today

today

Generate an actionable daily insight briefing — not a logbook.

Phase 1: Locate and Profile the Data

1. Resolve output directory (direct python mode):

OUTPUT_DIR="${OUTPUT_DIR:-$HOME/.claude/cobrain}"
echo "$OUTPUT_DIR"

1. Build today's file path and check existence:

OUTPUT_DIR="${OUTPUT_DIR:-$HOME/.claude/cobrain}"
TODAY_FILE="$OUTPUT_DIR/$(date +%Y%m%d)-raw.md"
test -f "$TODAY_FILE" && echo "exists" || echo "missing"

1. If the file does not exist or is empty, report:
   • "No cobrain entries captured today. The daemon may not be running — check with status."
   • Stop here.

Phase 2: Efficient Metadata Extraction (bash-first)

CRITICAL: Do NOT read the raw file yet. Use bash/grep to extract structured metadata first. This avoids wasting tokens on repetitive VLM output and <think> blocks.

1. Extract entry count, time range, and per-app frequency:

# Entry count and time range
echo "=== ENTRY COUNT ==="
grep -c '^### ' "$TODAY_FILE"
echo "=== FIRST ENTRY ==="
grep -m1 '^### ' "$TODAY_FILE"
echo "=== LAST ENTRY ==="
grep '^### ' "$TODAY_FILE" | tail -1
echo "=== APP FREQUENCY ==="
grep '^### ' "$TODAY_FILE" | sed 's/^### [0-9:]\+ · //' | sort | uniq -c | sort -rn

1. Identify distinct activity blocks — consecutive runs of the same app represent a single work session:

# Show app transitions (block boundaries) with timestamps
grep '^### ' "$TODAY_FILE" | awk -F ' · ' '{app=$2} app!=prev {print NR, $0; prev=app}'

This gives you the session structure: how many blocks, what sequence of activities, and approximate durations.

Phase 3: Intelligent Content Sampling

1. For each distinct activity block (consecutive same-app entries), read ONLY the first and last entry to understand what that session was about. This achieves full activity coverage at ~10% token cost.

   • Use grep -n to find line numbers of block boundaries
   • Use Read tool with offset/limit to read only those specific entries (typically 5-10 lines each)
   • For very short blocks (1-2 entries), reading the single entry is sufficient
   • Never read the entire file