions.json}.}
 
 \item{output}{Character of length 1, file path to the folder to record
 new package issues. Each call to \code{record_issues()} overwrites the
 contents of the repo.}
+
+\item{mock}{For testing purposes only, a named list of data frames
+for inputs to various intermediate functions.}
 }
 \value{
 \code{NULL} (invisibly).
 }
 \description{
-Record package check and version issues in individual JSON
-files.
+Record R-multiverse package issues in
+package-specific JSON files.
+}
+\section{Package issues}{
+
+Functions like \code{\link[=issues_versions]{issues_versions()}} and \code{\link[=issues_descriptions]{issues_descriptions()}}
+perform health checks for all packages in R-multiverse.
+Only packages that pass these checks go to the production repository at
+\url{https://production.r-multiverse.org}. For a complete list of checks, see
+the \verb{issues_*()} functions listed at
+\url{https://r-multiverse.org/multiverse.internals/reference.html}.
+\code{\link[=record_versions]{record_versions()}} updates the version number history
+of releases in R-multiverse, and \code{\link[=record_issues]{record_issues()}} gathers
+together all the issues about R-multiverse packages.
+}
+
+\section{Issue files}{
+
+For each package with observed problems, \code{\link[=record_issues]{record_issues()}} writes
+an issue file. This issue file is a JSON list with one element
+per type of failing check. Each element has an informative name
+(for example, \code{checks}, \code{descriptions}, or \code{versions})
+and a list of diagnostic information.
+
+Each issue file also has a \code{date} field. This date the day that
+an issue was first noticed. It automatically resets the next time
+all package are resolved.
+}
+
+\examples{
+  repo <- "https://wlandau.r-universe.dev"
+  output <- tempfile()
+  versions <- tempfile()
+  record_versions(
+    versions = versions,
+    repo = repo
+  )
+  record_issues(
+    repo = repo,
+    versions = versions,
+    output = output
+  )
+  files <- list.files(output)
+  print(files)
+  package <- head(files, n = 1)
+  if (length(package)) {
+    print(package)
+  }
+  if (length(package)) {
+    print(readLines(file.path(output, package)))
+  }
 }
+\keyword{check}
+\keyword{data}
+\keyword{management}
+\keyword{package}
diff --git a/man/record_versions.Rd b/man/record_versions.Rd
index 20cd985..2648fa0 100644
--- a/man/record_versions.Rd
+++ b/man/record_versions.Rd
@@ -5,15 +5,20 @@
 \title{Record the manifest of package versions.}
 \usage{
 record_versions(
-  manifest = "versions.json",
-  repo = "https://r-multiverse.r-universe.dev",
+  versions = "versions.json",
+  repo = "https://multiverse.r-multiverse.org",
   current = multiverse.internals::get_current_versions(repo = repo)
 )
 }
 \arguments{
-\item{manifest}{Character of length 1, file path to the JSON manifest.}
+\item{versions}{Character of length 1, file path to a JSON manifest
+tracking the history of released versions of packages.
+The official versions file for R-multiverse is maintained and
+updated periodically at
+\url{https://github.com/r-multiverse/checks/blob/main/versions.json}.}
 
-\item{repo}{Character string of package repositories to track.}
+\item{repo}{Character of length 1, URL of the package repository.
+R-multiverse uses \code{"https://multiverse.r-multiverse.org"}.}
 
 \item{current}{A data frame of current versions and hashes of packages
 in \code{repo}. This argument is exposed for testing only.}
@@ -29,7 +34,40 @@ and their hashes.
 \details{
 This function tracks a manifest containing the current version,
 the current hash, the highest version ever released, and
-the hash of the highest version ever released. It uses this information
+the hash of the highest version ever released.
+\code{\link[=issues_versions]{issues_versions()}} uses this information
 to determine whether the package complies with best
 practices for version numbers.
 }
+\section{Package issues}{
+
+Functions like \code{\link[=issues_versions]{issues_versions()}} and \code{\link[=issues_descriptions]{issues_descriptions()}}
+perform health checks for all packages in R-multiverse.
+Only packages that pass these checks go to the production repository at
+\url{https://production.r-multiverse.org}. For a complete list of checks, see
+the \verb{issues_*()} functions listed at
+\url{https://r-multiverse.org/multiverse.internals/reference.html}.
