diff --git a/checkpoint.json b/checkpoint.json
index 2c6824e60..da84877ab 100644
--- a/checkpoint.json
+++ b/checkpoint.json
@@ -1,6 +1,6 @@
 {
-  "timestamp": "2026-03-20T00:27:27.165905Z",
-  "current_node": "verify",
+  "timestamp": "2026-03-20T00:27:30.750186Z",
+  "current_node": "fmt",
   "completed_nodes": [
     "start",
     "toolchain",
@@ -9,11 +9,13 @@
     "implement",
     "simplify_opus",
     "simplify_gpt",
-    "verify"
+    "verify",
+    "fmt"
   ],
   "node_retries": {
     "toolchain": 1,
     "simplify_gpt": 1,
+    "fmt": 1,
     "preflight_lint": 1,
     "implement": 1,
     "preflight_compile": 1,
@@ -27,10 +29,10 @@
     "graph.model_stylesheet": "\n            * { backend: api; model: claude-opus-4-6;}\n        ",
     "outcome": "success",
     "last_stage": "simplify_opus",
-    "current.preamble": "Goal: # Plan: Merge fabro-linear and GitHub tracker into fabro-tracker\n\n## Context\n\nThe tracker ecosystem currently has three crates:\n- **fabro-tracker** — trait-only (57 lines): `Tracker` trait, `Issue`, `BlockerRef`\n- **fabro-linear** — standalone Linear functions that duplicate the `Issue`/`BlockerRef` types and don't implement the `Tracker` trait. Entirely unused.\n- **fabro-github** — mixed crate: GitHub App auth/PRs/branches (~70%) + `GitHubTracker` implementing `Tracker` (~30%). The `GitHubTracker` is also unused by consumers.\n\nGoal: consolidate both tracker implementations into `fabro-tracker`, keeping non-tracker GitHub code in `fabro-github`, and deleting `fabro-linear`.\n\n## Dependency Direction Change\n\n**Current:** `fabro-github → fabro-tracker` (for trait re-export)\n**After:** `fabro-tracker → fabro-github` (for auth primitives: `GitHubAppCredentials`, `sign_app_jwt`, `create_installation_access_token_for_projects`)\n\n`fabro-github` no longer depends on `fabro-tracker`. No circular dependency.\n\n## Steps\n\n### 1. Update `lib/crates/fabro-tracker/Cargo.toml`\n\nAdd dependencies needed by both implementations:\n```toml\n[dependencies]\nfabro-github = { path = \"../fabro-github\" }\nasync-trait.workspace = true\nserde.workspace = true\nserde_json.workspace = true\nreqwest.workspace = true\ntracing.workspace = true\ntokio = { workspace = true }\n\n[dev-dependencies]\nmockito = \"1\"\ntokio = { workspace = true, features = [\"test-util\", \"macros\"] }\n```\n\n### 2. Update `lib/crates/fabro-github/Cargo.toml`\n\nRemove:\n- `fabro-tracker = { path = \"../fabro-tracker\" }`\n- `async-trait.workspace = true`\n\n### 3. Remove tracker code from `lib/crates/fabro-github/src/lib.rs`\n\nRemove these items (keep everything else):\n- `use async_trait::async_trait;` (line 1)\n- `use tokio::sync::OnceCell;` (line 3)\n- `pub use fabro_tracker::{BlockerRef, Issue, Tracker};` (line 5)\n- `execute_github_graphql()` fn (~line 796)\n- `GitHubTracker` struct, `impl GitHubTracker`, `impl Tracker for GitHubTracker` (~line 866-1315)\n- `normalize_github_item()` fn (~line 981)\n- `fetch_project_items_page()` fn (~line 1035)\n- All tracker-related tests (~line 2172-2841): `execute_github_graphql` tests, tracker helpers (`mock_github_tracker`, `make_test_issue`, etc.), and all `GitHubTracker` method tests\n\n**Keep** `create_installation_access_token_for_projects()` — it stays in fabro-github as a public function alongside the other `create_installation_access_token_*` variants.