GPT-5.6 Sol (Codex) on Fix two invoicing bugs

Passed in 34s. Attempt 3. Run 20260904T112925Z-gpt-5-6-sol-fix-the-bug-3.

Task

Fix the invoicing package

The small Python package in invoicing/ has two bugs. Run the tests in tests/, find the causes, and fix the package code.

The required behavior is round-half-up at the half-cent boundary and a due date that preserves the timezone of an aware issue time. Do not change anything under tests/.

There is no separate report to write. The output is the corrected invoicing/ package in the current folder, with this command passing:

python -m pytest -q tests

Command

codex exec --skip-git-repo-check --dangerously-bypass-approvals-and-sandbox -m gpt-5.6-sol -c model_reasoning_effort=high --output-last-message /tmp/atris-bench/20260904T112925Z-gpt-5-6-sol-fix-the-bug-3/last-message.txt 'You are working in the current folder. Do the task in TASK.md and write the outputs to the exact paths it names.
Do not ask questions. When done, stop.

# Fix the invoicing package

The small Python package in `invoicing/` has two bugs. Run the tests in `tests/`, find the
causes, and fix the package code.

The required behavior is round-half-up at the half-cent boundary and a due date that preserves
the timezone of an aware issue time. Do not change anything under `tests/`.

There is no separate report to write. The output is the corrected `invoicing/` package in the
current folder, with this command passing:

` ` `sh
python -m pytest -q tests
` ` `'

Output

Fixed [invoicing/invoice.py](/private/tmp/atris-bench/20260904T112925Z-gpt-5-6-sol-fix-the-bug-3/work/invoicing/invoice.py): round-half-up money and timezone-preserving due dates.

`python -m pytest -q tests` — 5 passed.


[stderr]
Reading additional input from stdin...
OpenAI Codex v0.153.0
--------
workdir: /private/tmp/atris-bench/20260904T112925Z-gpt-5-6-sol-fix-the-bug-3/work
model: gpt-5.6-sol
provider: openai
approval: never
sandbox: danger-full-access
reasoning effort: high
reasoning summaries: none
session id: 01a06c2e-4178-73c2-9ffa-14aec2d22ba2
--------
user
You are working in the current folder. Do the task in TASK.md and write the outputs to the exact paths it names.
Do not ask questions. When done, stop.

# Fix the invoicing package

The small Python package in `invoicing/` has two bugs. Run the tests in `tests/`, find the
causes, and fix the package code.

The required behavior is round-half-up at the half-cent boundary and a due date that preserves
the timezone of an aware issue time. Do not change anything under `tests/`.

There is no separate report to write. The output is the corrected `invoicing/` package in the
current folder, with this command passing:

` ` `sh
python -m pytest -q tests
` ` `
codex
I’m using the Atris build workflow to inspect the task, fix only the package code, and verify the exact pytest command.
exec
/bin/zsh -lc "sed -n '1,240p' /Users/keshavrao/.codex/skills/atris-build/SKILL.md && sed -n '1,240p' /Users/keshavrao/.codex/skills/keshav-comms/SKILL.md && printf '\\n--- TASK.md ---\\n' && sed -n '1,240p' TASK.md" in /private/tmp/atris-bench/20260904T112925Z-gpt-5-6-sol-fix-the-bug-3/work
 succeeded in 0ms:
---
name: atris-build
description: Build-phase execution policy for repos using the Atris workflow. Use for focused implementation work after plan is set (frontend/backend/task execution). Use when user asks for coding, refactors, UI tweaks, or explicit "build" context.
---

# Atris Build Skill

## Scope
- Use in repos where `atris/` is present.
- Apply when the user asks for implementation work: UI changes, feature edits, bug fixes, or task execution.
- If intent is unclear, ask one clarifying question before touching files.

## Operating rules
- Run only the build work approved by the user.
- Keep edits surgical and minimal.
- Avoid broad refactors unless explicitly requested.
- Do not run tests/validation unless explicitly asked.
- Do not run destructive commands or revert unrelated edits.