+\code{\link[=record_versions]{record_versions()}} updates the version number history
+of releases in R-multiverse, and \code{\link[=record_issues]{record_issues()}} gathers
+together all the issues about R-multiverse packages.
+}
+
+\examples{
+  # R-multiverse uses https://multiverse.r-multiverse.org as the repo.
+  repo <- "https://wlandau.r-universe.dev" # just for testing and examples
+  output <- tempfile()
+  versions <- tempfile()
+  # First snapshot:
+  record_versions(
+    versions = versions,
+    repo = repo
+  )
+  readLines(versions)
+  # In subsequent snapshots, we have historical information about versions.
+  record_versions(
+    versions = versions,
+    repo = repo
+  )
+  readLines(versions)
+}
+\concept{package check data management}
diff --git a/man/review_pull_request.Rd b/man/review_pull_request.Rd
index 59fca48..036a8bf 100644
--- a/man/review_pull_request.Rd
+++ b/man/review_pull_request.Rd
@@ -7,9 +7,10 @@
 review_pull_request(owner = "r-multiverse", repo = "contributions", number)
 }
 \arguments{
-\item{owner}{Character of length 1, name of the universe repository owner.}
+\item{owner}{Character of length 1, name of the package repository owner.}
 
-\item{repo}{Character of length 1, name of the universe repository.}
+\item{repo}{Character of length 1, URL of the package repository.
+R-multiverse uses \code{"https://multiverse.r-multiverse.org"}.}
 
 \item{number}{Positive integer of length 1, index of the pull request
 in the repo.}
diff --git a/man/review_pull_requests.Rd b/man/review_pull_requests.Rd
index f4bde69..3499642 100644
--- a/man/review_pull_requests.Rd
+++ b/man/review_pull_requests.Rd
@@ -7,9 +7,10 @@
 review_pull_requests(owner = "r-multiverse", repo = "contributions")
 }
 \arguments{
-\item{owner}{Character of length 1, name of the universe repository owner.}
+\item{owner}{Character of length 1, name of the package repository owner.}
 
-\item{repo}{Character of length 1, name of the universe repository.}
+\item{repo}{Character of length 1, URL of the package repository.
+R-multiverse uses \code{"https://multiverse.r-multiverse.org"}.}
 }
 \value{
 \code{NULL} (invisibly).
diff --git a/tests/testthat/helper-mock.R b/tests/testthat/helper-mock.R
new file mode 100644
index 0000000..062e116
--- /dev/null
+++ b/tests/testthat/helper-mock.R
@@ -0,0 +1,165 @@
+mock_meta_checks <- structure(
+  list(
+    package = c(
+      "tinytest", "tidytensor", "secretbase",
+      "multiverse.internals", "SBC", "duckdb", "httpgd", "targetsketch",
+      "stantargets", "zstdlite", "INLA", "audio.whisper", "tidypolars",
+      "multitools", "audio.vadwebrtc", "nanonext", "polars", "cmdstanr",
+      "string2path"
+    ),
+    "_user" = c(
+      "r-multiverse", "r-multiverse", "r-multiverse",
+      "r-multiverse", "r-multiverse", "r-multiverse", "r-multiverse",
+      "r-multiverse", "r-multiverse", "r-multiverse", "r-multiverse",
+      "r-multiverse", "r-multiverse", "r-multiverse", "r-multiverse",
+      "r-multiverse", "r-multiverse", "r-multiverse", "r-multiverse"
+    ),
+    "_type" = c(
+      "src", "src", "src", "src", "src", "src", "src",
+      "src", "src", "src", "failure", "src", "src", "src", "src", "src",
+      "src", "src", "src"
+    ),
+    "_status" = c(
+      "success", "failure", "success",
+      "success", "failure", "success", "success", "success", "success",
+      "success", NA, "success", "success", "success", "success", "success",
+      "success", "success", "success"
+    ),
+    "_winbinary" = c(
+      "success", "success", "success", "success",
+      "success", "success", "success",
+      "success", "success", "success", NA, "success", "success", "success",
+      "success", "success", "success", "success", "success"
+    ),
+    "_macbinary" = c(
+      "success", "success", "success", "success",
+      "success", "success", "success",
+      "success", "success", "success", NA, "success", "success", "success",
+      "success", "success", "arm64-failure", "success", "success"