\n\n### 4. Create `lib/crates/fabro-tracker/src/linear.rs`\n\nAdapt `fabro-linear/src/lib.rs` code:\n- **Remove** the duplicate `Issue` and `BlockerRef` struct definitions — use `crate::Issue` and `crate::BlockerRef`\n- **Adapt** `normalize_issue()` to return `crate::Issue` with `project_item_id: None`\n- **Create** `LinearTracker` struct wrapping `LinearConfig`, `reqwest::Client`, and `project_slug: String`\n- **Implement** `Tracker for LinearTracker` by delegating to the existing functions\n- **Keep** private: `execute_graphql`, `normalize_issue`, `extract_issues`, `ISSUE_FIELDS`, `BLOCKS_RELATION_TYPE`\n- **Keep** public: `LinearConfig`, `LinearTracker`, `LINEAR_API_ENDPOINT`\n- **Move** all tests, updating assertions for the added `project_item_id` field\n\n### 5. Create `lib/crates/fabro-tracker/src/github.rs`\n\nMove tracker code from fabro-github:\n- Import from fabro-github: `GitHubAppCredentials`, `sign_app_jwt`, `create_installation_access_token_for_projects`\n- Contains: `GitHubTracker` struct + impls, `execute_github_graphql`, `normalize_github_item`, `fetch_project_items_page`\n- Uses `crate::Issue` and `crate::BlockerRef` (same types, just different import path)\n- Move all GitHubTracker tests (duplicate `test_rsa_key()` helper since test code isn't importable across crates)\n\n### 6. Update `lib/crates/fabro-tracker/src/lib.rs`\n\nAdd module declarations and re-exports:\n```rust\npub mod github;\npub mod linear;\n\npub use github::GitHubTracker;\npub use linear::{LinearConfig, LinearTracker, LINEAR_API_ENDPOINT};\n```\n\n### 7. Delete `lib/crates/fabro-linear/`\n\nRemove entire directory. Workspace glob `members = [\"lib/crates/*\"]` handles the rest.\n\n## Verification\n\n```bash\ncargo build --workspace\ncargo test --workspace\ncargo clippy --workspace -- -D warnings\ncargo fmt --check --all\n```\n\nKey things to verify:\n- No circular dependency (fabro-tracker → fabro-github, fabro-github has no fabro-tracker dep)\n- Linear `normalize_issue` sets `project_item_id: None`\n- All moved tests pass in their new home\n- `test_rsa_key()` helper is duplicated in fabro-tracker's github test module\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, 113.7k tokens in / 38.3k out\n  - Files: /home/daytona/workspace/lib/crates/fabro-github/Cargo.toml, /home/daytona/workspace/lib/crates/fabro-github/src/lib.rs, /home/daytona/workspace/lib/crates/fabro-tracker/Cargo.toml, /home/daytona/workspace/lib/crates/fabro-tracker/src/github.rs, /home/daytona/workspace/lib/crates/fabro-tracker/src/lib.rs, /home/daytona/workspace/lib/crates/fabro-tracker/src/linear.rs\n- **simplify_opus**: success\n  - Model: claude-opus-4-6, 96.2k tokens in / 12.1k out\n  - Files: /home/daytona/workspace/lib/crates/fabro-tracker/Cargo.toml, /home/daytona/workspace/lib/crates/fabro-tracker/src/github.rs, /home/daytona/workspace/lib/crates/fabro-tracker/src/lib.rs, /home/daytona/workspace/lib/crates/fabro-tracker/src/linear.rs\n- **simplify_gpt**: fail\n\n## Context\n- failure_class: deterministic\n- failure_signature: simplify_gpt|deterministic|api_deterministic|anthropic|not_found\n",
+    "current.preamble": "Goal: # Plan: Merge fabro-linear and GitHub tracker into fabro-tracker\n\n## Context\n\nThe tracker ecosystem currently has three crates:\n- **fabro-tracker** — trait-only (57 lines): `Tracker` trait, `Issue`, `BlockerRef`\n- **fabro-linear** — standalone Linear functions that duplicate the `Issue`/`BlockerRef` types and don't implement the `Tracker` trait. Entirely unused.\n- **fabro-github** — mixed crate: GitHub App auth/PRs/branches (~70%) + `GitHubTracker` implementing `Tracker` (~30%). The `GitHubTracker` is also unused by consumers.