Spec-Kit Constitution
Create or update the project constitution at .specify/memory/constitution.md. This file defines the governing principles, constraints, and governance rules for specification-driven development.
Scope - What Constitution Contains
MUST contain:
- Project governance principles (high-level, technology-agnostic)
- Non-negotiable development rules
- Quality standards and expectations
- Amendment procedures and versioning policy
- Compliance review expectations
MUST NOT contain:
- Technology stack (languages, frameworks, databases) - belongs in
/speckit-03-plan
- Implementation details - belongs in
/speckit-03-plan
- Specific tools or versions - belongs in
/speckit-03-plan
- API designs or data models - belongs in
/speckit-03-plan
The constitution defines the "laws" of the project. The plan defines how to implement features within those laws.
User Input
$ARGUMENTS
You MUST consider the user input before proceeding (if not empty).
Prerequisites Check
Check if constitution template exists:
cat .specify/memory/constitution.md 2>/dev/null || echo "NO_CONSTITUTION"
If file doesn't exist, copy from skill references:
- Read the constitution template from this skill's
references/constitution-template.md
- Create
.specify/memory/constitution.md with the template
Execution Flow
Load the existing constitution template at .specify/memory/constitution.md.
- Identify every placeholder token of the form
[ALL_CAPS_IDENTIFIER].
- IMPORTANT: The user might require fewer or more principles than the template. Adapt accordingly.
Collect/derive values for placeholders:
- If user input supplies a value, use it.
- Otherwise infer from existing repo context (README, docs, prior constitution versions).
- For governance dates:
RATIFICATION_DATE is the original adoption date (if unknown, ask or mark TODO)
LAST_AMENDED_DATE is today if changes are made
CONSTITUTION_VERSION must increment according to semantic versioning:
- MAJOR: Backward incompatible governance/principle removals or redefinitions
- MINOR: New principle/section added or materially expanded guidance
- PATCH: Clarifications, wording, typo fixes, non-semantic refinements
Draft the updated constitution content:
- Replace every placeholder with concrete text (no bracketed tokens left)
- Preserve heading hierarchy
- Ensure each Principle section has: succinct name, paragraph or bullet list capturing non-negotiable rules, explicit rationale
- Ensure Governance section lists amendment procedure, versioning policy, and compliance review expectations
Consistency propagation (validate against templates if they exist):
- Check
.specify/templates/plan-template.md for constitution alignment
- Check
.specify/templates/spec-template.md for scope/requirements alignment
- Check
.specify/templates/tasks-template.md for task categorization alignment
Produce a Sync Impact Report (prepend as HTML comment at top of constitution file):
- Version change: old -> new
- List of modified principles
- Added/removed sections
- Templates requiring updates
- Follow-up TODOs if any placeholders deferred
Validation before final output:
- No remaining unexplained bracket tokens
- Version line matches report
- Dates in ISO format YYYY-MM-DD
- Principles are declarative, testable, and free of vague language
Phase Separation Validation (REQUIRED):
Before writing, scan the draft constitution for technology-specific content that belongs in /speckit-03-plan:
Check for violations - constitution MUST NOT mention:
- Programming languages (Python, JavaScript, TypeScript, Go, Rust, Java, C#, etc.)
- Frameworks (React, Django, Express, Spring, Rails, FastAPI, etc.)
- Databases (PostgreSQL, MySQL, MongoDB, SQLite, Redis, etc.)
- Infrastructure (Docker, Kubernetes, AWS, GCP, Azure, etc.)
- Specific libraries or packages
- Version numbers of tools
- File extensions tied to languages (.py, .js, .ts, etc.)
- API specifications (REST, GraphQL, gRPC)
If violations found:
╭─────────────────────────────────────────────────────────────────╮
│ PHASE SEPARATION VIOLATION DETECTED │
├─────────────────────────────────────────────────────────────────┤
│ Constitution contains technology-specific content: │
│ - [list each violation] │
│ │
│ Technology decisions belong in /speckit-03-plan, not here. │
│ Constitution must be technology-agnostic to survive tech │
│ stack changes. │
├─────────────────────────────────────────────────────────────────┤
│ ACTION: Removing technology references and generalizing... │
╰─────────────────────────────────────────────────────────────────╯
Auto-fix: Rewrite the violating sections to be technology-agnostic:
- "Use Python" → "Use appropriate language for the domain"
- "Store in PostgreSQL" → "Use persistent storage"
- "Deploy with Docker" → "Use containerization when appropriate"
Re-validate after fixes until no violations remain.
Write the completed constitution back to .specify/memory/constitution.md
Output final summary to the user with:
- New version and bump rationale
- Any files flagged for manual follow-up
- Suggested commit message
Formatting Requirements
- Use Markdown headings exactly as in the template
- Wrap long rationale lines for readability (<100 chars)
- Keep a single blank line between sections
- Avoid trailing whitespace
Next Steps
After creating the constitution, you can:
- Run
/speckit-01-specify to create a feature specification
The constitution will be loaded and validated by all other speckit skills.
