93415257f3
SessionStart: query OpenBrain for recent activity + project context, inject into Claude's context window on every new session. Stop: async save session context to OpenBrain when git changes exist. PreCompact: save working state to OpenBrain before context compaction. API key read from ~/.claude/brain.key or CORE_BRAIN_KEY env var. Co-Authored-By: Virgil <virgil@lethean.io>
118 lines
4.1 KiB
Bash
Executable file
118 lines
4.1 KiB
Bash
Executable file
#!/bin/bash
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# Session start: Load OpenBrain context + recent scratchpad
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#
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# 1. Query OpenBrain for project-relevant memories
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# 2. Read local scratchpad if recent (<3h)
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# 3. Output to stdout → injected into Claude's context
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BRAIN_URL="${CORE_BRAIN_URL:-https://api.lthn.sh}"
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BRAIN_KEY="${CORE_BRAIN_KEY:-}"
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BRAIN_KEY_FILE="${HOME}/.claude/brain.key"
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STATE_FILE="${HOME}/.claude/sessions/scratchpad.md"
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THREE_HOURS=10800
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# Load API key from file if not in env
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if [[ -z "$BRAIN_KEY" && -f "$BRAIN_KEY_FILE" ]]; then
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BRAIN_KEY=$(cat "$BRAIN_KEY_FILE" 2>/dev/null | tr -d '[:space:]')
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fi
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# --- OpenBrain Recall ---
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if [[ -n "$BRAIN_KEY" ]]; then
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# Detect project from CWD
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PROJECT=""
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CWD=$(pwd)
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case "$CWD" in
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*/core/go-*) PROJECT=$(basename "$CWD" | sed 's/^go-//') ;;
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*/core/php-*) PROJECT=$(basename "$CWD" | sed 's/^php-//') ;;
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*/core/*) PROJECT=$(basename "$CWD") ;;
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*/host-uk/*) PROJECT=$(basename "$CWD") ;;
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*/lthn/*) PROJECT=$(basename "$CWD") ;;
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*/snider/*) PROJECT=$(basename "$CWD") ;;
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esac
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echo "[SessionStart] OpenBrain: querying memories..." >&2
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# 1. Recent session summaries (what did we do recently?)
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RECENT=$(curl -s --max-time 5 "${BRAIN_URL}/v1/brain/recall" \
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-X POST \
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-H 'Content-Type: application/json' \
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-H 'Accept: application/json' \
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-H "Authorization: Bearer ${BRAIN_KEY}" \
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-d "{\"query\": \"session summary milestone recent work completed\", \"top_k\": 3, \"agent_id\": \"cladius\"}" 2>/dev/null)
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# 2. Project-specific context (if we're in a project dir)
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PROJECT_CTX=""
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if [[ -n "$PROJECT" ]]; then
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PROJECT_CTX=$(curl -s --max-time 5 "${BRAIN_URL}/v1/brain/recall" \
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-X POST \
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-H 'Content-Type: application/json' \
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-H 'Accept: application/json' \
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-H "Authorization: Bearer ${BRAIN_KEY}" \
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-d "{\"query\": \"architecture decisions conventions for ${PROJECT}\", \"top_k\": 3, \"agent_id\": \"cladius\", \"project\": \"${PROJECT}\"}" 2>/dev/null)
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fi
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# Output to stdout (injected into context)
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RECENT_COUNT=$(echo "$RECENT" | python3 -c "import json,sys; d=json.load(sys.stdin); print(len(d.get('memories',[])))" 2>/dev/null || echo "0")
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if [[ "$RECENT_COUNT" -gt 0 ]]; then
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echo ""
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echo "## OpenBrain — Recent Activity"
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echo ""
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echo "$RECENT" | python3 -c "
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import json, sys
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data = json.load(sys.stdin)
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for m in data.get('memories', []):
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t = m.get('type', '?')
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p = m.get('project', '?')
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content = m.get('content', '')[:300]
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print(f'**[{t}]** ({p}): {content}')
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print()
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" 2>/dev/null
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fi
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if [[ -n "$PROJECT" && -n "$PROJECT_CTX" ]]; then
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PROJECT_COUNT=$(echo "$PROJECT_CTX" | python3 -c "import json,sys; d=json.load(sys.stdin); print(len(d.get('memories',[])))" 2>/dev/null || echo "0")
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if [[ "$PROJECT_COUNT" -gt 0 ]]; then
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echo ""
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echo "## OpenBrain — ${PROJECT} Context"
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echo ""
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echo "$PROJECT_CTX" | python3 -c "
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import json, sys
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data = json.load(sys.stdin)
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for m in data.get('memories', []):
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t = m.get('type', '?')
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content = m.get('content', '')[:300]
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print(f'**[{t}]**: {content}')
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print()
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" 2>/dev/null
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fi
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fi
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echo "[SessionStart] OpenBrain: ${RECENT_COUNT} recent + ${PROJECT_COUNT:-0} project memories loaded" >&2
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else
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echo "[SessionStart] OpenBrain: no API key (set CORE_BRAIN_KEY or create ~/.claude/brain.key)" >&2
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fi
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# --- Local Scratchpad ---
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if [[ -f "$STATE_FILE" ]]; then
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FILE_TS=$(grep -E '^timestamp:' "$STATE_FILE" 2>/dev/null | cut -d' ' -f2)
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NOW=$(date '+%s')
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if [[ -n "$FILE_TS" ]]; then
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AGE=$((NOW - FILE_TS))
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if [[ $AGE -lt $THREE_HOURS ]]; then
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echo "[SessionStart] Scratchpad: $(($AGE / 60)) min old" >&2
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echo ""
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echo "## Recent Scratchpad ($(($AGE / 60)) min ago)"
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echo ""
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cat "$STATE_FILE"
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else
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rm -f "$STATE_FILE"
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echo "[SessionStart] Scratchpad: >3h old, cleared" >&2
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fi
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else
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rm -f "$STATE_FILE"
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fi
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fi
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exit 0
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