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Clean up some files and add a new tutorial

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This commit is contained in:
K. Hodges 2026-05-17 17:18:27 -07:00
parent 71e65a1df4
commit 5e5cd184b9
63 changed files with 378 additions and 3567 deletions
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84
.nightshift/project-context-chart.md
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# Project Context Chart
## Entry Points
- `tests/test_lisp.py`: class SmokeTests(unittest.TestCase):
## Tests
- `tests/__init__.py`
- `tests/test_lisp.py`
## Files
### `agents/implementer.md`
- Responsibility: You are the implementation agent for NightShift.
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `agents/planner.md`
- Responsibility: You are the planning agent for NightShift.
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `agents/reviewer.md`
- Responsibility: You are the review agent for NightShift.
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `lisp.py`
- Responsibility: """Tiny Lisp quickstart target.
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `nightshift.yaml`
- Responsibility: project:
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `tasks.md`
- Responsibility: Tasks
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `tests/__init__.py`
- Responsibility: """Quickstart Lisp test suite."""
- Entry point: false
- Test file: true
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `tests/test_lisp.py`
- Responsibility: class SmokeTests(unittest.TestCase):
- Entry point: true
- Test file: true
- Functions: test_smoke@L5
- Classes: SmokeTests@L4
- Anchors/search terms: SmokeTests, test_smoke

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.nightshift/project-context.md
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# Project Context

89
.nightshift/runs/20260517T212359.709956Z/config.snapshot.yaml
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project:
name: tiny-lisp
root: .
task_file: tasks.md
artifact_dir: .nightshift
safety:
require_clean_worktree: false
scoped_paths:
- .
allowed_commands:
- python -m unittest discover -v
forbidden_commands:
- rm -rf
- git push
- curl | bash
agents:
planner:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.2
system_prompt: agents/planner.md
implementer:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.1
system_prompt: agents/implementer.md
reviewer:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.1
system_prompt: agents/reviewer.md
pipeline:
max_task_retries: 3
continue_on_task_failure: false
stages:
- id: plan
type: agent
agent: planner
output: plan.md
- id: context
type: repo_context
output: context-pack.md
- id: implement
type: code_writer
agent: implementer
output: proposed.patch
- id: normalize
type: patch_normalizer
output: normalized.patch
- id: validate_patch
type: patch_validator
output: patch-validation.md
max_files: 4
max_lines: 400
on_fail: implement
- id: apply_patch
type: patch_apply
mode: apply
output: patch-apply-output.txt
on_fail: implement
- id: test
type: command
commands:
- python -m unittest discover -v
output: test-output.txt
shell: true
timeout_seconds: 60
on_fail: implement
- id: review
type: agent_review
agent: reviewer
on_fail: implement
output: review.md
- id: summarize
type: summarize
output: final-notes.md

9
.nightshift/runs/20260517T212359.709956Z/prompts/implementer.md
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You are the implementation agent for NightShift.
Output only a unified diff.
Do not wrap the patch in markdown fences.
Do not include explanations before or after the patch.
Use diff --git headers.
Include tests when needed.
Keep the change as small as possible.
Only edit files needed for the task.

19
.nightshift/runs/20260517T212359.709956Z/prompts/planner.md
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You are the planning agent for NightShift.
Create a concise implementation plan for the current task.
If you need repository context before planning, output lookup requests exactly like this:
lookup_requests:
- tool: read_file
path: relative/path.py
- tool: grep
path: .
pattern: search_regex
After context is provided, write a short plan with:
- files to edit
- tests to add or update
- risks
Do not write code.

14
.nightshift/runs/20260517T212359.709956Z/prompts/reviewer.md
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@ -1,14 +0,0 @@
You are the review agent for NightShift.
Review the task, plan, patch artifacts, test output, and final state.
Output exactly:
status: pass | fail | retry | escalate
reason: <short explanation>
next_stage: <optional stage id>
context_update: <compact useful note>
Use retry when the implementation is close but needs another patch.
Use fail when the patch is unsafe, unrelated, or clearly broken.
Use pass only when the acceptance criteria are satisfied.

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.nightshift/runs/20260517T212359.709956Z/run-metadata.md
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# Run Metadata
Project: tiny-lisp
Experiment label:
Prompt variant:
## Agents
### planner
- Backend: ollama
- Model: qwen2.5-coder:14b
- Temperature: 0.2
- Base URL:
- Command:
- System prompt: agents\planner.md
### implementer
- Backend: ollama
- Model: qwen2.5-coder:14b
- Temperature: 0.1
- Base URL:
- Command:
- System prompt: agents\implementer.md
### reviewer
- Backend: ollama
- Model: qwen2.5-coder:14b
- Temperature: 0.1
- Base URL:
- Command:
- System prompt: agents\reviewer.md

17
.nightshift/runs/20260517T212359.709956Z/run-summary.md
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# Run Summary
- Task: TASK-001
- Status: failed
- Retry count: 3
- Reason: Retry limit reached after stage 'apply_patch': Patch apply failed with code 128.
- Experiment label:
- Prompt variant:
## Modified Files
- Unavailable or none detected
## Artifacts
- Final notes: `tasks\TASK-001\final-notes.md`
- Stage results: `tasks\TASK-001\stage-results.md`

78
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch
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diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")
+
+if __name__ == "__main__":
+ unittest.main()

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.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch
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diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")
+
+if __name__ == "__main__":
+ unittest.main()

75
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch
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@ -1,75 +0,0 @@
diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")

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.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/context-out.md
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# Context Out
Task: `TASK-001`
Status: failed
Reason: Retry limit reached after stage 'apply_patch': Patch apply failed with code 128.
## Retry Notes
- Context update from 'implement': Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/implementation-summary.md
- Retry 1: stage 'validate_patch' returned fail (Patch validation failed: patch creates existing file `lisp.py`.); redirecting to 'implement'.
- Context update from 'implement': Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-1.md
- Context update from 'apply_patch': C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
- Retry 2: stage 'apply_patch' returned fail (Patch apply failed with code 128.); redirecting to 'implement'.
- Context update from 'implement': Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-2.md
- Context update from 'apply_patch': C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
- Retry 3: stage 'apply_patch' returned fail (Patch apply failed with code 128.); redirecting to 'implement'.
- Context update from 'implement': Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-3.md
- Context update from 'apply_patch': C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
## Durable Notes
- Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/implementation-summary.md
- Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-1.md
- C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
- Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-2.md
- C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
- Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-3.md
- C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48

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@ -1,60 +0,0 @@
# Context Pack
Task: `TASK-001`
Title: Parse Lisp expressions
## Acceptance Criteria
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Constraints
- Scoped paths: .
- Repository lookups are read-only.
- Excerpts are line-numbered where files are read directly.
## Relevant Files
```text
lisp.py
tests/__init__.py
tests/test_lisp.py
```
## Search Results
### Search: parse
```text
tasks.md:21: Evaluate parsed arithmetic expressions.
```
### Search: lisp
```text
nightshift.yaml:2: name: tiny-lisp
```
### Search: expressions
```text
tasks.md:3: - [ ] TASK-001: Parse Lisp expressions
tasks.md:21: Evaluate parsed arithmetic expressions.
tasks.md:47: Implement simple truthiness and `if` expressions.
```
### Search: parses
```text
No matches found.
```
### Search: numbers
```text
tasks.md:9: - Parses numbers
```

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.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/context.md
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# Task Context
Task: `TASK-001`
Title: Parse Lisp expressions
## Description
Implement tokenization and parsing for a tiny Lisp subset.
## Acceptance Criteria
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests

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@ -1,3 +0,0 @@
Git diff unavailable.
Reason: project root is not a git work tree.

