diff --git a/submissions/hello-world-no-instr/metadata.yaml b/submissions/hello-world-no-instr/metadata.yaml
new file mode 100644
index 0000000..8da7433
--- /dev/null
+++ b/submissions/hello-world-no-instr/metadata.yaml
@@ -0,0 +1,13 @@
+name: hello-world-no-instr
+description: "Create a file with specific content -- tests pipeline AI generation (no instruction.md)"
+persona: general
+version: "0.1.0"
+tags:
+  - smoke-test
+  - ai-generated
+generation_mode: ai
+cpus: 1
+memory_mb: 512
+storage_mb: 1024
+experiment:
+  n_trials: 1
diff --git a/submissions/hello-world-no-instr/skills/SKILL.md b/submissions/hello-world-no-instr/skills/SKILL.md
new file mode 100644
index 0000000..4836731
--- /dev/null
+++ b/submissions/hello-world-no-instr/skills/SKILL.md
@@ -0,0 +1,13 @@
+# Hello World Skill
+
+A trivial file-creation skill used as a smoke test for the ABEvalFlow pipeline.
+
+## What the agent must do
+
+Given an instruction to create a file with specific content, the agent should
+produce the correct file at the correct path with the exact expected content.
+
+## Evaluation criteria
+
+- File exists at the specified path
+- File content matches the expected string exactly (including punctuation)
diff --git a/submissions/hello-world-no-instr/solution/solve.sh b/submissions/hello-world-no-instr/solution/solve.sh
new file mode 100755
index 0000000..590509f
--- /dev/null
+++ b/submissions/hello-world-no-instr/solution/solve.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+echo "Hello, world!" > hello.txt
+echo "Done!"