diff --git a/lib/data_pull.rb b/lib/data_pull.rb
index 89b99d65110..3ee39913917 100644
--- a/lib/data_pull.rb
+++ b/lib/data_pull.rb
@@ -11,7 +11,8 @@ def initialize(argv:, stdout:, stderr:)
 
   Result = Struct.new(
     :table, # tabular output, rendered as an ASCII table or as CSV
-    :log_message, # summary message used for audit logging, DO NOT PUT PII HERE
+    :subtask, # name of subtask, used for audit logging
+    :uuids, # Array of UUIDs entered or returned, used for audit logging
     keyword_init: true,
   )
 
@@ -38,13 +39,17 @@ def run
     subtask_class = subtask(argv.shift)
 
     if config.show_help? || !subtask_class
+      stderr.puts '*Task*: `help`'
+      stderr.puts '*UUIDs*: N/A'
+
       stdout.puts option_parser
       return
     end
 
     result = subtask_class.new.run(args: argv, include_missing: config.include_missing?)
 
-    stderr.puts result.log_message
+    stderr.puts "*Task*: `#{result.subtask}`"
+    stderr.puts "*UUIDs*: #{result.uuids.map { |uuid| "`#{uuid}`" }.join(', ')}"
 
     render_output(result.table)
   end
@@ -156,8 +161,9 @@ def run(args:, include_missing:)
       end
 
       Result.new(
-        log_message: "uuid-lookup, uuids: #{uuids.join(', ')}",
+        subtask: 'uuid-lookup',
         table:,
+        uuids:,
       )
     end
   end
@@ -181,7 +187,8 @@ def run(args:, include_missing:)
       end
 
       Result.new(
-        log_message: "uuid-convert, uuids: #{identities.map { |u| u.user.uuid }.join(', ')}",
+        subtask: 'uuid-convert',
+        uuids: identities.map { |u| u.user.uuid },
         table:,
       )
     end
@@ -209,7 +216,8 @@ def run(args:, include_missing:)
       end
 
       Result.new(
-        log_message: "email-lookup, uuids: #{users.map(&:uuid).join(', ')}",
+        subtask: 'email-lookup',
+        uuids: users.map(&:uuid),
         table:,
       )
     end
diff --git a/spec/lib/data_pull_spec.rb b/spec/lib/data_pull_spec.rb
index 04a1621690f..4abec8ef71a 100644
--- a/spec/lib/data_pull_spec.rb
+++ b/spec/lib/data_pull_spec.rb
@@ -20,6 +20,13 @@
 
         expect(stdout.string).to include('Options:')
       end
+
+      it 'prints help to stderr', aggregate_failures: true do
+        data_pull.run
+
+        expect(stderr.string).to include('*Task*: `help`')
+        expect(stderr.string).to include('*UUIDs*: N/A')
+      end
     end
 
     describe '--csv' do
@@ -50,6 +57,13 @@
       end
     end
 
+    it 'logs UUIDs and the command name to STDERR formatted for Slack', aggregate_failures: true do
+      data_pull.run
+
+      expect(stderr.string).to include('`uuid-lookup`')
+      expect(stderr.string).to include("`#{user.uuid}`")
+    end
+
     describe '--json' do
       before { argv << '--json' }
       it 'formats output as JSON' do
@@ -103,7 +117,7 @@
 
       subject(:result) { subtask.run(args:, include_missing:) }
 
-      it 'looks up the UUIDs for the given email addresses' do
+      it 'looks up the UUIDs for the given email addresses', aggregate_failures: true do
         expect(result.table).to eq(
           [
             ['email', 'uuid'],
@@ -111,6 +125,9 @@
             ['missing@example.com', '[NOT FOUND]'],
           ],
         )
+
+        expect(result.subtask).to eq('uuid-lookup')
+        expect(result.uuids).to match_array(users.map(&:uuid))
       end
     end
   end
@@ -125,7 +142,7 @@
       let(:include_missing) { true }
       subject(:result) { subtask.run(args:, include_missing:) }
 
-      it 'converts the agency agency identities to internal UUIDs' do
+      it 'converts the agency agency identities to internal UUIDs', aggregate_failures: true do
         expect(result.table).to eq(
           [
             ['partner_uuid', 'source', 'internal_uuid'],
@@ -133,6 +150,9 @@
             ['does-not-exist', '[NOT FOUND]', '[NOT FOUND]'],
           ],
         )
+
+        expect(result.subtask).to eq('uuid-convert')
+        expect(result.uuids).to match_array(agency_identities.map(&:user).map(&:uuid))
       end
     end
   end
@@ -147,7 +167,7 @@
       let(:include_missing) { true }
       subject(:result) { subtask.run(args:, include_missing:) }
 
-      it 'loads email addresses for the user' do
+      it 'loads email addresses for the user', aggregate_failures: true do
         expect(result.table).to match(
           [
             ['uuid', 'email', 'confirmed_at'],
@@ -157,6 +177,9 @@
             ['does-not-exist', '[NOT FOUND]', nil],
           ],
         )
+
+        expect(result.subtask).to eq('email-lookup')
+        expect(result.uuids).to eq([user.uuid])
       end
     end
   end