Update .gitignore to include additional file types and directories for Python projects, enhancing environment management and build artifacts exclusion.

This commit is contained in:
Oleksandr Bezdieniezhnykh
2026-03-20 21:28:16 +02:00
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---
name: decompose
description: |
Decompose planned components into atomic implementable tasks with bootstrap structure plan.
4-step workflow: bootstrap structure plan, component task decomposition, integration test task decomposition, and cross-task verification.
Supports full decomposition (_docs/ structure) and single component mode.
Trigger phrases:
- "decompose", "decompose features", "feature decomposition"
- "task decomposition", "break down components"
- "prepare for implementation"
category: build
tags: [decomposition, tasks, dependencies, jira, implementation-prep]
disable-model-invocation: true
---
# Task Decomposition
Decompose planned components into atomic, implementable task specs with a bootstrap structure plan through a systematic workflow. All tasks are named with their Jira ticket ID prefix in a flat directory.
## Core Principles
- **Atomic tasks**: each task does one thing; if it exceeds 5 complexity points, split it
- **Behavioral specs, not implementation plans**: describe what the system should do, not how to build it
- **Flat structure**: all tasks are Jira-ID-prefixed files in TASKS_DIR — no component subdirectories
- **Save immediately**: write artifacts to disk after each task; never accumulate unsaved work
- **Jira inline**: create Jira ticket immediately after writing each task file
- **Ask, don't assume**: when requirements are ambiguous, ask the user before proceeding
- **Plan, don't code**: this workflow produces documents and Jira tasks, never implementation code
## Context Resolution
Determine the operating mode based on invocation before any other logic runs.
**Default** (no explicit input file provided):
- PLANS_DIR: `_docs/02_plans/`
- TASKS_DIR: `_docs/02_tasks/`
- Reads from: `_docs/00_problem/`, `_docs/01_solution/`, PLANS_DIR
- Runs Step 1 (bootstrap) + Step 2 (all components) + Step 3 (integration tests) + Step 4 (cross-verification)
**Single component mode** (provided file is within `_docs/02_plans/` and inside a `components/` subdirectory):
- PLANS_DIR: `_docs/02_plans/`
- TASKS_DIR: `_docs/02_tasks/`
- Derive component number and component name from the file path
- Ask user for the parent Epic ID
- Runs Step 2 (that component only, appending to existing task numbering)
Announce the detected mode and resolved paths to the user before proceeding.
## Input Specification
### Required Files
**Default:**
| File | Purpose |
|------|---------|
| `_docs/00_problem/problem.md` | Problem description and context |
| `_docs/00_problem/restrictions.md` | Constraints and limitations |
| `_docs/00_problem/acceptance_criteria.md` | Measurable acceptance criteria |
| `_docs/01_solution/solution.md` | Finalized solution |
| `PLANS_DIR/architecture.md` | Architecture from plan skill |
| `PLANS_DIR/system-flows.md` | System flows from plan skill |
| `PLANS_DIR/components/[##]_[name]/description.md` | Component specs from plan skill |
| `PLANS_DIR/integration_tests/` | Integration test specs from plan skill |
**Single component mode:**
| File | Purpose |
|------|---------|
| The provided component `description.md` | Component spec to decompose |
| Corresponding `tests.md` in the same directory (if available) | Test specs for context |
### Prerequisite Checks (BLOCKING)
**Default:**
1. PLANS_DIR contains `architecture.md` and `components/`**STOP if missing**
2. Create TASKS_DIR if it does not exist
3. If TASKS_DIR already contains task files, ask user: **resume from last checkpoint or start fresh?**
**Single component mode:**
1. The provided component file exists and is non-empty — **STOP if missing**
## Artifact Management
### Directory Structure
```
TASKS_DIR/
├── [JIRA-ID]_initial_structure.md
├── [JIRA-ID]_[short_name].md
├── [JIRA-ID]_[short_name].md
├── ...
└── _dependencies_table.md
```
**Naming convention**: Each task file is initially saved with a temporary numeric prefix (`[##]_[short_name].md`). After creating the Jira ticket, rename the file to use the Jira ticket ID as prefix (`[JIRA-ID]_[short_name].md`). For example: `01_initial_structure.md``AZ-42_initial_structure.md`.