+    ),
+    "_wasmbinary" = c(
+      "success", "success", "success", "success",
+      "success", "success", "none", "success", "success", "success",
+      NA, "success", "success", "success", "success", "success",
+      "none", "success", "none"
+    ),
+    "_linuxdevel" = c(
+      "success", "failure", "success", "success",
+      "failure", "success", "success",
+      "success", "failure", "success", NA,
+      "success", "success",
+      "success", "success", "success",
+      "failure", "success", "success"
+    ),
+    "_buildurl" = c(
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998731783",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998732025",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998731915",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998732064",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998731731",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998731753",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998732459",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998732171",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998732490",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998732389",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8487512222",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998732607",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998732444",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998731870",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998732026",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998732176",
+      "https://github.com/r-universe/r-multiverse/actions/runs/9005231218",
+      "https://github.com/r-universe/r-multiverse/actions/runs/9140511697",
+      "https://github.com/r-universe/r-multiverse/actions/runs/8998732437"
+    ),
+    "_indexed" = c(
+      FALSE, TRUE, FALSE, TRUE, TRUE, FALSE,
+      FALSE, TRUE, FALSE, FALSE, NA, TRUE, TRUE, TRUE, FALSE, FALSE,
+      TRUE, TRUE, FALSE
+    ),
+    "_binaries" = list(
+      list(), list(), list(),
+      list(), list(), list(), list(), list(), list(), list(),
+      list(), list(), list(), list(), list(), list(), list(),
+      list(), list()
+    ),
+    "_failure" = structure(
+      list(
+        buildurl = c(
+          NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+          paste0(
+            "https://github.com/r-universe/r-multiverse",
+            "/actions/runs/8487512222"
+          ),
+          NA, NA, NA, NA, NA, NA, NA, NA
+        )
+      ),
+      class = "data.frame",
+      row.names = c(NA, 19L)
+    )
+  ),
+  class = "data.frame",
+  row.names = c(NA, 19L)
+)
+
+mock_meta_packages <- structure(
+  list(
+    package = c(
+      "SBC", "audio.vadwebrtc", "audio.whisper",
+      "cmdstanr", "duckdb", "httpgd", "multitools", "multiverse.internals",
+      "nanonext", "polars", "secretbase", "stantargets", "string2path",
+      "targetsketch", "tidypolars", "tidytensor", "tinytest", "zstdlite"
+    ),
+    version = c(
+      "0.3.0.9000", "0.2", "0.4.1", "0.8.0", "0.10.1",
+      "2.0.1", "0.1.0", "0.1.4", "1.0.0", "0.16.4", "0.5.0", "0.1.1",
+      "0.1.6", "0.0.1", "0.7.0", "1.0.0", "1.4.1.1", "0.2.6"
+    ),
+    remotes = list(
+      NULL, NULL, "bnosac/audio.vadwebrtc", NULL, NULL, NULL, NULL,
+      NULL, NULL, NULL, NULL,
+      c("hyunjimoon/SBC", "stan-dev/cmdstanr", ""),
+      NULL, NULL, "markvanderloo/tinytest/pkg", NULL, NULL, NULL
+    )
+  ),
+  row.names = c(NA, 18L),
+  class = "data.frame"
+)
+
+mock_versions <- function() {
+  lines <- c(
+    "[",
+    " {",
+    " \"package\": \"package_unmodified\",",
+    " \"version_current\": \"1.0.0\",",
+    " \"hash_current\": \"hash_1.0.0\",",
+    " \"version_highest\": \"1.0.0\",",
+    " \"hash_highest\": \"hash_1.0.0\"",
+    " },",
+    " {",
+    " \"package\": \"version_decremented\",",
+    " \"version_current\": \"0.0.1\",",
+    " \"hash_current\": \"hash_0.0.1\",",
+    " \"version_highest\": \"1.0.0\",",
