diff --git a/ingest/build-configs/nextstrain-automation/config.yaml b/ingest/build-configs/nextstrain-automation/config.yaml
index c62b067..4490f64 100644
--- a/ingest/build-configs/nextstrain-automation/config.yaml
+++ b/ingest/build-configs/nextstrain-automation/config.yaml
@@ -18,8 +18,3 @@ files_to_upload:
   metadata.tsv.zst: results/metadata.tsv
   sequences.fasta.zst: results/sequences.fasta
 
-# Toggle for Slack notifications
-send_slack_notifications: True
-
-# Toggle for triggering builds
-trigger_rebuild: True
diff --git a/ingest/rules/slack_notifications.smk b/ingest/rules/slack_notifications.smk
deleted file mode 100644
index 2b7ec61..0000000
--- a/ingest/rules/slack_notifications.smk
+++ /dev/null
@@ -1,55 +0,0 @@
-"""
-This part of the workflow handles various Slack notifications.
-Designed to be used internally by the Nextstrain team with hard-coded paths
-to files on AWS S3.
-
-All rules here require two environment variables:
-    * SLACK_TOKEN
-    * SLACK_CHANNELS
-"""
-import os
-import sys
-
-slack_envvars_defined = "SLACK_CHANNELS" in os.environ and "SLACK_TOKEN" in os.environ
-if not slack_envvars_defined:
-    print(
-        "ERROR: Slack notifications require two environment variables: 'SLACK_CHANNELS' and 'SLACK_TOKEN'.",
-        file=sys.stderr,
-    )
-    sys.exit(1)
-
-S3_SRC = "s3://nextstrain-data/files/workflows/zika"
-
-
-rule notify_on_genbank_record_change:
-    input:
-        genbank_ndjson="data/genbank.ndjson",
-    output:
-        touch("data/notify/genbank-record-change.done"),
-    params:
-        s3_src=S3_SRC,
-    shell:
-        """
-        ./vendored/notify-on-record-change {input.genbank_ndjson} {params.s3_src:q}/genbank.ndjson.xz Genbank
-        """
-
-
-rule notify_on_metadata_diff:
-    input:
-        metadata="results/metadata.tsv",
-    output:
-        touch("data/notify/metadata-diff.done"),
-    params:
-        s3_src=S3_SRC,
-    shell:
-        """
-        ./vendored/notify-on-diff {input.metadata} {params.s3_src:q}/metadata.tsv.gz
-        """
-
-
-onstart:
-    shell("./vendored/notify-on-job-start Ingest nextstrain/zika")
-
-
-onerror:
-    shell("./vendored/notify-on-job-fail Ingest nextstrain/zika")
diff --git a/ingest/rules/trigger_rebuild.smk b/ingest/rules/trigger_rebuild.smk
deleted file mode 100644
index 0cf6731..0000000
--- a/ingest/rules/trigger_rebuild.smk
+++ /dev/null
@@ -1,22 +0,0 @@
-"""
-This part of the workflow handles triggering new zika builds after the
-latest metadata TSV and sequence FASTA files have been uploaded to S3.
-
-Designed to be used internally by the Nextstrain team with hard-coded paths
-to expected upload flag files.
-"""
-
-
-rule trigger_build:
-    """
-    Triggering zika builds via repository action type `rebuild`.
-    """
-    input:
-        metadata_upload="data/upload/s3/metadata.tsv.gz.done",
-        fasta_upload="data/upload/s3/sequences.fasta.xz.done",
-    output:
-        touch("data/trigger/rebuild.done"),
-    shell:
-        """
-        ./vendored/trigger-on-new-data nextstrain/zika rebuild {input.metadata_upload} {input.fasta_upload}
-        """