# PRD > Use when a feature needs written requirements before anyone starts building it. Generate a Product Requirements Document (PRD) for a new feature. Use when planning a feature, starting a new project, or when asked to create a PRD. Triggers on: create a prd, write prd for, plan this feature, requirements for, spec out. ## Facts - Type: Agent skill - Discipline: Product - Author: Ryan Carson (https://github.com/snarktank) - Upstream: https://github.com/snarktank/ralph/tree/main/skills/prd - Source file: https://raw.githubusercontent.com/snarktank/ralph/main/skills/prd/SKILL.md (7223 bytes, sha256:f5395f014448e1e970cac40b8f814949b7fdbfe0b6db6be275be750895e955ca) - Licence: MIT - Upstream copy last changed: 2026-09-17 - Status: listed, not yet ruled on by the curator ## Use it I want to use the PRD skill by Ryan Carson. This is what it does, in the author's own words: Generate a Product Requirements Document (PRD) for a new feature. Use when planning a feature, starting a new project, or when asked to create a PRD. Triggers on: create a prd, write prd for, plan this feature, requirements for, spec out. Download the whole folder at https://github.com/snarktank/ralph/tree/main/skills/prd, SKILL.md and every file beside it, into your skills directory: ~/.claude/skills/prd/ for Claude Code, ~/.agents/skills/prd/ for Codex, ~/.cursor/skills/prd/ for Cursor. Get it from the author's repo, not from startupskills.dev. Then tell me the path you installed it to and how to invoke it. Nothing here is vendored: install from the author's repo, not from this site. A verbatim copy of the author's file follows for reading, under the licence reproduced after it; the current file is in the author's repo. ## Links - Page: https://startupskills.dev/snarktank/prd - Author: https://startupskills.dev/snarktank - Index: https://startupskills.dev/llms.txt ## The file itself --- name: prd description: "Generate a Product Requirements Document (PRD) for a new feature. Use when planning a feature, starting a new project, or when asked to create a PRD. Triggers on: create a prd, write prd for, plan this feature, requirements for, spec out." user-invocable: true --- # PRD Generator Create detailed Product Requirements Documents that are clear, actionable, and suitable for implementation. --- ## The Job 1. Receive a feature description from the user 2. Ask 3-5 essential clarifying questions (with lettered options) 3. Generate a structured PRD based on answers 4. Save to `tasks/prd-[feature-name].md` **Important:** Do NOT start implementing. Just create the PRD. --- ## Step 1: Clarifying Questions Ask only critical questions where the initial prompt is ambiguous. Focus on: - **Problem/Goal:** What problem does this solve? - **Core Functionality:** What are the key actions? - **Scope/Boundaries:** What should it NOT do? - **Success Criteria:** How do we know it's done? ### Format Questions Like This: ``` 1. What is the primary goal of this feature? A. Improve user onboarding experience B. Increase user retention C. Reduce support burden D. Other: [please specify] 2. Who is the target user? A. New users only B. Existing users only C. All users D. Admin users only 3. What is the scope? A. Minimal viable version B. Full-featured implementation C. Just the backend/API D. Just the UI ``` This lets users respond with "1A, 2C, 3B" for quick iteration. Remember to indent the options. --- ## Step 2: PRD Structure Generate the PRD with these sections: ### 1. Introduction/Overview Brief description of the feature and the problem it solves. ### 2. Goals Specific, measurable objectives (bullet list). ### 3. User Stories Each story needs: - **Title:** Short descriptive name - **Description:** "As a [user], I want [feature] so that [benefit]" - **Acceptance Criteria:** Verifiable checklist of what "done" means Each story should be small enough to implement in one focused session. **Format:** ```markdown ### US-001: [Title] **Description:** As a [user], I want [feature] so that [benefit]. **Acceptance Criteria:** - [ ] Specific verifiable criterion - [ ] Another criterion - [ ] Typecheck/lint passes - [ ] **[UI stories only]** Verify in browser using dev-browser skill ``` **Important:** - Acceptance criteria must be verifiable, not vague. "Works correctly" is bad. "Button shows confirmation dialog before deleting" is good. - **For any story with UI changes:** Always include "Verify in browser using dev-browser skill" as acceptance criteria. This ensures visual verification of frontend work. ### 4. Functional Requirements Numbered list of specific functionalities: - "FR-1: The system must allow users to..." - "FR-2: When a user clicks X, the system must..." Be explicit and unambiguous. ### 5. Non-Goals (Out of Scope) What this feature