### Save Timing
| Step | Save immediately after | Filename |
|------|------------------------|----------|
| Step 1 | Bootstrap structure plan complete + Jira ticket created + file renamed | `[JIRA-ID]_initial_structure.md` |
| Step 2 | Each component task decomposed + Jira ticket created + file renamed | `[JIRA-ID]_[short_name].md` |
| Step 3 | Each integration test task decomposed + Jira ticket created + file renamed | `[JIRA-ID]_[short_name].md` |
| Step 4 | Cross-task verification complete | `_dependencies_table.md` |
### Resumability
If TASKS_DIR already contains task files:
1. List existing `*_*.md` files (excluding `_dependencies_table.md`) and count them
2. Resume numbering from the next number (for temporary numeric prefix before Jira rename)
3. Inform the user which tasks already exist and are being skipped
## Progress Tracking
At the start of execution, create a TodoWrite with all applicable steps. Update status as each step/component completes.
## Workflow
### Step 1: Bootstrap Structure Plan (default mode only)
**Role**: Professional software architect
**Goal**: Produce `01_initial_structure.md` — the first task describing the project skeleton
**Constraints**: This is a plan document, not code. The `/implement` skill executes it.
1. Read architecture.md, all component specs, system-flows.md, data_model.md, and `deployment/` from PLANS_DIR
2. Read problem, solution, and restrictions from `_docs/00_problem/` and `_docs/01_solution/`
3. Research best implementation patterns for the identified tech stack
4. Document the structure plan using `templates/initial-structure-task.md`
The bootstrap structure plan must include:
- Project folder layout with all component directories
- Shared models, interfaces, and DTOs
- Dockerfile per component (multi-stage, non-root, health checks, pinned base images)
- `docker-compose.yml` for local development (all components + database + dependencies)
- `docker-compose.test.yml` for integration test environment (black-box test runner)
- `.dockerignore`
- CI/CD pipeline file (`.github/workflows/ci.yml` or `azure-pipelines.yml`) with stages from `deployment/ci_cd_pipeline.md`
- Database migration setup and initial seed data scripts
- Observability configuration: structured logging setup, health check endpoints (`/health/live`, `/health/ready`), metrics endpoint (`/metrics`)
- Environment variable documentation (`.env.example`)
- Test structure with unit and integration test locations
**Self-verification**:
- [ ] All components have corresponding folders in the layout
- [ ] All inter-component interfaces have DTOs defined
- [ ] Dockerfile defined for each component
- [ ] `docker-compose.yml` covers all components and dependencies
- [ ] `docker-compose.test.yml` enables black-box integration testing
- [ ] CI/CD pipeline file defined with lint, test, security, build, deploy stages
- [ ] Database migration setup included
- [ ] Health check endpoints specified for each service
- [ ] Structured logging configuration included
- [ ] `.env.example` with all required environment variables
- [ ] Environment strategy covers dev, staging, production
- [ ] Test structure includes unit and integration test locations
**Save action**: Write `01_initial_structure.md` (temporary numeric name)
**Jira action**: Create a Jira ticket for this task under the "Bootstrap & Initial Structure" epic. Write the Jira ticket ID and Epic ID back into the task header.
**Rename action**: Rename the file from `01_initial_structure.md` to `[JIRA-ID]_initial_structure.md` (e.g., `AZ-42_initial_structure.md`). Update the **Task** field inside the file to match the new filename.
**BLOCKING**: Present structure plan summary to user. Do NOT proceed until user confirms.
---
### Step 2: Task Decomposition (all modes)
**Role**: Professional software architect
**Goal**: Decompose each component into atomic, implementable task specs — numbered sequentially starting from 02
**Constraints**: Behavioral specs only — describe what, not how. No implementation code.
**Numbering**: Tasks are numbered sequentially across all components in dependency order. Start from 02 (01 is initial_structure). In single component mode, start from the next available number in TASKS_DIR.
**Component ordering**: Process components in dependency order — foundational components first (shared models, database), then components that depend on them.
For each component (or the single provided component):
1. Read the component's `description.md` and `tests.md` (if available)
2. Decompose into atomic tasks; create only 1 task if the component is simple or atomic
3. Split into multiple tasks only when it is necessary and would be easier to implement
4. Do not create tasks for other components — only tasks for the current component
5. Each task should be atomic, containing 0 APIs or a list of semantically connected APIs
6. Write each task spec using `templates/task.md`
7. Estimate complexity per task (1, 2, 3, 5 points); no task should exceed 5 points — split if it does
8. Note task dependencies (referencing Jira IDs of already-created dependency tasks, e.g., `AZ-42_initial_structure`)
9. **Immediately after writing each task file**: create a Jira ticket, link it to the component's epic, write the Jira ticket ID and Epic ID back into the task header, then rename the file from `[##]_[short_name].md` to `[JIRA-ID]_[short_name].md`.
