diff --git a/libs/ruby/warp_engine/README.md b/libs/ruby/warp_engine/README.md
index 5aa4cba..78b1feb 100644
--- a/libs/ruby/warp_engine/README.md
+++ b/libs/ruby/warp_engine/README.md
@@ -17,6 +17,9 @@ Repository: `https://git.teletypegames.org/engines/warp_engine`
   value object that knows its `label`, its `expected_kinds` and its updater
   `service`. Reference it instead of writing a platform list of your own —
   `PlatformLink::SUPPORTED_PLATFORMS` is kept as an alias of `Platform::NAMES`.
+- **Asset checklist**: `rake warp_engine:builds:check` prints, per software and
+  release, which release assets exist and which the platform's pipeline could
+  still deliver. See *Which assets are missing*.
 - **CI-callable updater**: your build pipeline uploads artifacts over HTTP
   and calls one endpoint — WarpEngine extracts archives, parses metadata
   and upserts the catalog records. Supported platforms out of the
@@ -310,6 +313,69 @@ accepts both:
 When switching to `:database`, create the tokens and move your pipelines to
 them first — the flip invalidates the shared secret immediately.
 
+## Which assets are missing (rake)
+
+A release is complete when it carries every asset kind its platform can
+produce. Nothing enforces that — a pipeline step can fail, a platform can gain
+a target, a title can be published from a laptop — so the engine ships a
+checklist:
+
+```
+$ bin/rails warp_engine:builds:check
+
+WarpEngine release asset coverage — latest release per software
+expected: the kinds a platform's updater registers · [ ] the CI builds it · [-] the CI does not, upload it by hand
+
+rabbitroller  ebitengine  v1.1.1  3/7
+  [x] html
+  [x] win_x64
+  [x] linux_x64
+  [ ] win_x86
+  [ ] linux_arm64
+  [-] mac_x64
+  [-] mac_arm64
+
+The CI can build these and the release does not have them:
+  rabbitroller v1.1.1 (ebitengine): win_x86, linux_arm64
+
+12 softwares, 12 releases, 61/78 assets present, 11 missing from CI-built kinds
+4 softwares are missing an asset the CI builds
+2 assets are expected but this CI does not build them
+```
+
+Three markers, three different facts:
+
+| Marker | Meaning |
+| --- | --- |
+| `[x]` | the release has this asset |
+| `[ ]` | the platform expects it **and** the CI pipeline builds it — a real gap |
+| `[-]` | the platform expects it but this CI cannot build it (ebitengine's macOS targets need osxcross) — a manual upload, or nothing |
+| `[+]` | the release has an asset the platform does not expect |
+
+The expectations come from two places, and the difference is the point:
+`WarpEngine::Platform#expected_kinds` is what the **updater** can ingest, and
+the CI adapter's `built_kinds(platform)` is what the **pipeline** produces. An
+adapter that cannot answer (no CI configured, or a platform with no builder)
+returns nil, and then nothing is excused: every missing kind is reported as a
+gap.
+
+Options are environment variables, so the task composes in a shell:
+
+| Variable | Effect |
+| --- | --- |
+| `NAME=rabbitroller` | one software |
+| `PLATFORM=ebitengine` | one platform |
+| `RELEASES=all` | every release, not just the newest one per software |
+| `ONLY=missing` | only the releases that are short of a CI-built asset |
+| `STRICT=1` | exit non-zero when anything is missing (for CI) |
+
+The newest release is the newest non-`dev-` version, the same rule the catalog
+API uses when it names a title's latest release.
+
+The same numbers are available as objects: `WarpEngine::AssetCoverage.new(...)`
+answers `#rows`, `#missing_rows` and `#totals`, and
+`WarpEngine::AssetCoverageChecklist` is what renders them.
