feat: Session Task Journal — auto-capture DA responses to dated Markdown logs

[rfdiazpr]

Problem

Every DA response is ephemeral. When a session ends, all task output — findings, decisions, changes, verification results — is gone. Only Algorithm-mode tasks generate any persistent record (algorithm-reflections.jsonl), and only as metadata (task description + 3 reflection questions), never the actual response content.

Users cannot search, revisit, or build on prior work without redoing it from scratch or relying on memory.

Proposed Solution

A per-day session journal: PAI/USER/SESSION_LOG/YYYY-MM-DD.md.

Every DA response — NATIVE, ALGORITHM, MINIMAL — is automatically appended as a timestamped entry. No manual action required.

Implementation

PAI/TOOLS/SessionLog.ts — CLI tool:

• --append --task "..." --mode "NATIVE|ALGORITHM" — write entry (reads stdin)
• --today — print today's log
• --search <query> — grep across all log files
• --retroactive — backfill skeleton entries from algorithm-reflections.jsonl

hooks/SessionLogCapture.hook.ts — automatic capture:

• UserPromptSubmit (async): scans transcript for last PAI-formatted response, appends to today's log
• Stop: captures final response via last_assistant_message, with transcript fallback
• Dedup via per-session fingerprint file (MEMORY/STATE/session-log-fp-{id}.txt)
• Skips responses < 80 chars or without a PAI mode header

Entry format:

## HH:MM | MODE | Task name

[full response content]

Toggle: PAI_SESSION_LOG=false env var disables all writes.

Benefits

• Searchable history — SessionLog.ts --search <query> across all days
• Obsidian-compatible — plain Markdown, indexes out of the box
• fabric-ready — each day's file can be piped through extract_wisdom
• Retroactive — --retroactive backfills skeleton entries from existing algorithm-reflections.jsonl for all prior dates
• Closes a Memory architecture gap — PAI has LEARNING (ratings/reflections) and KNOWLEDGE (harvested notes) but no SESSION_LOG surface

Optional Pulse Integration

A /session-log viewer route can be added to pulse.ts:

• Sidebar date list + rendered Markdown panel
• AJAX date switching + client-side search with highlight
• Routes: GET /session-log, GET /api/session-log?date=YYYY-MM-DD, GET /api/session-log/dates

Files

• PAI/TOOLS/SessionLog.ts (new)
• hooks/SessionLogCapture.hook.ts (new)
• settings.json — wire hook to Stop + UserPromptSubmit
• PAI/USER/SESSION_LOG/ — storage directory

Toggle

PAI_SESSION_LOG=false in env or .env — no writes at all.