
Update Implementation Plan
- 10.8k installs
- 37.1k repo stars
- Updated July 28, 2026
- github/awesome-copilot
A structured implementation plan document that translates requirements into discrete, executable phases with atomic tasks, dependencies, test criteria, and risk mitigation for AI-to-AI or human execution.
About
This skill updates existing implementation plan files by accepting new or changed requirements and regenerating the plan in a standardized, AI-optimized markdown format. Developers use it when refactoring code, adding features, upgrading packages, or evolving architecture and infrastructure. The skill enforces a mandatory template with front matter, requirements, discrete phases with atomic tasks, alternatives, dependencies, affected files, tests, risks, and assumptions. All output is deterministic and machine-parseable, designed for autonomous execution by AI agents or humans without cross-phase blockers unless explicitly declared.
- Generates fully executable implementation plans with atomic, parallelizable tasks and measurable completion criteria
- Enforces strict markdown template with front matter, phase goals, task tables, and status badges (Completed/In progress/
- Uses standardized identifier prefixes (REQ-, TASK-, GOAL-, etc.) for deterministic parsing by AI agents
- Includes explicit file paths, function names, dependencies, test requirements, and risk/assumption tracking
- Outputs to /plan/ directory with naming convention: [purpose]-[component]-[version].md (e.g., feature-auth-module-1.md)
Update Implementation Plan by the numbers
- 10,779 all-time installs (skills.sh)
- +135 installs in the week ending Jul 28, 2026 (Skillselion tracking)
- Ranked #93 of 3,301 Productivity & Planning skills by installs in the Skillselion catalog
- Security screen: HIGH risk (skills.sh audit)
- Data as of Jul 28, 2026 (Skillselion catalog sync)
update-implementation-plan capabilities & compatibility
- Capabilities
- parse and update existing implementation plan fi · generate phase based task decomposition with ato · validate template compliance and identifier form · track task completion status with dates · document dependencies, alternatives, risks, and · output deterministic, machine parseable markdown
- Use cases
- planning · project management · documentation · refactoring · api development
- Platforms
- macOS · Windows · Linux · WSL
- Runs
- Runs locally
- Pricing
- Free
What update-implementation-plan says it does
Plans must consist of discrete, atomic phases containing executable tasks. Each phase must be independently processable by AI agents or humans without cross-phase dependencies unless explicitly declar
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| Installs | 10.8k |
|---|---|
| repo stars | ★ 37.1k |
| Security audit | 2 / 3 scanners passed |
| Last updated | July 28, 2026 |
| Repository | github/awesome-copilot ↗ |
What it does
Update implementation plan files with new requirements, features, refactoring tasks, or infrastructure changes in structured, machine-readable format.
Who is it for?
Feature development, code refactoring, package upgrades, architecture evolution, infrastructure changes, and any project requiring AI-agent-friendly task decomposition with explicit dependencies and measurable completion
Skip if: Real-time task management, lightweight or ad-hoc feature notes, burn-down tracking, or projects that do not require machine-parseable execution plans.
When should I use this skill?
A new requirement arrives, existing code needs refactoring, packages require upgrades, architecture or infrastructure changes are needed, or a plan needs updating with revised scope or constraints.
What you get
A completed, validated markdown implementation plan file in /plan/ directory with clear phase architecture, atomic tasks, completion criteria, and all supporting metadata needed for autonomous or human execution.
- Markdown implementation plan file with complete template compliance
- Front matter with goal, version, date, owner, status, and tags
- Requirements & constraints section with standardized prefixes
By the numbers
- Mandatory template enforces 8 core sections (Introduction, Requirements, Implementation Steps, Alternatives, Dependencie
- Task identifiers use 3-letter prefixes (REQ-, TASK-, GOAL-, etc.) with numeric suffixes for deterministic parsing
- Status field supports 5 distinct states with corresponding badge colors (Completed green, In progress yellow, Planned bl
Files
Update Implementation Plan
Primary Directive
You are an AI agent tasked with updating the implementation plan file ${file} based on new or updated requirements. Your output must be machine-readable, deterministic, and structured for autonomous execution by other AI systems or humans.
Execution Context
This prompt is designed for AI-to-AI communication and automated processing. All instructions must be interpreted literally and executed systematically without human interpretation or clarification.
Core Requirements
- Generate implementation plans that are fully executable by AI agents or humans
- Use deterministic language with zero ambiguity
- Structure all content for automated parsing and execution
- Ensure complete self-containment with no external dependencies for understanding
Plan Structure Requirements
Plans must consist of discrete, atomic phases containing executable tasks. Each phase must be independently processable by AI agents or humans without cross-phase dependencies unless explicitly declared.
Phase Architecture
- Each phase must have measurable completion criteria
- Tasks within phases must be executable in parallel unless dependencies are specified
- All task descriptions must include specific file paths, function names, and exact implementation details
- No task should require human interpretation or decision-making
AI-Optimized Implementation Standards
- Use explicit, unambiguous language with zero interpretation required
- Structure all content as machine-parseable formats (tables, lists, structured data)
- Include specific file paths, line numbers, and exact code references where applicable
- Define all variables, constants, and configuration values explicitly
- Provide complete context within each task description
- Use standardized prefixes for all identifiers (REQ-, TASK-, etc.)