+
 ## CI
 
 Every CI feature — serving pipeline configs, syncing repositories, triggering
diff --git a/libs/ruby/warp_engine/app/presenters/warp_engine/asset_coverage_checklist.rb b/libs/ruby/warp_engine/app/presenters/warp_engine/asset_coverage_checklist.rb
new file mode 100644
index 0000000..789e097
--- /dev/null
+++ b/libs/ruby/warp_engine/app/presenters/warp_engine/asset_coverage_checklist.rb
@@ -0,0 +1,83 @@
+module WarpEngine
+  class AssetCoverageChecklist
+    MARKERS = {
+      present:    "[x]",
+      missing:    "[ ]",
+      manual:     "[-]",
+      unexpected: "[+]"
+    }.freeze
+
+    def initialize(coverage, only_missing: false)
+      @coverage = coverage
+      @only_missing = only_missing
+    end
+
+    attr_reader :coverage, :only_missing
+
+    def lines
+      [ *header, *body, *footer ]
+    end
+
+    def to_s = lines.join("\n")
+
+    private
+
+    def header
+      [
+        "WarpEngine release asset coverage — #{coverage.releases == :all ? 'every release' : 'latest release per software'}",
+        "expected: the kinds a platform's updater registers · #{MARKERS[:missing]} the CI builds it · " \
+        "#{MARKERS[:manual]} the CI does not, upload it by hand",
+        ""
+      ]
+    end
+
+    def body
+      shown = only_missing ? coverage.missing_rows : coverage.rows
+      return [ "Nothing to report.", "" ] if shown.empty?
+
+      shown.flat_map { |row| [ title(row), *checklist(row), "" ] }
+    end
+
+    def title(row)
+      parts = [ row.software.name, row.platform&.name || "unknown platform" ]
+      parts << (row.released? ? "v#{row.version}" : "no release")
+      parts << ratio(row) if row.released? && row.expected.any?
+      parts.join("  ")
+    end
+
+    def ratio(row) = "#{(row.expected & row.present).size}/#{row.expected.size}"
+
+    def checklist(row)
+      return [ "  (this platform is not in the registry, so nothing is expected)" ] if row.unknown_platform?
+      return [ "  (no release to check)" ] unless row.released?
+      return [ "  (this platform expects no assets)" ] if row.expected.empty? && row.present.empty?
+
+      row.expected.map { |kind| "  #{MARKERS[row.state_of(kind)]} #{kind}" } +
+        row.unexpected.map { |kind| "  #{MARKERS[:unexpected]} #{kind} (not expected on #{row.platform&.name})" }
+    end
+
+    def footer
+      totals = coverage.totals
+      lines = []
+
+      if coverage.missing_rows.any? && !only_missing
+        lines << "The CI can build these and the release does not have them:"
+        lines += coverage.missing_rows.map do |row|
+          "  #{row.software.name} v#{row.version} (#{row.platform&.name}): #{row.buildable_missing.join(', ')}"
+        end
+        lines << ""
+      end
+
+      lines << format(
+        "%d softwares, %d releases, %d/%d assets present, %d missing from CI-built kinds",
+        totals[:softwares], totals[:releases], totals[:present], totals[:expected], totals[:missing]
+      )
+      lines << "#{totals[:incomplete_softwares]} softwares are missing an asset the CI builds" if totals[:missing].positive?
+      lines << "#{totals[:manual_missing]} assets are expected but this CI does not build them" if totals[:manual_missing].positive?
+      lines << "#{totals[:without_release]} softwares have no release yet" if totals[:without_release].positive?
+      lines << "#{totals[:unknown_platform]} softwares are on a platform the registry does not know" if totals[:unknown_platform].positive?
+      lines << "#{totals[:unexpected]} assets are not expected on their platform" if totals[:unexpected].positive?
+      lines
+    end
+  end
+end
diff --git a/libs/ruby/warp_engine/app/services/warp_engine/asset_coverage.rb b/libs/ruby/warp_engine/app/services/warp_engine/asset_coverage.rb
new file mode 100644
index 0000000..b8bad94
--- /dev/null
+++ b/libs/ruby/warp_engine/app/services/warp_engine/asset_coverage.rb
@@ -0,0 +1,121 @@
+module WarpEngine
+  class AssetCoverage
+    Row = Struct.new(:software, :release, :platform, :expected, :present, :ci_kinds, keyword_init: true) do
+      def missing = expected - present
+
+      def buildable_missing
+        return missing if ci_kinds.nil?
