stable-diffusion-webui/docs/milestones/M09/M09_audit.md

M09 Audit — Execution Context Introduction

Milestone: M09
Title: Execution context introduction
Mode: DELTA AUDIT
Range: 710a0abd (M08) → 2c6a2510 (M09 merge)
CI Status: Green (Quality 22986731960)
Refactor Posture: Behavior-Preserving
Audit Verdict: 🟢 Milestone objectives met. Runtime context introduced. Phase II complete. Proceed to M10.

---

1. Executive Summary (Delta-First)

Wins:

• Introduced RuntimeContext dataclass grouping model, opts_snapshot, device, state, cmd_opts
• Attached p.runtime_context in process_images_inner() after opts_snapshot creation
• Additive only; no migration of shared.* reads; no behavior change
• Fifth Phase II runtime seam; completes Phase II — Runtime Seam Preparation
• New module runtime_context.py 100% covered by quality tests

Risks: None identified.

Next action: Proceed to M10 (ProcessingRunner skeleton).

---

2. Delta Map & Blast Radius

Changed	Impact
modules/runtime_context.py	New — RuntimeContext dataclass
modules/processing.py	Modified — import + p.runtime_context assignment
docs/milestones/M09/*	Plan, toolcalls, run1, run2, audit, summary

Consumer surfaces touched: None. API, CLI, file formats, extension API unchanged.

Blast radius: process_images_inner initialization only. Context is write-only; no reads migrated. Breakage would require RuntimeContext construction failure — covered by smoke/quality tests exercising full generation path.

---

3. Architecture & Modularity Review

• Boundary violations: None. RuntimeContext is a simple data container.
• Coupling added: Minimal — processing imports runtime_context; no new circular deps.
• Dead abstractions: None. Context will be consumed in Phase III.
• Layering leaks: None.

Keep: Current structure. Fix now: None. Defer: None.

---

4. CI/CD & Workflow Audit

Check	Result
Smoke Tests (PR #26)	22984770373 ✓
Linter (PR #26)	22984770390 ✓
Quality Tests (post-merge)	22986731960 ✓
Coverage	≥40% gate satisfied (40% combined)
verify_pinned_deps	✓ Passed
pip-audit	Informational (M27)

CI Root Cause Summary: N/A (all green).
Minimal Fix Set: None.
Guardrails: Unchanged from M08.

---

5. Tests, Coverage, and Invariants (Delta-Only)

• Coverage delta: runtime_context.py 100% covered; overall 40% maintained.
• New tests: None added; existing smoke/quality tests cover critical path (process_images_inner invoked).
• Invariant verification: PASS — generation behavior, file output, extension compat, API, CLI preserved.
• Flaky tests: None introduced.

Missing Invariants: None.
Missing Tests: None for M09 scope.
Fast Fixes: None.

---

6. Security & Supply Chain (Delta-Only)

• Dependency deltas: None. No new dependencies.
• Secrets exposure: None.
• Workflow trust boundary: Unchanged.
• pip-audit: Informational; vulns deferred to M27 (M04 baseline).

---

7. Refactor Guardrail Compliance Check

Guardrail	Status
Invariant declaration	PASS — M09 plan declared invariants; verified by CI
Baseline discipline	PASS — Range 710a0abd...2c6a2510; delta vs M08 documented
Consumer contract protection	PASS — API/CLI/schema unchanged; smoke tests exercise contracts
Extraction/split safety	N/A
No silent CI weakening	PASS — All gates enforced

---

8. Top Issues (Max 7, Ranked)

None. No issues identified for M09.

---

9. PR-Sized Action Plan

ID	Task	Category	Acceptance Criteria	Risk	Est
—	None required	—	—	—	—

---

10. Deferred Issues Registry (Cumulative)

ID	Issue	Discovered	Deferred To	Reason	Blocker?	Exit Criteria
SEC-001	pip-audit vulns	M04	M27	Supply-chain evidence milestone	No	pip-audit clean or documented

---

11. Score Trend (Cumulative)

Milestone	Invariants	Compat	Arch	CI	Sec	Tests	DX	Docs	Overall
M08	5	5	5	5	5	5	5	5	5.0
M09	5	5	5	5	5	5	5	5	5.0

M09 maintains 5.0. Execution context is additive; no new risk surface.

---

12. Flake & Regression Log (Cumulative)

Item	Type	First Seen	Current Status	Last Evidence	Fix/Defer
—	—	—	—	—	—

No flaky tests or behavior-drift events for M09.