nxs-generate-tasks - SKILL.md Agent Skill

name: nxs-generate-tasks description: Generate task files from decomposer output and architect responses. Use when you need to create TASK-*.md files from structured JSON containing task metadata and LLD content. model: haiku

NXS Generate Tasks

Generate TASK-*.md files from structured JSON input containing task metadata and architect responses.

Usage

python ./scripts/generate_task_files.py <input.json> [--dry-run]

Arguments:

input.json - Path to JSON file containing epic metadata and tasks array
--dry-run - Preview what would be generated without writing files

Input JSON Schema

{
  "epic_number": 7,
  "epic_title": "Core Layout Shell & Sidebar",
  "epic_type": "enhancement",
  "output_dir": "docs/features/layout/01-core-layout-shell-sidebar/tasks",
  "tasks": [
    {
      "sequence": 1,
      "title": "Create Jotai state atoms",
      "category": "Data Layer",
      "summary": "Initialize state management for layout...",
      "effort": "S",
      "labels": ["frontend", "state"],
      "blocked_by": [],
      "blocks": [2, 3],
      "architect_response": "### Files\n\n- `src/store/atoms.ts`..."
    }
  ]
}

Field descriptions:

Field	Required	Description
`epic_number`	Yes	GitHub issue number for the parent epic
`epic_title`	Yes	Epic title (used for branch naming)
`epic_type`	Yes	`"enhancement"` or `"bug"` (determines branch prefix)
`output_dir`	Yes	Directory to write task files
`tasks`	Yes	Array of task objects
`tasks[].sequence`	Yes	Task sequence number (1, 2, 3...)
`tasks[].title`	Yes	Concise task title
`tasks[].category`	Yes	Phase category (Infrastructure, Data Layer, etc.)
`tasks[].summary`	Yes	One paragraph task description
`tasks[].effort`	Yes	Size estimate (XS, S, M)
`tasks[].labels`	Yes	Array of GitHub labels
`tasks[].blocked_by`	Yes	Array of sequence numbers this task depends on
`tasks[].blocks`	Yes	Array of sequence numbers this task unblocks
`tasks[].architect_response`	No	Markdown from nxs-architect LLD elaboration

Architect Response Format

The architect_response field should contain markdown with these sections:

### Files

- `path/to/file.ts` - Description of changes

### Interfaces/Types

\`\`\`typescript
export interface Example { ... }
\`\`\`

### Key Decisions

| Decision | Rationale | Alternatives |
| -------- | --------- | ------------ |
| ...      | ...       | ...          |

### Implementation Notes

Patterns, edge cases, algorithms...

### Acceptance Criteria

- [ ] Criterion 1
- [ ] Criterion 2

If architect_response is missing or sections are incomplete, fallback content is used.

Output

Creates TASK-{epic}.{seq}.md files in the output directory using the template at docs/system/delivery/task-template.md.

Returns JSON summary to stdout:

{
  "status": "success",
  "tasks_generated": 5,
  "output_dir": "docs/features/.../tasks",
  "files": ["TASK-7.01.md", "TASK-7.02.md"],
  "fallbacks_used": 1,
  "invalid_labels": 0
}

Notes:

Labels are validated against docs/system/delivery/task-labels.md if it exists
Invalid labels are reported as warnings to stderr and counted in invalid_labels

Template Variables

The script computes and substitutes these template variables:

Variable	Derivation
`{{EPIC}}`	`epic_number`
`{{SEQ}}`	Sequence zero-padded to 2 digits
`{{TITLE}}`	Task title
`{{LABELS}}`	Labels joined with `,`
`{{PARENT}}`	`#{epic_number}`
`{{SUMMARY}}`	Task summary
`{{BLOCKED_BY}}`	Formatted dependencies or "None"
`{{BLOCKS}}`	Formatted dependents or "None"
`{{WORKSPACE_PATH}}`	`../{repo-name}-worktrees/{epic_number}`
`{{BRANCH}}`	`{type}/{epic_number}-{kebab-title}`
`{{EFFORT_ESTIMATE}}`	Mapped from effort size
`{{FILES}}`	From architect or fallback
`{{INTERFACES}}`	From architect or fallback
`{{KEY_DECISIONS}}`	From architect or fallback
`{{IMPLEMENTATION_NOTES}}`	From architect or fallback
`{{ACCEPTANCE_CRITERIA}}`	From architect or fallback

Examples

# Preview task generation
python ./scripts/generate_task_files.py /tmp/tasks-input.json --dry-run

# Generate task files
python ./scripts/generate_task_files.py /tmp/tasks-input.json

Prerequisites

Python 3.10+
Task template at docs/system/delivery/task-template.md