Spec

Spec

Turn the proposal's capabilities into testable behavioral requirements through collaborative discovery. Specifications define observable behavior, not architecture or implementation.

Do not write a capability's spec until you have presented its proposed requirements and scenarios and the user has approved them.

Process

1. Read the proposal and related existing specifications. Use the proposal's capability names to determine the new or modified spec files. For modified capabilities, locate the current requirement blocks before drafting the delta.
2. Work through capabilities one at a time. Use codagent:ask-questions to resolve material behavior, boundaries, errors, and edge cases. Ask only questions that affect observable behavior or scope, recommend a default when useful, and do not use a generic approval question as discovery.
3. Present the complete proposed requirements and scenarios for that capability, including consequential assumptions or defaults inferred from context.
4. After approval, write the spec file using the format below. Continue until each proposal capability has a corresponding spec.

If behavior depends on an unresolved architectural choice, specify as much as is currently knowable and add <!-- deferred-to-design: <reason> --> to the affected scenario. The design phase will complete or revise it. Do not ask architecture or implementation questions during specification.

Report the relative paths created. Do not invoke another lifecycle skill.

OpenSpec format

• Use one file per capability: specs/<capability>/spec.md.
• Write normative requirements with SHALL or MUST.
• Use ### Requirement: <name> and at least one #### Scenario: <name> per requirement.
• Scenarios describe observable WHEN/THEN behavior. Exactly four hashes on scenario headings are required by the parser.
• Avoid scenarios about file contents, configuration structure, or skill text unless those are the actual public contract.

Use delta sections as applicable:

• ## ADDED Requirements for new behavior.
• ## MODIFIED Requirements for changed behavior. Copy the entire existing requirement block and all scenarios before editing it.
• ## REMOVED Requirements with Reason and Migration.
• ## RENAMED Requirements with FROM and TO.

## ADDED Requirements

### Requirement: <name>
<normative behavior>

#### Scenario: <name>
- **WHEN** <condition>
- **THEN** <observable result>