+    " \"hash_highest\": \"hash_1.0.0\"",
+    " },",
+    " {",
+    " \"package\": \"version_incremented\",",
+    " \"version_current\": \"2.0.0\",",
+    " \"hash_current\": \"hash_2.0.0\",",
+    " \"version_highest\": \"2.0.0\",",
+    " \"hash_highest\": \"hash_2.0.0\"",
+    " },",
+    " {",
+    " \"package\": \"version_unmodified\",",
+    " \"version_current\": \"1.0.0\",",
+    " \"hash_current\": \"hash_1.0.0-modified\",",
+    " \"version_highest\": \"1.0.0\",",
+    " \"hash_highest\": \"hash_1.0.0\"",
+    " }",
+    "]"
+  )
+  versions <- tempfile()
+  writeLines(lines, versions)
+  versions
+}
diff --git a/tests/testthat/test-issues_checks.R b/tests/testthat/test-issues_checks.R
new file mode 100644
index 0000000..5babb1e
--- /dev/null
+++ b/tests/testthat/test-issues_checks.R
@@ -0,0 +1,52 @@
+test_that("issues_checks() mocked", {
+  issues <- issues_checks(meta = mock_meta_checks)
+  url <- "https://github.com/r-universe/r-multiverse/actions/runs"
+  expected <- list(
+    httpgd = list(
+      "_linuxdevel" = "success", "_macbinary" = "success",
+      "_wasmbinary" = "none", "_winbinary" = "success", "_status" = "success",
+      "_buildurl" = file.path(url, "8998732459")
+    ),
+    INLA = list(
+      "_linuxdevel" = "src-failure", "_macbinary" = "src-failure",
+      "_wasmbinary" = "src-failure", "_winbinary" = "src-failure",
+      "_status" = "src-failure",
+      "_buildurl" = file.path(url, "8487512222")
+    ),
+    polars = list(
+      "_linuxdevel" = "failure", "_macbinary" = "arm64-failure",
+      "_wasmbinary" = "none", "_winbinary" = "success", "_status" = "success",
+      "_buildurl" = file.path(url, "9005231218")
+    ),
+    SBC = list(
+      "_linuxdevel" = "failure", "_macbinary" = "success",
+      "_wasmbinary" = "success", "_winbinary" = "success",
+      "_status" = "failure",
+      "_buildurl" = file.path(url, "8998731731")
+    ),
+    stantargets = list(
+      "_linuxdevel" = "failure", "_macbinary" = "success",
+      "_wasmbinary" = "success", "_winbinary" = "success",
+      "_status" = "success",
+      "_buildurl" = file.path(url, "8998732490")
+    ),
+    string2path = list(
+      "_linuxdevel" = "success", "_macbinary" = "success",
+      "_wasmbinary" = "none", "_winbinary" = "success", "_status" = "success",
+      "_buildurl" = file.path(url, "8998732437")
+    ),
+    tidytensor = list(
+      "_linuxdevel" = "failure", "_macbinary" = "success",
+      "_wasmbinary" = "success", "_winbinary" = "success",
+      "_status" = "failure",
+      "_buildurl" = file.path(url, "8998732025")
+    )
+  )
+  expect_equal(issues[order(names(issues))], expected[order(names(expected))])
+})
+
+test_that("issues_checks() on a small repo", {
+  meta <- meta_checks(repo = "https://wlandau.r-universe.dev")
+  issues <- issues_checks(meta = meta)
+  expect_true(is.list(issues))
+})
diff --git a/tests/testthat/test-issues_descriptions.R b/tests/testthat/test-issues_descriptions.R
new file mode 100644
index 0000000..1ccd4a2
--- /dev/null
+++ b/tests/testthat/test-issues_descriptions.R
@@ -0,0 +1,17 @@
+test_that("issues_descriptions() mocked", {
+  issues <- issues_descriptions(meta = mock_meta_packages)
+  expected <- list(
+    audio.whisper = list(remotes = "bnosac/audio.vadwebrtc"),
+    stantargets = list(
+      remotes = c("hyunjimoon/SBC", "stan-dev/cmdstanr")
+    ),
+    tidypolars = list(remotes = "markvanderloo/tinytest/pkg")
+  )
+  expect_equal(issues, expected)
+})
+
+test_that("issues_descriptions() on a small repo", {
+  meta <- meta_packages(repo = "https://wlandau.r-universe.dev")
+  issues <- issues_descriptions(meta = meta)
+  expect_true(is.list(issues))
+})
diff --git a/tests/testthat/test-issues_versions.R b/tests/testthat/test-issues_versions.R
new file mode 100644
index 0000000..12816c8
--- /dev/null
+++ b/tests/testthat/test-issues_versions.R
@@ -0,0 +1,58 @@
+test_that("issues_versions() mocked", {
+  # Temporary files used in the mock test.