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.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/files-inspected.md
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# Repo Tool Calls
## 1. read_file
Arguments:
- path: `lisp_parser.py`
Output:
```text
File not found: lisp_parser.py
```
## 2. read_file
Arguments:
- path: `tests/test_lisp_parser.py`
Output:
```text
File not found: tests/test_lisp_parser.py
```
## 3. list_files
Arguments:
- path: `.`
- pattern: `*.py`
Output:
```text
lisp.py
tests/__init__.py
tests/test_lisp.py
```
## 4. grep
Arguments:
- path: `.`
- pattern: `def parse\(`
Output:
```text
No matches found.
```
## 5. grep
Arguments:
- path: `.`
- pattern: `class LispParser`
Output:
```text
No matches found.
```

49
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@ -1,49 +0,0 @@
# Final Task Notes
Task: `TASK-001`
Title: Parse Lisp expressions
Status: failed
Retry count: 3
Reason: Retry limit reached after stage 'apply_patch': Patch apply failed with code 128.
## Experiment
- Label:
- Prompt variant:
## Acceptance Criteria
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Stage Results
- `plan`: pass (Agent completed after repo lookup.)
- `context`: pass (Context pack written.)
- `implement`: pass (Proposed patch written.)
- `normalize`: pass (Normalized patch written.)
- `validate_patch`: fail (Patch validation failed: patch creates existing file `lisp.py`.)
- `implement`: pass (Proposed patch written.)
- `normalize`: pass (Normalized patch written.)
- `validate_patch`: pass (Patch validation passed.)
- `apply_patch`: fail (Patch apply failed with code 128.)
- `implement`: pass (Proposed patch written.)
- `normalize`: pass (Normalized patch written.)
- `validate_patch`: pass (Patch validation passed.)
- `apply_patch`: fail (Patch apply failed with code 128.)
- `implement`: pass (Proposed patch written.)
- `normalize`: pass (Normalized patch written.)
- `validate_patch`: pass (Patch validation passed.)
- `apply_patch`: fail (Patch apply failed with code 128.)
## Modified Files
- Unavailable or none detected
## Artifacts
- Stage results: `stage-results.md`
- Context out: `context-out.md`

16
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View File

@ -1,16 +0,0 @@
# Git Status after-patch-apply
Available: false
Exit code: 128
## stdout
```text
```
## stderr
```text
fatal: not a git repository (or any of the parent directories): .git
```

16
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/git-status-after.txt
View File

@ -1,16 +0,0 @@
# Git Status after
Available: false
Exit code: 128
## stdout
```text
```
## stderr
```text
fatal: not a git repository (or any of the parent directories): .git
```

16
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/git-status-before-patch-apply.txt
View File

@ -1,16 +0,0 @@
# Git Status before-patch-apply
Available: false
Exit code: 128
## stdout
```text
```
## stderr
```text
fatal: not a git repository (or any of the parent directories): .git
```

16
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/git-status-before.txt
View File

@ -1,16 +0,0 @@
# Git Status before
Available: false
Exit code: 128
## stdout
```text
```
## stderr
```text
fatal: not a git repository (or any of the parent directories): .git
```

10
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/implementation-summary.md
View File

@ -1,10 +0,0 @@
# Implementation Summary
Stage: `implement`
Status: pass
Repair attempt: 0
Patch: `.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/proposed.patch`
## Retry Feedback
- None

78
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/normalized-1.patch
View File

@ -1,78 +0,0 @@
diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")
+
+if __name__ == "__main__":
+ unittest.main()

78
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View File

@ -1,78 +0,0 @@
diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")
+
+if __name__ == "__main__":
+ unittest.main()

75
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/normalized-3.patch
View File

@ -1,75 +0,0 @@
diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")

80
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/normalized.patch
View File

@ -1,80 +0,0 @@
diff --git a/lisp.py b/lisp.py
new file mode 100644
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
new file mode 100644
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")
+
+if __name__ == "__main__":
+ unittest.main()

29
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/patch-apply-output-1.txt
View File

@ -1,29 +0,0 @@
# Patch Apply
Status: fail
Mode: apply
Patch: `.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch`
Command: `git apply --ignore-whitespace C:\Users\metis\Documents\tiny-lisp-nightshift\.nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\applied-1.patch`
Exit code: 128
## stdout
```text
```
## stderr
```text
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
```

29
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/patch-apply-output-2.txt
View File

@ -1,29 +0,0 @@
# Patch Apply
Status: fail
Mode: apply
Patch: `.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch`
Command: `git apply --ignore-whitespace C:\Users\metis\Documents\tiny-lisp-nightshift\.nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\applied-2.patch`
Exit code: 128
## stdout
```text
```
## stderr
```text
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
```

29
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/patch-apply-output-3.txt
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@ -1,29 +0,0 @@
# Patch Apply
Status: fail
Mode: apply
Patch: `.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch`
Command: `git apply --ignore-whitespace C:\Users\metis\Documents\tiny-lisp-nightshift\.nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\applied-3.patch`
Exit code: 128
## stdout
```text
```
## stderr
```text
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
```

10
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View File

@ -1,10 +0,0 @@
# Patch Validation
Status: pass
Changed files: 2
Changed lines: 68
## Files
- `lisp.py`
- `tests/test_lisp.py`

10
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View File

@ -1,10 +0,0 @@
# Patch Validation
Status: pass
Changed files: 2
Changed lines: 68
## Files
- `lisp.py`
- `tests/test_lisp.py`

10
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/patch-validation-3.md
View File

@ -1,10 +0,0 @@
# Patch Validation
Status: pass
Changed files: 2
Changed lines: 65
## Files
- `lisp.py`
- `tests/test_lisp.py`

4
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/patch-validation.md
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@ -1,4 +0,0 @@
# Patch Validation
Status: fail
Reason: Patch validation failed: patch creates existing file `lisp.py`.

193
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@ -1,193 +0,0 @@
# Agent Output: plan
Agent: `planner`
Command: `POST http://localhost:11434/api/generate`
Exit code: 0
Duration seconds: 0.942
Timed out: false
## stdout
```text
lookup_requests:
- tool: read_file
path: lisp.py
- tool: read_file
path: tests/test_lisp.py
After context is provided, write a short plan with:
- files to edit
- tests to add or update
- risks
```
## stderr
```text
```
## Prompt
```markdown
# NightShift Agent Input
## System Prompt
You are the planning agent for NightShift.
Create a concise implementation plan for the current task.
If you need repository context before planning, output lookup requests exactly like this:
lookup_requests:
- tool: read_file
path: relative/path.py
- tool: grep
path: .
pattern: search_regex
After context is provided, write a short plan with:
- files to edit
- tests to add or update
- risks
Do not write code.
## Stage
- id: plan
- type: agent
## Task
- [ ] TASK-001: Parse Lisp expressions
Description:
Implement tokenization and parsing for a tiny Lisp subset.
Acceptance Criteria:
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Acceptance Criteria
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Project Context
# Project Context
## Task Context
# Task Context
Task: `TASK-001`
Title: Parse Lisp expressions
## Description
Implement tokenization and parsing for a tiny Lisp subset.
## Acceptance Criteria
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Previous Stage Output
## repo_lookup_results
# Repo Tool Calls
## 1. read_file
Arguments:
- path: `lisp_parser.py`
Output:
```text
File not found: lisp_parser.py
```
## 2. read_file
Arguments:
- path: `tests/test_lisp_parser.py`
Output:
```text
File not found: tests/test_lisp_parser.py
```
## 3. list_files
Arguments:
- path: `.`
- pattern: `*.py`
Output:
```text
lisp.py
tests/__init__.py
tests/test_lisp.py
```
## 4. grep
Arguments:
- path: `.`
- pattern: `def parse\(`
Output:
```text
No matches found.
```
## 5. grep
Arguments:
- path: `.`
- pattern: `class LispParser`
Output:
```text
No matches found.
```
## Retry Notes
- Repository lookup results have been provided. Write the final plan now; do not request more lookups.
## Output Contract
Write the requested stage output in concise markdown.
If you need repository context before finalizing the plan, include:
lookup_requests:
- tool: list_files | read_file | grep
path: <relative path>
pattern: <glob for list_files or regex for grep>
Use at most 5 lookup requests.
Do not repeat the same lookup request.
Prefer read_file for likely-relevant files over many grep variations.
Do not search .nightshift, .git, virtualenvs, caches, or artifact directories.
NightShift will run these read-only lookup tools, save files-inspected.md, and re-run this planner stage with the retrieved context.
```