+
+        missing & ci_kinds
+      end
+
+      def manual_missing = missing - buildable_missing
+
+      def unexpected = present - expected
+
+      def complete? = release.present? && missing.empty?
+
+      def actionable? = release.present? && buildable_missing.any?
+
+      def unknown_platform? = platform.nil?
+
+      def released? = release.present?
+
+      def version = release&.version
+
+      def state_of(kind)
+        return :present if present.include?(kind)
+        return :manual if ci_kinds && !ci_kinds.include?(kind)
+
+        :missing
+      end
+    end
+
+    def initialize(name: nil, platform: nil, releases: :latest)
+      @name = name.presence
+      @platform = platform.presence
+      @releases = releases == :all ? :all : :latest
+    end
+
+    attr_reader :name, :platform, :releases
+
+    def rows
+      @rows ||= scope.flat_map { |software| rows_for(software) }
+    end
+
+    def missing_rows = rows.select(&:actionable?)
+
+    def incomplete_rows = rows.select { |row| row.released? && !row.complete? }
+
+    def totals
+      counted = rows.select(&:released?)
+
+      {
+        softwares:            rows.map { |row| row.software.id }.uniq.size,
+        releases:             counted.size,
+        expected:             counted.sum { |row| row.expected.size },
+        present:              counted.sum { |row| (row.expected & row.present).size },
+        missing:              counted.sum { |row| row.buildable_missing.size },
+        manual_missing:       counted.sum { |row| row.manual_missing.size },
+        unexpected:           counted.sum { |row| row.unexpected.size },
+        incomplete_softwares: missing_rows.map { |row| row.software.id }.uniq.size,
+        without_release:      rows.count { |row| !row.released? },
+        unknown_platform:     rows.count(&:unknown_platform?)
+      }
+    end
+
+    private
+
+    def scope
+      relation = WarpEngine::Software.order(:name).includes(releases: :release_assets)
+      relation = relation.where(name: name) if name
+      relation = relation.where(platform: platform) if platform
+      relation
+    end
+
+    def rows_for(software)
+      expected = expected_kinds(software)
+      selected = select_releases(software.releases.to_a)
+      return [ row(software, nil, expected) ] if selected.empty?
+
+      selected.map { |release| row(software, release, expected) }
+    end
+
+    def row(software, release, expected)
+      Row.new(
+        software: software,
+        release:  release,
+        platform: WarpEngine::Platform.find(software.platform),
+        expected: expected,
+        present:  release ? release.release_assets.map(&:kind).uniq : [],
+        ci_kinds: ci_kinds(software.platform)
+      )
+    end
+
+    def ci_kinds(platform)
+      @ci_kinds ||= {}
+      return @ci_kinds[platform] if @ci_kinds.key?(platform)
+
+      ci = WarpEngine.ci
+      @ci_kinds[platform] = ci.respond_to?(:built_kinds) ? ci.built_kinds(platform) : nil
+    end
+
+    def expected_kinds(software)
+      WarpEngine::Platform.find(software.platform)&.expected_kinds || []
+    end
+
+    def select_releases(all)
+      return sorted(all) if releases == :all
+
+      [ latest(all) ].compact
+    end
+
+    def sorted(all) = all.sort_by { |release| [ release.created_at || Time.at(0), release.id ] }.reverse
+
+    def latest(all)
+      candidates = all.reject { |release| release.version.to_s.start_with?("dev-") }
+      candidates = all if candidates.empty?