+  versions <- tempfile()
+  # First update to the manifest.
+  contents <- data.frame(
+    package = c(
+      "package_unmodified",
+      "version_decremented",
+      "version_incremented",
+      "version_unmodified"
+    ),
+    version_current = rep("1.0.0", 4L),
+    hash_current = rep("hash_1.0.0", 4L)
+  )
+  record_versions(versions = versions, current = contents)
+  expect_equal(unname(issues_versions(versions)), list())
+  # Update the manifest after no changes to packages or versions.
+  suppressMessages(
+    record_versions(versions = versions, current = contents)
+  )
+  expect_equal(unname(issues_versions(versions)), list())
+  # Update the packages in all the ways indicated above.
+  index <- contents$package == "version_decremented"
+  contents$version_current[index] <- "0.0.1"
+  contents$hash_current[index] <- "hash_0.0.1"
+  index <- contents$package == "version_incremented"
+  contents$version_current[index] <- "2.0.0"
+  contents$hash_current[index] <- "hash_2.0.0"
+  index <- contents$package == "version_unmodified"
+  contents$version_current[index] <- "1.0.0"
+  contents$hash_current[index] <- "hash_1.0.0-modified"
+  for (index in seq_len(2L)) {
+    record_versions(
+      versions = versions,
+      current = contents
+    )
+    out <- issues_versions(versions)
+    expect_equal(
+      out,
+      list(
+        version_decremented = list(
+          version_current = "0.0.1",
+          hash_current = "hash_0.0.1",
+          version_highest = "1.0.0",
+          hash_highest = "hash_1.0.0"
+        ),
+        version_unmodified = list(
+          version_current = "1.0.0",
+          hash_current = "hash_1.0.0-modified",
+          version_highest = "1.0.0",
+          hash_highest = "hash_1.0.0"
+        )
+      )
+    )
+  }
+  # Remove temporary files
+  unlink(versions)
+})
diff --git a/tests/testthat/test-meta_checks.R b/tests/testthat/test-meta_checks.R
new file mode 100644
index 0000000..5720e15
--- /dev/null
+++ b/tests/testthat/test-meta_checks.R
@@ -0,0 +1,14 @@
+test_that("meta_checks()", {
+  out <- meta_checks(repo = "https://wlandau.r-universe.dev")
+  expect_true(is.data.frame(out))
+  expect_gt(nrow(out), 1L)
+  fields <- c(
+    "_status",
+    "_winbinary",
+    "_macbinary",
+    "_wasmbinary",
+    "_linuxdevel",
+    "_buildurl"
+  )
+  expect_true(all(fields %in% colnames(out)))
+})
diff --git a/tests/testthat/test-meta_packages.R b/tests/testthat/test-meta_packages.R
new file mode 100644
index 0000000..712844f
--- /dev/null
+++ b/tests/testthat/test-meta_packages.R
@@ -0,0 +1,11 @@
+test_that("meta_packages()", {
+  out <- meta_packages(repo = "https://wlandau.r-universe.dev")
+  expect_true(is.data.frame(out))
+  expect_gt(nrow(out), 1L)
+  fields <- c(
+    "package",
+    "version",
+    "remotesha"
+  )
+  expect_true(all(fields %in% colnames(out)))
+})
diff --git a/tests/testthat/test-record_issues.R b/tests/testthat/test-record_issues.R
index 2e1a4eb..ff2db97 100644
--- a/tests/testthat/test-record_issues.R
+++ b/tests/testthat/test-record_issues.R
@@ -1,142 +1,170 @@
-test_that("version_issues() in a mock repo", {
-  # Temporary files used in the mock test.