## Process
1. Confirm target behavior and acceptance criteria.
2. Map required files from `atris/MAP.md`.
3. Implement in small chunks with no speculative side work.
4. Preserve existing structure/patterns in the touched domain (`frontend`, `backend`, etc.).
5. Report exact file paths changed and why.

## Frontend notes
- Preserve established design direction in existing files.
- Prefer minimal DOM/CSS motion changes over full redesigns.
- Keep mobile-first space conservation in mind before adding new chrome.

## Closure
- Summarize changes and remaining open questions.
- If work is incomplete, capture next explicit step.
---
name: keshav-comms
description: Keshav's default reply style for speed-reading in a small terminal pane — one idea per beat, hard line cap, no scroll. Use on every conversational reply unless the user asks for depth. Triggers on every chat, brainstorm, status, and handoff.
---

# keshav-comms

House style for Keshav. Goal: **never scroll** in Ghostty/split panes.

## Hard limits

- **Stream (default):** max **4 lines** total (blank lines count).
- **Batch / handoff:** max **6 lines** total.
- **One idea per beat.** Prefer **1 line** when possible.
- **Blank line between beats** when using 2+ lines.
- If the UI shows truncated output, the reply was too long — shorten next message.

## Format

- Plain English. PM-smart, not jargon-first.
- **No** headers, bullets, numbered lists, tables, or preamble.
- **No** agreement reflex ("great question", "you're right").
- Start with the answer.
- **Recommend one path** — do not enumerate options unless asked.
- Code blocks, diffs, and file paths stay literal when needed.

## Phases

| Phase | When | Output |
|-------|------|--------|
| **Stream** | Default | ≤4 lines, one beat at a time across turns |
| **Batch** | User says `batch` or `compile` | Stack prior beats into one block, ≤6 lines |
| **Handoff** | User says `handoff` | ≤6 lines: summary + what changed + risk + next |

## Signal words

- `go` — execute work; progress replies stay in stream mode.
- `raise` — continue the active thread goal without retyping; Obelisk auto-queues the next turn when the goal is still open.
- `loop` / **Overnight** — toggle overnight loop in the goal bar; mission → goal → goal until mission has no next goal, GOAL_COMPLETE, or a real blocker.
- `batch` — compile conversation so far.
- `handoff` — compile for another human or agent.

## Example (stream)

User: is the hook firing on boot a problem?

Yes — noise, not failure.

It expects a forgepilot log that was never written today.

Want disable hook or write the log?

## When NOT to use

- User explicitly asks for a long writeup, doc, or deep dive.
- Multi-file plans where structure aids comprehension (still cap sections).

--- TASK.md ---
# Fix the invoicing package

The small Python package in `invoicing/` has two bugs. Run the tests in `tests/`, find the
causes, and fix the package code.

The required behavior is round-half-up at the half-cent boundary and a due date that preserves
the timezone of an aware issue time. Do not change anything under `tests/`.

There is no separate report to write. The output is the corrected `invoicing/` package in the
current folder, with this command passing:

` ` `sh
python -m pytest -q tests
` ` `

exec
/bin/zsh -lc "pwd && rg --files -g '"'!*__pycache__*'"' -g '"'!*.pyc'"' && git status --short && python -m pytest -q tests" in /private/tmp/atris-bench/20260904T112925Z-gpt-5-6-sol-fix-the-bug-3/work
 exited 128 in 0ms:
/private/tmp/atris-bench/20260904T112925Z-gpt-5-6-sol-fix-the-bug-3/work
invoicing/invoice.py
invoicing/__init__.py
TASK.md
tests/test_invoice.py
fatal: not a git repository (or any of the parent directories): .git

codex
The folder has no Atris map or Git metadata, so the workflow reduces to a surgical package edit. I’m running the failing tests now and tracing both behaviors.
exec
/bin/zsh -lc "python -m pytest -q tests; sed -n '1,260p' invoicing/invoice.py; sed -n '1,220p' invoicing/__init__.py; sed -n '1,300p' tests/test_invoice.py" in /private/tmp/atris-bench/20260904T112925Z-gpt-5-6-sol-fix-the-bug-3/work
 succeeded in 1315ms:
/Users/keshavrao/.pyenv/versions/3.12.0/lib/python3.12/site-packages/eval_protocol/models.py:1156: PydanticDeprecatedSince20: Support for class-based `config` is deprecated, use ConfigDict instead. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.12/migration/
  class TaskDefinitionModel(BaseModel):
.F.F.                                                                    [100%]
=================================== FAILURES ===================================
_________________ test_money_uses_round_half_up_for_half_cent __________________