825
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/proposed.patch
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@ -1,825 +0,0 @@
# Agent Output: implement
Agent: `implementer`
Command: `POST http://localhost:11434/api/generate`
Exit code: 0
Duration seconds: 10.410
Timed out: false
## stdout
```text
diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")
```
## stderr
```text
```
## Prompt
```markdown
# NightShift Agent Input
## System Prompt
You are the implementation agent for NightShift.
Output only a unified diff.
Do not wrap the patch in markdown fences.
Do not include explanations before or after the patch.
Use diff --git headers.
Include tests when needed.
Keep the change as small as possible.
Only edit files needed for the task.
## Stage
- id: implement
- type: code_writer
## Task
- [ ] TASK-001: Parse Lisp expressions
Description:
Implement tokenization and parsing for a tiny Lisp subset.
Acceptance Criteria:
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Acceptance Criteria
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Project Context
# Project Context
## Task Context
# Task Context
Task: `TASK-001`
Title: Parse Lisp expressions
## Description
Implement tokenization and parsing for a tiny Lisp subset.
## Acceptance Criteria
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Previous Stage Output
## plan
# Agent Output: plan
Agent: `planner`
Command: `POST http://localhost:11434/api/generate`
Exit code: 0
Duration seconds: 0.942
Timed out: false
## stdout
```text
lookup_requests:
- tool: read_file
path: lisp.py
- tool: read_file
path: tests/test_lisp.py
After context is provided, write a short plan with:
- files to edit
- tests to add or update
- risks
```
## stderr
```text
```
## Prompt
```markdown
# NightShift Agent Input
## System Prompt
You are the planning agent for NightShift.
Create a concise implementation plan for the current task.
If you need repository context before planning, output lookup requests exactly like this:
lookup_requests:
- tool: read_file
path: relative/path.py
- tool: grep
path: .
pattern: search_regex
After context is provided, write a short plan with:
- files to edit
- tests to add or update
- risks
Do not write code.
## Stage
- id: plan
- type: agent
## Task
- [ ] TASK-001: Parse Lisp expressions
Description:
Implement tokenization and parsing for a tiny Lisp subset.
Acceptance Criteria:
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Acceptance Criteria
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Project Context
# Project Context
## Task Context
# Task Context
Task: `TASK-001`
Title: Parse Lisp expressions
## Description
Implement tokenization and parsing for a tiny Lisp subset.
## Acceptance Criteria
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Previous Stage Output
## repo_lookup_results
# Repo Tool Calls
## 1. read_file
Arguments:
- path: `lisp_parser.py`
Output:
```text
File not found: lisp_parser.py
```
## 2. read_file
Arguments:
- path: `tests/test_lisp_parser.py`
Output:
```text
File not found: tests/test_lisp_parser.py
```
## 3. list_files
Arguments:
- path: `.`
- pattern: `*.py`
Output:
```text
lisp.py
tests/__init__.py
tests/test_lisp.py
```
## 4. grep
Arguments:
- path: `.`
- pattern: `def parse\(`
Output:
```text
No matches found.
```
## 5. grep
Arguments:
- path: `.`
- pattern: `class LispParser`
Output:
```text
No matches found.
```
## Retry Notes
- Repository lookup results have been provided. Write the final plan now; do not request more lookups.
## Output Contract
Write the requested stage output in concise markdown.
If you need repository context before finalizing the plan, include:
lookup_requests:
- tool: list_files | read_file | grep
path: <relative path>
pattern: <glob for list_files or regex for grep>
Use at most 5 lookup requests.
Do not repeat the same lookup request.
Prefer read_file for likely-relevant files over many grep variations.
Do not search .nightshift, .git, virtualenvs, caches, or artifact directories.
NightShift will run these read-only lookup tools, save files-inspected.md, and re-run this planner stage with the retrieved context.
```
## context
# Context Pack
Task: `TASK-001`
Title: Parse Lisp expressions
## Acceptance Criteria
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Constraints
- Scoped paths: .
- Repository lookups are read-only.
- Excerpts are line-numbered where files are read directly.
## Relevant Files
```text
lisp.py
tests/__init__.py
tests/test_lisp.py
```
## Search Results
### Search: parse
```text
tasks.md:21: Evaluate parsed arithmetic expressions.
```
### Search: lisp
```text
nightshift.yaml:2: name: tiny-lisp
```
### Search: expressions
```text
tasks.md:3: - [ ] TASK-001: Parse Lisp expressions
tasks.md:21: Evaluate parsed arithmetic expressions.
tasks.md:47: Implement simple truthiness and `if` expressions.
```
### Search: parses
```text
No matches found.
```
### Search: numbers
```text
tasks.md:9: - Parses numbers
```
## implement
diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")
+
+if __name__ == "__main__":
+ unittest.main()
## normalize
diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")
+
+if __name__ == "__main__":
+ unittest.main()
## validate_patch
# Patch Validation
Status: pass
Changed files: 2
Changed lines: 68
## Files
- `lisp.py`
- `tests/test_lisp.py`
## apply_patch
# Patch Apply
Status: fail
Mode: apply
Patch: `.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch`
Command: `git apply --ignore-whitespace C:\Users\metis\Documents\tiny-lisp-nightshift\.nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\applied-2.patch`
Exit code: 128
## stdout
```text
```
## stderr
```text
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
```
## context-pack.md
# Context Pack
Task: `TASK-001`
Title: Parse Lisp expressions
## Acceptance Criteria
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
## Constraints
- Scoped paths: .
- Repository lookups are read-only.
- Excerpts are line-numbered where files are read directly.
## Relevant Files
```text
lisp.py
tests/__init__.py
tests/test_lisp.py
```
## Search Results
### Search: parse
```text
tasks.md:21: Evaluate parsed arithmetic expressions.
```
### Search: lisp
```text
nightshift.yaml:2: name: tiny-lisp
```
### Search: expressions
```text
tasks.md:3: - [ ] TASK-001: Parse Lisp expressions
tasks.md:21: Evaluate parsed arithmetic expressions.
tasks.md:47: Implement simple truthiness and `if` expressions.
```
### Search: parses
```text
No matches found.
```
### Search: numbers
```text
tasks.md:9: - Parses numbers
```
## project-context-chart.md
# Project Context Chart
## Entry Points
- `tests/test_lisp.py`: class SmokeTests(unittest.TestCase):
## Tests
- `tests/__init__.py`
- `tests/test_lisp.py`
## Files
### `agents/implementer.md`
- Responsibility: You are the implementation agent for NightShift.
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `agents/planner.md`
- Responsibility: You are the planning agent for NightShift.
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `agents/reviewer.md`
- Responsibility: You are the review agent for NightShift.
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `lisp.py`
- Responsibility: """Tiny Lisp quickstart target.
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `nightshift.yaml`
- Responsibility: project:
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `tasks.md`
- Responsibility: Tasks
- Entry point: false
- Test file: false
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `tests/__init__.py`
- Responsibility: """Quickstart Lisp test suite."""
- Entry point: false
- Test file: true
- Functions: None detected
- Classes: None detected
- Anchors/search terms: None detected
### `tests/test_lisp.py`
- Responsibility: class SmokeTests(unittest.TestCase):
- Entry point: true
- Test file: true
- Functions: test_smoke@L5
- Classes: SmokeTests@L4
- Anchors/search terms: SmokeTests, test_smoke
## Retry Notes
- Context update from 'implement': Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/implementation-summary.md
- Retry 1: stage 'validate_patch' returned fail (Patch validation failed: patch creates existing file `lisp.py`.); redirecting to 'implement'.
- Context update from 'implement': Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-1.md
- Context update from 'apply_patch': C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
- Retry 2: stage 'apply_patch' returned fail (Patch apply failed with code 128.); redirecting to 'implement'.
- Context update from 'implement': Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-2.md
- Context update from 'apply_patch': C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
- Retry 3: stage 'apply_patch' returned fail (Patch apply failed with code 128.); redirecting to 'implement'.
## Output Contract
Return a unified diff only, suitable for saving as proposed.patch or repair-N.patch.
Do not include prose outside the patch.
Use diff --git headers and hunk headers.
For existing files, do not use new file mode or /dev/null headers.
On repair attempts, return a complete corrected replacement diff.
```

78
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-1.patch
View File

@ -1,78 +0,0 @@
diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")
+
+if __name__ == "__main__":
+ unittest.main()