will NOT include. Critical for managing scope. ### 6. Design Considerations (Optional) - UI/UX requirements - Link to mockups if available - Relevant existing components to reuse ### 7. Technical Considerations (Optional) - Known constraints or dependencies - Integration points with existing systems - Performance requirements ### 8. Success Metrics How will success be measured? - "Reduce time to complete X by 50%" - "Increase conversion rate by 10%" ### 9. Open Questions Remaining questions or areas needing clarification. --- ## Writing for Junior Developers The PRD reader may be a junior developer or AI agent. Therefore: - Be explicit and unambiguous - Avoid jargon or explain it - Provide enough detail to understand purpose and core logic - Number requirements for easy reference - Use concrete examples where helpful --- ## Output - **Format:** Markdown (`.md`) - **Location:** `tasks/` - **Filename:** `prd-[feature-name].md` (kebab-case) --- ## Example PRD ```markdown # PRD: Task Priority System ## Introduction Add priority levels to tasks so users can focus on what matters most. Tasks can be marked as high, medium, or low priority, with visual indicators and filtering to help users manage their workload effectively. ## Goals - Allow assigning priority (high/medium/low) to any task - Provide clear visual differentiation between priority levels - Enable filtering and sorting by priority - Default new tasks to medium priority ## User Stories ### US-001: Add priority field to database **Description:** As a developer, I need to store task priority so it persists across sessions. **Acceptance Criteria:** - [ ] Add priority column to tasks table: 'high' | 'medium' | 'low' (default 'medium') - [ ] Generate and run migration successfully - [ ] Typecheck passes ### US-002: Display priority indicator on task cards **Description:** As a user, I want to see task priority at a glance so I know what needs attention first. **Acceptance Criteria:** - [ ] Each task card shows colored priority badge (red=high, yellow=medium, gray=low) - [ ] Priority visible without hovering or clicking - [ ] Typecheck passes - [ ] Verify in browser using dev-browser skill ### US-003: Add priority selector to task edit **Description:** As a user, I want to change a task's priority when editing it. **Acceptance Criteria:** - [ ] Priority dropdown in task edit modal - [ ] Shows current priority as selected - [ ] Saves immediately on selection change - [ ] Typecheck passes - [ ] Verify in browser using dev-browser skill ### US-004: Filter tasks by priority **Description:** As a user, I want to filter the task list to see only high-priority items when I'm focused. **Acceptance Criteria:** - [ ] Filter dropdown with options: All | High | Medium | Low - [ ] Filter persists in URL params - [ ] Empty state message when no tasks match filter - [ ] Typecheck passes - [ ] Verify in browser using dev-browser skill ## Functional Requirements - FR-1: Add `priority` field to tasks table ('high' | 'medium' | 'low', default 'medium') - FR-2: Display colored priority badge on each task card - FR-3: Include priority selector in task edit modal - FR-4: Add priority filter dropdown to task list header - FR-5: Sort by priority within each status column (high to medium to low) ## Non-Goals - No priority-based notifications or reminders - No automatic priority assignment based on due date - No priority inheritance for subtasks ## Technical Considerations - Reuse existing badge component with color variants - Filter state managed via URL search params - Priority stored in database, not computed ## Success Metrics - Users can change priority in under 2 clicks - High-priority tasks immediately visible at top of lists - No regression in task list performance ## Open Questions - Should priority affect task ordering within a column? - Should we add keyboard shortcuts for priority changes? ``` --- ## Checklist Before saving the PRD: - [ ] Asked clarifying questions with lettered options - [ ] Incorporated user's answers - [ ] User stories are small and specific - [ ] Functional requirements are numbered and unambiguous - [ ] Non-goals section defines clear boundaries - [ ] Saved to `tasks/prd-[feature-name].md` ## Licence of the file above The file above is https://raw.githubusercontent.com/snarktank/ralph/main/skills/prd/SKILL.md, by Ryan Carson, reproduced without changes. - Source: https://github.com/snarktank/ralph/tree/main/skills/prd - Copyright: Copyright (c) 2026 snarktank - Licence: MIT, https://raw.githubusercontent.com/snarktank/ralph/main/LICENSE The repo's licence file, verbatim from https://raw.githubusercontent.com/snarktank/ralph/main/LICENSE: MIT License Copyright (c) 2026 snarktank Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.