missions/_docs/06_metrics/retro_2026-05-16.md

Retrospective — 2026-05-16

Scope: existing-code flow, Cycle 1 (Phase A Steps 1–8 + Phase B Steps 9–17, partial — 14/15/16 skipped per user, zero-source-diff justification). Coverage window: 2026-05-14 (rename leftovers + Phase A start) → 2026-05-16 (AZ-588 closeout). Previous retrospective: N/A — first retro for this codebase.

Implementation Summary

Metric	Value
Total batches	5 (batches 01–04 in cycle-1 Test Implementation; batch 05 in cycle-1 Refactor)
Total tasks	12 (AZ-576..AZ-586 test tasks + AZ-588 refactor task)
Total complexity points	48 SP (47 test + 1 refactor)
Avg tasks per batch	2.4
Avg complexity per batch	9.6 SP
Run-mode mix	4 Test Implementation batches + 1 Refactor batch
Cumulative reviews triggered	1 (cumulative_review_batches_01-03_cycle1_report.md)

Quality Metrics

Code Review Results

Verdict	Count	Percentage
PASS	0	0%
PASS_WITH_WARNINGS	4 (batches 01–04, self-review or cumulative)	80%
PASS (waived — zero source diff)	1 (batch 05)	20%
FAIL	0	0%

Findings by Severity (across batches 01–04 + cumulative)

Severity	Count
Critical	0
High	0
Medium	0
Low	~10 (3 in batch 02, 4 in batch 03, 3 in batch 04, 4 in cumulative review with one carry-forward from baseline)

Findings by Category

Category	Count	Top sources
Coverage gap (Skippable tests)	12 distinct test methods across batches 02, 03, 04	docker-CLI + socket not provisioned in e2e-consumer image
Design (spec-vs-code carry-forward)	6 carry-forwards	FT-P-03 route shape; FT-P-14/15 flat GeoPoint; FT-N-07 missing-parent; NFT-RES-01/02 cascade order; NFT-RES-08 TOCTOU
Style / Maintainability	3	xUnit1030 ConfigureAwait (auto-fixed, batch 02); ParseHumanBytes duplication (batch 04); brittle Database string-Replace (batch 03)
Observability	1	PerformanceTests intentional throw on non-2xx-non-404 (batch 04)

Auto-Fix Performance

Batch	Auto-fix attempts	Outcome
01	0	n/a
02	1 round	89× xUnit1030 warnings → 0 (Style/Low, eligible per matrix)
03	1 round	3 missing-using errors → 0 (Style/Low)
04	1 round	1 TokenMinter parameter-less ctor → 0 (Style/Low)
05	0	n/a (zero source diff)

Auto-fix escalations: 0. The Auto-Fix Gate matrix correctly classified every finding; no Critical/Security/Architecture findings required user intervention.

Efficiency

Metric	Value
Blocked tasks	0
Tasks requiring user-intervention fixes after review	0
Batch with most findings	Batches 03 and 04 tied at 3 Low findings (no severity ≥ Medium in any batch)
Stuck agents	0
Tracker (Jira) availability incidents	0
Leftovers replayed this cycle	0 (the open leftover 2026-05-14_rename-flights-to-missions.md is cross-repo coordination, no replayable items in this workspace)

Blocker Analysis

No blockers. Skippable tests are not blockers — they have explicit skip reasons and a tracked follow-up.

Structural Metrics (cycle 1 snapshot — first snapshot, no deltas)

Metric	Value
Component count	6 (01_vehicle_catalog, 02_mission_planning, 04_persistence, 05_identity, 06_http_conventions, 07_host)
Component import cycles	0
Public-API contracts directory	absent (this project does not use _docs/02_document/contracts/)
Module-layout convention	custom — layer-organized (Controllers/, Services/, DTOs/, Database/, etc.) rather than per-component dirs
Architecture baseline findings (architecture_compliance_baseline.md) entering cycle	4 (F1–F4)
Architecture findings resolved this cycle	1 (F4 partial — empty scaffolding dirs Entities/ + DTOs/Requests/ removed via AZ-588; Infrastructure/ remained because it is now in use)
Architecture findings newly introduced	0
Net Architecture delta	−1 (good — first cycle to actively reduce baseline debt)

Snapshot persisted at _docs/06_metrics/structure_2026-05-16.md (will be created alongside this retro).

