diff --git a/src/deploy-w3c-echidna.ts b/src/deploy-w3c-echidna.ts
index d45ec56..3178ede 100644
--- a/src/deploy-w3c-echidna.ts
+++ b/src/deploy-w3c-echidna.ts
@@ -94,7 +94,8 @@ export default async function main(inputs: Input, buildOutput: BuildResult) {
 
 async function publish(input: Input, buildOutput: BuildResult) {
 	const { dest: outputDir, file } = buildOutput;
-	const { wgDecisionURL: decision, token, cc } = input;
+	const { wgDecisionURL: decision, token, cc, repository } = input;
+	const annotation = `triggered by auto-publish spec-prod action on ${repository}`;
 	const tarFileName = "/tmp/echidna.tar";
 	await sh(`mv ${file} Overview.html`, { cwd: outputDir });
 	await sh(`tar cvf ${tarFileName} *`, {
@@ -107,6 +108,7 @@ async function publish(input: Input, buildOutput: BuildResult) {
 	// command += ` -F "dry-run=true"`;
 	command += ` -F "tar=@${tarFileName}"`;
 	command += ` -F "token=${token}"`;
+	command += ` -F "annotation=${annotation}"`;
 	command += ` -F "decision=${decision}"`;
 	if (cc) command += ` -F "cc=${cc}"`;
 
diff --git a/src/prepare-deploy.ts b/src/prepare-deploy.ts
index 2183d58..c01f1b4 100644
--- a/src/prepare-deploy.ts
+++ b/src/prepare-deploy.ts
@@ -47,7 +47,7 @@ export async function w3cEchidnaDeployment(
 	inputs: Inputs,
 	githubContext: GitHubContext,
 ) {
-	const { event_name: event } = githubContext;
+	const { event_name: event, repository } = githubContext;
 	if (!shouldTryDeploy(event)) {
 		return false;
 	}
@@ -63,7 +63,7 @@ export async function w3cEchidnaDeployment(
 
 	const cc = inputs.W3C_NOTIFICATIONS_CC;
 
-	return { wgDecisionURL, cc, token: token };
+	return { wgDecisionURL, cc, token: token, repository };
 }
 
 function shouldTryDeploy(githubEvent: GitHubContext["event_name"]) {