**Self-verification** (per component):
- [ ] Every task is atomic (single concern)
- [ ] No task exceeds 5 complexity points
- [ ] Task dependencies reference correct Jira IDs
- [ ] Tasks cover all interfaces defined in the component spec
- [ ] No tasks duplicate work from other components
- [ ] Every task has a Jira ticket linked to the correct epic
**Save action**: Write each `[##]_[short_name].md` (temporary numeric name), create Jira ticket inline, then rename the file to `[JIRA-ID]_[short_name].md`. Update the **Task** field inside the file to match the new filename. Update **Dependencies** references in the file to use Jira IDs of the dependency tasks.
---
### Step 3: Integration Test Task Decomposition (default mode only)
**Role**: Professional Quality Assurance Engineer
**Goal**: Decompose integration test specs into atomic, implementable task specs
**Constraints**: Behavioral specs only — describe what, not how. No test code.
**Numbering**: Continue sequential numbering from where Step 2 left off.
1. Read all test specs from `PLANS_DIR/integration_tests/` (functional_tests.md, non_functional_tests.md)
2. Group related test scenarios into atomic tasks (e.g., one task per test category or per component under test)
3. Each task should reference the specific test scenarios it implements and the environment/test_data specs
4. Dependencies: integration test tasks depend on the component implementation tasks they exercise
5. Write each task spec using `templates/task.md`
6. Estimate complexity per task (1, 2, 3, 5 points); no task should exceed 5 points — split if it does
7. Note task dependencies (referencing Jira IDs of already-created dependency tasks)
8. **Immediately after writing each task file**: create a Jira ticket under the "Integration Tests" epic, write the Jira ticket ID and Epic ID back into the task header, then rename the file from `[##]_[short_name].md` to `[JIRA-ID]_[short_name].md`.
**Self-verification**:
- [ ] Every functional test scenario from `integration_tests/functional_tests.md` is covered by a task
- [ ] Every non-functional test scenario from `integration_tests/non_functional_tests.md` is covered by a task
- [ ] No task exceeds 5 complexity points
- [ ] Dependencies correctly reference the component tasks being tested
- [ ] Every task has a Jira ticket linked to the "Integration Tests" epic
**Save action**: Write each `[##]_[short_name].md` (temporary numeric name), create Jira ticket inline, then rename to `[JIRA-ID]_[short_name].md`.
