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Feat/ruvector postgres v2 (#82)
* feat(postgres): Add RuVector Postgres v2 implementation plan Complete specification for RuVector Postgres v2 with: Architecture: - PostgreSQL extension (pgrx) with hybrid architecture - SQL handles ACID/joins, RuVector engine handles vectors/graphs/learning - Backward compatible with pgvector SQL surface - Shared memory IPC with bounded contracts (64KB inline, 16MB shared) 4-Phase Implementation: - Phase 1: pgvector-compatible search (1a: function-based, 1b: Index AM) - Phase 2: Tiered storage with compression and exactness GUC - Phase 3: Graph engine with Cypher and SQL join keys - Phase 4: Dynamic mincut integrity gating (key differentiator) Key Technical Details: - lambda_cut: Minimum cut value via Stoer-Wagner (PRIMARY integrity metric) - lambda2: Algebraic connectivity (OPTIONAL drift signal) - DIFFERENT from mincut! - Contracted operational graph (~1000 nodes) - never compute on full similarity graph - Hysteresis model with consecutive samples and cooldown - Operation risk classification (Low/Medium/High) - MVCC visibility with incremental paging API - WAL replay with idempotency and LSN ordering - Partition map versioning and epoch fencing for cluster mode Files: - 00-overview.md: Architecture, consistency contract, benchmark spec - 01-sql-schema.md: SQL schema and types - 02-background-workers.md: IPC contract, mincut worker - 03-index-access-methods.md: Index AM specification - 04-integrity-events.md: Events, hysteresis, operation classes - 05-phase1-pgvector-compat.md: Phase 1a/1b incremental path - 06-phase2-tiered-storage.md: Tiered storage with GUC exactness - 07-phase3-graph-cypher.md: Graph engine with SQL joins - 08-phase4-integrity-control.md: Mincut gating with Stoer-Wagner - 09-migration-guide.md: Migration from pgvector - 10-consistency-replication.md: Consistency and replication model 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> * docs(postgres): Rewrite v2 overview with compelling framing Replace technical executive summary with clear explanation of why RuVector matters: - From symptom monitoring to causal monitoring - Mincut as leading indicator, not metric - Algorithm becomes control signal (control plane, not analytics) - Failure mode class change: cascading → graceful degradation - Explainable operations via witness edges Key message: "We're not making vector search faster. We're making vector infrastructure survivable." 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> * feat(postgres): Add hybrid search, multi-tenancy, and self-healing specs Three high-impact additions to RuVector Postgres v2: ## 11-hybrid-search.md - BM25 + Vector Fusion - Single query combines semantic and keyword search - Proper BM25 implementation (not just ts_rank) - Fusion algorithms: RRF (default), linear, learned - Integrity-aware degradation (stress → single branch) - Parallel branch execution - GUC configuration ## 12-multi-tenancy.md - First-Class Tenant Isolation - SET ruvector.tenant_id for transparent scoping - Isolation levels: shared, partition, dedicated - Automatic promotion based on vector count - Per-tenant integrity (stress in one doesn't affect others) - Per-tenant contracted graphs - Resource quotas and rate limiting - Fair scheduling (no noisy neighbors) - RLS integration for defense in depth ## 13-self-healing.md - Automated Remediation - Completes the control loop: sensor → actuator - Problem classification from witness edges: - Hotspot congestion - Centroid skew - Replication lag - Maintenance contention - Index fragmentation - Memory pressure - Built-in strategies: - Rebalance partitions - Pause maintenance jobs - Throttle ingestion - Scale read replicas (K8s) - Compact fragmented indexes - Safety: reversible actions, blast radius limits - Learning: outcome tracking, strategy weight updates - The key insight: "We built the sensor. Now we build the actuator." 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> * feat(intelligence): Add self-learning intelligence layer with v3 features Comprehensive intelligence system for Claude Code hooks: Core Features (v2): - VectorMemory with @ruvector/core native HNSW (150x faster) - Hyperbolic distance (Poincaré ball) for hierarchical embeddings - ReasoningBank with Q-learning and pattern decay (7-day half-life) - Confidence Calibration tracking (predicted vs actual accuracy) - A/B Testing with 10% holdout for measuring intelligence lift - Feedback Loop for tracking suggestion follow-through - Active Learning for identifying uncertain states v3 Improvements: - Error Pattern Learning (Rust E0xxx, TypeScript TSxxxx, npm errors) - File Sequence Learning (tracks which files are edited together) - Test Suggestion Triggers (suggests cargo test after source edits) - Hive-Mind swarm coordination (11 agents, 38 edges) Pretrained from memory.db: - 7,697 commands processed - 4,023 vector memories - 117 Q-table states with decay metadata - 8,520 calibration samples Anti-overfitting measures: - Q-values capped at 0.8, floored at -0.5 - Decaying learning rate: 0.3/sqrt(count) - Pattern decay with timestamps 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> * fix(intelligence): Fix Q-table lookups - learning now has real effect Three critical bugs were preventing the intelligence layer from using learned patterns: 1. State format mismatch: CLI used spaces ("editing rs in project") but Q-table used underscores ("edit_rs_in_project") - Fixed in cli.js: all states now use underscore format 2. stateKey() hyphen normalization: Function converted hyphens to underscores, but Q-table keys had hyphens (e.g. "ruvector-core") - Fixed regex: /[^a-z0-9-]+/g preserves hyphens 3. A/B testing control group: 10% random sessions ignored learning - Reduced holdout to 5% with persistent session assignment - Added INTELLIGENCE_MODE=treatment env override for development Result: Agent recommendations now show 80% confidence for Rust files using learned Q-values, instead of 0% with random selection. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> * fix(hooks): Display intelligence guidance to Claude in foreground Critical fix: PreToolUse hooks were running in background (&) which meant Claude never saw the intelligence output. Now: - PreToolUse: Foreground execution (Claude sees guidance) - pre-edit: Shows recommended agent + confidence + similar edits - pre-command: Shows command patterns + suggestions - Added 3s timeout to prevent blocking - PostToolUse: Background execution (async learning) - post-edit: Records success/failure, learns patterns - post-command: Captures errors, updates Q-values - SessionStart: New hook shows learned patterns at session start - Displays pattern count, memory stats - Shows top 3 learned state-action pairs with Q-values Claude now receives self-learning guidance like: "🧠 Intelligence Analysis: 📁 ruvector-core/lib.rs 🤖 Recommended: rust-developer (80% confidence) 📚 3 similar past edits found" 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
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‎.claude/hooks/bench-runner.sh‎

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#!/bin/bash
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# Benchmark runner with baseline comparison for RuVector
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# Integrates with criterion benchmarks and stores results
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set -e
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CRATE="${1:-all}"
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BASELINE_DIR="/workspaces/ruvector/.claude-flow/metrics/benchmarks"
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mkdir -p "$BASELINE_DIR"
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cd /workspaces/ruvector
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echo "📊 RuVector Benchmark Runner"
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echo "============================"
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echo ""
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run_bench() {
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local crate=$1
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local bench_name=$2
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local output_file="$BASELINE_DIR/${crate}-$(date +%Y%m%d-%H%M%S).json"
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echo "🏃 Running: cargo bench -p $crate"
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# Run benchmark and capture output
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if cargo bench -p "$crate" -- --noplot 2>&1 | tee /tmp/bench-output.txt; then
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# Extract timing info from criterion output
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grep -E "time:" /tmp/bench-output.txt | head -10
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# Store raw output
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cp /tmp/bench-output.txt "$output_file.txt"
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echo ""
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echo "📁 Results saved to: $output_file.txt"
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else
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echo "⚠️ Benchmark failed for $crate"
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fi
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}
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case "$CRATE" in
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"all")
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echo "Running all available benchmarks..."
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echo ""
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# Core benchmarks
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if [ -d "crates/ruvector-bench" ]; then
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run_bench "ruvector-bench" "core"
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fi
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# MinCut benchmarks
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if [ -d "crates/ruvector-mincut" ]; then
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run_bench "ruvector-mincut" "mincut"
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fi
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# Attention benchmarks
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if [ -d "crates/ruvector-attention" ]; then
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run_bench "ruvector-attention" "attention"
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fi
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;;
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"core"|"ruvector-bench")
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run_bench "ruvector-bench" "core"
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;;
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"mincut"|"ruvector-mincut")
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run_bench "ruvector-mincut" "mincut"
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;;
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"attention"|"ruvector-attention")
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run_bench "ruvector-attention" "attention"
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;;
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"graph"|"ruvector-graph")
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run_bench "ruvector-graph" "graph"
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;;
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"quick")
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echo "Running quick sanity benchmarks..."