- Include validation criteria that can be automatically verified
Output File Specifications
- Save implementation plan files in
/plan/directory - Use naming convention:
[purpose]-[component]-[version].md - Purpose prefixes:
upgrade|refactor|feature|data|infrastructure|process|architecture|design - Example:
upgrade-system-command-4.md,feature-auth-module-1.md - File must be valid Markdown with proper front matter structure
Mandatory Template Structure
All implementation plans must strictly adhere to the following template. Each section is required and must be populated with specific, actionable content. AI agents must validate template compliance before execution.
Template Validation Rules
- All front matter fields must be present and properly formatted
- All section headers must match exactly (case-sensitive)
- All identifier prefixes must follow the specified format
- Tables must include all required columns
- No placeholder text may remain in the final output
Status
The status of the implementation plan must be clearly defined in the front matter and must reflect the current state of the plan. The status can be one of the following (status_color in brackets): Completed (bright green badge), In progress (yellow badge), Planned (blue badge), Deprecated (red badge), or On Hold (orange badge). It should also be displayed as a badge in the introduction section.
---
goal: [Concise Title Describing the Package Implementation Plan's Goal]
version: [Optional: e.g., 1.0, Date]
date_created: [YYYY-MM-DD]
last_updated: [Optional: YYYY-MM-DD]
owner: [Optional: Team/Individual responsible for this spec]
status: 'Completed'|'In progress'|'Planned'|'Deprecated'|'On Hold'
tags: [Optional: List of relevant tags or categories, e.g., `feature`, `upgrade`, `chore`, `architecture`, `migration`, `bug` etc]
---
# Introduction

[A short concise introduction to the plan and the goal it is intended to achieve.]
## 1. Requirements & Constraints
[Explicitly list all requirements & constraints that affect the plan and constrain how it is implemented. Use bullet points or tables for clarity.]
- **REQ-001**: Requirement 1
- **SEC-001**: Security Requirement 1
- **[3 LETTERS]-001**: Other Requirement 1
- **CON-001**: Constraint 1
- **GUD-001**: Guideline 1
- **PAT-001**: Pattern to follow 1
## 2. Implementation Steps
### Implementation Phase 1
- GOAL-001: [Describe the goal of this phase, e.g., "Implement feature X", "Refactor module Y", etc.]
| Task | Description | Completed | Date |
|------|-------------|-----------|------|
| TASK-001 | Description of task 1 | ✅ | 2025-04-25 |
| TASK-002 | Description of task 2 | | |
| TASK-003 | Description of task 3 | | |
### Implementation Phase 2
- GOAL-002: [Describe the goal of this phase, e.g., "Implement feature X", "Refactor module Y", etc.]
| Task | Description | Completed | Date |
|------|-------------|-----------|------|
| TASK-004 | Description of task 4 | | |
| TASK-005 | Description of task 5 | | |
| TASK-006 | Description of task 6 | | |
## 3. Alternatives
[A bullet point list of any alternative approaches that were considered and why they were not chosen. This helps to provide context and rationale for the chosen approach.]
- **ALT-001**: Alternative approach 1
- **ALT-002**: Alternative approach 2
## 4. Dependencies
[List any dependencies that need to be addressed, such as libraries, frameworks, or other components that the plan relies on.]
- **DEP-001**: Dependency 1
- **DEP-002**: Dependency 2
## 5. Files
[List the files that will be affected by the feature or refactoring task.]
- **FILE-001**: Description of file 1
- **FILE-002**: Description of file 2
## 6. Testing
[List the tests that need to be implemented to verify the feature or refactoring task.]
- **TEST-001**: Description of test 1
- **TEST-002**: Description of test 2
## 7. Risks & Assumptions
[List any risks or assumptions related to the implementation of the plan.]
- **RISK-001**: Risk 1
- **ASSUMPTION-001**: Assumption 1
## 8. Related Specifications / Further Reading
[Link to related spec 1]
[Link to relevant external documentation]Related skills
How it compares
Use update-implementation-plan instead of creating a new plan from scratch when an existing plan file already tracks project state and only requirements changed.
FAQ
What makes this plan format AI-optimized?
Uses standardized identifier prefixes (REQ-, TASK-, GOAL-), explicit file paths and line numbers, deterministic language with zero ambiguity, machine-parseable tables, and atomic tasks that AI agents can validate and execute autonomously without human interpretation.
Can tasks in a phase run in parallel?
Yes. Tasks within a phase are independently processable in parallel unless explicit cross-phase dependencies are declared. Each task includes measurable completion criteria for validation.
What file naming convention is required?
Plans are saved to /plan/ directory as [purpose]-[component]-[version].md, where purpose is one of: upgrade, refactor, feature, data, infrastructure, process, architecture, or design (e.g., feature-auth-module-1.md).
Is Update Implementation Plan safe to install?
skills.sh reports 2 of 3 security scanners passed. Review the Security Audits panel on this page before installing in production.