The pi coding-agent extension at ~/.pi/agent/extensions/mempalace.ts was
living only on tor-ms22, including hand-edited fixes (Type.Unsafe
schema-passthrough for MCP tool parameters). One disk wipe away from
losing it, and no way to reproduce the install on a new machine.
- extensions/pi/mempalace.ts: canonical copy (matches tor-ms22 byte-for-byte)
- extensions/pi/README.md: what it does, the schema-passthrough gotcha,
debugging knobs
- install.sh: new install_pi_extension step — gated on ~/.pi/agent/extensions/
existing, backs up any real file in the way, idempotent re-runs, mirror
block in uninstall. Works on macOS and Linux (plain ln -s, readlink -f).
- README.md: mention extensions/pi/ in the repo-contents list and in the
Setup section
Verified on tor-ms22: install (backs up existing real file) → uninstall
(removes symlink) → reinstall (clean symlink). Re-runs are no-ops.