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cargo bench -p ruvector-bench -- --noplot "insert" 2>&1 | tail -10
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;;
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*)
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echo "Usage: $0 [all|core|mincut|attention|graph|quick|<crate-name>]"
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echo ""
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echo "Available benchmark crates:"
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echo " core/ruvector-bench - Core vector operations"
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echo " mincut - Min-cut algorithms"
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echo " attention - Attention mechanisms"
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echo " graph - Graph operations"
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echo " quick - Fast sanity check"
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exit 1
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;;
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esac
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echo ""
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echo "✅ Benchmarks complete"
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echo "📁 Results in: $BASELINE_DIR/"

‎.claude/hooks/crate-context.sh‎

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#!/bin/bash
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# Load crate-specific context for intelligent code assistance
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# Outputs relevant examples, tests, and documentation paths
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set -e
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FILE="$1"
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if [ -z "$FILE" ]; then
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echo "Usage: $0 <file_path>"
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exit 1
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fi
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cd /workspaces/ruvector
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# Detect crate from file path
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CRATE_DIR=$(echo "$FILE" | grep -oP "crates/[^/]+" | head -1 || echo "")
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CRATE_NAME=""
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if [ -n "$CRATE_DIR" ]; then
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CRATE_NAME=$(basename "$CRATE_DIR")
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fi
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echo "{"
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echo " \"file\": \"$FILE\","
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echo " \"crate\": \"$CRATE_NAME\","
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# Find related test files
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echo " \"tests\": ["
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TESTS=$(find "$CRATE_DIR/tests" -name "*.rs" 2>/dev/null | head -5 | while read f; do echo " \"$f\","; done | sed '$ s/,$//')
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echo "$TESTS"
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echo " ],"
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# Find related examples
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echo " \"examples\": ["
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EXAMPLES=$(find "$CRATE_DIR/examples" -name "*.rs" 2>/dev/null | head -5 | while read f; do echo " \"$f\","; done | sed '$ s/,$//')
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if [ -z "$EXAMPLES" ]; then
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# Check examples/ directory at root
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case "$CRATE_NAME" in
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"ruvector-core"|"ruvector-wasm")
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EXAMPLES=$(find "examples/wasm" "examples/wasm-react" -name "*.ts" -o -name "*.tsx" 2>/dev/null | head -3 | while read f; do echo " \"$f\","; done | sed '$ s/,$//')
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;;
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"ruvector-graph"*)
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EXAMPLES=$(find "examples" -path "*graph*" -name "*.rs" 2>/dev/null | head -3 | while read f; do echo " \"$f\","; done | sed '$ s/,$//')
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;;
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"ruvector-mincut"*)
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EXAMPLES=$(find "examples/mincut" -name "*.rs" 2>/dev/null | head -3 | while read f; do echo " \"$f\","; done | sed '$ s/,$//')
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;;
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esac
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fi
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echo "$EXAMPLES"
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echo " ],"
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# Find related documentation
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echo " \"docs\": ["
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DOCS=$(find "$CRATE_DIR" -name "*.md" 2>/dev/null | head -5 | while read f; do echo " \"$f\","; done | sed '$ s/,$//')
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if [ -z "$DOCS" ]; then
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case "$CRATE_NAME" in
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"ruvector-postgres"*)
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DOCS=$(find "docs/postgres" -name "*.md" 2>/dev/null | head -5 | while read f; do echo " \"$f\","; done | sed '$ s/,$//')
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;;
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"rvlite")
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DOCS=$(find "crates/rvlite/docs" -name "*.md" 2>/dev/null | head -5 | while read f; do echo " \"$f\","; done | sed '$ s/,$//')
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;;
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esac
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fi
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echo "$DOCS"
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echo " ],"
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# Key dependencies
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echo " \"key_deps\": ["
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if [ -f "$CRATE_DIR/Cargo.toml" ]; then
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grep -E "^\[dependencies\]" -A 20 "$CRATE_DIR/Cargo.toml" 2>/dev/null | grep -E "^[a-z]" | head -5 | while read line; do
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DEP=$(echo "$line" | cut -d'=' -f1 | tr -d ' ')
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echo " \"$DEP\","
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done | sed '$ s/,$//'
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fi
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echo " ],"
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# Suggest related commands
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echo " \"commands\": {"
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case "$CRATE_NAME" in
