SubagentStop hooks now expose agent_id and agent_transcript_path, giving hook scripts per-subagent identity and transcript access.
Change
1
Total Changes (vs Average)
0.1×
Version Type
Patch
Release Focus
Feature
Days Since Prior Release
0
Release # This Month
#8 of 18
Bug Fix Ratio
0%
Post-Release Edits
—
Change Category
Plugins/Skills (4 of last 10) and MCP (4 of last 10) reflect sustained extensibility investment. This hook field addition deepens multi-agent observability, continuing a pattern of incremental hooks enrichment across recent releases.
Key Themes
1Subagent Hook Observability
May Help If You've Noticed
Your hook scripts can't distinguish which subagent triggered SubagentStop when running multiple agents in parallel
Changes in Claude Code v2.0.42
Added1 change
•Added agent_id and agent_transcript_path fields to SubagentStop hooks.