Parallel to mempalace-session, this wrapper walks ~/.pi/agent/sessions/
JSONL files and mines qualifying sessions into wing_conversations via
'mempalace mine --mode convos'.
Design choices mirror mempalace-session:
- Export-stage-mine idiom with deterministic per-session staging paths
under ~/.cache/mempalace-pi-session/<wing>/, so 'mempalace mine' dedup
on source_file makes re-runs idempotent.
- --dry-run classifies each export as [NEW] or [SKIP] by matching staging
path against the palace's already-filed source_files.
- --min-messages filter skips throwaway single-prompt sessions.
Pi-specific parsing:
- Pi JSONL is a typed tree (id/parentId) per docs/session-format.md;
this walks in file order, which is correct for the overwhelmingly
linear case and harmlessly duplicative on branched sessions (palace
semantic dedup handles it).
- Roles mapped to Claude Code JSONL shape:
user -> {type:user, content:text}
assistant -> {type:assistant, content:[text, tool_use]}
toolResult-> {type:human, content:[tool_result]} (folded back by normalizer)
bashExecution/custom(display)/branchSummary/compactionSummary
-> rendered as text annotations
- thinking blocks and image blocks dropped (noise / palace is text-only).
Source labelling:
- Staging filenames prefixed 'pi_<uuid>.jsonl' so every drawer's
source_file metadata (visible in search results) unambiguously
identifies the harness. Opencode's convention ('<slug>_<id>.jsonl')
is preserved to keep the existing 19k+ drawers deduped.
- Inline synthetic header on first chunk:
[session: <title> | <cwd> | <date> | source: pi]
as a secondary signal.