-  manifest <- tempfile()
-  # First update to the manifest.
-  contents <- data.frame(
-    package = c(
-      "package_unmodified",
-      "version_decremented",
-      "version_incremented",
-      "version_unmodified"
+test_that("record_issues() mocked", {
+  output <- tempfile()
+  record_issues(
+    versions = mock_versions(),
+    mock = list(
+      checks = mock_meta_checks,
+      packages = mock_meta_packages,
+      today = "2024-01-01"
     ),
-    version_current = rep("1.0.0", 4L),
-    hash_current = rep("hash_1.0.0", 4L)
+    output = output
   )
-  record_versions(manifest = manifest, current = contents)
   expect_equal(
-    version_issues(manifest),
-    data.frame(
-      package = character(0L),
-      version_current = character(0L),
-      hash_current = character(0L)
+    sort(c(list.files(output))),
+    sort(
+      c(
+        "audio.whisper",
+        "httpgd",
+        "INLA",
+        "polars",
+        "SBC",
+        "stantargets",
+        "string2path",
+        "tidypolars",
+        "tidytensor",
+        "version_decremented",
+        "version_unmodified"
+      )
     )
   )
-  # Update the manifest after no changes to packages or versions.
-  suppressMessages(
-    record_versions(manifest = manifest, current = contents)
-  )
+  runs <- "https://github.com/r-universe/r-multiverse/actions/runs"
   expect_equal(
-    version_issues(manifest),
-    data.frame(
-      package = character(0L),
-      version_current = character(0L),
-      hash_current = character(0L),
-      version_highest = character(0L),
-      hash_highest = character(0L)
+    jsonlite::read_json(file.path(output, "INLA"), simplifyVector = TRUE),
+    list(
+      checks = list(
+        "_linuxdevel" = "src-failure",
+        "_macbinary" = "src-failure",
+        "_wasmbinary" = "src-failure",
+        "_winbinary" = "src-failure",
+        "_status" = "src-failure",
+        "_buildurl" = file.path(runs, "8487512222")
+      ),
+      date = "2024-01-01"
     )
   )
-  # Update the packages in all the ways indicated above.
-  index <- contents$package == "version_decremented"
-  contents$version_current[index] <- "0.0.1"
-  contents$hash_current[index] <- "hash_0.0.1"
-  index <- contents$package == "version_incremented"
-  contents$version_current[index] <- "2.0.0"
-  contents$hash_current[index] <- "hash_2.0.0"
-  index <- contents$package == "version_unmodified"
-  contents$version_current[index] <- "1.0.0"
-  contents$hash_current[index] <- "hash_1.0.0-modified"
-  for (index in seq_len(2L)) {
-    record_versions(
-      manifest = manifest,
-      current = contents
-    )
-    out <- version_issues(manifest)
-    rownames(out) <- NULL
-    expect_equal(
-      out,
-      data.frame(
-        package = c("version_decremented", "version_unmodified"),
-        version_current = c("0.0.1", "1.0.0"),
-        hash_current = c("hash_0.0.1", "hash_1.0.0-modified"),
-        version_highest = c("1.0.0", "1.0.0"),
-        hash_highest = c("hash_1.0.0", "hash_1.0.0"),
-        version_okay = c(FALSE, FALSE)
-      )
-    )
-  }
-  # Remove temporary files
-  unlink(manifest)
-})
-
-test_that("record_issues() in a mock repo", {
-  # Temporary files used in the mock test.
-  manifest <- tempfile()
-  output <- tempfile()
-  # First update to the manifest.
-  contents <- data.frame(
-    package = c(
-      "package_unmodified",
-      "version_decremented",
-      "version_incremented",
-      "version_unmodified"
+  expect_equal(
+    jsonlite::read_json(
+      file.path(output, "stantargets"),
+      simplifyVector = TRUE
     ),
-    version_current = rep("1.0.0", 4L),
-    hash_current = rep("hash_1.0.0", 4L)
-  )
-  record_versions(manifest = manifest, current = contents)
-  record_issues(manifest = manifest, output = output)
-  expect_equal(list.files(output), character(0L))
-  # Update the manifest after no changes to packages or versions.