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"ruvector-core"|"ruvector-bench")
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echo " \"test\": \"cargo test -p $CRATE_NAME\","
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echo " \"bench\": \"cargo bench -p ruvector-bench\","
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echo " \"check\": \"cargo check -p $CRATE_NAME\""
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;;
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"rvlite"|"ruvector-wasm"|"ruvector-graph-wasm"|"ruvector-gnn-wasm")
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echo " \"build\": \"wasm-pack build --target web --release\","
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echo " \"test\": \"wasm-pack test --headless --chrome\","
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echo " \"size\": \".claude/hooks/wasm-size-check.sh $CRATE_NAME\""
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;;
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"ruvector-postgres")
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echo " \"build\": \"cargo pgrx package\","
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echo " \"test\": \"cargo pgrx test\","
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echo " \"run\": \"cargo pgrx run\""
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;;
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*)
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echo " \"test\": \"cargo test -p $CRATE_NAME\","
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echo " \"check\": \"cargo check -p $CRATE_NAME\""
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;;
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esac
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echo " }"
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echo "}"

‎.claude/hooks/post-rust-edit.sh‎

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#!/bin/bash
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# Post-edit hook for Rust files in RuVector
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# Runs format check, clippy, and optional benchmarks
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set -e
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FILE="$1"
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RUN_BENCH="${2:-false}"
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if [ -z "$FILE" ]; then
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echo "Usage: $0 <file_path> [run_bench]"
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exit 1
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fi
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EXT="${FILE##*.}"
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if [ "$EXT" != "rs" ]; then
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exit 0 # Not a Rust file
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fi
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cd /workspaces/ruvector
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# Detect crate
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CRATE_DIR=$(echo "$FILE" | grep -oP "crates/[^/]+" | head -1 || echo "")
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CRATE_NAME=""
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if [ -n "$CRATE_DIR" ]; then
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CRATE_NAME=$(basename "$CRATE_DIR")
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fi
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echo "🦀 Post-edit checks for: $FILE"
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# 1. Format check (don't auto-fix, just report)
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echo ""
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echo "📐 Checking format..."
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if cargo fmt --check -- "$FILE" 2>/dev/null; then
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echo " ✅ Format OK"
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else
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echo " ⚠️ Format issues detected (run: cargo fmt)"
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fi
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# 2. Quick clippy check for the crate
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if [ -n "$CRATE_NAME" ]; then
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echo ""
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echo "📎 Running clippy for $CRATE_NAME..."
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CLIPPY_OUT=$(cargo clippy -p "$CRATE_NAME" --message-format=short 2>&1 | grep -E "^(warning|error)" | head -5)
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if [ -z "$CLIPPY_OUT" ]; then
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echo " ✅ No clippy warnings"
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else
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echo "$CLIPPY_OUT"
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fi
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fi
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# 3. Check for test file and suggest tests
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TEST_FILE="${FILE%.rs}_test.rs"
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if [ -f "$TEST_FILE" ]; then
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echo ""
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echo "🧪 Test file exists: $TEST_FILE"
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fi
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# 4. WASM size check for wasm crates
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if echo "$FILE" | grep -qE "wasm|rvlite"; then
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echo ""
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echo "📏 WASM crate modified - consider running:"
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echo " cd crates/rvlite && wasm-pack build --release"
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echo " ls -lh pkg/*.wasm"
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fi
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# 5. Optional benchmark for performance-critical crates
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if [ "$RUN_BENCH" = "true" ]; then
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case "$CRATE_NAME" in
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"ruvector-core"|"ruvector-bench")
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echo ""
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echo "📊 Running benchmarks..."
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cargo bench -p ruvector-bench -- --noplot 2>&1 | tail -20
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;;
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"ruvector-mincut")
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echo ""
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echo "📊 Running mincut benchmarks..."
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cargo bench -p ruvector-mincut -- --noplot 2>&1 | tail -20
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;;
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"ruvector-attention")
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echo ""
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echo "📊 Running attention benchmarks..."
