cover

What this skill does

# Cover — Test Suite Generator

Generate comprehensive test suites for existing code with real-service integration testing and automated failure healing.

> **Note:** If `disableSkillShellExecution` is enabled (CC 2.1.91), the precondition check for vitest/jest won't run. Verify a test runner is installed before proceeding: `npx vitest --version` or `npx jest --version`.

## Quick Start

```bash
/ork:cover authentication flow
/ork:cover --model=opus payment processing
/ork:cover --tier=unit,integration user service
/ork:cover --real-services checkout pipeline
```

## Argument Resolution

```python
SCOPE = "$ARGUMENTS"  # e.g., "authentication flow"

# Flag parsing
MODEL_OVERRIDE = None
TIERS = ["unit", "integration", "e2e"]  # default: all three
REAL_SERVICES = False

for token in "$ARGUMENTS".split():
    if token.startswith("--model="):
        MODEL_OVERRIDE = token.split("=", 1)[1]
        SCOPE = SCOPE.replace(token, "").strip()
    elif token.startswith("--tier="):
        TIERS = token.split("=", 1)[1].split(",")
        SCOPE = SCOPE.replace(token, "").strip()
    elif token == "--real-services":
        REAL_SERVICES = True
        SCOPE = SCOPE.replace(token, "").strip()
```

---

## Step -0.5: Effort-Aware Coverage Scaling (CC 2.1.76, env var since 2.1.120)

Read `${CLAUDE_EFFORT}` (CC 2.1.120+) first; explicit `--effort=` token wins as override. Default `high` when CC < 2.1.120 and no flag. Pattern matches assess + explore (#1540). Scale test generation depth:

| Effort Level | Tiers Generated | Agents | Heal Iterations |
|-------------|----------------|--------|-----------------|
| **low** | Unit only | 1 agent | 1 max |
| **medium** | Unit + Integration | 2 agents | 2 max |
| **high** (default) | Unit + Integration + E2E | 3 agents | 3 max |
| **xhigh** (Opus 4.8, CC 2.1.111+) | Unit + Integration + E2E | 3 agents | 4 max (one extra heal pass) |

> **Override:** Explicit `--tier=` flag or user selection overrides `/effort` downscaling.

## Step -1: MCP Probe + Resume Check

```python
# Probe MCPs (parallel):
# memory is alwaysLoad in .mcp.json (CC 2.1.121+, #1541) — probe below kept as fallback for older CC:
ToolSearch(query="select:mcp__memory__search_nodes")
ToolSearch(query="select:mcp__context7__resolve-library-id")

Write(".claude/chain/capabilities.json", {
  "memory": <true if found>,
  "context7": <true if found>,
  "skill": "cover",
  "timestamp": now()
})

# Resume check:
Read(".claude/chain/state.json")
# If exists and skill == "cover": resume from current_phase
# Otherwise: initialize state
```

---

## Step 0: Scope & Tier Selection

```python
AskUserQuestion(
  questions=[
    {
      "question": "What test tiers should I generate?",
      "header": "Test Tiers",
      "options": [
        {"label": "Full coverage (Recommended)", "description": "Unit + Integration (real services) + E2E"},
        {"label": "Unit + Integration", "description": "Skip E2E, focus on logic and service boundaries"},
        {"label": "Unit only", "description": "Fast isolated tests for business logic"},
        {"label": "E2E only", "description": "Playwright browser tests"}
      ],
      "multiSelect": false
    },
    {
      "question": "Healing strategy for failing tests?",
      "header": "Failure Handling",
      "options": [
        {"label": "Auto-heal (Recommended)", "description": "Fix failing tests up to 3 iterations"},
        {"label": "Generate only", "description": "Write tests, report failures, don't fix"},
        {"label": "Strict", "description": "All tests must pass or abort"}
      ],
      "multiSelect": false
    }
  ]
)
```

Override TIERS based on selection. Skip this step if `--tier=` flag was provided.

