nicolas-codemate/fetch-ticket

Fetch Ticket Skill

This skill retrieves ticket/issue information from various sources and normalizes it to a consistent markdown format.

Supported Sources

1. YouTrack (via MCP)

• Pattern: PROJ-123, ABC-1, any UPPERCASE-NUMBER format
• Tool: mcp__youtrack__get_issue
• Also fetches: Comments via mcp__youtrack__get_issue_comments

2. GitHub (via gh CLI)

• Pattern: #123, 123 (when github repo configured), owner/repo#123
• Tool: gh issue view or gh pr view
• Detection: Attempts issue first, falls back to PR

3. File (manual input)

• Pattern: Path to existing .md file
• Use case: When ticket is already saved or provided externally

Source Detection Logic

Input ID → Detect Source
├── Matches /^[A-Z]+-\d+$/ → YouTrack
├── Matches /^#?\d+$/ → GitHub (issue/PR number)
├── Matches /^[\w-]+\/[\w-]+#\d+$/ → GitHub (explicit repo)
├── File exists at path → File
└── Otherwise → Error: Unknown format

Retrieval Process

YouTrack

1. Call mcp__youtrack__get_issue with issueId
2. Call mcp__youtrack__get_issue_comments for discussion context
3. Extract fields:
   • summary → Title
   • description → Description
   • state.name → Status
   • priority.name → Priority
   • type.name → Type
   • assignee.name → Assignee
   • tags[].name → Labels
   • customFields → Additional metadata

Target Branch Extraction from Milestone

When processing YouTrack issues, extract the target branch from milestone/sprint fields:

1. Look for milestone fields in customFields:

   • "Milestone", "Sprint", "Fix versions", "Target Version"

2. Parse milestone format to extract branch:

   • Format: YYYY-MM-suffix (e.g., "2025-12-continue", "2026-01")
   • Extract: YYYY-MM as branch name (e.g., "2025-12", "2026-01")

3. Verify branch exists on origin:

   git ls-remote --heads origin "{extracted-branch}" 2>/dev/null
   

   • If branch exists → use as Target Branch
   • If branch does NOT exist → target branch is main (release branch not yet created)

4. Add to metadata table:

   | Target Branch | {branch} |
   

Example:

• Milestone: "2025-12-continue" → Target Branch: "2025-12" (if exists on origin)
• Milestone: "2026-01" → Target Branch: "main" (if 2026-01 doesn't exist on origin yet)

GitHub

1. Run gh issue view <number> --json title,body,state,labels,assignees,milestone,comments
2. If 404, try gh pr view <number> --json ...
3. Extract fields:
   • title → Title
   • body → Description
   • state → Status
   • labels[].name → Labels
   • assignees[].login → Assignees
   • comments[].body → Discussion

File

1. Read file content
2. Parse frontmatter if present (YAML between ---)
3. Use content as-is or extract structured data

Output Format

All sources output a normalized markdown document:

---
source: youtrack|github|file
ticket_id: PROJ-123
fetched_at: 2024-01-15T10:30:00Z
url: https://...
---

# [Ticket Title]

## Metadata

| Field | Value |
|-------|-------|
| Status | Open |
| Type | Feature |
| Priority | High |
| Assignee | @username |
| Labels | label1, label2 |

## Description

[Original ticket description]

## Comments

### Comment by @author (2024-01-14)

[Comment content]

---

### Comment by @author2 (2024-01-15)

[Comment content]

Error Handling

YouTrack Errors

• MCP unavailable: Return error with message "YouTrack MCP server not available. Ensure it's configured in Claude settings."
• Issue not found: Return error with message "Issue {id} not found in YouTrack"
• Permission denied: Return error with message "Access denied to issue {id}"

GitHub Errors

• gh not authenticated: Return error with message "GitHub CLI not authenticated. Run: gh auth login"
• Issue/PR not found: Return error with message "Issue/PR #{number} not found in repository"
• Repository not specified: Return error with message "GitHub repository not specified. Use format owner/repo#123 or configure in ticket-config.json"

File Errors

• File not found: Return error with message "Ticket file not found: {path}"
• Invalid format: Return error with message "Could not parse ticket file: {path}"

Usage in Workflow

This skill is typically invoked by:

1. /resolve command - as first step
2. Other skills needing ticket data

Configuration Integration

Reads from project's .claude/ticket-config.json:

• default_source: Preferred source when ambiguous
• youtrack.project_prefix: Default prefix for short IDs
• github.repo: Default repository for GitHub issues

Implementation Steps

When invoked:

1. Parse input to determine ticket ID and potential source
2. Load config from .claude/ticket-config.json if exists
3. Detect source using patterns above
4. Fetch data using appropriate method
5. Normalize output to standard markdown format
6. Return the formatted ticket document

Language

Output ticket content in its original language. Metadata labels in English for consistency.