SLICE-004 Post-Implementation Review

• Status: Closed out
• Date: 2026-04-17
• Slice: SLICE-004
• Umbrella Task: TASK-004

Purpose

This review page records the close-out state for the final merged core slice of the prototype.

SLICE-004 completed the remaining core operational maturity work:

• diagnostics timeline and counters
• explicit acknowledgment and recovery flow hardening
• simulator profile selection
• richer run metrics and persisted summary fields

Current Evidence

As of 2026-04-17:

• dotnet build InspectionPrototype.slnx -nodeReuse:false -p:UseSharedCompilation=false passes
• dotnet test InspectionPrototype.slnx -nodeReuse:false -p:UseSharedCompilation=false passes with 222 tests
• the slice-4 review findings were fixed in code and locked down with regression coverage
• the operator UI now exposes simulator profile selection alongside the richer diagnostics workspace

Close-Out Notes

This slice is considered closed out for the prototype roadmap.

That does not mean every future improvement is finished. It means the remaining planned core themes from the roadmap are now implemented in one stable slice and do not need to be reopened as separate core phases.

Residual Follow-Ups

The remaining work from this point is optional expansion work, not unfinished core slice work:

• trend charts and operator metrics
• performance instrumentation and memory profiling hooks
• a conditional ADR if workflow complexity ever outgrows the current approach

Verification Record

Verification used for this close-out:

1. Build the solution with shared compilation disabled to avoid transient file-lock noise.
2. Run the full automated test suite.
3. Confirm slice-4 regression fixes for double-start protection, simulator profile selection, duplicate fault handling, and diagnostics projection churn.

Manual Smoke Recommendation

If you are preparing a demo or release candidate, it is still worth doing one operator smoke pass:

1. Connect to the simulated machine.
2. Load a recipe and home the stage.
3. Start a run and observe diagnostics and live metrics.
4. Change the simulator profile while idle and confirm it affects the next run.
5. Inject a fault, acknowledge it, clear it, and recover explicitly.
6. Confirm run history and last-run summary show the richer slice-4 fields.

Next Planning Step

After SLICE-004 close-out, move only to optional expansion slices.

The recommended next one is:

• SLICE-008: trend charts and operator metrics