    def test_money_uses_round_half_up_for_half_cent():
>       assert money(Decimal("10.005")) == Decimal("10.01")
E       AssertionError: assert Decimal('10.00') == Decimal('10.01')
E        +  where Decimal('10.00') = money(Decimal('10.005'))
E        +    where Decimal('10.005') = Decimal('10.005')
E        +  and   Decimal('10.01') = Decimal('10.01')

tests/test_invoice.py:12: AssertionError
___________________ test_due_at_preserves_an_aware_timezone ____________________

    def test_due_at_preserves_an_aware_timezone():
        pacific = timezone(timedelta(hours=-7))
        issued = datetime(2026, 9, 4, 9, 30, tzinfo=pacific)
>       assert due_at(issued, 30) == datetime(2026, 10, 4, 17, 0, tzinfo=pacific)
E       assert datetime.datetime(2026, 10, 4, 17, 0) == datetime.datetime(2026, 10, 4, 17, 0, tzinfo=datetime.timezone(datetime.timedelta(days=-1, seconds=61200)))
E        +  where datetime.datetime(2026, 10, 4, 17, 0) = due_at(datetime.datetime(2026, 9, 4, 9, 30, tzinfo=datetime.timezone(datetime.timedelta(days=-1, seconds=61200))), 30)
E        +  and   datetime.datetime(2026, 10, 4, 17, 0, tzinfo=datetime.timezone(datetime.timedelta(days=-1, seconds=61200))) = datetime(2026, 10, 4, 17, 0, tzinfo=datetime.timezone(datetime.timedelta(days=-1, seconds=61200)))

tests/test_invoice.py:23: AssertionError
=========================== short test summary info ============================
FAILED tests/test_invoice.py::test_money_uses_round_half_up_for_half_cent - A...
FAILED tests/test_invoice.py::test_due_at_preserves_an_aware_timezone - asser...
2 failed, 3 passed in 0.05s
from __future__ import annotations

from dataclasses import dataclass
from datetime import datetime, time, timedelta
from decimal import Decimal


def money(value: Decimal | str) -> Decimal:
    """Return a value rounded to cents."""
    return Decimal(value).quantize(Decimal("0.01"))


def due_at(issued_at: datetime, terms_days: int) -> datetime:
    """Return 5 PM on the due date."""
    due_date = issued_at.date() + timedelta(days=terms_days)
    return datetime.combine(due_date, time(17, 0))


@dataclass(frozen=True)
class Invoice:
    subtotal: Decimal
    tax_rate: Decimal

    @property
    def total(self) -> Decimal:
        return money(self.subtotal * (Decimal("1") + self.tax_rate))
from .invoice import Invoice, due_at, money

__all__ = ["Invoice", "due_at", "money"]
from datetime import datetime, timedelta, timezone
from decimal import Decimal

from invoicing import Invoice, due_at, money


def test_money_rounds_an_ordinary_fraction():
    assert money(Decimal("12.346")) == Decimal("12.35")


def test_money_uses_round_half_up_for_half_cent():
    assert money(Decimal("10.005")) == Decimal("10.01")


def test_invoice_total_is_money():
    invoice = Invoice(subtotal=Decimal("100.00"), tax_rate=Decimal("0.0825"))
    assert invoice.total == Decimal("108.25")


def test_due_at_preserves_an_aware_timezone():
    pacific = timezone(timedelta(hours=-7))
    issued = datetime(2026, 9, 4, 9, 30, tzinfo=pacific)
    assert due_at(issued, 30) == datetime(2026, 10, 4, 17, 0, tzinfo=pacific)


