[bot] Add /pr command, new hook types, applyTo arrays, and Squad SDK-First mode

[github-actions]

What's new

Updates based on GitHub Copilot CLI releases v1.0.5–v1.0.9 (March 13–19, 2026) and Squad v0.8.21–v0.8.25 (March 7–8, 2026).

New features found

1. /pr command (CLI v1.0.5, 2026-03-13) — create and view PRs, automatically fix CI failures, address review feedback, and resolve merge conflicts from within a CLI session
2. New hook types (v1.0.5/v1.0.7):
   • preCompact — runs before context compaction, useful for saving state
   • subagentStart — fires when a subagent is spawned, allows injecting additional context into its prompt
   • preToolUse — fires before any tool is invoked; can block or warn (demonstrated by Tool Guardian hook in awesome-copilot)
3. Hooks in settings.json (v1.0.8) — hooks can now be defined directly in settings.json, settings.local.json, or config.json, not only in hooks.json files
4. Hook PascalCase/Claude Code compatibility (v1.0.6) — event names accept both camelCase and PascalCase for compatibility with VS Code and Claude Code
5. applyTo accepts arrays (v1.0.6) — Path-Specific Instructions frontmatter applyTo field now accepts both a string and an array of glob patterns
6. Squad SDK-First mode (Squad v0.8.21) — define teams in TypeScript with defineTeam(), defineAgent(), defineRouting() etc.; compile with squad build

Sections updated

• At a Glance (ASCII diagram): added /pr Command to the Agentic block
• Table of Contents: added /pr — Pull Request Automation link
• Path-Specific Instructions: added applyTo array syntax example and updated summary table
• Hooks: expanded hook types table (3 new events), added settings.json config note, added PascalCase compatibility note
• Agentic Features: added new /pr — Pull Request Automation section between Autopilot Mode and Copilot Coding Agent
• Community Projects → Squad: updated "What's new" from v0.8.x to v0.8.21–v0.8.25 with SDK-First mode bullet
• Quick Reference: added /pr row

Sources

• CLI v1.0.5 release notes — /pr command, preCompact hook, /extensions command
• CLI v1.0.6 release notes — applyTo arrays, hook PascalCase compat, Claude Code hook structure
• CLI v1.0.7 release notes — subagentStart hook, gpt-5.4-mini model
• CLI v1.0.8 release notes — hooks in settings.json, MCP ALLOWLIST, --resume with task ID
• CLI v1.0.9 release notes — include_gitignored config, marketplace/plugin installs from aka.ms links
• Squad v0.8.21 release notes — SDK-First mode with builder functions
• Squad v0.8.24 release notes — Azure DevOps, CommunicationAdapter, SubSquads
• Tool Guardian hook (awesome-copilot #1044) — preToolUse community example

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