78
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-2.patch
View File

@ -1,78 +0,0 @@
diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")
+
+if __name__ == "__main__":
+ unittest.main()

75
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-3.patch
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@ -1,75 +0,0 @@
diff --git a/lisp.py b/lisp.py
index 0000000..f2a5c3d
--- /dev/null
+++ b/lisp.py
@@ -0,0 +1,78 @@
+import re
+
+class LispParser:
+ def __init__(self, expression):
+ self.expression = expression
+ self.tokens = self.tokenize()
+ self.index = 0
+
+ def tokenize(self):
+ token_pattern = r'\s*([()])|(\d+)|([a-zA-Z_][a-zA-Z0-9_]*)'
+ tokens = re.findall(token_pattern, self.expression)
+ return [token for group in tokens for token in group if token]
+
+ def parse(self):
+ result = []
+ while self.index < len(self.tokens):
+ token = self.tokens[self.index]
+ if token == '(':
+ self.index += 1
+ result.append(self.parse())
+ elif token == ')':
+ return result
+ else:
+ result.append(self.parse_atom(token))
+ self.index += 1
+ if len(result) == 1:
+ return result[0]
+ return result
+
+ def parse_atom(self, token):
+ try:
+ return int(token)
+ except ValueError:
+ return token
+
+def parse_lisp(expression):
+ parser = LispParser(expression)
+ return parser.parse()
+
+if __name__ == "__main__":
+ expression = "(1 2 (3 4) a b)"
+ print(parse_lisp(expression))
diff --git a/tests/test_lisp.py b/tests/test_lisp.py
index 0000000..b5c7d8e
--- /dev/null
+++ b/tests/test_lisp.py
@@ -0,0 +1,39 @@
+import unittest
+from lisp import parse_lisp
+
+class TestLispParser(unittest.TestCase):
+ def test_parse_numbers(self):
+ self.assertEqual(parse_lisp("123"), 123)
+ self.assertEqual(parse_lisp("(1 2 3)"), [1, 2, 3])
+
+ def test_parse_symbols(self):
+ self.assertEqual(parse_lisp("a"), "a")
+ self.assertEqual(parse_lisp("(a b c)"), ["a", "b", "c"])
+
+ def test_parse_nested_lists(self):
+ self.assertEqual(parse_lisp("(1 (2 3) 4)"), [1, [2, 3], 4])
+ self.assertEqual(parse_lisp("((a b) (c d))"), [["a", "b"], ["c", "d"]])
+
+ def test_unbalanced_parentheses(self):
+ with self.assertRaises(IndexError):
+ parse_lisp("(")
+ with self.assertRaises(IndexError):
+ parse_lisp(")")
+ with self.assertRaises(IndexError):
+ parse_lisp("(1 2 (3 4)")

11
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-1.md
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@ -1,11 +0,0 @@
# Implementation Summary
Stage: `implement`
Status: pass
Repair attempt: 1
Patch: `.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-1.patch`
## Retry Feedback
- Context update from 'implement': Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/implementation-summary.md
- Retry 1: stage 'validate_patch' returned fail (Patch validation failed: patch creates existing file `lisp.py`.); redirecting to 'implement'.

24
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-2.md
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@ -1,24 +0,0 @@
# Implementation Summary
Stage: `implement`
Status: pass
Repair attempt: 2
Patch: `.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-2.patch`
## Retry Feedback
- Context update from 'implement': Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/implementation-summary.md
- Retry 1: stage 'validate_patch' returned fail (Patch validation failed: patch creates existing file `lisp.py`.); redirecting to 'implement'.
- Context update from 'implement': Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-1.md
- Context update from 'apply_patch': C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
- Retry 2: stage 'apply_patch' returned fail (Patch apply failed with code 128.); redirecting to 'implement'.

34
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-3.md
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@ -1,34 +0,0 @@
# Implementation Summary
Stage: `implement`
Status: pass
Repair attempt: 3
Patch: `.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-3.patch`
## Retry Feedback
- Context update from 'apply_patch': C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
- Retry 2: stage 'apply_patch' returned fail (Patch apply failed with code 128.); redirecting to 'implement'.
- Context update from 'implement': Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-2.md
- Context update from 'apply_patch': C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
- Retry 3: stage 'apply_patch' returned fail (Patch apply failed with code 128.); redirecting to 'implement'.

172
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/stage-results.md
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@ -1,172 +0,0 @@
# Stage Results
Task: `TASK-001`
Status: failed
Retry count: 3
Reason: Retry limit reached after stage 'apply_patch': Patch apply failed with code 128.
## plan
Status: pass
Reason: Agent completed after repo lookup.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\plan.md
Next stage:
Context update:
## context
Status: pass
Reason: Context pack written.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\context-pack.md
Next stage:
Context update:
## implement
Status: pass
Reason: Proposed patch written.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\proposed.patch
Next stage:
Context update: Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/implementation-summary.md
## normalize
Status: pass
Reason: Normalized patch written.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\normalized.patch
Next stage:
Context update:
## validate_patch
Status: fail
Reason: Patch validation failed: patch creates existing file `lisp.py`.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\patch-validation.md
Next stage:
Context update:
## implement
Status: pass
Reason: Proposed patch written.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\repair-1.patch
Next stage:
Context update: Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-1.md
## normalize
Status: pass
Reason: Normalized patch written.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\normalized-1.patch
Next stage:
Context update:
## validate_patch
Status: pass
Reason: Patch validation passed.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\patch-validation-1.md
Next stage:
Context update:
## apply_patch
Status: fail
Reason: Patch apply failed with code 128.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\patch-apply-output-1.txt
Next stage:
Context update: C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
## implement
Status: pass
Reason: Proposed patch written.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\repair-2.patch
Next stage:
Context update: Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-2.md
## normalize
Status: pass
Reason: Normalized patch written.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\normalized-2.patch
Next stage:
Context update:
## validate_patch
Status: pass
Reason: Patch validation passed.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\patch-validation-2.md
Next stage:
Context update:
## apply_patch
Status: fail
Reason: Patch apply failed with code 128.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\patch-apply-output-2.txt
Next stage:
Context update: C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48
## implement
Status: pass
Reason: Proposed patch written.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\repair-3.patch
Next stage:
Context update: Implementation summary: .nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-3.md
## normalize
Status: pass
Reason: Normalized patch written.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\normalized-3.patch
Next stage:
Context update:
## validate_patch
Status: pass
Reason: Patch validation passed.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\patch-validation-3.md
Next stage:
Context update:
## apply_patch
Status: fail
Reason: Patch apply failed with code 128.
Output: .nightshift\runs\20260517T212359.709956Z\tasks\TASK-001\patch-apply-output-3.txt
Next stage:
Context update: C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:6: trailing whitespace.
import re
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:7: trailing whitespace.
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:8: trailing whitespace.
class LispParser:
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:9: trailing whitespace.
def __init__(self, expression):
C:/Users/metis/Documents/tiny-lisp-nightshift/.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch:10: trailing whitespace.
self.expression = expression
error: corrupt patch at line 48

5
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/task-completion.md
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@ -1,5 +0,0 @@
# Task Completion
Task: `TASK-001`
Pipeline status: failed
Marked complete: false

11
.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/task.md
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@ -1,11 +0,0 @@
- [ ] TASK-001: Parse Lisp expressions
Description:
Implement tokenization and parsing for a tiny Lisp subset.
Acceptance Criteria:
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests

6
README.md
View File

@ -113,6 +113,12 @@ nightshift status
nightshift run --task TASK-001 nightshift run --task TASK-001
``` ```
For the first real-model tutorial target:
```bash
nightshift init --template imageboard --root nightshift-imageboard
```
Open the read-only artifact dashboard: Open the read-only artifact dashboard:
```bash ```bash