---
### Step 4: Cross-Task Verification (default mode only)
**Role**: Professional software architect and analyst
**Goal**: Verify task consistency and produce `_dependencies_table.md`
**Constraints**: Review step — fix gaps found, do not add new tasks
1. Verify task dependencies across all tasks are consistent
2. Check no gaps: every interface in architecture.md has tasks covering it
3. Check no overlaps: tasks don't duplicate work across components
4. Check no circular dependencies in the task graph
5. Produce `_dependencies_table.md` using `templates/dependencies-table.md`
**Self-verification**:
- [ ] Every architecture interface is covered by at least one task
- [ ] No circular dependencies in the task graph
- [ ] Cross-component dependencies are explicitly noted in affected task specs
- [ ] `_dependencies_table.md` contains every task with correct dependencies
**Save action**: Write `_dependencies_table.md`
**BLOCKING**: Present dependency summary to user. Do NOT proceed until user confirms.
---
## Common Mistakes
- **Coding during decomposition**: this workflow produces specs, never code
- **Over-splitting**: don't create many tasks if the component is simple — 1 task is fine
- **Tasks exceeding 5 points**: split them; no task should be too complex for a single implementer
- **Cross-component tasks**: each task belongs to exactly one component
- **Skipping BLOCKING gates**: never proceed past a BLOCKING marker without user confirmation
- **Creating git branches**: branch creation is an implementation concern, not a decomposition one
- **Creating component subdirectories**: all tasks go flat in TASKS_DIR
- **Forgetting Jira**: every task must have a Jira ticket created inline — do not defer to a separate step
- **Forgetting to rename**: after Jira ticket creation, always rename the file from numeric prefix to Jira ID prefix
## Escalation Rules
| Situation | Action |
|-----------|--------|
| Ambiguous component boundaries | ASK user |
| Task complexity exceeds 5 points after splitting | ASK user |
| Missing component specs in PLANS_DIR | ASK user |
| Cross-component dependency conflict | ASK user |
| Jira epic not found for a component | ASK user for Epic ID |
| Task naming | PROCEED, confirm at next BLOCKING gate |
## Methodology Quick Reference
```
┌────────────────────────────────────────────────────────────────┐
│ Task Decomposition (4-Step Method) │
├────────────────────────────────────────────────────────────────┤
│ CONTEXT: Resolve mode (default / single component) │
│ 1. Bootstrap Structure → [JIRA-ID]_initial_structure.md │
│ [BLOCKING: user confirms structure] │
│ 2. Component Tasks → [JIRA-ID]_[short_name].md each │
│ 3. Integration Tests → [JIRA-ID]_[short_name].md each │
│ 4. Cross-Verification → _dependencies_table.md │
│ [BLOCKING: user confirms dependencies] │
├────────────────────────────────────────────────────────────────┤
│ Principles: Atomic tasks · Behavioral specs · Flat structure │
│ Jira inline · Rename to Jira ID · Save now · Ask don't assume│
└────────────────────────────────────────────────────────────────┘
```
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# Dependencies Table Template
Use this template after cross-task verification. Save as `TASKS_DIR/_dependencies_table.md`.
---
```markdown
# Dependencies Table
**Date**: [YYYY-MM-DD]
**Total Tasks**: [N]
**Total Complexity Points**: [N]
| Task | Name | Complexity | Dependencies | Epic |
|------|------|-----------|-------------|------|
| [JIRA-ID] | initial_structure | [points] | None | [EPIC-ID] |
| [JIRA-ID] | [short_name] | [points] | [JIRA-ID] | [EPIC-ID] |
| [JIRA-ID] | [short_name] | [points] | [JIRA-ID] | [EPIC-ID] |
| [JIRA-ID] | [short_name] | [points] | [JIRA-ID], [JIRA-ID] | [EPIC-ID] |
| ... | ... | ... | ... | ... |
```
---
## Guidelines
- Every task from TASKS_DIR must appear in this table
- Dependencies column lists Jira IDs (e.g., "AZ-43, AZ-44") or "None"
- No circular dependencies allowed
- Tasks should be listed in recommended execution order
- The `/implement` skill reads this table to compute parallel batches
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# Initial Structure Task Template
Use this template for the bootstrap structure plan. Save as `TASKS_DIR/01_initial_structure.md` initially, then rename to `TASKS_DIR/[JIRA-ID]_initial_structure.md` after Jira ticket creation.
---
```markdown
# Initial Project Structure
**Task**: [JIRA-ID]_initial_structure
**Name**: Initial Structure
**Description**: Scaffold the project skeleton — folders, shared models, interfaces, stubs, CI/CD, DB migrations, test structure
**Complexity**: [3|5] points
**Dependencies**: None
**Component**: Bootstrap
**Jira**: [TASK-ID]
**Epic**: [EPIC-ID]
## Project Folder Layout
```
project-root/
├── [folder structure based on tech stack and components]
└── ...
```
### Layout Rationale
[Brief explanation of why this structure was chosen — language conventions, framework patterns, etc.]
## DTOs and Interfaces
### Shared DTOs
| DTO Name | Used By Components | Fields Summary |
|----------|-------------------|---------------|
| [name] | [component list] | [key fields] |
### Component Interfaces
| Component | Interface | Methods | Exposed To |
|-----------|-----------|---------|-----------|
| [name] | [InterfaceName] | [method list] | [consumers] |
## CI/CD Pipeline
| Stage | Purpose | Trigger |
|-------|---------|---------|
| Build | Compile/bundle the application | Every push |
| Lint / Static Analysis | Code quality and style checks | Every push |
| Unit Tests | Run unit test suite | Every push |
| Integration Tests | Run integration test suite | Every push |
| Security Scan | SAST / dependency check | Every push |
| Deploy to Staging | Deploy to staging environment | Merge to staging branch |
### Pipeline Configuration Notes
[Framework-specific notes: CI tool, runners, caching, parallelism, etc.]