-  suppressMessages(
-    record_versions(manifest = manifest, current = contents)
-  )
-  record_issues(manifest = manifest, output = output)
-  expect_equal(list.files(output), character(0L))
-  # Update the packages in all the ways indicated above.
-  index <- contents$package == "version_decremented"
-  contents$version_current[index] <- "0.0.1"
-  contents$hash_current[index] <- "hash_0.0.1"
-  index <- contents$package == "version_incremented"
-  contents$version_current[index] <- "2.0.0"
-  contents$hash_current[index] <- "hash_2.0.0"
-  index <- contents$package == "version_unmodified"
-  contents$version_current[index] <- "1.0.0"
-  contents$hash_current[index] <- "hash_1.0.0-modified"
-  for (index in seq_len(2L)) {
-    record_versions(
-      manifest = manifest,
-      current = contents
+    list(
+      checks = list(
+        "_linuxdevel" = "failure",
+        "_macbinary" = "success",
+        "_wasmbinary" = "success",
+        "_winbinary" = "success",
+        "_status" = "success",
+        "_buildurl" = file.path(runs, "8998732490")
+      ),
+      descriptions = list(
+        remotes = c("hyunjimoon/SBC", "stan-dev/cmdstanr")
+      ),
+      date = "2024-01-01"
     )
-    record_issues(manifest = manifest, output = output)
-    expect_equal(
-      sort(list.files(output)),
-      sort(c("version_decremented", "version_unmodified"))
-    )
-    out <- jsonlite::read_json(file.path(output, "version_decremented"))
-    expect_equal(
-      unlist(out, recursive = TRUE),
-      c(
-        package = "version_decremented",
+  )
+  expect_equal(
+    jsonlite::read_json(
+      file.path(output, "version_decremented"),
+      simplifyVector = TRUE
+    ),
+    list(
+      versions = list(
         version_current = "0.0.1",
         hash_current = "hash_0.0.1",
         version_highest = "1.0.0",
-        hash_highest = "hash_1.0.0",
-        version_okay = FALSE
-      )
+        hash_highest = "hash_1.0.0"
+      ),
+      date = "2024-01-01"
     )
-    out <- jsonlite::read_json(file.path(output, "version_unmodified"))
-    expect_equal(
-      unlist(out, recursive = TRUE),
-      c(
-        package = "version_unmodified",
+  )
+  expect_equal(
+    jsonlite::read_json(
+      file.path(output, "version_unmodified"),
+      simplifyVector = TRUE
+    ),
+    list(
+      versions = list(
         version_current = "1.0.0",
         hash_current = "hash_1.0.0-modified",
         version_highest = "1.0.0",
-        hash_highest = "hash_1.0.0",
-        version_okay = FALSE
-      )
+        hash_highest = "hash_1.0.0"
+      ),
+      date = "2024-01-01"
     )
+  )
+})
+
+test_that("record_issues() date works", {
+  output <- tempfile()
+  record_issues(
+    versions = mock_versions(),
+    mock = list(
+      checks = mock_meta_checks,
+      packages = mock_meta_packages,
+      today = "2024-01-01"
+    ),
+    output = output
+  )
+  record_issues(
+    versions = mock_versions(),
+    mock = list(
+      checks = mock_meta_checks,
+      packages = mock_meta_packages
+    ),
+    output = output
+  )
+  for (file in list.files(output, full.names = TRUE)) {
+    date <- jsonlite::read_json(file, simplifyVector = TRUE)$date
+    expect_equal(date, "2024-01-01")
   }
-  # Remove temporary files
-  unlink(manifest)
+  never_fixed <- c(
+    "httpgd",
+    "INLA",
+    "stantargets",
+    "string2path",
+    "tidytensor",
+    "version_decremented"
+  )
+  once_fixed <- c(
+    "audio.whisper",
+    "polars",
+    "SBC",
+    "tidypolars",
+    "version_unmodified"
+  )
+  lapply(file.path(output, once_fixed), unlink)
+  record_issues(
+    versions = mock_versions(),
+    mock = list(
+      checks = mock_meta_checks,
+      packages = mock_meta_packages
+    ),
+    output = output
+  )
+  for (package in never_fixed) {
+    path <- file.path(output, package)
+    date <- jsonlite::read_json(path, simplifyVector = TRUE)$date
+    expect_equal(date, "2024-01-01")
+  }
+  today <- format(Sys.Date(), fmt = "yyyy-mm-dd")
+  for (package in once_fixed) {
+    path <- file.path(output, package)
+    date <- jsonlite::read_json(path, simplifyVector = TRUE)$date
+    expect_equal(date, today)
+  }
+})
+
+test_that("record_issues() on a small repo", {
+  output <- tempfile()
+  versions <- tempfile()
+  record_versions(
+    versions = versions,
+    repo = "https://wlandau.r-universe.dev"
+  )
+  record_issues(
+    repo = "https://wlandau.r-universe.dev",
+    versions = versions,
+    output = output
+  )
+  expect_true(dir.exists(output))
 })
diff --git a/tests/testthat/test-record_versions.R b/tests/testthat/test-record_versions.R
