diff --git a/checkpoint.json b/checkpoint.json
index f886bc8b0..56098433f 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,6 +1,6 @@
 {
-  "timestamp": "2026-03-19T15:21:59.067505Z",
-  "current_node": "verify",
+  "timestamp": "2026-03-19T15:22:02.953634Z",
+  "current_node": "fmt",
   "completed_nodes": [
     "start",
     "toolchain",
@@ -10,7 +10,8 @@
     "simplify_opus",
     "simplify_gemini",
     "simplify_gpt",
-    "verify"
+    "verify",
+    "fmt"
   ],
   "node_retries": {
     "toolchain": 1,
@@ -20,17 +21,19 @@
     "simplify_gemini": 1,
     "simplify_gpt": 1,
     "preflight_lint": 1,
+    "fmt": 1,
     "verify": 1,
     "start": 1
   },
   "context_values": {
     "response.simplify_gpt": "## Summary\n\nAll three review agents completed their analysis. Here's what was found and addressed:\n\n### Fixed\n- **Nesting depth in init.rs**: Reduced from 4 levels of nested `if`/`if let` to 2 levels by extracting `cross_owner` and `is_private` boolean variables. The short-circuit `&&` ensures `is_app_public` is only called when `cross_owner` is true, preserving the original behavior.\n\n### Reviewed and confirmed clean (no action needed)\n- **Code reuse**: The repeated header patterns (`Accept`, `User-Agent`) and auth error messages are pre-existing across 10+ call sites in `fabro-github`. The new code follows the established convention. Extracting these into shared helpers would be a larger unrelated refactor.\n- **Efficiency**: The sequential `get_authenticated_app` → `is_app_public` calls are justified by a data dependency (slug). The entire path only runs in the failure case (`Ok(false)`) of a one-time interactive CLI command — no hot-path concern.\n- **No TOCTOU**: The new checks are purely advisory/diagnostic.\n- **No memory issues**: `AppInfo` and `AppOwner` are small fixed-size structs.\n- **No missed concurrency**: `check_app_installed` could theoretically run concurrently with `get_authenticated_app`, but that would waste an API call on the happy path for negligible gain.",
-    "current.preamble": "Goal: # Detect GitHub App visibility mismatch during `repo init`\n\n## Context\n\nWhen `fabro repo init` detects the GitHub App is not installed for a repo, it shows a generic \"install at\" URL. But if the repo owner differs from the app owner, the app must be **public** to be installable. Users currently get no guidance about this, leading to confusion when the install link doesn't work.\n\n## Changes\n\n### 1. Add `get_authenticated_app()` to fabro-github\n\n**File:** `lib/crates/fabro-github/src/lib.rs`\n\nAdd two public structs near the existing response types (around line 40):\n\n```rust\npub struct AppOwner {\n    pub login: String,\n}\n\npub struct AppInfo {\n    pub slug: String,\n    pub owner: AppOwner,\n}\n```\n\nAdd function after `check_app_installed` (after line 525):\n\n- `pub async fn get_authenticated_app(client, jwt, base_url) -> Result<AppInfo, String>`\n- Calls `GET {base_url}/app` with Bearer JWT auth\n- Returns `AppInfo` on 200, errors on 401/other\n\n### 2. Add `is_app_public()` to fabro-github\n\n**File:** `lib/crates/fabro-github/src/lib.rs`\n\nAdd function after `get_authenticated_app`:\n\n- `pub async fn is_app_public(client, slug, base_url) -> Result<bool, String>`\n- Calls `GET {base_url}/apps/{slug}` **without** auth (public apps are visible to unauthenticated requests)\n- Returns `Ok(true)` on 200, `Ok(false)` on 404, error on other status\n\n### 3. Update `check_github_app_installation` in init.rs\n\n**File:** `lib/crates/fabro-cli/src/init.rs`\n\nIn the `Ok(false)` branch (line 250), before showing the install URL:\n\n1. Call `get_authenticated_app()` to get the app's owner\n2. Compare `app_info.owner.login` with the repo `owner` (case-insensitive)\n3. If they differ, call `is_app_public()` to check visibility\n4. If the app is private and owners differ, show a targeted warning:\n\n```\n  ! GitHub App \"{slug}\" is private but this repo belongs to a different owner ({repo_owner}).