95
examples/quickstart-lisp/agents/fake_code_writer.py
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@ -1,95 +0,0 @@
"""Fake code writer for the NightShift end-to-end quickstart."""
from __future__ import annotations
from pathlib import Path
import difflib
FILES = {
"lisp.py": '''"""Tiny Lisp parser used by the NightShift quickstart."""
def tokenize(source):
spaced = source.replace("(", " ( ").replace(")", " ) ")
return spaced.split()
def parse(source):
tokens = tokenize(source)
if not tokens:
raise ValueError("empty expression")
expression = _parse_tokens(tokens)
if tokens:
raise ValueError("unexpected trailing tokens")
return expression
def _parse_tokens(tokens):
if not tokens:
raise ValueError("unexpected end of input")
token = tokens.pop(0)
if token == "(":
values = []
while tokens and tokens[0] != ")":
values.append(_parse_tokens(tokens))
if not tokens:
raise ValueError("unbalanced parentheses")
tokens.pop(0)
return values
if token == ")":
raise ValueError("unexpected closing parenthesis")
return _atom(token)
def _atom(token):
try:
return int(token)
except ValueError:
return token
''',
"tests/test_lisp.py": """import unittest
from lisp import parse
class ParserTests(unittest.TestCase):
def test_parses_numbers(self):
self.assertEqual(parse("42"), 42)
def test_parses_symbols(self):
self.assertEqual(parse("answer"), "answer")
def test_parses_nested_lists(self):
self.assertEqual(parse("(+ 1 (* 2 3))"), ["+", 1, ["*", 2, 3]])
def test_rejects_unbalanced_parentheses(self):
with self.assertRaises(ValueError):
parse("(+ 1 2")
if __name__ == "__main__":
unittest.main()
""",
}
def main() -> None:
chunks: list[str] = []
for relative_path, desired in FILES.items():
path = Path(relative_path)
current = path.read_text(encoding="utf-8") if path.exists() else ""
chunks.append(f"diff --git a/{relative_path} b/{relative_path}\n")
chunks.extend(
difflib.unified_diff(
current.splitlines(keepends=True),
desired.splitlines(keepends=True),
fromfile=f"a/{relative_path}",
tofile=f"b/{relative_path}",
)
)
print("".join(chunks), end="")
if __name__ == "__main__":
main()

20
examples/quickstart-lisp/agents/fake_planner.py
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@ -1,20 +0,0 @@
"""Fake planner for the NightShift end-to-end quickstart."""
from __future__ import annotations
import sys
prompt = sys.stdin.read()
if "repo_lookup_results" in prompt:
print("# Plan")
print("")
print("- Use the context pack and inspected files.")
print("- Add parser functions to `lisp.py`.")
print("- Replace the smoke test with parser unit tests.")
else:
print("lookup_requests:")
print("- tool: read_file")
print(" path: lisp.py")
print("- tool: read_file")
print(" path: tests/test_lisp.py")

4
examples/quickstart-lisp/agents/implementer.md
View File

@ -1,4 +0,0 @@
You are the implementation agent.
Output only a unified diff.
Implement the smallest correct change and include tests when needed.

7
examples/quickstart-lisp/agents/planner.md
View File

@ -1,7 +0,0 @@
You are the planning agent. Create a small conservative plan.
Include:
- relevant files
- implementation steps
- tests
- risks

7
examples/quickstart-lisp/agents/reviewer.md
View File

@ -1,7 +0,0 @@
You are the review agent.
Output:
status: pass | fail | retry | escalate
reason: <short explanation>
next_stage: <optional stage id>
context_update: <compact useful note>

4
examples/quickstart-lisp/lisp.py
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@ -1,4 +0,0 @@
"""Tiny Lisp quickstart target.
NightShift tasks in this example are intended to fill this module in.
"""

90
examples/quickstart-lisp/nightshift.yaml
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@ -1,90 +0,0 @@
project:
name: tiny-lisp
root: .
task_file: tasks.md
artifact_dir: .nightshift
safety:
require_clean_worktree: false
scoped_paths:
- .
allowed_commands:
- python -m unittest discover -v
forbidden_commands:
- rm -rf
- git push
- curl | bash
experiment:
label: quickstart-lisp
prompt_variant: fake-agent-v1
agents:
planner:
backend: command
command: python agents/fake_planner.py
system_prompt: agents/planner.md
implementer:
backend: command
command: python agents/fake_code_writer.py
system_prompt: agents/implementer.md
reviewer:
backend: command
command: python -c "print('status: pass'); print('reason: quickstart reviewer accepted artifacts')"
system_prompt: agents/reviewer.md
pipeline:
max_task_retries: 3
continue_on_task_failure: false
stages:
- id: plan
type: agent
agent: planner
output: plan.md
- id: context
type: repo_context
output: context-pack.md
- id: implement
type: code_writer
agent: implementer
output: proposed.patch
- id: normalize
type: patch_normalizer
output: normalized.patch
- id: validate_patch
type: patch_validator
output: patch-validation.md
max_files: 4
max_lines: 400
on_fail: implement
- id: apply_patch
type: patch_apply
mode: apply
output: patch-apply-output.txt
on_fail: implement
- id: test
type: command
commands:
- python -m unittest discover -v
output: test-output.txt
shell: true
timeout_seconds: 60
on_fail: implement
- id: review
type: agent_review
agent: reviewer
on_fail: implement
output: review.md
- id: summarize
type: summarize
output: final-notes.md

39
examples/quickstart-lisp/tasks.md
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@ -1,39 +0,0 @@
# Tasks
- [ ] TASK-001: Parse Lisp expressions
Description:
Implement tokenization and parsing for a tiny Lisp subset.
Acceptance Criteria:
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
- [ ] TASK-002: Evaluate arithmetic forms
Dependencies:
- TASK-001
Description:
Evaluate parsed arithmetic expressions.
Acceptance Criteria:
- Supports `+`, `-`, `*`, and `/`
- Evaluates nested arithmetic
- Includes unit tests
- [ ] TASK-003: Add variables and definitions
Dependencies:
- TASK-002
Description:
Add an environment and support variable lookup and definitions.
Acceptance Criteria:
- Supports symbol lookup
- Supports `(define name value)`
- Keeps environment behavior tested

1
examples/quickstart-lisp/tests/__init__.py
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@ -1 +0,0 @@
"""Quickstart Lisp test suite."""

10
examples/quickstart-lisp/tests/test_lisp.py
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@ -1,10 +0,0 @@
import unittest
class SmokeTests(unittest.TestCase):
def test_smoke(self):
self.assertTrue(True)
if __name__ == "__main__":
unittest.main()