index 0e1a453..173de48 100644
--- a/tests/testthat/test-record_versions.R
+++ b/tests/testthat/test-record_versions.R
@@ -1,7 +1,7 @@
-test_that("record_versions() in a mock repo", {
+test_that("record_versions() mocked", {
   # Temporary files used in the mock test.
-  manifest <- tempfile()
-  # First update to the manifest.
+  versions <- tempfile()
+  # First update to the version manifest.
   contents <- data.frame(
     package = c(
       "package_unmodified",
@@ -13,10 +13,10 @@ test_that("record_versions() in a mock repo", {
     hash_current = rep("hash_1.0.0", 4L)
   )
   record_versions(
-    manifest = manifest,
+    versions = versions,
     current = contents
   )
-  written <- jsonlite::read_json(manifest)
+  written <- jsonlite::read_json(versions)
   expected <- list(
     list(
       package = "package_unmodified",
@@ -43,11 +43,11 @@ test_that("record_versions() in a mock repo", {
   # Update the manifest after no changes to packages or versions.
   suppressMessages(
     record_versions(
-      manifest = manifest,
+      versions = versions,
       current = contents
     )
   )
-  written <- jsonlite::read_json(manifest)
+  written <- jsonlite::read_json(versions)
   expected <- list(
     list(
       package = "package_unmodified",
@@ -91,10 +91,10 @@ test_that("record_versions() in a mock repo", {
   contents$hash_current[index] <- "hash_1.0.0-modified"
   for (index in seq_len(2L)) {
     record_versions(
-      manifest = manifest,
+      versions = versions,
       current = contents
     )
-    written <- jsonlite::read_json(manifest)
+    written <- jsonlite::read_json(versions)
     expected <- list(
       list(
         package = "package_unmodified",
@@ -128,34 +128,34 @@ test_that("record_versions() in a mock repo", {
     expect_true(identical(written, expected))
   }
   # Remove temporary files
-  unlink(manifest)
+  unlink(versions)
 })
 
-test_that("manifest can be created and updated from an actual repo", {
-  manifest <- tempfile()
+test_that("version manifest can be created and updated from an actual repo", {
+  versions <- tempfile()
   temp <- utils::capture.output(
     suppressMessages(
       record_versions(
-        manifest = manifest,
+        versions = versions,
         repo = "https://wlandau.r-universe.dev"
       )
     )
   )
-  expect_true(file.exists(manifest))
-  contents <- do.call(vctrs::vec_rbind, jsonlite::read_json(manifest))
+  expect_true(file.exists(versions))
+  contents <- do.call(vctrs::vec_rbind, jsonlite::read_json(versions))
   contents <- lapply(contents, as.character)
   lapply(contents, function(x) expect_true(!anyNA(x)))
   temp <- utils::capture.output(
     suppressMessages(
       record_versions(
-        manifest = manifest,
+        versions = versions,
         repo = "https://wlandau.r-universe.dev"
       )
     )
   )
-  contents <- jsonlite::read_json(manifest)
+  contents <- jsonlite::read_json(versions)
   expect_true(is.character(contents[[1L]]$package))
   expect_true(length(contents[[1L]]$package) == 1L)
-  expect_true(file.exists(manifest))
-  unlink(manifest)
+  expect_true(file.exists(versions))
+  unlink(versions)
 })