\n    The app must be made public before it can be installed outside {app_owner}.\n    Update visibility at: https://github.com/settings/apps/{slug}\n```\n\nAll new checks are best-effort — failures are silently ignored (the existing generic warning still shows).\n\n### 4. Tests\n\n**File:** `lib/crates/fabro-github/src/lib.rs` (test module)\n\nAdd tests using existing `mockito` patterns:\n\n- `get_authenticated_app_success` — 200 returns parsed `AppInfo`\n- `get_authenticated_app_auth_failure` — 401 returns error\n- `is_app_public_returns_true_on_200` — public app\n- `is_app_public_returns_false_on_404` — private app\n- `is_app_public_no_auth_header` — verify no Authorization header is sent\n\n## Verification\n\n1. `cargo test -p fabro-github` — new unit tests pass\n2. `cargo build --workspace` — compiles cleanly\n3. `cargo clippy --workspace -- -D warnings` — no warnings\n4. Manual: run `fabro repo init` in a repo owned by a different org than the app to verify the warning appears\n\n\n## Completed stages\n- **toolchain**: success\n  - 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`\n  - Stdout:\n    ```\n    cargo 1.94.0 (85eff7c80 2026-01-15)\n    ```\n  - Stderr: (empty)\n- **preflight_compile**: success\n  - Script: `cargo check -q --workspace 2>&1`\n  - Stdout: (empty)\n  - Stderr: (empty)\n- **preflight_lint**: success\n  - Script: `cargo clippy -q --workspace -- -D warnings 2>&1`\n  - Stdout: (empty)\n  - Stderr: (empty)\n- **implement**: success\n  - Model: claude-opus-4-6, 38.3k tokens in / 4.9k out\n  - Files: /home/daytona/workspace/lib/crates/fabro-cli/src/init.rs, /home/daytona/workspace/lib/crates/fabro-github/src/lib.rs\n- **simplify_opus**: success\n  - Model: claude-opus-4-6, 28.9k tokens in / 13.5k out\n  - Files: /home/daytona/workspace/lib/crates/fabro-cli/src/init.rs\n- **simplify_gemini**: success\n  - Model: claude-opus-4-6, 20.6k tokens in / 8.1k out\n- **simplify_gpt**: success\n  - Model: claude-opus-4-6, 22.9k tokens in / 10.0k out\n  - Files: /home/daytona/workspace/lib/crates/fabro-cli/src/init.rs\n",
+    "current.preamble": "Goal: # Detect GitHub App visibility mismatch during `repo init`\n\n## Context\n\nWhen `fabro repo init` detects the GitHub App is not installed for a repo, it shows a generic \"install at\" URL. But if the repo owner differs from the app owner, the app must be **public** to be installable. Users currently get no guidance about this, leading to confusion when the install link doesn't work.\n\n## Changes\n\n### 1. Add `get_authenticated_app()` to fabro-github\n\n**File:** `lib/crates/fabro-github/src/lib.rs`\n\nAdd two public structs near the existing response types (around line 40):\n\n```rust\npub struct AppOwner {\n    pub login: String,\n}\n\npub struct AppInfo {\n    pub slug: String,\n    pub owner: AppOwner,\n}\n```\n\nAdd function after `check_app_installed` (after line 525):\n\n- `pub async fn get_authenticated_app(client, jwt, base_url) -> Result<AppInfo, String>`\n- Calls `GET {base_url}/app` with Bearer JWT auth\n- Returns `AppInfo` on 200, errors on 401/other\n\n### 2. Add `is_app_public()` to fabro-github\n\n**File:** `lib/crates/fabro-github/src/lib.rs`\n\nAdd function after `get_authenticated_app`:\n\n- `pub async fn is_app_public(client, slug, base_url) -> Result<bool, String>`\n- Calls `GET {base_url}/apps/{slug}` **without** auth (public apps are visible to unauthenticated requests)\n- Returns `Ok(true)` on 200, `Ok(false)` on 404, error on other status\n\n### 3. Update `check_github_app_installation` in init.rs\n\n**File:** `lib/crates/fabro-cli/src/init.rs`\n\nIn the `Ok(false)` branch (line 250), before showing the install URL:\n\n1. Call `get_authenticated_app()` to get the app's owner\n2. Compare `app_info.owner.login` with the repo `owner` (case-insensitive)\n3. If they differ, call `is_app_public()` to check visibility\n4. If the app is private and owners differ, show a targeted warning:\n\n```\n  ! GitHub App \"{slug}\" is private but this repo belongs to a different owner ({repo_owner}).