30 lines
1.1 KiB
Bash
30 lines
1.1 KiB
Bash
#!/bin/bash
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# Claude Code SubagentStart hook: Log agent invocations for audit trail
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# Tracks which agents are being used and when
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#
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# Input schema (SubagentStart) — per Claude Code hooks reference:
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# { "session_id": "...", "agent_id": "agent-abc123", "agent_type": "Explore", ... }
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#
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# The agent name is in `agent_type`, NOT `agent_name`. Reading `.agent_name`
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# returns null on every invocation, so the fallback "unknown" is always used
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# and the audit trail captures nothing useful.
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INPUT=$(cat)
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# Parse agent name -- use jq if available, fall back to grep
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if command -v jq >/dev/null 2>&1; then
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AGENT_NAME=$(echo "$INPUT" | jq -r '.agent_type // "unknown"' 2>/dev/null)
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else
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AGENT_NAME=$(echo "$INPUT" | grep -oE '"agent_type"[[:space:]]*:[[:space:]]*"[^"]*"' | sed 's/"agent_type"[[:space:]]*:[[:space:]]*"//;s/"$//')
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[ -z "$AGENT_NAME" ] && AGENT_NAME="unknown"
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fi
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TIMESTAMP=$(date +%Y%m%d_%H%M%S)
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SESSION_LOG_DIR="production/session-logs"
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mkdir -p "$SESSION_LOG_DIR" 2>/dev/null
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echo "$TIMESTAMP | Agent invoked: $AGENT_NAME" >> "$SESSION_LOG_DIR/agent-audit.log" 2>/dev/null
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exit 0
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