About

Imported from terminalskills/skills (skills/prd-to-plan/SKILL.md). Install upstream with npx skills add terminalskills/skills --skill prd-to-plan. Copyright stays with the author (Apache-2.0).

PRD to Plan

Name: prd-to-plan
Author: terminalskills

Break a PRD into a phased implementation plan using vertical slices (tracer bullets). Output is a Markdown file in ./plans/.

Process

1. Confirm the PRD is in context

The PRD should already be in the conversation. If it isn't, ask the user to paste it or point you to the file.

2. Explore the codebase

If you have not already explored the codebase, do so to understand the current architecture, existing patterns, and integration layers.

3. Identify durable architectural decisions

Before slicing, identify high-level decisions that are unlikely to change throughout implementation:

Route structures / URL patterns
Database schema shape
Key data models
Authentication / authorization approach
Third-party service boundaries

These go in the plan header so every phase can reference them.

4. Draft vertical slices

Break the PRD into tracer bullet phases. Each phase is a thin vertical slice that cuts through ALL integration layers end-to-end, NOT a horizontal slice of one layer.

5. Quiz the user

Present the proposed breakdown as a numbered list. For each phase show:

Title: short descriptive name
User stories covered: which user stories from the PRD this addresses

Ask the user:

Does the granularity feel right? (too coarse / too fine)
Should any phases be merged or split further?

Iterate until the user approves the breakdown.

6. Write the plan file

Create ./plans/ if it doesn't exist. Write the plan as a Markdown file named after the feature (e.g. ./plans/user-onboarding.md). Use the template below.

Source PRD:

Architectural decisions

Durable decisions that apply across all phases:

Routes: ...
Schema: ...
Key models: ...
(add/remove sections as appropriate)

Phase 1:

User stories:

What to build

A concise description of this vertical slice. Describe the end-to-end behavior, not layer-by-layer implementation.

Acceptance criteria

Criterion 1
Criterion 2
Criterion 3

Phase 2:

User stories:

What to build

...

Acceptance criteria

...

Use it

Copy one of these into your project. Installing also returns the manifest and these snippets.

yaml

targets:
  - https://api.opensmartroute.ai/api/v1/registry/terminalskills-skills-prd-to-plan/manifest   # or paste the manifest below

Manifest

An Open Capability Manifest: the router reads it to know what this does, what it costs and when to pick it.

terminalskills-skills-prd-to-plan.ocm.jsonjson

{
  "ocm": "1",
  "id": "terminalskills-skills-prd-to-plan",
  "kind": "skill",
  "name": "prd-to-plan",
  "description": "Turn a PRD into a multi-phase implementation plan using tracer-bullet vertical slices, saved as a local Markdown file in ./plans/. Use when: user wants to break down a PRD, create an implementation plan, plan phases from a PRD, or mentions \"tracer bullets\".",
  "publisher": "terminalskills",
  "version": "1.0.0",
  "capabilities": {
    "domains": [
      "general"
    ],
    "tags": [
      "skill-md",
      "prd",
      "planning",
      "vertical-slices",
      "tracer-bullets",
      "implementation-plan",
      "skills-sh"
    ],
    "languages": [
      "en"
    ]
  },
  "quality_prior": 0.6,
  "examples": [
    "Turn a PRD into a multi-phase implementation plan using tracer-bullet vertical slices, saved as a local Markdown file in ./plans/. Use when: user wants to break down a PRD, create an implementation plan, plan phases from a PRD, or mentions \"tracer bullets\"."
  ],
  "primary": false,
  "metadata": {
    "source": {
      "provider": "skills.sh",
      "repository": "https://github.com/terminalskills/skills",
      "path": "skills/prd-to-plan/SKILL.md",
      "ref": "HEAD",
      "url": "https://github.com/terminalskills/skills/blob/HEAD/skills/prd-to-plan/SKILL.md",
      "key": "terminalskills/skills/skills/prd-to-plan/SKILL.md"
    },
    "compatibility": "Claude Code, any AI coding agent",
    "license": "Apache-2.0"
  },
  "instructions": "# PRD to Plan\n\nBreak a PRD into a phased implementation plan using vertical slices (tracer bullets). Output is a Markdown file in `./plans/`.\n\n## Process\n\n### 1. Confirm the PRD is in context\n\nThe PRD should already be in the conversation. If it isn't, ask the user to paste it or point you to the file.\n\n### 2. Explore the codebase\n\nIf you have not already explored the codebase, do so to understand the current architecture, existing patterns, and integration layers.\n\n### 3. Identify durable architectural decisions\n\nBefore slicing, identify high-level decisions that are unlikely to change throug",
  "cost": {
    "context_tokens": 690
  }
}

Fetch it by URL: GET /api/v1/registry/terminalskills-skills-prd-to-plan/manifest?version=1.0.0

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