\n    The app must be made public before it can be installed outside {app_owner}.\n    Update visibility at: https://github.com/settings/apps/{slug}\n```\n\nAll new checks are best-effort — failures are silently ignored (the existing generic warning still shows).\n\n### 4. Tests\n\n**File:** `lib/crates/fabro-github/src/lib.rs` (test module)\n\nAdd tests using existing `mockito` patterns:\n\n- `get_authenticated_app_success` — 200 returns parsed `AppInfo`\n- `get_authenticated_app_auth_failure` — 401 returns error\n- `is_app_public_returns_true_on_200` — public app\n- `is_app_public_returns_false_on_404` — private app\n- `is_app_public_no_auth_header` — verify no Authorization header is sent\n\n## Verification\n\n1. `cargo test -p fabro-github` — new unit tests pass\n2. `cargo build --workspace` — compiles cleanly\n3. `cargo clippy --workspace -- -D warnings` — no warnings\n4. Manual: run `fabro repo init` in a repo owned by a different org than the app to verify the warning appears\n\n\n## Completed stages\n- **toolchain**: success\n  - 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`\n  - Stdout:\n    ```\n    cargo 1.94.0 (85eff7c80 2026-01-15)\n    ```\n  - Stderr: (empty)\n- **preflight_compile**: success\n  - Script: `cargo check -q --workspace 2>&1`\n  - Stdout: (empty)\n  - Stderr: (empty)\n- **preflight_lint**: success\n  - Script: `cargo clippy -q --workspace -- -D warnings 2>&1`\n  - Stdout: (empty)\n  - Stderr: (empty)\n- **implement**: success\n  - Model: claude-opus-4-6, 38.3k tokens in / 4.9k out\n  - Files: /home/daytona/workspace/lib/crates/fabro-cli/src/init.rs, /home/daytona/workspace/lib/crates/fabro-github/src/lib.rs\n- **simplify_opus**: success\n  - Model: claude-opus-4-6, 28.9k tokens in / 13.5k out\n  - Files: /home/daytona/workspace/lib/crates/fabro-cli/src/init.rs\n- **simplify_gemini**: success\n  - Model: claude-opus-4-6, 20.6k tokens in / 8.1k out\n- **simplify_gpt**: success\n  - Model: claude-opus-4-6, 22.9k tokens in / 10.0k out\n  - Files: /home/daytona/workspace/lib/crates/fabro-cli/src/init.rs\n- **verify**: success\n  - Script: `cargo clippy -q --workspace -- -D warnings 2>&1 && cargo nextest run --cargo-quiet --workspace --status-level fail 2>&1`\n  - Stdout:\n    ```\n    ────────────\n     Nextest run ID 27472097-4669-4dae-bf34-20c14af29641 with nextest profile: default\n        Starting 3217 tests across 45 binaries (179 tests skipped)\n    ────────────\n         Summary [  16.128s] 3217 tests run: 3217 passed, 179 skipped\n    ```\n  - Stderr: (empty)\n",
     "response.implement": "All 55 tests pass. Here's a summary of all changes made:\n\n### Changes Summary\n\n**1. `lib/crates/fabro-github/src/lib.rs`** — Added two structs and two functions:\n\n- **`AppOwner`** struct — holds the `login` field for the app's owner\n- **`AppInfo`** struct — holds `slug` and `owner` (an `AppOwner`), both derived from `Deserialize`\n- **`get_authenticated_app(client, jwt, base_url)`** — calls `GET {base_url}/app` with Bearer JWT auth, returns `AppInfo` on 200, error on 401/other\n- **`is_app_public(client, slug, base_url)`** — calls `GET {base_url}/apps/{slug}` **without** auth, returns `Ok(true)` on 200, `Ok(false)` on 404, error on other\n\n**5 new tests** added to the test module:\n- `get_authenticated_app_success` — verifies 200 response is parsed into `AppInfo`\n- `get_authenticated_app_auth_failure` — verifies 401 returns authentication error\n- `is_app_public_returns_true_on_200` — public app returns true\n- `is_app_public_returns_false_on_404` — private app returns false\n- `is_app_public_no_auth_header` — verifies no `Authorization` header is sent (using `Matcher::Missing`)\n\n**2. `lib/crates/fabro-cli/src/init.rs`** — Updated `check_github_app_installation`:\n\nIn the `Ok(false)` branch (app not installed), before showing the install URL, added best-effort checks:\n1. Calls `get_authenticated_app()` to get the app's owner\n2. Compares `app_info.owner.login` with the repo `owner` (case-insensitive via `eq_ignore_ascii_case`)\n3. If they differ, calls `is_app_public()` to check visibility\n4. If the app is private and owners differ, shows a targeted warning about making the app public\n\nAll checks are best-effort — failures at any step are silently ignored and the existing generic warning still shows.",
