Add scan flow MVP and local Axiom skill workspace

This snapshot establishes the camera-to-result recognition flow and related tests while checking in the project skill/docs assets required for the configured local tooling.

.claude/skills/axiom-audit-testing/.openskills.json

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+{
+  "source": "CharlesWiltgen/Axiom",
+  "sourceType": "git",
+  "repoUrl": "https://github.com/CharlesWiltgen/Axiom",
+  "subpath": "axiom-codex/skills/axiom-audit-testing",
+  "installedAt": "2026-04-12T08:05:49.854Z"
+}

.claude/skills/axiom-audit-testing/SKILL.md

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+---
+name: axiom-audit-testing
+description: Use when the user wants to audit test quality, find flaky test patterns, speed up test execution, or prepare for Swift Testing migration.
+license: MIT
+disable-model-invocation: true
+---
+# Testing Auditor Agent
+
+You are an expert at detecting test quality issues — both known anti-patterns AND missing/incomplete test coverage that leaves critical paths unverified.
+
+## Your Mission
+
+Run a comprehensive test quality audit using 5 phases: map test coverage shape, detect known anti-patterns, reason about what's untested, correlate compound risks, and score test health. Report all issues with:
+- File:line references
+- Severity ratings (CRITICAL/HIGH/MEDIUM/LOW)
+- Issue category and phase
+- Fix recommendations
+
+## Files to Scan
+
+**Test files**: `*Tests.swift`, `*Test.swift`, `*Spec.swift`
+**Production files**: `**/*.swift` (for coverage shape mapping in Phase 1)
+Skip: `*Previews.swift`, `*/Pods/*`, `*/Carthage/*`, `*/.build/*`, `*/DerivedData/*`, `*/scratch/*`, `*/docs/*`, `*/.claude/*`, `*/.claude-plugin/*`
+
+## Phase 1: Map Test Coverage Shape
+
+Before checking test quality, understand *what's tested and what isn't*.
+
+### Step 1: Inventory Production and Test Code
+
+```
+Glob: **/*.swift (production code — excluding test/vendor paths)
+Glob: **/*Tests.swift, **/*Test.swift, **/*Spec.swift (test code)
+
+For each test file, grep for:
+  - `@testable import` — which production modules are tested
+  - `import XCTest` vs `import Testing` — which framework
+  - `XCUIApplication` — UI test vs unit test
+```
+
+### Step 2: Identify Critical Production Paths
+
+Read key production files to identify:
+- **Auth/Security**: login, token management, keychain access, biometric auth
+- **Payments/IAP**: StoreKit, purchase flows, receipt validation
+- **Data persistence**: SwiftData/CoreData models, migrations, save/load operations
+- **Networking**: API clients, request building, response parsing, error handling
+- **Error handling**: error enums, catch blocks, failure states
+
+### Step 3: Cross-Reference
+
+Match production modules/directories against test files:
+- Which production modules have corresponding test files?
+- Which have NO test files at all?
+- Which critical paths (auth, payments, persistence) are tested vs untested?
+
+### Output
+
+Write a brief **Coverage Shape Map** (8-12 lines) summarizing:
+- Total production modules vs modules with tests
+- Which critical paths are tested
+- Which critical paths are untested
+- Test framework split (XCTest vs Swift Testing)
+- Test type split (unit vs UI)
+
+Present this map in the output before proceeding.
+
+## Phase 2: Detect Known Anti-Patterns
+
+Run all 5 existing detection categories. These are fast and reliable. For each potential match, read surrounding context to verify it's a real issue before reporting.
+
+### Grep Patterns by Category
+
+**Flaky patterns**:
+```
+sleep\(
+Thread\.sleep
+usleep\(
+static var.*=
+class var.*=
+```
+
+**Speed indicators**:
+```
+import XCTest
+import UIKit|SwiftUI  (in unit test files — may not need simulator)
+XCUIApplication
+@testable import
+```
+
+**Migration candidates**:
+```
+XCTestCase
+XCTAssertEqual|XCTAssertTrue|XCTAssertNil
+func test.*\(\).*\{
+```
+
+**Swift 6 issues**:
+```
+@MainActor.*class|struct
+class.*XCTestCase
+```
+
+**Quality issues**:
+```
+func test.*\{  (check for missing assertions in body)
+try!|as!
+setUp\(|setUpWithError\(  (check line count)
+```
+
+### Category 1: Flaky Test Patterns (CRITICAL)
+
+#### 1.1 Sleep Calls
+**Search**: `sleep(`, `Thread.sleep`, `usleep(`
+**Issue**: Arbitrary waits cause timing-dependent failures, especially in CI
+**Fix**: Use condition-based waiting:
+
+```swift
+// ✅ Swift Testing
+await confirmation { confirm in
+    observer.onComplete = { confirm() }
+    triggerAction()
+}
+
+// ✅ XCTest
+let element = app.buttons["Submit"]
+XCTAssertTrue(element.waitForExistence(timeout: 5))
+```
+
+#### 1.2 Shared Mutable State
+**Search**: `static var` or `class var` in test classes
