Clean up some files and add a new tutorial

.nightshift/project-context-chart.md

@@ -1,84 +0,0 @@
-# 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

.nightshift/project-context.md

@@ -1,2 +0,0 @@
-# Project Context
-

.nightshift/runs/20260517T212359.709956Z/config.snapshot.yaml

@@ -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: 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

.nightshift/runs/20260517T212359.709956Z/prompts/implementer.md

@@ -1,9 +0,0 @@
-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.

.nightshift/runs/20260517T212359.709956Z/prompts/planner.md

@@ -1,19 +0,0 @@
-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.

.nightshift/runs/20260517T212359.709956Z/prompts/reviewer.md

@@ -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.

.nightshift/runs/20260517T212359.709956Z/run-metadata.md

@@ -1,34 +0,0 @@
-# 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

.nightshift/runs/20260517T212359.709956Z/run-summary.md

@@ -1,17 +0,0 @@
-# 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`

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-1.patch

@@ -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()

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-2.patch

@@ -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()

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/applied-3.patch

@@ -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)")

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/context-out.md

@@ -1,88 +0,0 @@
-# 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

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/context-pack.md

@@ -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
-```

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/context.md

@@ -1,16 +0,0 @@
-# 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

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/diff.patch

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

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/files-inspected.md

@@ -1,61 +0,0 @@
-# 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.
-```

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/final-notes.md

@@ -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`

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/git-status-after-patch-apply.txt

@@ -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
-```

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

@@ -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
-```

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

@@ -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
-```

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

@@ -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
-```

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

@@ -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

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

@@ -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()

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/normalized-2.patch

@@ -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()

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

@@ -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)")

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

@@ -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()

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

@@ -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
-```

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

@@ -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
-```

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/patch-apply-output-3.txt

@@ -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
-```

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/patch-validation-1.md

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

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/patch-validation-2.md

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

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

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

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/patch-validation.md

@@ -1,4 +0,0 @@
-# Patch Validation
-
-Status: fail
-Reason: Patch validation failed: patch creates existing file `lisp.py`.

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/plan.md

@@ -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.
-```

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/proposed.patch

@@ -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.
-```

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

@@ -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()

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

@@ -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()

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-3.patch

@@ -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)")

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-1.md

@@ -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'.

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-2.md

@@ -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'.

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/repair-summary-3.md

@@ -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'.

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/stage-results.md

@@ -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

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/task-completion.md

@@ -1,5 +0,0 @@
-# Task Completion
-
-Task: `TASK-001`
-Pipeline status: failed
-Marked complete: false

.nightshift/runs/20260517T212359.709956Z/tasks/TASK-001/task.md

@@ -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

README.md

@@ -113,6 +113,12 @@ nightshift status
 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:
 
 ```bash

examples/quickstart-lisp/agents/fake_code_writer.py

@@ -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()

examples/quickstart-lisp/agents/fake_planner.py

@@ -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")

examples/quickstart-lisp/agents/implementer.md

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

examples/quickstart-lisp/agents/planner.md

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

examples/quickstart-lisp/agents/reviewer.md

@@ -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>

examples/quickstart-lisp/lisp.py

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

examples/quickstart-lisp/nightshift.yaml

@@ -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

examples/quickstart-lisp/tasks.md

@@ -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

examples/quickstart-lisp/tests/__init__.py

@@ -1 +0,0 @@
-"""Quickstart Lisp test suite."""

examples/quickstart-lisp/tests/test_lisp.py

@@ -1,10 +0,0 @@
-import unittest
-
-
-class SmokeTests(unittest.TestCase):
-    def test_smoke(self):
-        self.assertTrue(True)
-
-
-if __name__ == "__main__":
-    unittest.main()

examples/tutorial/01-imageboard/README.md

@@ -1,22 +1,40 @@
 # 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.
-2. Image upload and thumbnail generation.
-3. Bump ordering and reply counters.
-4. Tripcodes and session cookies.
-5. Moderation and report queue.
+The template creates:
 
-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
 
@@ -26,7 +44,7 @@ Install NightShift from this repository:
 python -m pip install -e .
 ```
 
-Install runtime dependencies for the target project:
+Install target project dependencies:
 
 ```bash
 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`.
 
-## 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
-$TargetProject = "$HOME\Documents\nightshift-imageboard"
-New-Item -ItemType Directory -Force $TargetProject
-Set-Location $TargetProject
-New-Item -ItemType Directory -Force agents, tests, static\uploads, static\thumbs, templates
-```
+2. Image upload and thumbnails
+   Add image attachments, metadata, upload storage under `static/uploads`, and thumbnails under `static/thumbs`.
 
-Bash:
+3. Bump ordering and reply counts
+   Sort board threads by most recent reply and maintain reply counters.
 
-```bash
-mkdir -p ~/nightshift-imageboard/{agents,tests,static/uploads,static/thumbs,templates}
-cd ~/nightshift-imageboard
-```
+4. Tripcodes and session cookies
+   Add anonymous names, optional tripcodes, and lightweight poster identity.
 
-## 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
-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 And Run
 
 Validate the project:
 
 ```bash
-python -m nightshift.cli validate --config nightshift.yaml
+nightshift validate
 ```
 
-Run only the first task:
+Run the first task:
 
 ```bash
-python -m nightshift.cli run --config nightshift.yaml --task TASK-001
+nightshift run --task TASK-001
 ```
 
 Start the dashboard:
 
 ```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/`.
 
-## 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.

lisp.py

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

nightshift.yaml

@@ -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

nightshift/cli.py

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

nightshift/init.py

@@ -16,15 +16,38 @@ STARTER_FILES = {
     "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.
 
     Existing files are left untouched unless force is true.
     """
 
     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()]
     if existing and not force:
         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] = []
-    for relative, content in STARTER_FILES.items():
+    for relative, content in files.items():
         path = root / relative
         path.parent.mkdir(parents=True, exist_ok=True)
         path.write_text(content, encoding="utf-8")

nightshift/templates.py

@@ -122,3 +122,256 @@ reason: <short explanation>
 next_stage: <optional stage id>
 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
+```
+"""

tasks.md

@@ -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

tests/test_init.py

@@ -38,6 +38,27 @@ class InitProjectTests(unittest.TestCase):
 
             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__":
     unittest.main()