+      sorted(candidates).first
+    end
+  end
+end
diff --git a/libs/ruby/warp_engine/lib/tasks/warp_engine_builds.rake b/libs/ruby/warp_engine/lib/tasks/warp_engine_builds.rake
new file mode 100644
index 0000000..d5be640
--- /dev/null
+++ b/libs/ruby/warp_engine/lib/tasks/warp_engine_builds.rake
@@ -0,0 +1,22 @@
+namespace :warp_engine do
+  namespace :builds do
+    desc "Checklist of which release assets exist and which the platform expects " \
+         "(NAME=slug PLATFORM=godot RELEASES=all ONLY=missing STRICT=1)"
+    task check: :environment do
+      coverage = WarpEngine::AssetCoverage.new(
+        name:     ENV["NAME"],
+        platform: ENV["PLATFORM"],
+        releases: ENV["RELEASES"] == "all" ? :all : :latest
+      )
+
+      checklist = WarpEngine::AssetCoverageChecklist.new(
+        coverage, only_missing: ENV["ONLY"] == "missing"
+      )
+      puts checklist.to_s
+
+      if ENV["STRICT"] == "1" && coverage.totals[:missing].positive?
+        abort "\nSTRICT: #{coverage.totals[:missing]} expected assets are missing."
+      end
+    end
+  end
+end
diff --git a/libs/ruby/warp_engine/lib/warp_engine/ci.rb b/libs/ruby/warp_engine/lib/warp_engine/ci.rb
index 6b34963..108b17a 100644
--- a/libs/ruby/warp_engine/lib/warp_engine/ci.rb
+++ b/libs/ruby/warp_engine/lib/warp_engine/ci.rb
@@ -43,6 +43,7 @@ module WarpEngine
       def name = "none"
       def configured? = false
       def platforms = {}
+      def built_kinds(_platform) = nil
       def update_server = nil
 
       def repos                              = raise(NotConfigured, MESSAGE)
diff --git a/libs/ruby/warp_engine/lib/warp_engine/ci/woodpecker/adapter.rb b/libs/ruby/warp_engine/lib/warp_engine/ci/woodpecker/adapter.rb
index 28434d5..8bc411f 100644
--- a/libs/ruby/warp_engine/lib/warp_engine/ci/woodpecker/adapter.rb
+++ b/libs/ruby/warp_engine/lib/warp_engine/ci/woodpecker/adapter.rb
@@ -28,6 +28,8 @@ module WarpEngine
 
         def platforms = @config.platforms
 
+        def built_kinds(platform) = @config.built_kinds(platform)
+
         def client
           @client ||= Client.new(url: @url, token: @api_token)
         end
diff --git a/libs/ruby/warp_engine/lib/warp_engine/ci/woodpecker/pipeline_config.rb b/libs/ruby/warp_engine/lib/warp_engine/ci/woodpecker/pipeline_config.rb
index 6e6718e..e17309e 100644
--- a/libs/ruby/warp_engine/lib/warp_engine/ci/woodpecker/pipeline_config.rb
+++ b/libs/ruby/warp_engine/lib/warp_engine/ci/woodpecker/pipeline_config.rb
@@ -7,6 +7,16 @@ module WarpEngine
       class PipelineConfig
         PLATFORM_FORMAT = /\A[a-z0-9_-]+\z/
 
+        BUILT_KINDS = {
+          "tic80"      => %w[cartridge source html docs win_x64 linux_x64 mac_x64],
+          "ebitengine" => %w[html win_x86 win_x64 linux_x64 linux_arm64],
+          "godot"      => %w[html win_x86 win_x64 linux_x64 mac_universal],
+          "love"       => %w[html win_x64 linux_x64 mac_universal],
+          "bevy"       => %w[html win_x64 linux_x64 linux_arm64],
+          "c64"        => %w[cartridge],
+          "phaser"     => %w[html]
+        }.freeze
+
         def initialize(platforms: {})
           @platforms = platforms.to_h { |key, spec| [ key.to_s, spec.to_h.symbolize_keys ] }
         end
@@ -33,6 +43,13 @@ module WarpEngine
           )
         end
 
+        def built_kinds(platform)
+          platform = platform.to_s
+          return nil unless @platforms.key?(platform)
+
+          BUILT_KINDS[platform]
+        end
+
         def self.templates_dir
           Pathname.new(__dir__).join("platforms")
         end
