Files
fission-ai__openspec/openspec/specs/cli-update/spec.md
Tabish Bidiwale 0b1be19302 fix: update command respects existing AI tool files
The update command now only updates existing AI tool configuration
files instead of forcing CLAUDE.md creation. This allows team members
to use different AI tools without conflicts.

- Modified update.ts to check for existing files before updating
- Added comprehensive tests for the new behavior
- Updated spec and documentation to reflect team-friendly approach
- Created project README documenting the behavior
2025-08-13 23:25:53 +10:00

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# Update Command Specification
## Purpose
As a developer using OpenSpec, I want to update the OpenSpec instructions in my project when new versions are released, so that I can benefit from improvements to AI agent instructions.
## Core Requirements
### Requirement: Update Behavior
The update command SHALL update OpenSpec instruction files to the latest templates in a team-friendly manner.
#### Scenario: Running update command
- **WHEN** a user runs `openspec update`
- **THEN** the command SHALL:
- Check if the `openspec` directory exists
- Replace `openspec/README.md` with the latest template (complete replacement)
- Update **only existing** AI tool configuration files (e.g., CLAUDE.md)
- Check each registered AI tool configurator
- For each configurator, check if its file exists
- Update only files that already exist using their markers
- Preserve user content outside markers
- **Never create new AI tool configuration files**
- Display success message listing updated files
### Requirement: Prerequisites
The command SHALL require an existing OpenSpec structure before allowing updates.
#### Scenario: Checking prerequisites
- **GIVEN** the command requires an existing `openspec` directory (created by `openspec init`)
- **WHEN** the `openspec` directory does not exist
- **THEN** display error: "No OpenSpec directory found. Run 'openspec init' first."
- **AND** exit with code 1
### Requirement: File Handling
The update command SHALL handle file updates in a predictable and safe manner.
#### Scenario: Updating files
- **WHEN** updating files
- **THEN** completely replace `openspec/README.md` with the latest template
- **AND** update only the OpenSpec-managed blocks in **existing** AI tool files using markers
- **AND** use the default directory name `openspec`
- **AND** be idempotent (repeated runs have no additional effect)
- **AND** respect team members' AI tool choices by not creating unwanted files
## Edge Cases
### Requirement: Error Handling
The command SHALL handle edge cases gracefully.
#### Scenario: File permission errors
- **WHEN** file write fails
- **THEN** let the error bubble up naturally with file path
#### Scenario: Missing AI tool files
- **WHEN** an AI tool configuration file doesn't exist
- **THEN** skip updating that file
- **AND** do not create it
#### Scenario: Custom directory names
- **WHEN** considering custom directory names
- **THEN** not supported in this change
- **AND** the default directory name `openspec` SHALL be used
## Success Criteria
Users SHALL be able to:
- Update OpenSpec instructions with a single command
- Get the latest AI agent instructions
- See clear confirmation of the update
The update process SHALL be:
- Simple and fast (no version checking)
- Predictable (same result every time)
- Self-contained (no network required)