diff --git a/graph.fabro b/graph.fabro
new file mode 100644
index 000000000..4bc3ad5ee
--- /dev/null
+++ b/graph.fabro
@@ -0,0 +1,38 @@
+digraph ImplementAndSimplify {
+    graph [
+        goal="Implement and simplify",
+        model_stylesheet="
+            * { backend: api; model: claude-opus-4-6;}
+        "
+    ]
+    rankdir=LR
+
+    start [shape=Mdiamond, label="Start"]
+    exit  [shape=Msquare, label="Exit"]
+
+    toolchain         [label="Toolchain", shape=parallelogram, script="command -v cargo >/dev/null || { curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y && sudo ln -sf $HOME/.cargo/bin/* /usr/local/bin/; }; cargo --version 2>&1", max_retries=0]
+    preflight_compile [label="Preflight Compile", shape=parallelogram, script="cargo check -q --workspace 2>&1", max_retries=0]
+    preflight_lint    [label="Preflight Lint", shape=parallelogram, script="cargo clippy -q --workspace -- -D warnings 2>&1", max_retries=0]
+    fix_lints         [label="Fix Lints", prompt="The preflight lint step failed. Read the build output from context and fix all clippy lint warnings.", max_visits=3]
+    implement         [label="Implement", prompt="Read the plan file referenced in the goal and implement every step. Make all the code changes described in the plan. Use red/green TDD."]
+    simplify_opus     [label="Simplify (Opus)", prompt="@prompts/simplify.md"]
+    simplify_gemini   [label="Simplify (Gemini)", prompt="@prompts/simplify.md", model="gemini-3.1-pro-preview-customtools"]
+    simplify_gpt      [label="Simplify (GPT-54)", prompt="@prompts/simplify.md", model="gpt-54"]
+    verify            [label="Verify", shape=parallelogram, script="cargo clippy -q --workspace -- -D warnings 2>&1 && cargo nextest run --cargo-quiet --workspace --status-level fail 2>&1", goal_gate=true, retry_target="fixup"]
+    fixup             [label="Fixup", prompt="The verify step failed. Read the build output from context and fix all clippy lint warnings and test failures.", max_visits=3]
+    fmt               [label="Format", shape=parallelogram, script="cargo fmt --all 2>&1", goal_gate=true, max_retries=0]
+
+    start -> toolchain
+    toolchain -> preflight_compile [condition="outcome=success"]
+    toolchain -> exit
+    preflight_compile -> preflight_lint [condition="outcome=success"]
+    preflight_compile -> exit
+    preflight_lint -> implement [condition="outcome=success"]
+    preflight_lint -> fix_lints
+    fix_lints -> preflight_lint
+    implement -> simplify_opus -> simplify_gemini -> simplify_gpt -> verify
+    verify -> fmt   [condition="outcome=success"]
+    verify -> fixup
+    fixup -> verify
+    fmt -> exit
+}
diff --git a/manifest.json b/manifest.json
new file mode 100644
index 000000000..225f250f8
--- /dev/null
+++ b/manifest.json
@@ -0,0 +1,13 @@
+{
+  "run_id": "01KKVZKATBS8W0GDJK3Q75CY19",
+  "workflow_name": "ImplementAndSimplify",
+  "goal": "Add a comment to the top of evals/swe-bench/status.py that says 'hello world'",
+  "start_time": "2026-03-16T18:47:42.948379Z",
+  "node_count": 13,
+  "edge_count": 16,
+  "run_branch": "fabro/run/01KKVZKATBS8W0GDJK3Q75CY19",
+  "base_sha": "b18521058a201425649b1bd91c6aa845db1e7003",
+  "base_branch": "main",
+  "workflow_slug": "implement",
+  "host_repo_path": "/Users/bhelmkamp/p/fabro-sh/fabro"
+}
\ No newline at end of file
diff --git a/sandbox.json b/sandbox.json
new file mode 100644
index 000000000..d50692157
--- /dev/null
+++ b/sandbox.json
@@ -0,0 +1,4 @@
+{
+  "provider": "local",
+  "working_directory": "/Users/bhelmkamp/.fabro/runs/20260316-01KKVZKATBS8W0GDJK3Q75CY19/worktree"
+}
\ No newline at end of file