\n\nGoal: consolidate both tracker implementations into `fabro-tracker`, keeping non-tracker GitHub code in `fabro-github`, and deleting `fabro-linear`.\n\n## Dependency Direction Change\n\n**Current:** `fabro-github → fabro-tracker` (for trait re-export)\n**After:** `fabro-tracker → fabro-github` (for auth primitives: `GitHubAppCredentials`, `sign_app_jwt`, `create_installation_access_token_for_projects`)\n\n`fabro-github` no longer depends on `fabro-tracker`. No circular dependency.\n\n## Steps\n\n### 1. Update `lib/crates/fabro-tracker/Cargo.toml`\n\nAdd dependencies needed by both implementations:\n```toml\n[dependencies]\nfabro-github = { path = \"../fabro-github\" }\nasync-trait.workspace = true\nserde.workspace = true\nserde_json.workspace = true\nreqwest.workspace = true\ntracing.workspace = true\ntokio = { workspace = true }\n\n[dev-dependencies]\nmockito = \"1\"\ntokio = { workspace = true, features = [\"test-util\", \"macros\"] }\n```\n\n### 2. Update `lib/crates/fabro-github/Cargo.toml`\n\nRemove:\n- `fabro-tracker = { path = \"../fabro-tracker\" }`\n- `async-trait.workspace = true`\n\n### 3. Remove tracker code from `lib/crates/fabro-github/src/lib.rs`\n\nRemove these items (keep everything else):\n- `use async_trait::async_trait;` (line 1)\n- `use tokio::sync::OnceCell;` (line 3)\n- `pub use fabro_tracker::{BlockerRef, Issue, Tracker};` (line 5)\n- `execute_github_graphql()` fn (~line 796)\n- `GitHubTracker` struct, `impl GitHubTracker`, `impl Tracker for GitHubTracker` (~line 866-1315)\n- `normalize_github_item()` fn (~line 981)\n- `fetch_project_items_page()` fn (~line 1035)\n- All tracker-related tests (~line 2172-2841): `execute_github_graphql` tests, tracker helpers (`mock_github_tracker`, `make_test_issue`, etc.), and all `GitHubTracker` method tests\n\n**Keep** `create_installation_access_token_for_projects()` — it stays in fabro-github as a public function alongside the other `create_installation_access_token_*` variants.\n\n### 4. Create `lib/crates/fabro-tracker/src/linear.rs`\n\nAdapt `fabro-linear/src/lib.rs` code:\n- **Remove** the duplicate `Issue` and `BlockerRef` struct definitions — use `crate::Issue` and `crate::BlockerRef`\n- **Adapt** `normalize_issue()` to return `crate::Issue` with `project_item_id: None`\n- **Create** `LinearTracker` struct wrapping `LinearConfig`, `reqwest::Client`, and `project_slug: String`\n- **Implement** `Tracker for LinearTracker` by delegating to the existing functions\n- **Keep** private: `execute_graphql`, `normalize_issue`, `extract_issues`, `ISSUE_FIELDS`, `BLOCKS_RELATION_TYPE`\n- **Keep** public: `LinearConfig`, `LinearTracker`, `LINEAR_API_ENDPOINT`\n- **Move** all tests, updating assertions for the added `project_item_id` field\n\n### 5. Create `lib/crates/fabro-tracker/src/github.rs`\n\nMove tracker code from fabro-github:\n- Import from fabro-github: `GitHubAppCredentials`, `sign_app_jwt`, `create_installation_access_token_for_projects`\n- Contains: `GitHubTracker` struct + impls, `execute_github_graphql`, `normalize_github_item`, `fetch_project_items_page`\n- Uses `crate::Issue` and `crate::BlockerRef` (same types, just different import path)\n- Move all GitHubTracker tests (duplicate `test_rsa_key()` helper since test code isn't importable across crates)\n\n### 6. Update `lib/crates/fabro-tracker/src/lib.rs`\n\nAdd module declarations and re-exports:\n```rust\npub mod github;\npub mod linear;\n\npub use github::GitHubTracker;\npub use linear::{LinearConfig, LinearTracker, LINEAR_API_ENDPOINT};\n```\n\n### 7. Delete `lib/crates/fabro-linear/`\n\nRemove entire directory. Workspace glob `members = [\"lib/crates/*\"]` handles the rest.