def test_due_at_stays_naive_for_a_naive_issue_time():
    issued = datetime(2026, 9, 4, 9, 30)
    assert due_at(issued, 7) == datetime(2026, 9, 11, 17, 0)

apply patch
patch: completed
/private/tmp/atris-bench/20260904T112925Z-gpt-5-6-sol-fix-the-bug-3/work/invoicing/invoice.py
diff --git a/invoicing/invoice.py b/invoicing/invoice.py
index b1e83d34fc3dd6d6cede2082d7547a0c73de5a17..8431e9c0a8e317e2c981ff4cad21489ce60e417f
--- a/invoicing/invoice.py
+++ b/invoicing/invoice.py
@@ -2,18 +2,18 @@
 
 from dataclasses import dataclass
 from datetime import datetime, time, timedelta
-from decimal import Decimal
+from decimal import ROUND_HALF_UP, Decimal
 
 
 def money(value: Decimal | str) -> Decimal:
     """Return a value rounded to cents."""
-    return Decimal(value).quantize(Decimal("0.01"))
+    return Decimal(value).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)
 
 
 def due_at(issued_at: datetime, terms_days: int) -> datetime:
     """Return 5 PM on the due date."""
     due_date = issued_at.date() + timedelta(days=terms_days)
-    return datetime.combine(due_date, time(17, 0))
+    return datetime.combine(due_date, time(17, 0), tzinfo=issued_at.tzinfo)
 
 
 @dataclass(frozen=True)

diff --git a/invoicing/invoice.py b/invoicing/invoice.py
index b1e83d34fc3dd6d6cede2082d7547a0c73de5a17..8431e9c0a8e317e2c981ff4cad21489ce60e417f
--- a/invoicing/invoice.py
+++ b/invoicing/invoice.py
@@ -2,18 +2,18 @@
 
 from dataclasses import dataclass
 from datetime import datetime, time, timedelta
-from decimal import Decimal
+from decimal import ROUND_HALF_UP, Decimal
 
 
 def money(value: Decimal | str) -> Decimal:
     """Return a value rounded to cents."""
-    return Decimal(value).quantize(Decimal("0.01"))
+    return Decimal(value).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)
 
 
 def due_at(issued_at: datetime, terms_days: int) -> datetime:
     """Return 5 PM on the due date."""
     due_date = issued_at.date() + timedelta(days=terms_days)
-    return datetime.combine(due_date, time(17, 0))
+    return datetime.combine(due_date, time(17, 0), tzinfo=issued_at.tzinfo)
 
 
 @dataclass(frozen=True)

exec
/bin/zsh -lc 'python -m pytest -q tests' in /private/tmp/atris-bench/20260904T112925Z-gpt-5-6-sol-fix-the-bug-3/work
 succeeded in 1341ms:
/Users/keshavrao/.pyenv/versions/3.12.0/lib/python3.12/site-packages/eval_protocol/models.py:1156: PydanticDeprecatedSince20: Support for class-based `config` is deprecated, use ConfigDict instead. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.12/migration/
  class TaskDefinitionModel(BaseModel):
.....                                                                    [100%]
5 passed in 0.01s

diff --git a/invoicing/invoice.py b/invoicing/invoice.py
index b1e83d34fc3dd6d6cede2082d7547a0c73de5a17..8431e9c0a8e317e2c981ff4cad21489ce60e417f
--- a/invoicing/invoice.py
+++ b/invoicing/invoice.py
@@ -2,18 +2,18 @@
 
 from dataclasses import dataclass
 from datetime import datetime, time, timedelta
-from decimal import Decimal
+from decimal import ROUND_HALF_UP, Decimal
 
 
 def money(value: Decimal | str) -> Decimal:
     """Return a value rounded to cents."""
-    return Decimal(value).quantize(Decimal("0.01"))
+    return Decimal(value).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)
 
 
 def due_at(issued_at: datetime, terms_days: int) -> datetime:
     """Return 5 PM on the due date."""
     due_date = issued_at.date() + timedelta(days=terms_days)
-    return datetime.combine(due_date, time(17, 0))
+    return datetime.combine(due_date, time(17, 0), tzinfo=issued_at.tzinfo)
 
 
 @dataclass(frozen=True)

codex
Fixed [invoicing/invoice.py](/private/tmp/atris-bench/20260904T112925Z-gpt-5-6-sol-fix-the-bug-3/work/invoicing/invoice.py): round-half-up money and timezone-preserving due dates.