---

## Task Management (MANDATORY)

```python
# 1. Create main task IMMEDIATELY
TaskCreate(subject=f"Cover: {SCOPE}", description="Generate comprehensive test suite with real-service testing", activeForm=f"Generating tests for {SCOPE}")

# 2. Create subtasks for each phase
TaskCreate(subject="Discover scope and detect frameworks", activeForm="Discovering test scope")    # id=2
TaskCreate(subject="Analyze coverage gaps", activeForm="Analyzing coverage gaps")                  # id=3
TaskCreate(subject="Generate tests (parallel per tier)", activeForm="Generating tests")            # id=4
TaskCreate(subject="Execute generated tests", activeForm="Running tests")                          # id=5
TaskCreate(subject="Heal failing tests", activeForm="Healing test failures")                       # id=6
TaskCreate(subject="Generate coverage report", activeForm="Generating report")                     # id=7

# 3. Set dependencies for sequential phases
TaskUpdate(taskId="3", addBlockedBy=["2"])  # Analysis needs discovery first
TaskUpdate(taskId="4", addBlockedBy=["3"])  # Generation needs gap map
TaskUpdate(taskId="5", addBlockedBy=["4"])  # Execution needs generated tests
TaskUpdate(taskId="6", addBlockedBy=["5"])  # Healing needs test results
TaskUpdate(taskId="7", addBlockedBy=["6"])  # Report needs healed suite

# 4. Before starting each task, verify it's unblocked
task = TaskGet(taskId="2")  # Verify blockedBy is empty

# 5. Update status as you progress
TaskUpdate(taskId="2", status="in_progress")  # When starting
TaskUpdate(taskId="2", status="completed")    # When done — repeat for each subtask
```

---

## 6-Phase Workflow

| Phase | Activities | Output |
|-------|------------|--------|
| **1. Discovery** | Detect frameworks, scan scope, find untested code | Framework map, file list |
| **2. Coverage Analysis** | Run existing tests, map gaps per tier | Coverage baseline, gap map |
| **3. Generation** | Parallel test-generator agents per tier | Test files created |
| **4. Execution** | Run all generated tests | Pass/fail results |
| **5. Heal** | Fix failures, re-run (max 3 iterations) | Green test suite |
| **6. Report** | Coverage delta, test count, summary | Coverage report |

### Phase Handoffs

| After Phase | Handoff File | Key Outputs |
|-------------|-------------|-------------|
| 1. Discovery | `01-cover-discovery.json` | Frameworks, scope files, tier plan |
| 2. Analysis | `02-cover-analysis.json` | Baseline coverage, gap map |
| 3. Generation | `03-cover-generation.json` | Files created, test count per tier |
| 5. Heal | `05-cover-healed.json` | Final pass/fail, iterations used |

---

### Phase 1: Discovery

Detect the project's test infrastructure and scope the work.

```python
# PARALLEL — all in ONE message:
# 1. Framework detection (hook handles this, but also scan manually)
Grep(pattern="vitest|jest|mocha|playwright|cypress", glob="package.json", output_mode="content")
Grep(pattern="pytest|unittest|hypothesis", glob="pyproject.toml", output_mode="content")
Grep(pattern="pytest|unittest|hypothesis", glob="requirements*.txt", output_mode="content")

# 2. Real-service infrastructure
Glob(pattern="**/docker-compose*.yml")
Glob(pattern="**/testcontainers*")
Grep(pattern="testcontainers", glob="**/package.json", output_mode="content")
Grep(pattern="testcontainers", glob="**/requirements*.txt", output_mode="content")

# 3. Existing test structure
Glob(pattern="**/tests/**/*.test.*")
Glob(pattern="**/tests/**/*.spec.*")
Glob(pattern="**/__tests__/**/*")
Glob(pattern="**/test_*.py")

# 4. Scope files (what to test)
# If SCOPE specified, find matching source files
Grep(pattern=SCOPE, output_mode="files_with_matches")
```

**Real-service decision:**
- `docker-compose*.yml` found → integration tests use real services
- `testcontainers` in deps → use testcontainers for isolated service instances
- Neither found + `--real-services` flag → error: "No docker-compose or testcontainers found. Install testcontainers or remove --real-services flag."
- Neither found, no flag → integration tests use mocks (MSW/VCR)

Load real-service detection details: `Read("${CLAUDE_SKILL_DIR}/references/real-service-detection.md")`

### Phase 2: Coverage Analysis

Run existing tests and identify gaps.

```python
# Detect and run coverag