checkpoint

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checkpoint.json

@@ -1,29 +1,36 @@
 {
-  "timestamp": "2026-03-16T05:32:37.329336Z",
-  "current_node": "setup",
+  "timestamp": "2026-03-16T05:36:26.336376Z",
+  "current_node": "solve",
   "completed_nodes": [
     "start",
-    "setup"
+    "setup",
+    "solve"
   ],
   "node_retries": {
     "start": 1,
-    "setup": 1
+    "setup": 1,
+    "solve": 1
   },
   "context_values": {
+    "last_stage": "solve",
     "internal.node_visit_count": 1,
     "command.output": "fatal: destination path '.' already exists and is not an empty directory.\n",
-    "internal.thread_id": "start",
+    "internal.thread_id": "setup",
     "command.stderr": "",
-    "current.preamble": "Goal: Add check to ensure max_length fits longest choice.\nDescription\n\t\nThere is currently no check to ensure that Field.max_length is large enough to fit the longest value in Field.choices.\nThis would be very helpful as often this mistake is not noticed until an attempt is made to save a record with those values that are too long.\n\n",
+    "response.solve": "All tests pass. Here's a summary of the changes made:\n\n## Changes\n\n### `django/db/models/fields/__init__.py`\n\n1. **Added `_check_max_length_choices` call to `CharField.check()`** — Includes the new check in the CharField system checks pipeline.\n\n2. **Added `CharField._check_max_length_choices()` method** — A new system check that:\n   - Only runs when both `max_length` and `choices` are set\n   - Uses `self.flatchoices` to handle both flat choices and grouped choices\n   - Filters to only string values (non-string choice values like integers don't have a length constraint)\n   - Gracefully handles invalid choices (TypeError/ValueError) since those are already caught by `_check_choices()`\n   - Returns `fields.E122` error when the longest choice value exceeds `max_length`\n\n### `tests/invalid_models_tests/test_ordinary_fields.py`\n\nAdded two test cases:\n- **`test_choices_longer_than_max_length`** — Verifies the error is raised for flat choices that exceed max_length\n- **`test_choices_in_groups_longer_than_max_length`** — Verifies the error is raised for grouped choices that exceed max_length",
+    "current.preamble": "Goal: Add check to ensure max_length fits longest choice.\nDescription\n\t\nThere is currently no check to ensure that Field.max_length is large enough to fit the longest value in Field.choices.\nThis would be very helpful as often this mistake is not noticed until an attempt is made to save a record with those values that are too long.\n\n\n## Completed stages\n- **setup**: fail\n  - Script: `git clone https://github.com/django/django.git . && git checkout fee75d2aed4e58ada6567c464cfd22e89dc65f4a && python -m pip install -e .`\n  - Stdout:\n    ```\n    fatal: destination path '.' already exists and is not an empty directory.\n    ```\n  - Stderr: (empty)\n\n## Context\n- failure_class: deterministic\n- failure_signature: setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.\n",
     "graph.rankdir": "LR",
-    "outcome": "fail",
-    "current_node": "setup",
+    "outcome": "success",
+    "internal.retry_count.solve": 1,
+    "current_node": "solve",
     "internal.run_id": "01KKTJ3AF4KC3M7YGJ5CRBC17X",
-    "failure_signature": "setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.",
+    "last_response": "All tests pass. Here's a summary of the changes made:\n\n## Changes\n\n### `django/db/models/fields/__init__.py`\n\n1. **Added `_check_max_length_choices` call to `CharField.check()`** — Includes the new ",
+    "failure_signature": "",
     "internal.retry_count.setup": 1,
     "internal.retry_count.start": 1,
     "internal.fidelity": "compact",
-    "failure_class": "deterministic",
+    "thread.setup.current_node": "solve",
+    "failure_class": "",
     "thread.start.current_node": "setup",
     "graph.goal": "Add check to ensure max_length fits longest choice.\nDescription\n\t\nThere is currently no check to ensure that Field.max_length is large enough to fit the longest value in Field.choices.\nThis would be very helpful as often this mistake is not noticed until an attempt is made to save a record with those values that are too long.\n"
   },
@@ -41,17 +48,41 @@
       },
       "duration_ms": 81
     },
+    "solve": {
+      "status": "success",
+      "context_updates": {
+        "last_stage": "solve",
+        "response.solve": "All tests pass. Here's a summary of the changes made:\n\n## Changes\n\n### `django/db/models/fields/__init__.py`\n\n1. **Added `_check_max_length_choices` call to `CharField.check()`** — Includes the new check in the CharField system checks pipeline.\n\n2. **Added `CharField._check_max_length_choices()` method** — A new system check that:\n   - Only runs when both `max_length` and `choices` are set\n   - Uses `self.flatchoices` to handle both flat choices and grouped choices\n   - Filters to only string values (non-string choice values like integers don't have a length constraint)\n   - Gracefully handles invalid choices (TypeError/ValueError) since those are already caught by `_check_choices()`\n   - Returns `fields.E122` error when the longest choice value exceeds `max_length`\n\n### `tests/invalid_models_tests/test_ordinary_fields.py`\n\nAdded two test cases:\n- **`test_choices_longer_than_max_length`** — Verifies the error is raised for flat choices that exceed max_length\n- **`test_choices_in_groups_longer_than_max_length`** — Verifies the error is raised for grouped choices that exceed max_length",
+        "last_response": "All tests pass. Here's a summary of the changes made:\n\n## Changes\n\n### `django/db/models/fields/__init__.py`\n\n1. **Added `_check_max_length_choices` call to `CharField.check()`** — Includes the new "
+      },
+      "notes": "Stage completed: solve",
+      "usage": {
+        "model": "claude-opus-4-6",
+        "input_tokens": 19943,
+        "output_tokens": 7935,
+        "cache_read_tokens": 638015,
+        "cache_write_tokens": 24486,
+        "reasoning_tokens": 60,
+        "cost": 0.89427
+      },
+      "files_touched": [
+        "/tmp/django_repo/django/db/models/fields/__init__.py",
+        "/tmp/django_repo/tests/invalid_models_tests/test_ordinary_fields.py"
+      ],
+      "duration_ms": 225842
+    },
     "start": {
       "status": "success",
       "duration_ms": 0
     }
   },
-  "next_node_id": "solve",
+  "next_node_id": "extract_patch",
   "loop_failure_signatures": {
     "setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.": 1
   },
   "node_visits": {
     "start": 1,
-    "setup": 1
+    "setup": 1,
+    "solve": 1
   }
 }