diff --git a/libs/ruby/warp_engine/spec/ci/built_kinds_spec.rb b/libs/ruby/warp_engine/spec/ci/built_kinds_spec.rb
new file mode 100644
index 0000000..7d311f5
--- /dev/null
+++ b/libs/ruby/warp_engine/spec/ci/built_kinds_spec.rb
@@ -0,0 +1,54 @@
+require "rails_helper"
+
+RSpec.describe WarpEngine::CI::Woodpecker::PipelineConfig do
+  BUILT_KINDS = described_class::BUILT_KINDS
+
+  def self.fragment_for(kind)
+    case kind
+    when "html" then ".html.zip"
+    when "docs" then "-docs.zip"
+    when "cartridge", "source" then nil
+    else kind.tr("_", "-")
+    end
+  end
+
+  def config_for(platform)
+    described_class.new(platforms: { platform => { builder: "builder:latest", exporter: "exporter:latest" } })
+  end
+
+  it "knows every platform in the registry" do
+    expect(BUILT_KINDS.keys).to match_array(WarpEngine::Platform.names)
+  end
+
+  WarpEngine::Platform::NAMES.each do |platform|
+    context platform do
+      let(:kinds) { BUILT_KINDS.fetch(platform) }
+      let(:rendered) do
+        config_for(platform).render(platform: platform, name: "example", update_server: "https://example.test")
+      end
+
+      it "claims only kinds the updater knows how to ingest" do
+        expect(kinds - WarpEngine::Platform.find(platform).expected_kinds).to be_empty
+      end
+
+      it "claims only kinds the pipeline actually packages" do
+        kinds.each do |kind|
+          fragment = self.class.fragment_for(kind)
+          next if fragment.nil?
+
+          expect(rendered).to include(fragment), "#{platform}: nothing in the pipeline produces #{kind}"
+        end
+      end
+    end
+  end
+
+  describe "#built_kinds" do
+    it "answers with the kinds of a platform it has a builder for" do
+      expect(config_for("tic80").built_kinds("tic80")).to include("cartridge", "html", "win_x64")
+    end
+
+    it "answers nil for a platform with no builder configured, so nothing is excused" do
+      expect(config_for("tic80").built_kinds("godot")).to be_nil
+    end
+  end
+end
diff --git a/libs/ruby/warp_engine/spec/presenters/asset_coverage_checklist_spec.rb b/libs/ruby/warp_engine/spec/presenters/asset_coverage_checklist_spec.rb
new file mode 100644
index 0000000..cbb4a09
--- /dev/null
+++ b/libs/ruby/warp_engine/spec/presenters/asset_coverage_checklist_spec.rb
@@ -0,0 +1,52 @@
+require "rails_helper"
+
+RSpec.describe WarpEngine::AssetCoverageChecklist do
+  let(:software) { create(:software, name: "rabbitroller", platform: "ebitengine") }
+
+  before do
+    release = create(:release, software: software, version: "1.1.1")
+    WarpEngine::ReleaseAsset.create!(release: release, kind: "html", path: "/s/rabbitroller-1.1.1")
+
+    ci = instance_double(WarpEngine::CI::Woodpecker::Adapter)
+    allow(ci).to receive(:built_kinds) { |platform| WarpEngine::CI::Woodpecker::PipelineConfig::BUILT_KINDS[platform] }
+    allow(WarpEngine).to receive(:ci).and_return(ci)
+  end
+
+  def output(**options) = described_class.new(WarpEngine::AssetCoverage.new(**options)).to_s
+
+  it "checks off what is there and leaves the rest open" do
+    lines = output.lines.map(&:chomp)
+
+    expect(lines).to include("rabbitroller  ebitengine  v1.1.1  1/7")
+    expect(lines).to include("  [x] html")
+    expect(lines).to include("  [ ] linux_arm64")
+    expect(lines).to include("  [-] mac_arm64")
+  end
+
+  it "lists what the CI could build and the release does not have" do
+    expect(output).to include("The CI can build these and the release does not have them:")
+    expect(output).to include("rabbitroller v1.1.1 (ebitengine): win_x86, win_x64, linux_x64, linux_arm64")
