name: fetch-issue description: Fetch Linear issue and create branch argument-hint: <ALG-XX> user-invocable: true

Fetch Linear Issue and Create Branch

Linear issue identifier: $ARGUMENTS Examples: ALG-27, 27, alg-27

Parse issue identifier from $ARGUMENTS:
- Accept formats: ALG-27, 27, alg-27
- Normalize to ALG-{NUM} for Linear API call
- Extract number for folder naming

Fetch issue details using Linear MCP:

mcp__linear-server__get_issue with:
- id: ALG-{NUM}
- includeRelations: true

Extract from issue response:
- identifier: e.g., "ALG-27"
- title: Issue title
- description: Full description
- labels: Array of label names
- status: Current status
- relations.blocks: Issues this blocks
- relations.blockedBy: Issues blocking this
- relations.relatedTo: Related issues
Parse description for mentioned issues:
- Search for patterns: ALG-\d+ (case-insensitive)
- Extract unique issue identifiers mentioned in description
- These are treated as "linked" issues alongside formal relations
- Example: [ALG-13](https://linear.app/...) -> extract ALG-13
For each linked issue (from relations AND description mentions):
- Use Glob to find specs/alg-{related-num}-*/spec.md (Glob matches files, not directories)
- If spec.md exists, read the summary section
- Collect related specs for context
Derive kebab-slug from title:
- Lowercase the title
- Replace spaces and special chars with hyphens
- Remove consecutive hyphens
- Truncate to reasonable length (40 chars max)

Create branch and spec directory:

NUM={extracted number}
SLUG={kebab-slug}
git checkout -b alg-${NUM}-${SLUG}
mkdir -p specs/alg-${NUM}-${SLUG}