#!/usr/bin/env python3
"""SessionStart hook: inject ORCHESTRATION.md as additionalContext.

Fires on startup/resume/clear, and on 'compact' (matcher includes it) so the
rules survive a context-compaction pass, not just the first turn.
"""
import json
import os
import sys

PLUGIN_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
ORCHESTRATION_FILE = os.path.join(PLUGIN_ROOT, "ORCHESTRATION.md")


def main():
    try:
        with open(ORCHESTRATION_FILE) as f:
            context = f.read()
    except OSError:
        return

    print(json.dumps({
        "hookSpecificOutput": {
            "hookEventName": "SessionStart",
            "additionalContext": context,
        }
    }))


if __name__ == "__main__":
    sys.exit(main())