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cargo bench -p ruvector-attention -- --noplot 2>&1 | tail -20
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;;
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esac
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fi
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# Store metrics
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METRICS_DIR="/workspaces/ruvector/.claude-flow/metrics"
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mkdir -p "$METRICS_DIR"
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# Record edit in metrics
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echo "{\"file\": \"$FILE\", \"crate\": \"$CRATE_NAME\", \"timestamp\": \"$(date -Iseconds)\"}" >> "$METRICS_DIR/edit-log.jsonl"
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echo ""
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echo "✅ Post-edit checks complete"

‎.claude/hooks/rust-check.sh‎

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#!/bin/bash
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# Rust-specific pre-edit hook for RuVector
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# Runs cargo check, clippy hints, and detects crate context
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set -e
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FILE="$1"
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if [ -z "$FILE" ]; then
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echo "Usage: $0 <file_path>"
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exit 1
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fi
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EXT="${FILE##*.}"
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if [ "$EXT" != "rs" ]; then
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exit 0 # Not a Rust file
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fi
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cd /workspaces/ruvector
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# Detect which crate this file belongs to
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CRATE_DIR=$(echo "$FILE" | grep -oP "crates/[^/]+" | head -1 || echo "")
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CRATE_NAME=""
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if [ -n "$CRATE_DIR" ]; then
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CRATE_NAME=$(basename "$CRATE_DIR")
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echo "🦀 Crate: $CRATE_NAME"
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# Show crate-specific context
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case "$CRATE_NAME" in
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"ruvector-core")
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echo " 📊 Core vector engine (HNSW, SIMD, quantization)"
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echo " 📦 Key: VectorStore, HnswIndex, Distance metrics"
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;;
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"rvlite")
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echo " 🌐 WASM standalone DB (SQL/SPARQL/Cypher)"
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echo " 📦 Key: RvLite, SqlExecutor, CypherParser"
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echo " ⚠️ Size target: <3MB gzipped"
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;;
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"ruvector-wasm")
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echo " 🌐 WASM bindings for ruvector-core"
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echo " 📦 Key: WasmVectorStore, IndexedDB storage"
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;;
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"ruvector-graph"|"ruvector-graph-wasm"|"ruvector-graph-node")
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echo " 🕸️ Graph database with Cypher support"
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echo " 📦 Key: GraphStore, CypherQuery, HyperEdge"
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;;
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"ruvector-gnn"|"ruvector-gnn-wasm"|"ruvector-gnn-node")
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echo " 🧠 Graph Neural Networks (GCN, GraphSAGE, GAT)"
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echo " 📦 Key: GnnLayer, MessagePassing, Aggregation"
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;;
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"ruvector-postgres")
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echo " 🐘 PostgreSQL extension (pgvector compatible)"
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echo " 📦 Key: pgrx, SQL functions, background workers"
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;;
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"sona")
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echo " 🎓 ReasoningBank with 9 RL algorithms"
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echo " 📦 Key: Trajectory, Verdict, LoRA, EWC++"
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;;
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"ruvector-mincut"|"ruvector-mincut-wasm"|"ruvector-mincut-node")
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echo " ✂️ Subpolynomial dynamic min-cut algorithm"
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echo " 📦 Key: ContractedGraph, LambdaCut, SparseCertificate"
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;;
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"ruvector-attention"|"ruvector-attention-wasm"|"ruvector-attention-node")
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echo " 👁️ 39+ attention mechanisms"
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echo " 📦 Key: MultiHeadAttention, GeometricAttention"
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;;
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"ruvector-tiny-dancer"|"ruvector-tiny-dancer-wasm"|"ruvector-tiny-dancer-node")
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echo " 💃 FastGRNN neural router for agents"
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echo " 📦 Key: Router, FastGRNN, CircuitBreaker"
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;;
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"ruvector-cli")
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echo " ⌨️ CLI and MCP server"
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echo " 📦 Key: Commands, MCP protocol, REST API"
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;;
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*)
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echo " 📦 Crate: $CRATE_NAME"
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;;
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esac
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# Quick cargo check for the specific crate
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echo ""
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echo "🔍 Running cargo check -p $CRATE_NAME..."
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if cargo check -p "$CRATE_NAME" --message-format=short 2>&1 | head -10; then
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echo "✅ Cargo check passed"
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else
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echo "⚠️ Check for warnings/errors above"
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fi
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fi
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# Check for WASM-related files
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if echo "$FILE" | grep -qE "wasm|rvlite"; then
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echo ""
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echo "📏 WASM file detected - size considerations apply"
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echo " Target: <3MB gzipped for rvlite"
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fi
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echo ""

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