#!/bin/bash
#
# Session start hook — load bootstrap context
#
# Injects the available skills list into the conversation context
# so the agent knows what capabilities are available.
#

PLUGIN_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
SKILLS_DIR="$PLUGIN_ROOT/skills"

# Build skills index
SKILLS_LIST=""
for skill_dir in "$SKILLS_DIR"/*/; do
  [ -d "$skill_dir" ] || continue
  skill_name=$(basename "$skill_dir")
  skill_file="$skill_dir/SKILL.md"
  if [ -f "$skill_file" ]; then
    # Extract description from YAML frontmatter
    desc=$(awk '/^---$/{n++; next} n==1 && /^[ \t]*description:/{sub(/.*description:[ \t]*/, ""); if ($0 == "|" || $0 == ">") {getline; sub(/^[ \t]+/, ""); } print; exit}' "$skill_file" | head -c 100)
    SKILLS_LIST="$SKILLS_LIST\n- **$skill_name**: $desc"
  fi
done

if [ -z "$SKILLS_LIST" ]; then
  exit 0
fi

CONTEXT="aigentry-devkit: Available skills:$SKILLS_LIST\n\nUse the Skill tool to invoke any skill by name."

# Output in Claude Code hook format
ESCAPED=$(echo -e "$CONTEXT" | node -e '
  let d=""; process.stdin.on("data",c=>d+=c);
  process.stdin.on("end",()=>console.log(JSON.stringify(d)));
' 2>/dev/null)

echo "{\"hookSpecificOutput\":{\"additionalContext\":$ESCAPED}}"