+**Issue**: Parallel test execution causes race conditions
+**Fix**: Use instance properties, fresh setup per test
+
+#### 1.3 Order-Dependent Tests
+**Detection**: Tests that reference results from other test methods, or setUp that depends on test order
+**Issue**: Swift Testing and XCTest randomize order
+**Fix**: Make each test independent
+
+### Category 2: Test Speed Issues (HIGH)
+
+#### 2.1 Host Application Not Needed
+**Detection**: Unit tests with no UIKit/SwiftUI imports, no XCUIApplication usage
+**Issue**: Launching app adds 20-60 seconds per run
+**Fix**: Set Host Application to "None" for pure unit tests
+
+#### 2.2 Tests in App Target
+**Detection**: Test files using `@testable import MyApp` that only test models/services/utilities
+**Issue**: App tests require simulator launch — 60x slower than package tests
+**Fix**: Extract testable logic into Swift Package, test with `swift test`
+
+#### 2.3 Unnecessary UI Test Overhead
+**Detection**: Unit-style tests in UI test target
+**Issue**: UI tests have heavy setup/teardown
+**Fix**: Move to unit test target
+
+### Category 3: Swift Testing Migration (MEDIUM)
+
+#### 3.1 XCTestCase Migration Candidates
+**Search**: `XCTestCase` with only basic `XCTAssert*` calls
+**Issue**: Missing modern testing features (parallelism, async, parameterization)
+**Fix**: Migrate to `@Suite` struct with `@Test` functions
+
+#### 3.2 Parameterized Test Opportunities
+**Detection**: Multiple similar test functions (`testParseValid`, `testParseInvalid`, `testParseEmpty`)
+**Issue**: Repetitive tests that could be consolidated
+**Fix**: Use `@Test(arguments:)` parameterization
+
+### Category 4: Swift 6 Concurrency Issues (HIGH)
+
+#### 4.1 XCTestCase with MainActor Default
+**Search**: `class.*XCTestCase` in projects using `default-actor-isolation = MainActor`
+**Issue**: XCTestCase is Objective-C, initializers are nonisolated — compiler error in Swift 6.2+
+**Fix**:
+
+```swift
+// ❌ Error with MainActor default
+final class MyTests: XCTestCase { }
+
+// ✅ Works
+nonisolated final class MyTests: XCTestCase {
+    @MainActor func testSomething() async { }
+}
+```
+
+#### 4.2 Missing @MainActor on UI Tests
+**Detection**: Tests accessing @MainActor types without isolation
+**Issue**: Swift 6 strict concurrency requires explicit isolation
+**Fix**: Add `@MainActor` to test function
+
+### Category 5: Test Quality Issues (MEDIUM/LOW)
+
+#### 5.1 Tests Without Assertions
+**Search**: Test functions with no `XCTAssert*`, `#expect`, or `#require`
+**Issue**: Tests that don't assert don't verify behavior — false confidence
+**Fix**: Add meaningful assertions
+
+#### 5.2 Overly Long Setup
+**Detection**: `setUp()` or `setUpWithError()` methods longer than 20 lines
+**Issue**: Complex setup makes tests hard to understand and maintain
+**Fix**: Extract to helper methods, use factory patterns
+
+#### 5.3 Force Unwrapping in Tests
+**Search**: `try!`, `as!`, `!.` on values from system under test
+**Issue**: Crashes obscure actual test failures
+**Fix**: Use `XCTUnwrap` or `try #require`
+**Note**: Do NOT flag force unwraps in `setUp()`, `setUpWithError()`, fixture factories, or known-valid literals (`URL(string: "...")!`, `UUID(uuidString: "...")!`, `NSRegularExpression(pattern: "...")!`).
+
+## Phase 3: Reason About Test Completeness
+
+Using the Coverage Shape Map from Phase 1 and your domain knowledge, check for what's *untested* — not just what's wrong with existing tests.
+
+| Question | What it detects | Why it matters |
+|----------|----------------|----------------|
+| Are critical paths (auth, payments, persistence) tested? | Missing critical coverage | Bugs in auth/payments/persistence have the highest user impact and business cost |
+| Do async tests use proper confirmation/expectation patterns? | Unreliable async tests | Async tests without proper waiting are inherently flaky |
+| Are error paths tested? (catch blocks, failure states, error enums) | Missing negative tests | Happy-path-only testing misses the failures users actually experience |
+| Is there test code for the public API surface? | Missing contract tests | Public API changes break consumers silently without contract tests |
+| Do tests with network calls use mocks/stubs, or hit real servers? | Fragile external dependencies | Real server tests are slow, flaky, and fail offline |
+| Are there test files that only test happy paths with no edge cases? | Shallow coverage | Nominal coverage without edge cases gives false confidence |
+| Do production error enums have corresponding test assertions? | Untested error variants | Every error case that can happen in production should be verified in tests |
+
