save-session.sh: broken PROJECT_DIR when installed via Claude Code plugin cache

[vkartaviy]

Bug

save-session.sh never successfully saves memory when the plugin is installed through Claude Code's official plugin system. Every invocation fails with:

save-session.sh: line 135: cd: ~/.claude/plugins/cache/claude-plugins-official/.claude/remember: No such file or directory
save-session.sh: line 140: [: : integer expression expected
save-session.sh: line 142: [: : integer expression expected
save-session.sh: line 164: cd: ~/.claude/plugins/cache/claude-plugins-official/.claude/remember: No such file or directory

Root Cause

save-session.sh lines 57-58 compute PROJECT_DIR by walking 3 directories up from $0:

PROJECT_DIR="$(cd "$(dirname "$0")/../../.." && pwd)"
PIPELINE_DIR="${PROJECT_DIR}/.claude/remember"

When installed via Claude Code's plugin cache at ~/.claude/plugins/cache/claude-plugins-official/remember/<version>/scripts/, going up 3 levels resolves to ~/.claude/plugins/cache/claude-plugins-official/ — not the actual project directory.

The other two hook scripts (post-tool-hook.sh line 31-32, session-start-hook.sh line 40-41) already correctly use CLAUDE_PROJECT_DIR and CLAUDE_PLUGIN_ROOT env vars. save-session.sh is the only script that ignores these and does its own (broken) path calculation.

Impact

• now.md, today-*.md, recent.md, archive.md, core-memories.md are never created
• The .remember/logs/autonomous/ directory fills up with hundreds of error/empty log files
• The session-start hook prints the === REMEMBER === banner, making it look like the plugin is working, but no memory is ever saved or loaded

Suggested Fix

Replace lines 57-58 in save-session.sh:

PROJECT_DIR="${CLAUDE_PROJECT_DIR:-$(cd "$(dirname "$0")/../../.." && pwd)}"
PIPELINE_DIR="${CLAUDE_PLUGIN_ROOT:-$(cd "$(dirname "$0")/.." && pwd)}"

These env vars are set by Claude Code for hook scripts and inherited by the background nohup process that launches save-session.sh. The fallback preserves the original behavior for manual invocation.

Environment

• Claude Code plugin system (installed via claude-plugins-official)
• macOS / zsh
• Plugin version: 0.1.0