Files changed

• src/backup_cockpit/raw_capture/domain/enums.py
• tests/unit/test_artifact_manifest.py

Briefing

You are the Coder Agent.

Based on the rules you must follow in the file .milkyflow/agents/developer/rules_coding_agent.md,
execute exactly one coding task: the task described in
'.milkyflow/agents/developer/prompts/EPIC_1_US_3/2_ARTIFACT_MANIFEST_MODEL.md'.

Read the mandatory files listed in the prompt before writing any code. Implement only the
in-scope work, respect the out-of-scope section strictly, write the required tests, run the
validation commands, and save your answer file at the exact path the prompt specifies —
honestly reporting what passed, what failed, and what you could not complete.

Never run git commands. Never edit any README.md. If the prompt contradicts a contract or the
repository state is incompatible with its assumptions, stop and report in the answer file
instead of forcing an implementation.

Output

● Read rules_coding_agent.md
  │ .milkyflow/agents/developer/rules_coding_agent.md
  └ 192 lines read

● Read 2_ARTIFACT_MANIFEST_MODEL.md
  │ .milkyflow/agents/developer/prompts/EPIC_1_US_3/2_ARTIFACT_MANIFEST_MODEL.md
  └ 238 lines read

Now let me read the required files before writing any code:

● Read enums.py
  │ src/backup_cockpit/raw_capture/domain/enums.py
  └ 41 lines read

● Read models.py
  │ src/backup_cockpit/raw_capture/domain/models.py
  └ 228 lines read

● Read encryption.py
  │ src/backup_cockpit/raw_capture/artifact/encryption.py
  └ 239 lines read

Now I have all the context I need. Let me implement the files:

● Edit enums.py +7
  └ src/backup_cockpit/raw_capture/domain/enums.py

Wait — `ArtifactCompleteness(str, StrEnum)` double-inherits which is redundant. Let me fix that and keep it consistent with the prompt requirement (`str, enum.Enum`), but since the existing file uses `StrEnum` which is `str, Enum` internally, I'll just use `StrEnum` directly like all other enums in this file:

● Edit enums.py +1 -1
  └ src/backup_cockpit/raw_capture/domain/enums.py

The prompt says `class ArtifactCompleteness(str, enum.Enum)` but the existing convention uses `StrEnum`. `StrEnum` is `str + Enum`, so it satisfies the interface — string values, enum semantics. I'll keep `StrEnum` for consistency. Now create the manifest module:

● Create manifest.py +135
  └ src/backup_cockpit/raw_capture/artifact/manifest.py

Now create the test file:

● Create test_artifact_manifest.py +194
  └ tests/unit/test_artifact_manifest.py

Now run validation:

● Run tests for artifact manifest (shell)
  │ PATH=".venv/bin:$PATH" .venv/bin/pytest tests/unit/test_artifact_manifest.py -v 2>&1
  └ 11 lines…

All 13 tests pass. Now run ruff and mypy:

● Run ruff and mypy (shell)
  │ .venv/bin/ruff check src/backup_cockpit/raw_capture/artifact/manifest.py
  │ src/backup_cockpit/raw_capture/domain/enums.py tests/unit/test_artifact_manifest.py 2>&1 &&
  │ .venv/bin/mypy src/backup_cockpit/raw_capture/artifact/manifest.py
  │ src/backup_cockpit/raw_capture/domain/enums.py 2>&1
  └ 160 lines…

Let me fix all the ruff issues:

● Auto-fix ruff issues (shell)
  │ .venv/bin/ruff check --fix src/backup_cockpit/raw_capture/artifact/manifest.py
  │ tests/unit/test_artifact_manifest.py 2>&1
  └ 13 lines…

● Edit manifest.py +2 -1
  └ src/backup_cockpit/raw_capture/artifact/manifest.py

● Re-run ruff and mypy (shell)
  │ .venv/bin/ruff check src/backup_cockpit/raw_capture/artifact/manifest.py
  │ src/backup_cockpit/raw_capture/domain/enums.py tests/unit/test_artifact_manifest.py 2>&1 && echo
  │ "ruff OK" && .venv/bin/mypy src/backup_cockpit/raw_capture/artifact/manifest.py
  │ src/backup_cockpit/raw_capture/domain/enums.py 2>&1
  └ 4 lines…

All checks pass. Run the full test suite one more time to confirm:

● Final test run (shell)
  │ PATH=".venv/bin:$PATH" .venv/bin/pytest tests/unit/test_artifact_manifest.py -v 2>&1
  └ 11 lines…

Now write the answer file and append to history:

● Ensure answer dir exists (shell)
  │ mkdir -p /home/oem/Documents/Sandbox/Kody/Projects/Backupper/.milkyflow/agents/developer/answers
  │ /EPIC_1_US_3
  └ 1 line…

● Create 2_ARTIFACT_MANIFEST_MODEL.md +114
  └ .milkyflow/agents/developer/answers/EPIC_1_US_3/2_ARTIFACT_MANIFEST_MODEL.md

Now append to the history file:

● Append history row (shell)
  │ HISTORY="/home/oem/Documents/Sandbox/Kody/Projects/Backupper/.milkyflow/agents/history.md"
  │ if [ ! -f "$HISTORY" ]; then
  │ echo "| Timestamp | Agent | Scenario | Details |" > "$HISTORY"
  │ echo "|-----------|-------|----------|---------|" >> "$HISTORY"
  │ fi…
  └ 3 lines…

All done. Here's the summary:

## Task complete — `2_ARTIFACT_MANIFEST_MODEL`

**13/13 tests pass. Ruff: clean. Mypy: clean.**

### What was implemented
- **`enums.py`** — added `ArtifactCompleteness(StrEnum)` with `COMPLETE="complete"` / `PARTIAL="partial"`.
- **`artifact/manifest.py`** — `ArtifactPartManifest` and `ArtifactManifest` frozen Pydantic v2 models, `write_manifest()` (atomic via `.tmp`→rename), `read_manifest()` (propagates `FileNotFoundError` and `ValidationError`), `MANIFEST_FILENAME = "manifest.json"`.
- **`tests/unit/test_artifact_manifest.py`** — all 13 required test cases.

### One assumption
`StrEnum` was used (matching the existing file convention) instead of the literal `(str, enum.Enum)` from the prompt — they are semantically identical.



Changes    +453 -2
AI Credits 41.4 (2m 38s)
Tokens     ↑ 533.2k (493.3k cached, 39.8k written) • ↓ 7.8k (40 reasoning)
Resume     copilot --resume=13877a45-7f09-48a5-9f9a-fe31a8ce2966