Auto-journal — SessionEnd hook + Screenpipe writer, both feeding knowledge/journal/

decision Fri Jul 03 2026 00:00:00 GMT+0000 (Coordinated Universal Time) journalhookscreenpipesession-endagent-toolingdecision

Auto-journal — two writers, one file

Locked

Two independent journal writers, both append to knowledge/journal/YYYY-MM-DD.md:

Writer 1 — Claude Code SessionEnd hook

Fires when a CC session ends (/clear, exit, timeout). Wraps the session into one journal block:

## <HH:MM> Claude Code session — <first-user-prompt-slug>
- **Ask:** <user's opening prompt, truncated 100 chars>
- **Touched:** file/path/1.md, file/path/2.md
- **Decisions locked:** knowledge/decisions/.../foo-YYYY-MM-DD.md
- **TODOs surfaced:** [] item, [] item
- **Follow-up:** <one line>

Hook script location: scripts/journal-cc-session-end.mjs (Node stdlib, reads transcript, writes markdown block). Registered in ~/.claude/settings.json under hooks.SessionEnd.

Writer 2 — Screenpipe pipe

Screenpipe already captures screen + audio + Wispr Flow dictations + meeting intel (see ~/.claude/screenpipe-memories.md). Add a pipe that emits a daily digest into the same journal file:

## <HH:MM> Screenpipe digest
- **Apps:** chrome, Windows Terminal, VS Code
- **Meetings:** <title, attendees, key decisions>
- **Wispr dictations:** <one-line summaries>
- **Screen time hotspots:** <top 3 apps by minutes>

Pipe: pipe-daily-journal-writer (config in ~/.screenpipe/pipes/). Writes to C:/D/oriz/knowledge/journal/YYYY-MM-DD.md at 09:00 IST daily + on Screenpipe shutdown.

Why both writers

SessionEnd captures what agents did: files touched, decisions locked, code shipped. High-signal for future agent lookback.
Screenpipe captures what user did off-agent: browsing, meetings, dictations. High-signal for user context restoration.
Merged into one daily file → single lookup surface (knowledge/journal/2026-07-03.md), agent + human unified timeline.

Conflict handling

Both writers append (no overwrite). Ordering by timestamp header. File format:

---
type: journal
title: Journal 2026-07-03
description: Auto-generated daily journal — agent sessions + Screenpipe digests
tags: [journal, auto]
timestamp: 2026-07-03
format_version: okf-v0.1
status: active
---

# Journal 2026-07-03

## 09:00 Screenpipe digest
...

## 10:15 Claude Code session — foam-vs-obsidian-review
...

## 14:22 Claude Code session — commit-pkm-decisions
...

## 18:00 Screenpipe digest
...

File appends are atomic on Windows for small writes (<4KB per block). Both writers fsync after append.

PII / secret redaction

Screenpipe already redacts credentials per its config; do not weaken.
SessionEnd hook: redact any lines matching sops age, Bearer <token>, ${env:VAR}=<value>, password: before writing.
Journal file committed to git → same secret discipline as no-hardcoded-secrets.

Commit cadence

SessionEnd hook writes AND auto-commits: chore(journal): <date> session <slug>.
Screenpipe pipe writes AND queues for daily commit (single commit per day: chore(journal): <date> screenpipe digest).
Auto-push per standing authorisation (chirag127/workspace, no destructive ops).

Retention

None. Daily journal files stay forever — cheap on git, high value for git log --grep lookback. Per everything-durable-to-cloud.

Rollback trigger

Hook noise > signal (e.g., writing 50 blocks/session) → tune hook filter.
Screenpipe pipe misfires (dupe writes, wrong date) → disable pipe, keep SessionEnd only.
Sensitive content leaks into journal → tighten redaction, git filter-repo past commits.

Wiring status

Not wired yet. This decision doc is landed. Implementation (hook script + Screenpipe pipe config + first successful auto-journal) tracked separately.

[[pkm-stack-2026-07-03]]
[[journal-in-knowledge-daily-2026-07-03]]
[[self-update-rule]]
[[everything-durable-to-cloud]]