     "internal.retry_count.toolchain": 1,
     "internal.retry_count.simplify_opus": 1,
     "failure_signature": "",
     "internal.retry_count.simplify_gemini": 1,
+    "thread.verify.current_node": "fmt",
     "thread.simplify_opus.current_node": "simplify_gemini",
     "graph.model_stylesheet": "\n            * { backend: api; model: claude-opus-4-6;}\n        ",
     "failure_class": "",
@@ -38,7 +41,7 @@
     "internal.fidelity": "compact",
     "thread.start.current_node": "toolchain",
     "internal.retry_count.preflight_compile": 1,
-    "command.output": "────────────\n Nextest run ID 27472097-4669-4dae-bf34-20c14af29641 with nextest profile: default\n    Starting 3217 tests across 45 binaries (179 tests skipped)\n────────────\n     Summary [  16.128s] 3217 tests run: 3217 passed, 179 skipped\n",
+    "command.output": "",
     "internal.node_visit_count": 1,
     "thread.simplify_gpt.current_node": "verify",
     "thread.implement.current_node": "simplify_opus",
@@ -46,8 +49,8 @@
     "internal.retry_count.implement": 1,
     "internal.retry_count.preflight_lint": 1,
     "response.simplify_gemini": "All three review agents completed. Here's the aggregated summary:\n\n## Review Results\n\n### Agent 1 (Code Reuse): ✅ Clean\n- **One minor finding**: `AppOwner` is structurally identical to `PullRequestUser` (both have `pub login: String`). However, they represent different semantic concepts (GitHub App owner vs. PR author), and the struct is trivial. **Skipping** — keeping distinct types for distinct concepts is reasonable.\n- No other duplication found. The new functions follow established codebase patterns (manual header attachment, status-code matching). The `GITHUB_API_BASE_URL` constant replacement is a pure improvement.\n\n### Agent 2 (Code Quality): ✅ Clean\n- The new functions (`get_authenticated_app`, `is_app_public`) follow the exact same pattern as existing functions like `check_app_installed` and `branch_exists`\n- The nested `if let Ok(...)` / `if !...` pattern in init.rs is idiomatic for best-effort checks\n- No parameter sprawl, copy-paste issues, leaky abstractions, or stringly-typed code\n\n### Agent 3 (Efficiency): ✅ Clean\n- The two sequential API calls (`get_authenticated_app` → `is_app_public`) can't be parallelized because the second depends on the slug from the first — this is correct\n- These calls only execute in the `Ok(false)` branch (app not installed), which is a one-time interactive CLI init check, not a hot path\n- No unnecessary work, unbounded structures, or TOCTOU issues\n\n**Conclusion: The code is already clean.** No changes needed. All tests pass and clippy reports no warnings.",
-    "internal.thread_id": "simplify_gpt",
-    "current_node": "verify",
+    "internal.thread_id": "verify",
+    "current_node": "fmt",
     "internal.retry_count.start": 1,
     "graph.rankdir": "LR",
     "internal.run_id": "01KM39Z9DVCBB36GZMYAA6P0FJ",
@@ -59,6 +62,7 @@
     "graph.goal": "# Detect GitHub App visibility mismatch during `repo init`\n\n## Context\n\nWhen `fabro repo init` detects the GitHub App is not installed for a repo, it shows a generic \"install at\" URL. But if the repo owner differs from the app owner, the app must be **public** to be installable. Users currently get no guidance about this, leading to confusion when the install link doesn't work.