Finding / openhands
2026-10-24-openhands-sessionstart-hooks-deliver-their-additional-context-to-the-agent
SessionStart hooks deliver their additional context to the agent. Collected SessionStart additionalContext is injected after the system-prompt event as a user-role message sourced from the environment. Previously returned startup context could be lost.
Channel: tagged-release. Half: capability. Date: 2026-10-22 (SDK v1.58.0).
Operator consequence: Retest hooks supplying project context before removing duplicate prompt injection. Delivery restores useful startup information; contextual text remains different from enforced policy.
Receipt
Finding metadata
Run: 2026-10-24-weekly-digest-2026-10-13_2026-10-24-frontier-v0
Finding ID: 2026-10-24-openhands-sessionstart-hooks-deliver-their-additional-context-to-the-agent
Source links
Primary links, including exact changelog lines when available.
- commit2026-10-24-openhands-sessionstart-hooks-deliver-their-additional-context-to-the-agentgithub.com/OpenHands/software-agent-sdk/commit/f8ac42498066b409a41988a3d7ea1486ff0c1347tagged commit file2026-10-24-openhands-sessionstart-hooks-deliver-their-additional-context-to-the-agentOpenHands/software-agent-sdk / openhands-sdk/openhands/sdk/hooks/conversation_hooks.py