418
examples/tutorial/01-imageboard/README.md
View File

@ -1,22 +1,40 @@
# Tutorial 01: Building A Small Imageboard With Real Local Models # Tutorial 01: Building A Small Imageboard With Real Local Models
This tutorial starts after the quickstart. The quickstart uses fake command agents so you can verify the pipeline deterministically. Here, you will point NightShift at a small web application and let a local model implement one feature slice at a time. This tutorial starts after the quickstart. The quickstart uses fake command agents so you can verify the pipeline deterministically. Here, you will use a named NightShift template and let a local model build the target application.
The target is a compact 4chan-style imageboard: boards, threads, replies, images, tripcodes, sessions, reports, and moderation. That is larger than a toy parser, but it is a better first real-model target because each task maps to ordinary web-app files and tests. The target is a compact 4chan-style imageboard: boards, threads, replies, images, tripcodes, sessions, reports, and moderation. That is larger than a toy parser, but it is a better first real-model target because failures are ordinary web-app failures: routes, schema, file handling, tests, and model helpers.
Keep the first run scoped to `TASK-001`. Let later tasks build on the previous completed task. ## What The Template Creates
## What You Will Build Run this from a disposable parent directory:
You will create a disposable Flask project with SQLite and use NightShift to implement: ```bash
nightshift init --template imageboard --root nightshift-imageboard
cd nightshift-imageboard
```
1. Board and thread data model, routes, SQLite schema, and tests. The template creates:
2. Image upload and thumbnail generation.
3. Bump ordering and reply counters.
4. Tripcodes and session cookies.
5. Moderation and report queue.
NightShift still controls the workflow. The model proposes code; NightShift validates, applies, tests, records artifacts, and shows the result in the dashboard. ```text
nightshift.yaml
.nightshift/
agents/
planner.md
implementer.md
reviewer.md
tasks.md
src/
imageboard/
tests/
templates/
static/
uploads/
thumbs/
```
NightShift control files live in `.nightshift/`. Application source lives under `src/`, tests under `tests/`, HTML templates under `templates/`, and image/static files under `static/`.
The template does not create the Flask app, schema, models, or tests. That is intentional: `TASK-001` asks the agent to create the initial application slice. This is a better exercise of NightShift than pre-building the app and asking for a small patch.
## Prerequisites ## Prerequisites
@ -26,7 +44,7 @@ Install NightShift from this repository:
python -m pip install -e . python -m pip install -e .
``` ```
Install runtime dependencies for the target project: Install target project dependencies:
```bash ```bash
python -m pip install flask pillow pytest python -m pip install flask pillow pytest
@ -41,371 +59,65 @@ ollama list
NightShift uses Ollama's local HTTP API, normally at `http://localhost:11434`. NightShift uses Ollama's local HTTP API, normally at `http://localhost:11434`.
## 1. Create A Scratch Target Project ## Task Plan
Do not run apply-mode experiments directly inside the NightShift repo. Create a disposable project. The template writes this task sequence to `.nightshift/tasks.md`.
PowerShell: 1. Board and thread foundation
Implement the initial data model, SQLite schema, model helpers, `/board/<name>` and `/thread/<id>` routes, and tests.
```powershell 2. Image upload and thumbnails
$TargetProject = "$HOME\Documents\nightshift-imageboard" Add image attachments, metadata, upload storage under `static/uploads`, and thumbnails under `static/thumbs`.
New-Item -ItemType Directory -Force $TargetProject
Set-Location $TargetProject
New-Item -ItemType Directory -Force agents, tests, static\uploads, static\thumbs, templates
```
Bash: 3. Bump ordering and reply counts
Sort board threads by most recent reply and maintain reply counters.
```bash 4. Tripcodes and session cookies
mkdir -p ~/nightshift-imageboard/{agents,tests,static/uploads,static/thumbs,templates} Add anonymous names, optional tripcodes, and lightweight poster identity.
cd ~/nightshift-imageboard
```
## 2. Add The Starter App 5. Moderation and report queue
Add reporting, report queue, dismiss actions, and post hiding.
Create `app.py`: Run only `TASK-001` first. Do not ask the model to implement uploads, tripcodes, or moderation until the previous tasks pass.
```python ## Validate And Run
from __future__ import annotations
from pathlib import Path
import sqlite3
from flask import Flask, abort, g, redirect, render_template_string, request, url_for
DATABASE = "imageboard.db"
def create_app(database: str | None = None) -> Flask:
app = Flask(__name__)
app.config["DATABASE"] = database or DATABASE
app.config["UPLOAD_DIR"] = Path("static/uploads")
app.config["THUMB_DIR"] = Path("static/thumbs")
app.secret_key = "dev-secret"
@app.before_request
def open_db() -> None:
g.db = sqlite3.connect(app.config["DATABASE"])
g.db.row_factory = sqlite3.Row
@app.teardown_request
def close_db(_exc: BaseException | None) -> None:
db = g.pop("db", None)
if db is not None:
db.close()
@app.get("/")
def index():
return redirect(url_for("board", name="test"))
@app.get("/board/<name>")
def board(name: str):
abort(501)
@app.get("/thread/<int:thread_id>")
def thread(thread_id: int):
abort(501)
return app
if __name__ == "__main__":
create_app().run(debug=True)
```
Create `schema.sql`:
```sql
-- NightShift will fill this in during TASK-001.
```
Create `models.py`:
```python
"""Database helpers for the imageboard tutorial."""
```
Create `tests/test_app.py`:
```python
from app import create_app
def test_index_redirects_to_test_board(tmp_path):
app = create_app(str(tmp_path / "test.db"))
client = app.test_client()
response = client.get("/")
assert response.status_code == 302
assert response.headers["Location"].endswith("/board/test")
```
## 3. Add NightShift Config
Create `nightshift.yaml`:
```yaml
project:
name: imageboard
root: .
task_file: tasks.md
artifact_dir: .nightshift
safety:
require_clean_worktree: false
scoped_paths:
- .
allowed_commands:
- python -m pytest -q
forbidden_commands:
- rm -rf
- git push
- curl | bash
experiment:
label: imageboard-real-model
prompt_variant: ollama-qwen25-coder-14b-v1
agents:
planner:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.2
system_prompt: agents/planner.md
implementer:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.1
system_prompt: agents/implementer.md
reviewer:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.1
system_prompt: agents/reviewer.md
pipeline:
max_task_retries: 3
continue_on_task_failure: false
stages:
- id: plan
type: agent
agent: planner
output: plan.md
- id: context
type: repo_context
output: context-pack.md
- id: implement
type: file_writer
agent: implementer
output: proposed.patch
- id: normalize
type: patch_normalizer
output: normalized.patch
- id: validate_patch
type: patch_validator
output: patch-validation.md
max_files: 8
max_lines: 700
on_fail: implement
- id: apply_patch
type: patch_apply
mode: apply
output: patch-apply-output.txt
on_fail: implement
- id: test
type: command
commands:
- python -m pytest -q
output: test-output.txt
shell: true
timeout_seconds: 20
on_fail: implement
- id: review
type: agent_review
agent: reviewer
on_fail: implement
output: review.md
- id: summarize
type: summarize
output: final-notes.md
```
## 4. Add Agent Prompts
Create `agents/planner.md`:
```markdown
You are the planning agent for NightShift.
Create a concise implementation plan for the current task.
If you need repository context before planning, output lookup requests exactly like this:
lookup_requests:
- tool: read_file
path: relative/path.py
- tool: grep
path: .
pattern: search_regex
After context is provided, write a short plan with:
- files to edit
- tests to add or update
- risks
Do not write code.
```
Create `agents/implementer.md`:
````markdown
You are the implementation agent for NightShift.
Output only complete file content blocks.
Use one fenced block per file with this exact opening form:
```file:relative/path.py
<complete file content>
```
Do not include explanations before or after the file blocks.
Include tests when needed.
Keep the change as small as possible.
Only edit files needed for the task.
````
Create `agents/reviewer.md`:
```markdown
You are the review agent for NightShift.
Review the task, plan, patch artifacts, test output, and final state.
Output exactly:
status: pass | fail | retry | escalate
reason: <short explanation>
next_stage: <optional stage id>
context_update: <compact useful note>
Use retry when the implementation is close but needs another patch.
Use fail when the patch is unsafe, unrelated, or clearly broken.
Use pass only when the acceptance criteria are satisfied.
```
## 5. Add The Task List
Create `tasks.md`:
```markdown