\n\n## Changes\n\n### 1. Add `get_authenticated_app()` to fabro-github\n\n**File:** `lib/crates/fabro-github/src/lib.rs`\n\nAdd two public structs near the existing response types (around line 40):\n\n```rust\npub struct AppOwner {\n    pub login: String,\n}\n\npub struct AppInfo {\n    pub slug: String,\n    pub owner: AppOwner,\n}\n```\n\nAdd function after `check_app_installed` (after line 525):\n\n- `pub async fn get_authenticated_app(client, jwt, base_url) -> Result<AppInfo, String>`\n- Calls `GET {base_url}/app` with Bearer JWT auth\n- Returns `AppInfo` on 200, errors on 401/other\n\n### 2. Add `is_app_public()` to fabro-github\n\n**File:** `lib/crates/fabro-github/src/lib.rs`\n\nAdd function after `get_authenticated_app`:\n\n- `pub async fn is_app_public(client, slug, base_url) -> Result<bool, String>`\n- Calls `GET {base_url}/apps/{slug}` **without** auth (public apps are visible to unauthenticated requests)\n- Returns `Ok(true)` on 200, `Ok(false)` on 404, error on other status\n\n### 3. Update `check_github_app_installation` in init.rs\n\n**File:** `lib/crates/fabro-cli/src/init.rs`\n\nIn the `Ok(false)` branch (line 250), before showing the install URL:\n\n1. Call `get_authenticated_app()` to get the app's owner\n2. Compare `app_info.owner.login` with the repo `owner` (case-insensitive)\n3. If they differ, call `is_app_public()` to check visibility\n4. If the app is private and owners differ, show a targeted warning:\n\n```\n  ! GitHub App \"{slug}\" is private but this repo belongs to a different owner ({repo_owner}).\n    The app must be made public before it can be installed outside {app_owner}.\n    Update visibility at: https://github.com/settings/apps/{slug}\n```\n\nAll new checks are best-effort — failures are silently ignored (the existing generic warning still shows).\n\n### 4. Tests\n\n**File:** `lib/crates/fabro-github/src/lib.rs` (test module)\n\nAdd tests using existing `mockito` patterns:\n\n- `get_authenticated_app_success` — 200 returns parsed `AppInfo`\n- `get_authenticated_app_auth_failure` — 401 returns error\n- `is_app_public_returns_true_on_200` — public app\n- `is_app_public_returns_false_on_404` — private app\n- `is_app_public_no_auth_header` — verify no Authorization header is sent\n\n## Verification\n\n1. `cargo test -p fabro-github` — new unit tests pass\n2. `cargo build --workspace` — compiles cleanly\n3. `cargo clippy --workspace -- -D warnings` — no warnings\n4. Manual: run `fabro repo init` in a repo owned by a different org than the app to verify the warning appears\n",
     "command.stderr": "",
     "thread.simplify_gemini.current_node": "simplify_gpt",
+    "internal.retry_count.fmt": 1,
     "thread.toolchain.current_node": "preflight_compile",
     "internal.retry_count.verify": 1
   },
@@ -189,10 +193,20 @@
       },
       "notes": "Script completed: cargo clippy -q --workspace -- -D warnings 2>&1 && cargo nextest run --cargo-quiet --workspace --status-level fail 2>&1",
       "duration_ms": 85852
+    },
+    "fmt": {
+      "status": "success",
+      "context_updates": {
+        "command.stderr": "",
+        "command.output": ""
+      },
+      "notes": "Script completed: cargo fmt --all 2>&1",
+      "duration_ms": 1094
     }
   },
-  "next_node_id": "fmt",
+  "next_node_id": "exit",
   "node_visits": {
+    "fmt": 1,
     "simplify_gpt": 1,
     "simplify_opus": 1,
     "start": 1,
diff --git a/nodes/fmt/script_invocation.json b/nodes/fmt/script_invocation.json
new file mode 100644
index 000000000..237863974
--- /dev/null
+++ b/nodes/fmt/script_invocation.json
@@ -0,0 +1,5 @@
+{
+  "command": "cargo fmt --all 2>&1",
+  "language": "shell",
+  "timeout_ms": null
+}
\ No newline at end of file
diff --git a/nodes/fmt/script_timing.json b/nodes/fmt/script_timing.json
new file mode 100644
index 000000000..5e07c9941
--- /dev/null
+++ b/nodes/fmt/script_timing.json
@@ -0,0 +1,5 @@
+{
+  "duration_ms": 1093,
+  "exit_code": 0,
+  "timed_out": false
+}
\ No newline at end of file
diff --git a/nodes/fmt/status.json b/nodes/fmt/status.json
new file mode 100644
index 000000000..ae2279bf2
--- /dev/null
+++ b/nodes/fmt/status.json
@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Script completed: cargo fmt --all 2>&1",
+  "failure_reason": null,
+  "timestamp": "2026-03-19T15:22:02.953120+00:00"
+}
\ No newline at end of file