\n\n## Verification\n\n```bash\ncargo build --workspace\ncargo test --workspace\ncargo clippy --workspace -- -D warnings\ncargo fmt --check --all\n```\n\nKey things to verify:\n- No circular dependency (fabro-tracker → fabro-github, fabro-github has no fabro-tracker dep)\n- Linear `normalize_issue` sets `project_item_id: None`\n- All moved tests pass in their new home\n- `test_rsa_key()` helper is duplicated in fabro-tracker's github test module\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, 113.7k tokens in / 38.3k out\n  - Files: /home/daytona/workspace/lib/crates/fabro-github/Cargo.toml, /home/daytona/workspace/lib/crates/fabro-github/src/lib.rs, /home/daytona/workspace/lib/crates/fabro-tracker/Cargo.toml, /home/daytona/workspace/lib/crates/fabro-tracker/src/github.rs, /home/daytona/workspace/lib/crates/fabro-tracker/src/lib.rs, /home/daytona/workspace/lib/crates/fabro-tracker/src/linear.rs\n- **simplify_opus**: success\n  - Model: claude-opus-4-6, 96.2k tokens in / 12.1k out\n  - Files: /home/daytona/workspace/lib/crates/fabro-tracker/Cargo.toml, /home/daytona/workspace/lib/crates/fabro-tracker/src/github.rs, /home/daytona/workspace/lib/crates/fabro-tracker/src/lib.rs, /home/daytona/workspace/lib/crates/fabro-tracker/src/linear.rs\n- **simplify_gpt**: fail\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    warning: function `init_repo_with_remote` is never used\n        --> lib/crates/fabro-workflows/src/git.rs:1153:8\n         |\n    1153 |     fn init_repo_with_remote(dir: &Path) -> (std::path::PathBuf, std::path::PathBuf) {\n         |        ^^^^^^^^^^^^^^^^^^^^^\n         |\n         = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default\n    \n    ────────────\n     Nextest run ID c82cdc4f-a6be-447c-a792-5b1384966106 with nextest profile: default\n        Starting 3243 tests across 45 binaries (179 tests skipped)\n    ────────────\n         Summary [  16.626s] 3243 tests run: 3243 passed, 179 skipped\n    ```\n  - Stderr: (empty)\n",
     "failure_signature": "",
     "internal.retry_count.preflight_compile": 1,
-    "command.output": "warning: function `init_repo_with_remote` is never used\n    --> lib/crates/fabro-workflows/src/git.rs:1153:8\n     |\n1153 |     fn init_repo_with_remote(dir: &Path) -> (std::path::PathBuf, std::path::PathBuf) {\n     |        ^^^^^^^^^^^^^^^^^^^^^\n     |\n     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default\n\n────────────\n Nextest run ID c82cdc4f-a6be-447c-a792-5b1384966106 with nextest profile: default\n    Starting 3243 tests across 45 binaries (179 tests skipped)\n────────────\n     Summary [  16.626s] 3243 tests run: 3243 passed, 179 skipped\n",
+    "command.output": "",
     "thread.implement.current_node": "simplify_opus",
     "internal.retry_count.simplify_gpt": 1,
     "failure_class": "",
@@ -42,8 +44,9 @@
     "internal.run_id": "01KM48VREXY70R1G29AQNTBP6Y",
     "thread.preflight_lint.current_node": "implement",
     "internal.retry_count.verify": 1,
-    "internal.thread_id": "simplify_gpt",
-    "current_node": "verify",
+    "internal.thread_id": "verify",
+    "current_node": "fmt",
+    "internal.retry_count.fmt": 1,
     "internal.retry_count.toolchain": 1,