# Tasks
- [ ] TASK-001: Board and thread foundation
Description:
Implement the initial imageboard data model and read routes. Add a SQLite schema and model helpers for boards, threads, and replies. Implement `/board/<name>` and `/thread/<id>` routes with simple HTML responses. Include tests that initialize a temporary database, create board/thread/reply records, and verify both routes.
Acceptance Criteria:
- Defines SQLite tables for boards, threads, and replies
- Provides database initialization and model helper functions
- Implements `/board/<name>` route showing threads for that board
- Implements `/thread/<id>` route showing the thread and replies
- Includes route and model tests using a temporary database
- [ ] TASK-002: Image upload and thumbnails
Dependencies:
- TASK-001
Description:
Add image attachment support for new threads and replies. Store uploaded image metadata in SQLite, save uploaded files under `static/uploads`, and generate thumbnails under `static/thumbs`.
Acceptance Criteria:
- Accepts image uploads for threads and replies
- Stores image filename, thumbnail filename, MIME type, and size
- Generates thumbnails with Pillow
- Rejects unsupported or oversized files
- Includes upload and thumbnail tests
- [ ] TASK-003: Bump ordering and reply counts
Dependencies:
- TASK-002
Description:
Sort board threads by most recent bump. Creating a reply updates the thread bump timestamp and increments reply counters.
Acceptance Criteria:
- Board pages sort threads by latest bump time
- Replies increment thread reply count
- Reply creation updates bump timestamp
- Tests cover ordering and counters
- [ ] TASK-004: Tripcodes and session cookies
Dependencies:
- TASK-003
Description:
Add anonymous names, optional tripcodes, and a session cookie for lightweight poster identity.
Acceptance Criteria:
- Supports optional name and tripcode input
- Stores tripcode hashes without storing raw tripcode secrets
- Sets and reuses a poster session cookie
- Displays stable poster identity on posts
- Includes tripcode and session tests
- [ ] TASK-005: Moderation and report queue
Dependencies:
- TASK-004
Description:
Add post reporting and a simple moderation queue. Moderators can view reports, dismiss reports, and hide reported posts.
Acceptance Criteria:
- Users can report threads and replies
- Reports are stored with reason and timestamp
- Moderation queue lists open reports
- Moderation actions can dismiss reports or hide posts
- Includes moderation and report queue tests
```
## 6. Validate And Run
Validate the project: Validate the project:
```bash ```bash
python -m nightshift.cli validate --config nightshift.yaml nightshift validate
``` ```
Run only the first task: Run the first task:
```bash ```bash
python -m nightshift.cli run --config nightshift.yaml --task TASK-001 nightshift run --task TASK-001
``` ```
Start the dashboard: Start the dashboard:
```bash ```bash
python -m nightshift.cli web --config nightshift.yaml --host 127.0.0.1 --port 8765 nightshift web --host 127.0.0.1 --port 8765
``` ```
Open `http://127.0.0.1:8765/`. Open `http://127.0.0.1:8765/`.
## Notes On Scope ## What To Inspect
This is still a non-trivial first project. The advantage over a tiny interpreter is that failures are ordinary web-app failures: missing routes, schema mistakes, file handling, or tests. Those are easier to inspect in NightShift artifacts than parser recursion or tokenizer loops. Useful artifacts:
Keep the tasks sequential. Do not ask the model to implement uploads, tripcodes, or moderation before `TASK-001` is passing. ```text
.nightshift/runs/<run-id>/devlog.md
.nightshift/runs/<run-id>/run.log
.nightshift/runs/<run-id>/tasks/TASK-001/plan.md
.nightshift/runs/<run-id>/tasks/TASK-001/context-pack.md
.nightshift/runs/<run-id>/tasks/TASK-001/proposed.patch
.nightshift/runs/<run-id>/tasks/TASK-001/test-output.txt
.nightshift/runs/<run-id>/tasks/TASK-001/final-notes.md
```
The dashboard surfaces `devlog.md`, run status, logs, and links to finer-grained artifacts.
## Scope Note
This project is still not tiny. The advantage over a language interpreter is that the model works in familiar web-app territory and failures are easier to inspect. If `TASK-001` fails, read `devlog.md`, `test-output.txt`, and the implementer output before increasing retries or changing prompts.

4
lisp.py
View File

@ -1,4 +0,0 @@
"""Tiny Lisp quickstart target.
NightShift tasks in this example are intended to fill this module in.
"""

89
nightshift.yaml
View File

@ -1,89 +0,0 @@
project:
name: tiny-lisp
root: .
task_file: tasks.md
artifact_dir: .nightshift
safety:
require_clean_worktree: false
scoped_paths:
- .
allowed_commands:
- python -m unittest discover -v
forbidden_commands:
- rm -rf
- git push
- curl | bash
agents:
planner:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.2
system_prompt: agents/planner.md
implementer:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.1
system_prompt: agents/implementer.md
reviewer:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.1
system_prompt: agents/reviewer.md
pipeline:
max_task_retries: 3
continue_on_task_failure: false
stages:
- id: plan
type: agent
agent: planner
output: plan.md
- id: context
type: repo_context
output: context-pack.md
- id: implement
type: file_writer
agent: implementer
output: proposed.patch
- id: normalize
type: patch_normalizer
output: normalized.patch
- id: validate_patch
type: patch_validator
output: patch-validation.md
max_files: 4
max_lines: 400
on_fail: implement
- id: apply_patch
type: patch_apply
mode: apply
output: patch-apply-output.txt
on_fail: implement
- id: test
type: command
commands:
- python -m unittest discover -v
output: test-output.txt
shell: true
timeout_seconds: 60
on_fail: implement
- id: review
type: agent_review
agent: reviewer
on_fail: implement
output: review.md
- id: summarize
type: summarize
output: final-notes.md

8
nightshift/cli.py
View File

@ -30,6 +30,12 @@ def build_parser() -> argparse.ArgumentParser:
init_parser = subparsers.add_parser("init", help="Create starter NightShift files.") init_parser = subparsers.add_parser("init", help="Create starter NightShift files.")
init_parser.add_argument("--root", default=".", help="Directory to initialize.") init_parser.add_argument("--root", default=".", help="Directory to initialize.")
init_parser.add_argument(
"--template",
default="basic",
choices=("basic", "imageboard"),
help="Starter template to create.",
)
init_parser.add_argument("--force", action="store_true", help="Overwrite existing starter files.") init_parser.add_argument("--force", action="store_true", help="Overwrite existing starter files.")
validate_parser = subparsers.add_parser("validate", help="Validate nightshift.yaml.") validate_parser = subparsers.add_parser("validate", help="Validate nightshift.yaml.")
@ -57,7 +63,7 @@ def main(argv: list[str] | None = None) -> int:
try: try:
if args.command == "init": if args.command == "init":
written = init_project(Path(args.root), force=args.force) written = init_project(Path(args.root), force=args.force, template=args.template)
print("Created NightShift starter files:") print("Created NightShift starter files:")
for path in written: for path in written:
print(f"- {path}") print(f"- {path}")

29
nightshift/init.py
View File

@ -16,15 +16,38 @@ STARTER_FILES = {
"agents/reviewer.md": templates.REVIEWER_PROMPT, "agents/reviewer.md": templates.REVIEWER_PROMPT,
} }
IMAGEBOARD_FILES = {
"nightshift.yaml": templates.IMAGEBOARD_NIGHTSHIFT_YAML,
".nightshift/tasks.md": templates.IMAGEBOARD_TASKS_MD,
".nightshift/agents/planner.md": templates.REAL_MODEL_PLANNER_PROMPT,
".nightshift/agents/implementer.md": templates.REAL_MODEL_IMPLEMENTER_PROMPT,
".nightshift/agents/reviewer.md": templates.REAL_MODEL_REVIEWER_PROMPT,
"README.md": templates.IMAGEBOARD_README,
"src/imageboard/.gitkeep": "",
"tests/.gitkeep": "",
"templates/.gitkeep": "",
"static/uploads/.gitkeep": "",
"static/thumbs/.gitkeep": "",
}
def init_project(root: Path, force: bool = False) -> list[Path]: PROJECT_TEMPLATES = {
"basic": STARTER_FILES,
"imageboard": IMAGEBOARD_FILES,
}
def init_project(root: Path, force: bool = False, template: str = "basic") -> list[Path]:
"""Create starter NightShift files under root. """Create starter NightShift files under root.
Existing files are left untouched unless force is true. Existing files are left untouched unless force is true.
""" """
root = root.resolve() root = root.resolve()
targets = [root / relative for relative in STARTER_FILES] if template not in PROJECT_TEMPLATES:
known = ", ".join(sorted(PROJECT_TEMPLATES))
raise InitError(f"Unknown template '{template}'. Available templates: {known}")
files = PROJECT_TEMPLATES[template]
targets = [root / relative for relative in files]
existing = [path for path in targets if path.exists()] existing = [path for path in targets if path.exists()]
if existing and not force: if existing and not force:
formatted = ", ".join(str(path.relative_to(root)) for path in existing) formatted = ", ".join(str(path.relative_to(root)) for path in existing)
@ -34,7 +57,7 @@ def init_project(root: Path, force: bool = False) -> list[Path]:
) )
written: list[Path] = [] written: list[Path] = []
for relative, content in STARTER_FILES.items(): for relative, content in files.items():
path = root / relative path = root / relative
path.parent.mkdir(parents=True, exist_ok=True) path.parent.mkdir(parents=True, exist_ok=True)
path.write_text(content, encoding="utf-8") path.write_text(content, encoding="utf-8")

253
nightshift/templates.py
View File

@ -122,3 +122,256 @@ reason: <short explanation>
next_stage: <optional stage id> next_stage: <optional stage id>
context_update: <compact useful note> context_update: <compact useful note>
""" """
IMAGEBOARD_NIGHTSHIFT_YAML = """project:
name: imageboard
root: .
task_file: .nightshift/tasks.md
artifact_dir: .nightshift
safety:
require_clean_worktree: false
scoped_paths:
- src
- tests
- templates
- static
- schema.sql
- pyproject.toml
allowed_commands:
- python -m pytest -q
forbidden_commands:
- rm -rf
- git push
- curl | bash
experiment:
label: imageboard-real-model
prompt_variant: ollama-qwen25-coder-14b-v1
agents:
planner:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.2
system_prompt: .nightshift/agents/planner.md
implementer:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.1
system_prompt: .nightshift/agents/implementer.md
reviewer:
backend: ollama
model: qwen2.5-coder:14b
temperature: 0.1
system_prompt: .nightshift/agents/reviewer.md
pipeline:
max_task_retries: 3
continue_on_task_failure: false
stages:
- id: plan
type: agent
agent: planner
output: plan.md
- id: context
type: repo_context
output: context-pack.md
- id: implement
type: file_writer
agent: implementer
output: proposed.patch
- id: normalize
type: patch_normalizer
output: normalized.patch
- id: validate_patch
type: patch_validator
output: patch-validation.md
max_files: 10
max_lines: 900
on_fail: implement
- id: apply_patch
type: patch_apply
mode: apply
output: patch-apply-output.txt
on_fail: implement
- id: test
type: command
commands:
- python -m pytest -q
output: test-output.txt
shell: true
timeout_seconds: 20
on_fail: implement
- id: review
type: agent_review
agent: reviewer
on_fail: implement
output: review.md
- id: summarize
type: summarize
output: final-notes.md
"""
IMAGEBOARD_TASKS_MD = """# Tasks
- [ ] TASK-001: Board and thread foundation
Description:
Create the initial Flask imageboard application. Implement the board and thread data model, SQLite schema, model helpers, `/board/<name>` and `/thread/<id>` routes, and tests. Keep source code under `src/`, tests under `tests/`, HTML templates under `templates/`, and static files under `static/`.
Acceptance Criteria:
- Defines SQLite tables for boards, threads, and replies
- Provides database initialization and model helper functions
- Implements `/board/<name>` route showing threads for that board
- Implements `/thread/<id>` route showing the thread and replies
- Includes route and model tests using a temporary database
- [ ] TASK-002: Image upload and thumbnails
Dependencies:
- TASK-001
Description:
Add image attachment support for new threads and replies. Store uploaded image metadata in SQLite, save uploaded files under `static/uploads`, and generate thumbnails under `static/thumbs`.
Acceptance Criteria:
- Accepts image uploads for threads and replies
- Stores image filename, thumbnail filename, MIME type, and size
- Generates thumbnails with Pillow
- Rejects unsupported or oversized files
- Includes upload and thumbnail tests
- [ ] TASK-003: Bump ordering and reply counts
Dependencies:
- TASK-002
Description:
Sort board threads by most recent bump. Creating a reply updates the thread bump timestamp and increments reply counters.
Acceptance Criteria:
- Board pages sort threads by latest bump time
- Replies increment thread reply count
- Reply creation updates bump timestamp
- Tests cover ordering and counters
- [ ] TASK-004: Tripcodes and session cookies
Dependencies:
- TASK-003
Description:
Add anonymous names, optional tripcodes, and a session cookie for lightweight poster identity.
Acceptance Criteria:
- Supports optional name and tripcode input
- Stores tripcode hashes without storing raw tripcode secrets
- Sets and reuses a poster session cookie
- Displays stable poster identity on posts
- Includes tripcode and session tests
- [ ] TASK-005: Moderation and report queue
Dependencies:
- TASK-004
Description:
Add post reporting and a simple moderation queue. Moderators can view reports, dismiss reports, and hide reported posts.
Acceptance Criteria:
- Users can report threads and replies
- Reports are stored with reason and timestamp
- Moderation queue lists open reports
- Moderation actions can dismiss reports or hide posts
- Includes moderation and report queue tests
"""
REAL_MODEL_PLANNER_PROMPT = """You are the planning agent for NightShift.
Create a concise implementation plan for the current task.
If you need repository context before planning, output lookup requests exactly like this:
lookup_requests:
- tool: read_file
path: relative/path.py
- tool: grep
path: .
pattern: search_regex
After context is provided, write a short plan with:
- files to edit
- tests to add or update
- risks
Do not write code.
"""
REAL_MODEL_IMPLEMENTER_PROMPT = """You are the implementation agent for NightShift.
Output only complete file content blocks.
Use one fenced block per file with this exact opening form:
```file:relative/path.py
<complete file content>
```
Do not include explanations before or after the file blocks.
Include tests when needed.
Keep the change as small as possible.
Only edit files needed for the task.
"""
REAL_MODEL_REVIEWER_PROMPT = """You are the review agent for NightShift.
Review the task, plan, patch artifacts, test output, and final state.
Output exactly:
status: pass | fail | retry | escalate
reason: <short explanation>
next_stage: <optional stage id>
context_update: <compact useful note>
Use retry when the implementation is close but needs another patch.
Use fail when the patch is unsafe, unrelated, or clearly broken.
Use pass only when the acceptance criteria are satisfied.
"""
IMAGEBOARD_README = """# NightShift Imageboard Target
This project was created with:
```bash
nightshift init --template imageboard
```
NightShift control files live in `.nightshift/`. Target application code should live under `src/`, tests under `tests/`, templates under `templates/`, and uploaded/generated static files under `static/`.
Install target dependencies:
```bash
python -m pip install flask pillow pytest
```
Validate the project:
```bash
nightshift validate
```
Run the first task:
```bash
nightshift run --task TASK-001
```
"""

52
tasks.md
View File

@ -1,52 +0,0 @@
# Tasks
- [ ] TASK-001: Parse Lisp expressions
Description:
Implement tokenization and parsing for a tiny Lisp subset.
Acceptance Criteria:
- Parses numbers
- Parses symbols
- Parses nested lists
- Raises useful errors for unbalanced parentheses
- Includes unit tests
- [ ] TASK-002: Evaluate arithmetic forms
Dependencies:
- TASK-001
Description:
Evaluate parsed arithmetic expressions.
Acceptance Criteria:
- Supports `+`, `-`, `*`, and `/`
- Evaluates nested arithmetic
- Includes unit tests
- [ ] TASK-003: Add variables and definitions
Dependencies:
- TASK-002
Description:
Add an environment and support variable lookup and definitions.
Acceptance Criteria:
- Supports symbol lookup
- Supports `(define name value)`
- Keeps environment behavior tested
- [ ] TASK-004: Add conditionals
Dependencies:
- TASK-003
Description:
Implement simple truthiness and `if` expressions.
Acceptance Criteria:
- Supports `(if condition then else)`
- Handles false-like values consistently
- Includes tests for both branches

21
tests/test_init.py
View File

@ -38,6 +38,27 @@ class InitProjectTests(unittest.TestCase):
self.assertIn("TASK-001", (root / "tasks.md").read_text(encoding="utf-8")) self.assertIn("TASK-001", (root / "tasks.md").read_text(encoding="utf-8"))
def test_init_imageboard_template_creates_control_and_source_dirs(self) -> None:
with tempfile.TemporaryDirectory() as directory:
root = Path(directory)
written = init_project(root, template="imageboard")
self.assertIn(root / "nightshift.yaml", written)
self.assertTrue((root / ".nightshift" / "tasks.md").exists())
self.assertTrue((root / ".nightshift" / "agents" / "planner.md").exists())
self.assertTrue((root / "src" / "imageboard" / ".gitkeep").exists())
self.assertTrue((root / "tests" / ".gitkeep").exists())
self.assertIn(
"task_file: .nightshift/tasks.md",
(root / "nightshift.yaml").read_text(encoding="utf-8"),
)
def test_init_rejects_unknown_template(self) -> None:
with tempfile.TemporaryDirectory() as directory:
with self.assertRaisesRegex(InitError, "Unknown template"):
init_project(Path(directory), template="missing")
if __name__ == "__main__": if __name__ == "__main__":
unittest.main() unittest.main()