Trend Comparison

N/A — first retrospective for this codebase. Future retros will compare against this baseline.

Top 3 Improvement Actions

1. Provision docker-CLI + socket mount in the e2e-consumer image (3 SP, follow-up #1 from implementation_report_tests.md)

   • Impact: activates the 12 currently-Skippable tests (FT-P-17, FT-N-08, NFT-SEC-08, NFT-SEC-12/13, NFT-RES-01..04, NFT-RES-07, NFT-RES-LIM-01..04, ColdStartRss) — recovers ~25% of nominal coverage that is dormant today.
   • Effort: low — single Dockerfile change (apk add docker-cli) + docker-compose.test.yml socket bind.
   • Owner suggestion: bundle with the existing "Outstanding follow-ups" list as a single ticket; touches Helpers/MissionsContainerHelper.cs and the ParseHumanBytes duplication captured in batch 04 as a free side-effect.

2. Resolve the 6 spec-vs-code carry-forwards (3–8 SP depending on whether each forks spec or code)

   • Impact: removes test-as-divergence-marker debt — each carry-forward today is a known failure-on-purpose marker that flips when reality changes. Six is a tolerable count; double-digit would mean the spec is drifting faster than code.
   • Effort: medium — each carry-forward needs a product decision (which side wins?). Two of them (NFT-RES-01 ADR-006, NFT-RES-08 index-closes-race) already have ADR references and can move directly to spec update.
   • Discovery: dotnet test --filter "carry_forward~..." surfaces the set; tags are listed in implementation_report_tests.md § Spec-vs-Code Carry-forwards.

3. Codify "zero-source-diff batch" review-waiver pattern in the implement skill (1 SP, doc-only)

   • Impact: removes ambiguity for future structural-cleanup batches like AZ-588 — today the implement skill's Step 9 mandates /code-review unconditionally, which is N/A when the batch carries only orchestration artifacts.
   • Effort: low — add a one-paragraph carve-out to .cursor/skills/implement/SKILL.md § Step 9 stating the waiver conditions (no source files in diff; only _docs/_autodev_state.md, batch report, and task-archive moves) and the required in-batch documentation line ("Code Review Verdict: PASS (waived — zero net code change)").

Suggested Rule/Skill Updates

File	Change	Rationale
.cursor/skills/implement/SKILL.md § Step 9	Add carve-out for zero-source-diff batches (see action #3 above)	Captures the pattern used by batch 05 to avoid future re-litigation of "should I run code-review on this 3-file orchestration commit?"
.cursor/skills/autodev/flows/existing-code.md Step 14/15/16 auto-chain	Add an inline note: "For zero-source-diff cleanup batches, recommend skipping 14/15 and asking before 16"	Today the orchestrator has no built-in heuristic for "this batch added zero behavior"; surfacing this to the user via a recommendation reduces the friction we hit at the Steps 14/15/16 gate today.
_docs/02_document/architecture_compliance_baseline.md	Append a "Resolved by cycle" column to track which baseline findings have been retired and in which cycle	Today F4 partial is resolved but the baseline file does not yet record that fact. The structural delta computation in future retros needs a stable record. (Owner: cycle 2 documentation pass.)

Sign-off

Cycle 1 complete:

• Phase A delivered the full baseline (docs, test specs, testability assessment, 47 SP of test implementation, baseline architecture scan with 1 partial resolution).
• Phase B cycle 1 closed with a single 1-SP cleanup (AZ-588) and a user-driven cross-repo coordination commit (AZ-549a / a26d7b1).
• Zero blockers; zero Critical/High/Medium findings; zero auto-fix escalations.
• 30 SkippableFacts inherited from the test baseline remain dormant pending docker-socket provisioning (action #1 above).
• Local branch dev is 2 commits ahead of origin/dev and has not been pushed — user deferred the push decision.