Spec to Implementation
Turn product specs into actionable Notion tasks with implementation plans.
Installation
- Make sure Claude is on your device and in your terminal.
Skills load from
~/.claude/skills/when Claude Code starts up — so you need it on your machine first. If you don't have it yet, install it once with the command below, then runclaudein any terminal to verify.One-time setupnpm i -g @anthropic-ai/claude-codeAlready have it? Skip ahead.
- Paste into Claude Code or into your terminal.
This copies the whole skill folder into
~/.claude/skills/notion-spec-to-implementation-prat011/— the SKILL.md plus any scripts, reference docs, or templates the skill ships with. Safe default: works for every skill.Faster alternative (instruction-only skills)
Skips the clone and grabs only the SKILL.md file. Don't use this if the skill ships Python scripts, reference markdowns, or asset templates — they won't be downloaded and the skill will fail when it tries to load them.
Quick install (SKILL.md only)Sign up to copy - Restart Claude Code.
Quit and reopen Claude Code (or any other agent that loads from
~/.claude/skills/). New skills are picked up on startup. - Just ask Claude.
Skills auto-activate when your request matches the skill's description — no slash command needed. Trigger phrases live in the skill's own frontmatter; you can read them in the “What this skill does” section above.
Prefer to read the source first? Open on GitHub.
When Claude uses it
Turns product or tech specs into concrete Notion tasks that Claude code can implement. Breaks down spec pages into detailed implementation plans with clear tasks, acceptance criteria, and progress tracking to guide development from requirements to completion.
What this skill does
Spec to Implementation
Transforms specifications into actionable implementation plans with progress tracking. Fetches spec documents, extracts requirements, breaks down into tasks, and manages implementation workflow.
Quick Start
When asked to implement a specification:
- Find spec: Use
Notion:notion-searchto locate specification page - Fetch spec: Use
Notion:notion-fetchto read specification content - Extract requirements: Parse and structure requirements from spec
- Create plan: Use
Notion:notion-create-pagesfor implementation plan - Find task database: Use
Notion:notion-searchto locate tasks database - Create tasks: Use
Notion:notion-create-pagesfor individual tasks in task database - Track progress: Use
Notion:notion-update-pageto log progress and update status
Implementation Workflow
Step 1: Find the specification
1. Search for spec:
- Use Notion:notion-search with spec name or topic
- Apply filters if needed (e.g., created_date_range, teamspace_id)
- Look for spec title or keyword matches
- If not found or ambiguous, ask user for spec URL/ID
Example searches:
- "User Authentication spec"
- "Payment Integration specification"
- "Mobile App Redesign PRD"
Step 2: Fetch and analyze specification
1. Fetch spec page:
- Use Notion:notion-fetch with spec URL/ID from search results
- Read full content including requirements, design, constraints
2. Parse specification:
- Identify functional requirements
- Note non-functional requirements (performance, security, etc.)
- Extract acceptance criteria
- Identify dependencies and blockers
See reference/spec-parsing.md for parsing patterns.
Step 3: Create implementation plan
1. Break down into phases/milestones
2. Identify technical approach
3. List required tasks
4. Estimate effort
5. Identify risks
Use implementation plan template (see [reference/standard-implementation-plan.md](reference/standard-implementation-plan.md) or [reference/quick-implementation-plan.md](reference/quick-implementation-plan.md))
Step 4: Create implementation plan page
Use Notion:notion-create-pages:
- Title: "Implementation Plan: [Feature Name]"
- Content: Structured plan with phases, tasks, timeline
- Link back to original spec
- Add to appropriate location (project page, database)
Step 5: Find task database
1. Search for task database:
- Use Notion:notion-search to find "Tasks" or "Task Management" database
- Look for engineering/project task tracking system
- If not found or ambiguous, ask user for database location
2. Fetch database schema:
- Use Notion:notion-fetch with database URL/ID
- Get property names, types, and options
- Identify correct data source from <data-source> tags
- Note required properties for new tasks
Step 6: Create implementation tasks
For each task in plan:
1. Create task in task database using Notion:notion-create-pages
2. Use parent: { data_source_id: 'collection://...' }
3. Set properties from schema:
- Name/Title: Task description
- Status: To Do
- Priority: Based on criticality
- Related Tasks: Link to spec and plan
4. Add implementation details in content
See reference/task-creation.md for task patterns.