+  end
+
+  it "counts the assets and says how many the CI does not build" do
+    expect(output).to include("1 softwares, 1 releases, 1/7 assets present, 4 missing from CI-built kinds")
+    expect(output).to include("2 assets are expected but this CI does not build them")
+  end
+
+  it "shows only the incomplete releases when asked" do
+    complete = create(:software, name: "pong", platform: "c64")
+    release = create(:release, software: complete, version: "0.1")
+    WarpEngine::ReleaseAsset.create!(release: release, kind: "cartridge", path: "/s/pong-0.1.prg")
+
+    text = described_class.new(WarpEngine::AssetCoverage.new, only_missing: true).to_s
+
+    expect(text).to include("rabbitroller")
+    expect(text).not_to include("pong")
+  end
+
+  it "says so when there is nothing to report" do
+    text = described_class.new(WarpEngine::AssetCoverage.new(name: "nothing-here")).to_s
+
+    expect(text).to include("Nothing to report.")
+  end
+end
diff --git a/libs/ruby/warp_engine/spec/services/asset_coverage_spec.rb b/libs/ruby/warp_engine/spec/services/asset_coverage_spec.rb
new file mode 100644
index 0000000..495add0
--- /dev/null
+++ b/libs/ruby/warp_engine/spec/services/asset_coverage_spec.rb
@@ -0,0 +1,139 @@
+require "rails_helper"
+
+RSpec.describe WarpEngine::AssetCoverage do
+  def release_with(software:, version:, kinds:, created_at: Time.current)
+    release = create(:release, software: software, version: version, created_at: created_at)
+    kinds.each { |kind| WarpEngine::ReleaseAsset.create!(release: release, kind: kind, path: "/s/#{version}-#{kind}") }
+    release
+  end
+
+  describe "#rows" do
+    it "says which expected kinds are present and which are missing" do
+      software = create(:software, name: "impostor", platform: "tic80")
+      release_with(software: software, version: "1.0", kinds: %w[cartridge source html])
+
+      row = described_class.new.rows.first
+
+      expect(row.software).to eq(software)
+      expect(row.expected).to eq(WarpEngine::Platform.find("tic80").expected_kinds)
+      expect(row.present).to contain_exactly("cartridge", "source", "html")
+      expect(row.missing).to contain_exactly("docs", "win_x64", "linux_x64", "mac_x64")
+      expect(row).not_to be_complete
+    end
+
+    it "calls a release with every expected asset complete" do
+      software = create(:software, name: "pong", platform: "c64")
+      release_with(software: software, version: "0.1.0", kinds: %w[cartridge])
+
+      row = described_class.new.rows.first
+
+      expect(row).to be_complete
+      expect(row.missing).to be_empty
+      expect(row).not_to be_actionable
+    end
+
+    it "reports an asset the platform does not expect" do
+      software = create(:software, name: "phasergame", platform: "phaser")
+      release_with(software: software, version: "1.0", kinds: %w[html win_x64])
+
+      row = described_class.new.rows.first
+
+      expect(row.unexpected).to eq([ "win_x64" ])
+    end
+
+    it "reports a software with no release at all" do
+      create(:software, name: "empty", platform: "godot")
+
+      row = described_class.new.rows.first
+
+      expect(row).not_to be_released
+      expect(row).not_to be_actionable
+    end
+
+    it "expects nothing from a platform the registry does not know" do
+      software = create(:software, name: "amigagame", platform: "tic80")
+      software.update_column(:platform, "amiga")
+      release_with(software: software, version: "1.0", kinds: [])
+
+      row = described_class.new.rows.first
+
+      expect(row).to be_unknown_platform
