Feature request: Expose session_id to the conversation context

증상

Claude Code’s session_id is available in the JSON piped to statusLine commands and hooks, but is not accessible from within the conversation itself — not as an environment variable, not through any tool, and not in any system context.

원인

Environment variable, configuration file, or initialization parameter missing, malformed, or incorrectly scoped.

해결법

we implemented for the ccstatusline task-objective widget:

The statusLine command receives session_id in its stdin JSON
It walks up the process tree (ps -o ppid=,comm=) to find the Claude CLI PID
It writes the session ID to ~/.cache/ccstatusline/sessions/<claude-pid>
Claude runs echo $PPID to get the CLI PID, then reads the file to discover its session ID

This works but is fragile (Unix-only, requires process tree walking) and adds latency to every statusLine render.

예상 토큰 절약

이 에러로 삽질 시: 약 5,000~15,000 토큰 소비 이 해결법 참조 시: 약 500 토큰

출처

https://github.com/anthropics/claude-code/issues/38390

Source: https://github.com/anthropics/claude-code/issues/38390

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