`python -m pytest -q tests` — 5 passed.
diff --git a/invoicing/invoice.py b/invoicing/invoice.py
index b1e83d34fc3dd6d6cede2082d7547a0c73de5a17..8431e9c0a8e317e2c981ff4cad21489ce60e417f
--- a/invoicing/invoice.py
+++ b/invoicing/invoice.py
@@ -2,18 +2,18 @@
 
 from dataclasses import dataclass
 from datetime import datetime, time, timedelta
-from decimal import Decimal
+from decimal import ROUND_HALF_UP, Decimal
 
 
 def money(value: Decimal | str) -> Decimal:
     """Return a value rounded to cents."""
-    return Decimal(value).quantize(Decimal("0.01"))
+    return Decimal(value).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)
 
 
 def due_at(issued_at: datetime, terms_days: int) -> datetime:
     """Return 5 PM on the due date."""
     due_date = issued_at.date() + timedelta(days=terms_days)
-    return datetime.combine(due_date, time(17, 0))
+    return datetime.combine(due_date, time(17, 0), tzinfo=issued_at.tzinfo)
 
 
 @dataclass(frozen=True)

tokens used
8,028


[final message]
Fixed [invoicing/invoice.py](/private/tmp/atris-bench/20260904T112925Z-gpt-5-6-sol-fix-the-bug-3/work/invoicing/invoice.py): round-half-up money and timezone-preserving due dates.

`python -m pytest -q tests` — 5 passed.

Files produced

.pytest_cache/.gitignore

# Created by pytest automatically.
*

.pytest_cache/CACHEDIR.TAG

Signature: 8a477f597d28d172789f06886806bc55
# This file is a cache directory tag created by pytest.
# For information about cache directory tags, see:
#	https://bford.info/cachedir/spec.html

.pytest_cache/README.md

# pytest cache directory #

This directory contains data from the pytest's cache plugin,
which provides the `--lf` and `--ff` options, as well as the `cache` fixture.

**Do not** commit this to version control.

See [the docs](https://docs.pytest.org/en/stable/how-to/cache.html) for more information.

.pytest_cache/v/cache/lastfailed

{}

.pytest_cache/v/cache/nodeids

[
  "tests/test_invoice.py::test_due_at_preserves_an_aware_timezone",
  "tests/test_invoice.py::test_due_at_stays_naive_for_a_naive_issue_time",
  "tests/test_invoice.py::test_invoice_total_is_money",
  "tests/test_invoice.py::test_money_rounds_an_ordinary_fraction",
  "tests/test_invoice.py::test_money_uses_round_half_up_for_half_cent"
]

invoicing/pycache/init.cpython-312.pyc

[binary file, 291 bytes]

invoicing/pycache/invoice.cpython-312.pyc

[binary file, 1797 bytes]

invoicing/invoice.py

from __future__ import annotations

from dataclasses import dataclass
from datetime import datetime, time, timedelta
from decimal import ROUND_HALF_UP, Decimal


def money(value: Decimal | str) -> Decimal:
    """Return a value rounded to cents."""
    return Decimal(value).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)


def due_at(issued_at: datetime, terms_days: int) -> datetime:
    """Return 5 PM on the due date."""
    due_date = issued_at.date() + timedelta(days=terms_days)
    return datetime.combine(due_date, time(17, 0), tzinfo=issued_at.tzinfo)


@dataclass(frozen=True)
class Invoice:
    subtotal: Decimal
    tax_rate: Decimal

    @property
    def total(self) -> Decimal:
        return money(self.subtotal * (Decimal("1") + self.tax_rate))

tests/pycache/test_invoice.cpython-312-pytest-9.0.3.pyc

[binary file, 8723 bytes]

Checker

{"passed": true, "score": 1.0, "notes": "tests unchanged: True; pytest: 5 passed in 0.00s"}

Judge

Not used for this task.