nodes/solve/prompt.md

@@ -0,0 +1,28 @@
+Goal: Add check to ensure max_length fits longest choice.
+Description
+	
+There is currently no check to ensure that Field.max_length is large enough to fit the longest value in Field.choices.
+This would be very helpful as often this mistake is not noticed until an attempt is made to save a record with those values that are too long.
+
+
+## Completed stages
+- **setup**: fail
+  - Script: `git clone https://github.com/django/django.git . && git checkout fee75d2aed4e58ada6567c464cfd22e89dc65f4a && python -m pip install -e .`
+  - Stdout:
+    ```
+    fatal: destination path '.' already exists and is not an empty directory.
+    ```
+  - Stderr: (empty)
+
+## Context
+- failure_class: deterministic
+- failure_signature: setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.
+
+
+Fix this GitHub issue in the repository. Make the minimal code change needed.
+
+Add check to ensure max_length fits longest choice.
+Description
+	
+There is currently no check to ensure that Field.max_length is large enough to fit the longest value in Field.choices.
+This would be very helpful as often this mistake is not noticed until an attempt is made to save a record with those values that are too long.

nodes/solve/provider_used.json

@@ -0,0 +1,5 @@
+{
+  "mode": "agent",
+  "provider": "anthropic",
+  "model": "claude-opus-4-6"
+}

nodes/solve/response.md

@@ -0,0 +1,20 @@
+All tests pass. Here's a summary of the changes made:
+
+## Changes
+
+### `django/db/models/fields/__init__.py`
+
+1. **Added `_check_max_length_choices` call to `CharField.check()`** — Includes the new check in the CharField system checks pipeline.
+
+2. **Added `CharField._check_max_length_choices()` method** — A new system check that:
+   - Only runs when both `max_length` and `choices` are set
+   - Uses `self.flatchoices` to handle both flat choices and grouped choices
+   - Filters to only string values (non-string choice values like integers don't have a length constraint)
+   - Gracefully handles invalid choices (TypeError/ValueError) since those are already caught by `_check_choices()`
+   - Returns `fields.E122` error when the longest choice value exceeds `max_length`
+
+### `tests/invalid_models_tests/test_ordinary_fields.py`
+
+Added two test cases:
+- **`test_choices_longer_than_max_length`** — Verifies the error is raised for flat choices that exceed max_length
+- **`test_choices_in_groups_longer_than_max_length`** — Verifies the error is raised for grouped choices that exceed max_length

nodes/solve/status.json

@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Stage completed: solve",
+  "failure_reason": null,
+  "timestamp": "2026-03-16T05:36:26.336057+00:00"
+}