+      expect(row.expected).to be_empty
+    end
+
+    it "checks the newest release by default, and every release on demand" do
+      software = create(:software, name: "rabbitroller", platform: "ebitengine")
+      release_with(software: software, version: "1.0.0", kinds: %w[html], created_at: 2.days.ago)
+      release_with(software: software, version: "1.1.1", kinds: %w[html win_x64], created_at: 1.day.ago)
+
+      expect(described_class.new.rows.map(&:version)).to eq([ "1.1.1" ])
+      expect(described_class.new(releases: :all).rows.map(&:version)).to eq([ "1.1.1", "1.0.0" ])
+    end
+
+    it "does not call a dev build the latest release" do
+      software = create(:software, name: "rabbitroller", platform: "ebitengine")
+      release_with(software: software, version: "1.1.1", kinds: %w[html], created_at: 2.days.ago)
+      release_with(software: software, version: "dev-abc123-master", kinds: %w[html], created_at: 1.hour.ago)
+
+      expect(described_class.new.rows.map(&:version)).to eq([ "1.1.1" ])
+    end
+
+    it "narrows to one software or one platform" do
+      create(:software, name: "impostor", platform: "tic80")
+      create(:software, name: "rabbitroller", platform: "ebitengine")
+
+      expect(described_class.new(name: "impostor").rows.map { |r| r.software.name }).to eq([ "impostor" ])
+      expect(described_class.new(platform: "ebitengine").rows.map { |r| r.software.name }).to eq([ "rabbitroller" ])
+    end
+  end
+
+  describe "what the CI can build" do
+    let(:software) { create(:software, name: "rabbitroller", platform: "ebitengine") }
+
+    before { release_with(software: software, version: "1.1.1", kinds: %w[html]) }
+
+    it "separates the kinds the pipeline builds from the ones it cannot" do
+      ci = instance_double(WarpEngine::CI::Woodpecker::Adapter)
+      allow(ci).to receive(:built_kinds).with("ebitengine")
+        .and_return(%w[html win_x86 win_x64 linux_x64 linux_arm64])
+      allow(WarpEngine).to receive(:ci).and_return(ci)
+
+      row = described_class.new.rows.first
+
+      expect(row.buildable_missing).to contain_exactly("win_x86", "win_x64", "linux_x64", "linux_arm64")
+      expect(row.manual_missing).to contain_exactly("mac_x64", "mac_arm64")
+      expect(row.state_of("linux_arm64")).to eq(:missing)
+      expect(row.state_of("mac_x64")).to eq(:manual)
+      expect(row.state_of("html")).to eq(:present)
+    end
+
+    it "treats every missing kind as buildable when the CI cannot say" do
+      ci = instance_double(WarpEngine::CI::Woodpecker::Adapter)
+      allow(ci).to receive(:built_kinds).and_return(nil)
+      allow(WarpEngine).to receive(:ci).and_return(ci)
+
+      row = described_class.new.rows.first
+
+      expect(row.buildable_missing).to eq(row.missing)
+      expect(row.manual_missing).to be_empty
+    end
+  end
+
+  describe "#totals" do
+    it "counts releases, assets and the softwares that are short of one" do
+      tic80 = create(:software, name: "impostor", platform: "tic80")
+      release_with(software: tic80, version: "1.0", kinds: %w[cartridge source html docs win_x64 linux_x64 mac_x64])
+      c64 = create(:software, name: "pong", platform: "c64")
+      release_with(software: c64, version: "0.1", kinds: [])
+
+      totals = described_class.new.totals
+
+      expect(totals[:softwares]).to eq(2)
+      expect(totals[:releases]).to eq(2)
+      expect(totals[:expected]).to eq(8)
+      expect(totals[:present]).to eq(7)
+      expect(totals[:missing]).to eq(1)
+      expect(totals[:incomplete_softwares]).to eq(1)
+    end
+  end
+end