Add slash command /pr:open to list open PRs with useful information

.claude/commands/pr/open.md

@@ -0,0 +1,79 @@
+---
+description: Show open pull requests in the repository
+---
+
+## Usage
+
+List open pull requests in the repository with various filtering options.
+
+**Basic usage:**
+```bash
+/pr:open
+```
+
+**Filter by author:**
+```bash
+/pr:open --author @me
+/pr:open --author username
+```
+
+**Filter by label:**
+```bash
+/pr:open --label bug
+/pr:open --label do-not-merge/hold
+```
+
+**Filter by assignee:**
+```bash
+/pr:open --assignee username
+```
+
+**Change state filter:**
+```bash
+/pr:open --state all
+/pr:open --state closed
+/pr:open --state merged
+```
+
+**Limit results:**
+```bash
+/pr:open --limit 10
+```
+
+**Combine filters:**
+```bash
+/pr:open --author @me --state all --limit 5
+/pr:open --label bug --assignee username
+```
+
+---
+
+You are helping the user list open pull requests in this repository.
+
+Follow these steps:
+1. Parse the args to check for any filters (author, label, etc.)
+2. Use `gh pr list` to get open PRs with relevant information
+3. Display the results in a clear, readable format
+
+Available filters from args:
+- `--author <username>` - Filter by author
+- `--label <label>` - Filter by label
+- `--limit <number>` - Limit number of results (default: 30)
+- `--assignee <username>` - Filter by assignee
+- `--state <state>` - Filter by state (open, closed, merged, all)
+
+Example commands:
+- List all open PRs: `gh pr list --state open`
+- List my PRs: `gh pr list --author @me`
+- List PRs with specific label: `gh pr list --label bug`
+- Show more details: `gh pr list --state open --json number,title,author,updatedAt,labels,state,isDraft,statusCheckRollup`
+
+The output should show:
+- PR number
+- Title
+- Author
+- Status (draft, checks passing/failing)
+- Labels
+- Last updated
+
+Args from user: {{args}}