Step 7: Begin implementation
1. Update task status to "In Progress"
2. Add initial progress note
3. Document approach and decisions
4. Link relevant resources
Step 8: Track progress
Regular updates:
1. Update task properties (status, progress)
2. Add progress notes with:
- What's completed
- Current focus
- Blockers/issues
3. Update implementation plan with milestone completion
4. Link to related work (PRs, designs, etc.)
See reference/progress-tracking.md for tracking patterns.
Spec Analysis Patterns
Functional Requirements: User stories, feature descriptions, workflows, data requirements, integration points
Non-Functional Requirements: Performance targets, security requirements, scalability needs, availability, compliance
Acceptance Criteria: Testable conditions, user validation points, performance benchmarks, completion definitions
See reference/spec-parsing.md for detailed parsing techniques.
Implementation Plan Structure
Plan includes: Overview → Linked Spec → Requirements Summary → Technical Approach → Implementation Phases (Goal, Tasks checklist, Estimated effort) → Dependencies → Risks & Mitigation → Timeline → Success Criteria
See reference/standard-implementation-plan.md for full plan template.
Task Breakdown Patterns
By Component: Database, API endpoints, frontend components, integration, testing By Feature Slice: Vertical slices (auth flow, data entry, report generation) By Priority: P0 (must have), P1 (important), P2 (nice to have)
Progress Logging
Daily Updates (active work): Add progress note with completed items, current focus, blockers Milestone Updates (major progress): Update plan checkboxes, add milestone summary, adjust timeline Status Changes (task transitions): Update properties (In Progress → In Review → Done), add completion notes, link deliverables
Progress Format: Date heading → Completed → In Progress → Next Steps → Blockers → Notes
See reference/progress-tracking.md for detailed patterns.
Linking Spec to Implementation
Forward Links: Update spec page with "Implementation" section linking to plan and tasks Backward Links: Reference spec in plan and tasks with "Specification" section Bidirectional Traceability: Maintain both directions for easy tracking
Implementation Status Tracking
Plan Status: Update with phase completion (✅ Complete, 🔄 In Progress %, ⏳ Not Started) and overall percentage Task Aggregation: Query task database by plan ID to generate summary (complete, in progress, blocked, not started)
Handling Spec Changes
Detection: Fetch updated spec → compare with plan → identify new requirements → assess impact Propagation: Update plan → create new tasks → update affected tasks → add change note → notify via comments Change Log: Track spec evolution with date, what changed, and impact
Common Patterns
Feature Flag: Backend (behind flag) → Testing → Frontend (flagged) → Internal rollout → External rollout Database Migration: Schema design → Migration script → Staging test → Production migration → Validation API Development: API design → Backend implementation → Testing & docs → Client integration → Deployment
Best Practices
- Always link spec and implementation: Maintain bidirectional references
- Break down into small tasks: Each task should be completable in 1-2 days
- Extract clear acceptance criteria: Know when "done" is done
- Identify dependencies early: Note blockers in plan
- Update progress regularly: Daily notes for active work
- Track changes: Document spec updates and their impact
- Use checklists: Visual progress indicators help everyone
- Link deliverables: PRs, designs, docs should link back to tasks
Advanced Features
For additional implementation patterns and techniques, see the reference files in reference/.
Common Issues
"Can't find spec": Use Notion:notion-search with spec name/topic, try broader terms, or ask user for URL "Multiple specs found": Ask user which spec to implement or show options "Can't find task database": Search for "Tasks" or "Task Management", or ask user for database location "Spec unclear": Note ambiguities in plan, create clarification tasks "Requirements conflicting": Document conflicts, create decision task "Scope too large": Break into smaller specs/phases
Examples
See examples/ for complete workflows:
- examples/api-feature.md - API feature implementation
- examples/ui-component.md - Frontend component
- examples/database-migration.md - Schema changes
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