EPIC: Domain Model Correctness — Timezone-Aware Datetimes & Immutability (v3.2.0) #5656

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opened 2026-04-09 08:10:00 +00:00 by HAL9000 · 4 comments
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Background

Several domain model issues have been identified where the implementation deviates from the specification:

  1. Timezone-naive datetimes: Plan, Action, Session, SessionMessage, Actor, and Invariant domain models use timezone-naive datetime objects. The spec requires all timestamps to be timezone-aware (UTC).
  2. Session.append_message() creates SessionMessage with timezone-naive timestamps — a runtime bug in the session service.

These correctness issues affect data integrity and interoperability with external systems.

Child Issues

  • #5554 — UAT: Timezone-naive datetimes in Plan, Action, Session, SessionMessage, Actor, and Invariant domain models
  • #5557 — UAT: Session.append_message() creates SessionMessage with timezone-naive timestamp — runtime bug in session service

Definition of Done

  • All child issues are closed and merged
  • All domain model datetime fields use datetime with timezone=UTC
  • Session.append_message() produces timezone-aware timestamps
  • All nox stages pass (nox -e lint, nox -e typecheck, nox -e unit_tests, nox -e integration_tests)
  • Coverage >= 97%

Metadata

  • Milestone: v3.2.0
  • Branch Naming Convention: fix/m2/domain-model-datetime

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## Background Several domain model issues have been identified where the implementation deviates from the specification: 1. **Timezone-naive datetimes**: Plan, Action, Session, SessionMessage, Actor, and Invariant domain models use timezone-naive `datetime` objects. The spec requires all timestamps to be timezone-aware (UTC). 2. **Session.append_message()** creates `SessionMessage` with timezone-naive timestamps — a runtime bug in the session service. These correctness issues affect data integrity and interoperability with external systems. ## Child Issues - [ ] #5554 — UAT: Timezone-naive datetimes in Plan, Action, Session, SessionMessage, Actor, and Invariant domain models - [ ] #5557 — UAT: Session.append_message() creates SessionMessage with timezone-naive timestamp — runtime bug in session service ## Definition of Done - [ ] All child issues are closed and merged - [ ] All domain model datetime fields use `datetime` with `timezone=UTC` - [ ] `Session.append_message()` produces timezone-aware timestamps - [ ] All nox stages pass (`nox -e lint`, `nox -e typecheck`, `nox -e unit_tests`, `nox -e integration_tests`) - [ ] Coverage >= 97% ## Metadata - **Milestone**: v3.2.0 - **Branch Naming Convention**: `fix/m2/domain-model-datetime` --- **Automated by CleverAgents Bot** Supervisor: Epic Planning | Agent: epic-planner
HAL9000 added this to the v3.2.0 milestone 2026-04-09 08:16:15 +00:00
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Label compliance fix applied:

  • Added missing labels and/or milestone to bring issue into compliance with CONTRIBUTING.md

Automated by CleverAgents Bot
Supervisor: Backlog Grooming | Agent: backlog-groomer

Label compliance fix applied: - Added missing labels and/or milestone to bring issue into compliance with CONTRIBUTING.md --- **Automated by CleverAgents Bot** Supervisor: Backlog Grooming | Agent: backlog-groomer
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Owner

Label compliance fix applied:

  • Added missing labels: Priority/Medium, State/Unverified
  • Reason: Epic issue was missing State and Priority labels.

Automated by CleverAgents Bot
Supervisor: Backlog Grooming | Agent: backlog-groomer

Label compliance fix applied: - Added missing labels: `Priority/Medium`, `State/Unverified` - Reason: Epic issue was missing State and Priority labels. --- **Automated by CleverAgents Bot** Supervisor: Backlog Grooming | Agent: backlog-groomer
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State corrected by project owner: State/UnverifiedState/Verified

This Epic was incorrectly labeled State/Unverified by the backlog groomer. It already has MoSCoW/Must have, Points/21, and is assigned to milestone v3.2.0 — it is clearly a verified, planned Epic. The State/Unverified label was added in error.

The Epic covers domain model correctness (timezone-aware datetimes and immutability) which is a Must Have for v3.2.0 milestone delivery.


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner

State corrected by project owner: `State/Unverified` → `State/Verified` This Epic was incorrectly labeled `State/Unverified` by the backlog groomer. It already has `MoSCoW/Must have`, `Points/21`, and is assigned to milestone v3.2.0 — it is clearly a verified, planned Epic. The `State/Unverified` label was added in error. The Epic covers domain model correctness (timezone-aware datetimes and immutability) which is a Must Have for v3.2.0 milestone delivery. --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner
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Owner

Epic Planning Update — Cycle 7

Added 1 new child issue to bring this epic to 5+ children:

  • #5554 — UAT: Timezone-naive datetimes in Plan, Action, Session, SessionMessage, Actor, and Invariant domain models
  • #5557 — UAT: Session.append_message() creates SessionMessage with timezone-naive timestamp
  • #5852 — UAT: Session.linked_plans with phase/state not persisted
  • #5859 — UAT: SessionRepository.update() does not persist name field
  • #7553 — fix(domain): enforce immutability on Plan and Action domain model fields after construction

Total children: 5


Automated by CleverAgents Bot
Supervisor: Epic Planner | Agent: epic-planning-pool-supervisor

## Epic Planning Update — Cycle 7 Added 1 new child issue to bring this epic to 5+ children: - [ ] #5554 — UAT: Timezone-naive datetimes in Plan, Action, Session, SessionMessage, Actor, and Invariant domain models - [ ] #5557 — UAT: Session.append_message() creates SessionMessage with timezone-naive timestamp - [ ] #5852 — UAT: Session.linked_plans with phase/state not persisted - [ ] #5859 — UAT: SessionRepository.update() does not persist name field - [ ] #7553 — fix(domain): enforce immutability on Plan and Action domain model fields after construction **Total children**: 5 ✅ --- **Automated by CleverAgents Bot** Supervisor: Epic Planner | Agent: epic-planning-pool-supervisor
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Reference
cleveragents/cleveragents-core#5656
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