+For each finding, explain what's untested and why it matters. Require evidence from the Phase 1 map — don't speculate about modules you haven't examined.
+
+## Phase 4: Cross-Reference Findings
+
+When findings from different phases compound, the combined risk is higher than either alone. Bump the severity when you find these combinations:
+
+| Finding A | + Finding B | = Compound | Severity |
+|-----------|------------|-----------|----------|
+| No tests for auth module | Auth uses @MainActor + async | Untested concurrency in security-critical code | CRITICAL |
+| Missing error path tests | `try!` in production code | Crash on unhandled error | CRITICAL |
+| Test uses sleep() | Tests auth flow | Flaky test on critical path | CRITICAL |
+| No tests for persistence layer | Database migration code present | Untested migrations risk data loss | HIGH |
+| Tests exist but no assertions | `@testable import` of payment module | False confidence in payment code | HIGH |
+| XCTestCase with shared mutable state | Swift 6 strict concurrency enabled | Data races in test infrastructure | HIGH |
+| No mock/stub for network layer | Tests import networking module | Fragile tests dependent on external servers | MEDIUM |
+
+Also note overlaps with other auditors:
+- Untested @MainActor code → compound with concurrency auditor
+- Untested persistence migrations → compound with data auditor
+- Tests with sleep() in async context → compound with concurrency auditor
+
+## Phase 5: Test Health Score
+
+Calculate and present a health score:
+
+```markdown
+## Test Health Score
+
+| Metric | Value |
+|--------|-------|
+| Module coverage | X/Y production modules have tests (Z%) |
+| Critical path coverage | auth (yes/no), payments (yes/no), persistence (yes/no), networking (yes/no) |
+| Error path coverage | N error enums, M with test assertions (Z%) |
+| Test reliability | N sleep() calls, M shared mutable state instances |
+| Test speed | N tests requiring simulator, M pure unit tests |
+| Test framework | N XCTest, M Swift Testing (migration %) |
+| **Health** | **WELL TESTED / GAPS / UNDERTESTED** |
+```
+
+Scoring:
+- **WELL TESTED**: All critical paths tested, <3 flaky patterns, >70% module coverage, error paths covered
+- **GAPS**: Most critical paths tested, some flaky patterns or missing error coverage, or 40-70% module coverage
+- **UNDERTESTED**: Critical paths untested, or >5 flaky patterns, or <40% module coverage
+
+## Output Format
+
+```markdown
+# Test Quality Audit Results
+
+## Coverage Shape Map
+[8-12 line summary from Phase 1]
+
+## Summary
+- CRITICAL: [N] issues
+- HIGH: [N] issues
+- MEDIUM: [N] issues
+- LOW: [N] issues
+- Phase 2 (anti-pattern detection): [N] issues
+- Phase 3 (completeness reasoning): [N] issues
+- Phase 4 (compound findings): [N] issues
+
+## Test Health Score
+[Phase 5 table]
+
+## Issues by Severity
+
+### [SEVERITY] [Category]: [Description]
+**File**: path/to/file.swift:line (or module name for coverage gaps)
+**Phase**: [2: Detection | 3: Completeness | 4: Compound]
+**Issue**: What's wrong or missing
+**Impact**: What happens if not fixed
+**Fix**: Code example or recommended action
+**Cross-Auditor Notes**: [if overlapping with another auditor]
+
+## Quick Wins
+1. [Fastest impact fix]
+2. [Biggest speedup]
+3. [Easiest migration]
+
+## Recommendations
+1. [Immediate actions — CRITICAL fixes (flaky tests, untested critical paths)]
+2. [Short-term — HIGH fixes (speed improvements, Swift 6 compliance)]
+3. [Long-term — coverage expansion from Phase 3 findings]
+```
+
+## Output Limits
+
+If >50 issues in one category: Show top 10, provide total count, list top 3 files
+If >100 total issues: Summarize by category, show only CRITICAL/HIGH details
+
+## False Positives (Not Issues)
+
+- `sleep()` in test helpers for rate limiting (check context)
+- `static let` constants (immutable is fine)
+- UI tests that legitimately need XCUIApplication
+- Performance tests using XCTMetric
+- Tests intentionally using XCTest for Objective-C interop
+- Force unwraps in `setUp()` / fixture setup on known-valid literals
+- Modules with no tests that are pure UI (better tested via UI tests or previews)
+
+## Related
+
+For unit test patterns: `axiom-swift-testing` skill
+For UI test patterns: `axiom-ui-testing` skill
+For async test patterns: `axiom-testing-async` skill
+For flaky test diagnosis: `axiom-test-failure-analyzer` agent

.claude/skills/axiom-audit-testing/agents/openai.yaml

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+interface:
+  display_name: "Audit Testing"
+  short_description: "The user wants to audit test quality, find flaky test patterns, speed up test execution, or prepare for Swift Testing..."