Spec from Issue Command

Create a specification from a GitHub issue by fetching it via gh CLI and passing it to speckit's specify command.

Arguments

$ARGUMENTS - GitHub issue number (required)

Ensure $ARGUMENTS contains a valid issue number:

Must be a positive integer
If missing, prompt: "Please provide a GitHub issue number (e.g., /spec-from-issue 51)"

Use gh CLI to fetch the issue details:

gh issue view $ARGUMENTS --json title,body,number,url

Extract:

If the command fails (e.g., issue doesn't exist, not in a repo, gh not authenticated):

Show the error message
Provide helpful guidance (e.g., "Run gh auth login" or "Navigate to a git repository")

Prepare the content to pass to speckit:

# GitHub Issue #<number>: <title>

**Source:** <url>

## Description

<body>

Call the speckit specify command with the formatted content:

/speckit.specify

<formatted content from step 3>

This will hand off to speckit's specify workflow, which will guide the user through creating a proper specification.

User: /spec-from-issue 51 Claude: Fetches issue #51, formats it, and passes to /speckit.specify

User: /spec-from-issue 123 Claude: Fetches issue #123, shows formatted content, invokes speckit

No issue number provided: Prompt for the issue number
Invalid issue number: Show error and ask for valid number
gh CLI error: Display the error and suggest fixes (auth, repo context, etc.)
Issue not found: Show 404 message and confirm the issue number