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Oleksandr Bezdieniezhnykh
53 lines
2.1 KiB
Markdown
53 lines
2.1 KiB
Markdown
# Phase 0: Context & Baseline
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**Role**: Software engineer preparing for refactoring
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**Goal**: Collect refactoring goals, create run directory, capture baseline metrics
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**Constraints**: Measurement only — no code changes
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## 0a. Collect Goals
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If PROBLEM_DIR files do not yet exist, help the user create them:
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1. `problem.md` — what the system currently does, what changes are needed, pain points
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2. `acceptance_criteria.md` — success criteria for the refactoring
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3. `security_approach.md` — security requirements (if applicable)
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Store in PROBLEM_DIR.
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## 0b. Create RUN_DIR
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1. Scan REFACTOR_DIR for existing `NN-*` folders
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2. Auto-increment the numeric prefix (e.g., if `01-testability-refactoring` exists, next is `02-...`)
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3. Determine the run name:
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- If guided mode with input file: derive from input file name or context (e.g., `01-testability-refactoring`)
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- If automatic mode: ask user for a short run name, or derive from goals (e.g., `01-coupling-refactoring`)
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4. Create `REFACTOR_DIR/NN-[run-name]/` — this is RUN_DIR for the rest of the workflow
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Announce RUN_DIR path to user.
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## 0c. Capture Baseline
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1. Read problem description and acceptance criteria
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2. Measure current system metrics using project-appropriate tools:
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| Metric Category | What to Capture |
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| **Coverage** | Overall, unit, blackbox, critical paths |
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| **Complexity** | Cyclomatic complexity (avg + top 5 functions), LOC, tech debt ratio |
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| **Code Smells** | Total, critical, major |
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| **Performance** | Response times (P50/P95/P99), CPU/memory, throughput |
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| **Dependencies** | Total count, outdated, security vulnerabilities |
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| **Build** | Build time, test execution time, deployment time |
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3. Create functionality inventory: all features/endpoints with status and coverage
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**Self-verification**:
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- [ ] RUN_DIR created with correct auto-incremented prefix
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- [ ] All metric categories measured (or noted as N/A with reason)
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- [ ] Functionality inventory is complete
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- [ ] Measurements are reproducible
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**Save action**: Write `RUN_DIR/baseline_metrics.md`
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**BLOCKING**: Present baseline summary to user. Do NOT proceed until user confirms.
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