# 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'.