     "response.implement": "Here's a summary of all changes made:\n\n## Summary of Changes\n\n### 1. `lib/crates/fabro-tracker/Cargo.toml` — Updated dependencies\nAdded `fabro-github`, `serde`, `serde_json`, `reqwest`, `tracing`, `tokio` as dependencies, and `mockito`/`tokio` as dev-dependencies to support both tracker implementations.\n\n### 2. `lib/crates/fabro-tracker/src/lib.rs` — Added module declarations and re-exports\nAdded `pub mod github;`, `pub mod linear;`, and re-exports: `GitHubTracker`, `LinearConfig`, `LinearTracker`, `LINEAR_API_ENDPOINT`.\n\n### 3. `lib/crates/fabro-tracker/src/github.rs` — New file (moved from fabro-github)\nContains `GitHubTracker` struct + impl, `execute_github_graphql`, `normalize_github_item`, `fetch_project_items_page`, and all GitHub tracker tests. Imports auth primitives from `fabro_github` and types from `crate::`.\n\n### 4. `lib/crates/fabro-tracker/src/linear.rs` — New file (adapted from fabro-linear)\nContains `LinearTracker` struct implementing `Tracker` trait, `LinearConfig`, all Linear API functions, and all tests. Uses `crate::{BlockerRef, Issue}` instead of duplicate struct definitions. `normalize_issue` now sets `project_item_id: None`.\n\n### 5. `lib/crates/fabro-github/Cargo.toml` — Removed tracker dependencies\nRemoved `fabro-tracker` and `async-trait` dependencies.\n\n### 6. `lib/crates/fabro-github/src/lib.rs` — Removed tracker code\nRemoved: `use async_trait`, `use tokio::sync::OnceCell`, `pub use fabro_tracker::*`, `execute_github_graphql`, `GitHubTracker` struct/impls, `normalize_github_item`, `fetch_project_items_page`, and all tracker-related tests. Kept `create_installation_access_token_for_projects` and all non-tracker code.\n\n### 7. Deleted `lib/crates/fabro-linear/` — Entire directory removed\nWorkspace glob `members = [\"lib/crates/*\"]` handles the workspace membership automatically.\n\n### Dependency direction change\n- **Before:** `fabro-github → fabro-tracker` \n- **After:** `fabro-tracker → fabro-github` (no circular dependency)",
     "thread.start.current_node": "toolchain",
@@ -51,6 +54,7 @@
     "last_response": "All clean. Here's a summary of what was fixed:\n\n## Summary\n\n**4 issues fixed, 2 skipped as expected/acceptable:**\n\n### Fixed\n1. **Unified duplicate GraphQL execution functions** (HIGH) — Extracted `",
     "command.stderr": "",
     "thread.simplify_opus.current_node": "simplify_gpt",
+    "thread.verify.current_node": "fmt",
     "graph.rankdir": "LR",
     "thread.toolchain.current_node": "preflight_compile",
     "thread.preflight_compile.current_node": "preflight_lint",
@@ -137,6 +141,15 @@
       ],
       "duration_ms": 896970
     },
+    "fmt": {
+      "status": "success",
+      "context_updates": {
+        "command.output": "",
+        "command.stderr": ""
+      },
+      "notes": "Script completed: cargo fmt --all 2>&1",
+      "duration_ms": 1072
+    },
     "preflight_lint": {
       "status": "success",
       "context_updates": {
@@ -160,13 +173,14 @@
       "duration_ms": 0
     }
   },
-  "next_node_id": "fmt",
+  "next_node_id": "exit",
   "loop_failure_signatures": {
     "simplify_gpt|deterministic|api_deterministic|anthropic|not_found": 1
   },
   "node_visits": {
     "toolchain": 1,
     "simplify_opus": 1,
+    "fmt": 1,
     "preflight_compile": 1,
     "start": 1,
     "verify": 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..66bb4d444
--- /dev/null
+++ b/nodes/fmt/script_timing.json
@@ -0,0 +1,5 @@
+{
+  "duration_ms": 1071,
+  "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..e30623071
--- /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": "2026-03-20T00:27:30.749629+00:00"
+}
\ No newline at end of file