1---2name: speckit-00-constitution3description: Create or update project governance principles and constitution4---56# Spec-Kit Constitution78Create or update the project constitution at `.specify/memory/constitution.md`. This file defines the governing principles, constraints, and governance rules for specification-driven development.910## Scope - What Constitution Contains1112**MUST contain:**13- Project governance principles (high-level, technology-agnostic)14- Non-negotiable development rules15- Quality standards and expectations16- Amendment procedures and versioning policy17- Compliance review expectations1819**MUST NOT contain:**20- Technology stack (languages, frameworks, databases) - belongs in `/speckit-03-plan`21- Implementation details - belongs in `/speckit-03-plan`22- Specific tools or versions - belongs in `/speckit-03-plan`23- API designs or data models - belongs in `/speckit-03-plan`2425The constitution defines the "laws" of the project. The plan defines how to implement features within those laws.2627## User Input2829```text30$ARGUMENTS31```3233You **MUST** consider the user input before proceeding (if not empty).3435## Prerequisites Check36371. Check if constitution template exists:38 ```bash39 cat .specify/memory/constitution.md 2>/dev/null || echo "NO_CONSTITUTION"40 ```41422. If file doesn't exist, copy from skill references:43 - Read the constitution template from this skill's `references/constitution-template.md`44 - Create `.specify/memory/constitution.md` with the template4546## Execution Flow47481. **Load the existing constitution template** at `.specify/memory/constitution.md`.49 - Identify every placeholder token of the form `[ALL_CAPS_IDENTIFIER]`.50 - **IMPORTANT**: The user might require fewer or more principles than the template. Adapt accordingly.51522. **Collect/derive values for placeholders**:53 - If user input supplies a value, use it.54 - Otherwise infer from existing repo context (README, docs, prior constitution versions).55 - For governance dates:56 - `RATIFICATION_DATE` is the original adoption date (if unknown, ask or mark TODO)57 - `LAST_AMENDED_DATE` is today if changes are made58 - `CONSTITUTION_VERSION` must increment according to semantic versioning:59 - MAJOR: Backward incompatible governance/principle removals or redefinitions60 - MINOR: New principle/section added or materially expanded guidance61 - PATCH: Clarifications, wording, typo fixes, non-semantic refinements62633. **Draft the updated constitution content**:64 - Replace every placeholder with concrete text (no bracketed tokens left)65 - Preserve heading hierarchy66 - Ensure each Principle section has: succinct name, paragraph or bullet list capturing non-negotiable rules, explicit rationale67 - Ensure Governance section lists amendment procedure, versioning policy, and compliance review expectations68694. **Consistency propagation** (validate against templates if they exist):70 - Check `.specify/templates/plan-template.md` for constitution alignment71 - Check `.specify/templates/spec-template.md` for scope/requirements alignment72 - Check `.specify/templates/tasks-template.md` for task categorization alignment73745. **Produce a Sync Impact Report** (prepend as HTML comment at top of constitution file):75 - Version change: old -> new76 - List of modified principles77 - Added/removed sections78 - Templates requiring updates79 - Follow-up TODOs if any placeholders deferred80816. **Validation before final output**:82 - No remaining unexplained bracket tokens83 - Version line matches report84 - Dates in ISO format YYYY-MM-DD85 - Principles are declarative, testable, and free of vague language86877. **Phase Separation Validation (REQUIRED)**:8889 Before writing, scan the draft constitution for technology-specific content that belongs in `/speckit-03-plan`:9091 **Check for violations - constitution MUST NOT mention:**92 - Programming languages (Python, JavaScript, TypeScript, Go, Rust, Java, C#, etc.)93 - Frameworks (React, Django, Express, Spring, Rails, FastAPI, etc.)94 - Databases (PostgreSQL, MySQL, MongoDB, SQLite, Redis, etc.)95 - Infrastructure (Docker, Kubernetes, AWS, GCP, Azure, etc.)96 - Specific libraries or packages97 - Version numbers of tools98 - File extensions tied to languages (.py, .js, .ts, etc.)99 - API specifications (REST, GraphQL, gRPC)100101 **If violations found:**102 ```103 ╭─────────────────────────────────────────────────────────────────╮104 │ PHASE SEPARATION VIOLATION DETECTED │105 ├─────────────────────────────────────────────────────────────────┤106 │ Constitution contains technology-specific content: │107 │ - [list each violation] │108 │ │109 │ Technology decisions belong in /speckit-03-plan, not here. │110 │ Constitution must be technology-agnostic to survive tech │111 │ stack changes. │112 ├─────────────────────────────────────────────────────────────────┤113 │ ACTION: Removing technology references and generalizing... │114 ╰─────────────────────────────────────────────────────────────────╯115 ```116117 **Auto-fix:** Rewrite the violating sections to be technology-agnostic:118 - "Use Python" → "Use appropriate language for the domain"119 - "Store in PostgreSQL" → "Use persistent storage"120 - "Deploy with Docker" → "Use containerization when appropriate"121122 Re-validate after fixes until no violations remain.1231248. **Write the completed constitution** back to `.specify/memory/constitution.md`1251269. **Output final summary** to the user with:127 - New version and bump rationale128 - Any files flagged for manual follow-up129 - Suggested commit message130131## Formatting Requirements132133- Use Markdown headings exactly as in the template134- Wrap long rationale lines for readability (<100 chars)135- Keep a single blank line between sections136- Avoid trailing whitespace137138## Next Steps139140After creating the constitution, you can:141- Run `/speckit-01-specify` to create a feature specification142143The constitution will be loaded and validated by all other speckit skills.