## Environment Strategy
| Environment | Purpose | Configuration Notes |
|-------------|---------|-------------------|
| Development | Local development | [local DB, mock services, debug flags] |
| Staging | Pre-production testing | [staging DB, staging services, production-like config] |
| Production | Live system | [production DB, real services, optimized config] |
### Environment Variables
| Variable | Dev | Staging | Production | Description |
|----------|-----|---------|------------|-------------|
| [VAR_NAME] | [value/source] | [value/source] | [value/source] | [purpose] |
## Database Migration Approach
**Migration tool**: [tool name]
**Strategy**: [migration strategy — e.g., versioned scripts, ORM migrations]
### Initial Schema
[Key tables/collections that need to be created, referencing component data access patterns]
## Test Structure
```
tests/
├── unit/
│ ├── [component_1]/
│ ├── [component_2]/
│ └── ...
├── integration/
│ ├── test_data/
│ └── [test files]
└── ...
```
### Test Configuration Notes
[Test runner, fixtures, test data management, isolation strategy]
## Implementation Order
| Order | Component | Reason |
|-------|-----------|--------|
| 1 | [name] | [why first — foundational, no dependencies] |
| 2 | [name] | [depends on #1] |
| ... | ... | ... |
## Acceptance Criteria
**AC-1: Project scaffolded**
Given the structure plan above
When the implementer executes this task
Then all folders, stubs, and configuration files exist
**AC-2: Tests runnable**
Given the scaffolded project
When the test suite is executed
Then all stub tests pass (even if they only assert true)
**AC-3: CI/CD configured**
Given the scaffolded project
When CI pipeline runs
Then build, lint, and test stages complete successfully
```
---
## Guidance Notes
- This is a PLAN document, not code. The `/implement` skill executes it.
- Focus on structure and organization decisions, not implementation details.
- Reference component specs for interface and DTO details — don't repeat everything.
- The folder layout should follow conventions of the identified tech stack.
- Environment strategy should account for secrets management and configuration.
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# Task Specification Template
Create a focused behavioral specification that describes **what** the system should do, not **how** it should be built.
Save as `TASKS_DIR/[##]_[short_name].md` initially, then rename to `TASKS_DIR/[JIRA-ID]_[short_name].md` after Jira ticket creation.
---
```markdown
# [Feature Name]
**Task**: [JIRA-ID]_[short_name]
**Name**: [short human name]
**Description**: [one-line description of what this task delivers]
**Complexity**: [1|2|3|5] points
**Dependencies**: [AZ-43_shared_models, AZ-44_db_migrations] or "None"
**Component**: [component name for context]
**Jira**: [TASK-ID]
**Epic**: [EPIC-ID]
## Problem
Clear, concise statement of the problem users are facing.
## Outcome
- Measurable or observable goal 1
- Measurable or observable goal 2
- ...
## Scope
### Included
- What's in scope for this task
### Excluded
- Explicitly what's NOT in scope
## Acceptance Criteria
**AC-1: [Title]**
Given [precondition]
When [action]
Then [expected result]
**AC-2: [Title]**
Given [precondition]
When [action]
Then [expected result]
## Non-Functional Requirements
**Performance**
- [requirement if relevant]
**Compatibility**
- [requirement if relevant]
**Reliability**
- [requirement if relevant]
## Unit Tests
| AC Ref | What to Test | Required Outcome |
|--------|-------------|-----------------|
| AC-1 | [test subject] | [expected result] |
## Integration Tests
| AC Ref | Initial Data/Conditions | What to Test | Expected Behavior | NFR References |
|--------|------------------------|-------------|-------------------|----------------|
| AC-1 | [setup] | [test subject] | [expected behavior] | [NFR if any] |
## Constraints
- [Architectural pattern constraint if critical]
- [Technical limitation]
- [Integration requirement]
## Risks & Mitigation
**Risk 1: [Title]**
- *Risk*: [Description]
- *Mitigation*: [Approach]
```
---
## Complexity Points Guide
- 1 point: Trivial, self-contained, no dependencies
- 2 points: Non-trivial, low complexity, minimal coordination
- 3 points: Multi-step, moderate complexity, potential alignment needed
- 5 points: Difficult, interconnected logic, medium-high risk
- 8 points: Too complex — split into smaller tasks
## Output Guidelines
**DO:**
- Focus on behavior and user experience
- Use clear, simple language
- Keep acceptance criteria testable (Gherkin format)
- Include realistic scope boundaries
- Write from the user's perspective
- Include complexity estimation
- Reference dependencies by Jira ID (e.g., AZ-43_shared_models)
**DON'T:**
- Include implementation details (file paths, classes, methods)
- Prescribe technical solutions or libraries
- Add architectural diagrams or code examples
- Specify exact API endpoints or data structures
- Include step-by-step implementation instructions
- Add "how to build" guidance