SessionStart
01Hook
Runs when a session starts on startup and resume, running headroom init hook ensure. From headroomlabs-ai/headroom.
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tokens not measured
original Apache-2.0
Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.
Hook
Runs when a session starts on startup and resume, running headroom init hook ensure. From headroomlabs-ai/headroom.
Hook
Runs before the agent uses a tool for Bash and PowerShell tool calls, running headroom init hook ensure. From headroomlabs-ai/headroom.