Your AI agents forget everything.
BrainSync remembers.
Persistent memory for every AI coding agent. Zero config. Zero API keys. Zero cloud. $0 by default.
$ brainsync → 47 observations captured silently
// Tuesday — Different IDE, different agent
$ agent.recall("auth architecture")
✓ 12 relevant memories found — 0ms cold start
// Your agent picks up exactly where you left off.
// No re-explaining. No context dump. No tokens wasted.
$ tokens_saved: ~147,000 this week
The Problem
Every AI agent has the same fatal flaw: amnesia
Session ends → GONE
Tuesday: Same agent. Same project.
Knows absolutely nothing.
Tuesday: You re-explain everything. Again.
Wednesday: Repeat. Forever.
// You're not coding with an AI partner.
// You're coding with an amnesiac.
Endless Re-Explaining
Every session starts from scratch. Your agent forgets architecture decisions, coding conventions, and hard-won debugging insights.
Wasted Tokens
You burn thousands of tokens per session just rebuilding context that already existed yesterday.
Agent Lock-In
Switch from Cursor to Claude Code? Start over. Your project knowledge is trapped in a single session, in a single tool.
Repeated Mistakes
Your agent hits the same gotcha on Friday that you fixed on Monday. Because it has no memory that the gotcha exists.
Architecture
Four pillars. Zero servers. Zero cloud.
BrainSync runs entirely inside your VS Code extension host. No background daemons, no ports, no external dependencies.
Observation Engine™
Captures project intelligence from 4 live sources — file diffs, terminal output, editor focus, and diagnostics. Classifies into 9 semantic categories using a zero-cost heuristic classifier. No LLM. No API. No tokens.
4 SOURCES · 9 CATEGORIESIntelligence Cortex
20 self-learning modules that think — not just store. Auto-compiled skills, custom skill packs, SafetyGuard injection, error→fix pairs, pattern detection, semantic code search, daily briefings, and more. All running locally.
20 MODULES · AUTO SKILLS · SAFETYGUARDMemory Vaults
Per-project isolated SQLite databases with FTS5 search, 384-dim semantic embeddings, knowledge graph, and codebase vector index. Gotchas are sacred — never auto-pruned.
FTS5 · ONNX · KNOWLEDGE GRAPHUniversal Agent Sync
Generates agent-native context files for 6+ IDEs. An observation saved in Cursor is available in Claude Code 200ms later. Auto-configures MCP for 5 IDEs. Zero setup.
6+ AGENTS · 200MS SYNCIntelligent Skills Engine
Auto Skills + Custom Skills. No other tool has this.
Claude Code has memory files. We have a self-learning skills engine that auto-compiles coding patterns into reusable skill packs — and lets you create your own.
Self-Compiled from Observations
BrainSync watches your coding patterns. When 2+ similar observations cluster together, it automatically compiles them into a reusable SKILL.md — injected into every agent session.
- → TF-IDF clustering detects patterns
- → Compiles every 10 minutes
- → Auto-routed by file type
- → Enable/disable per skill
Your Rules, Your Packages
Create professional skill packs with rules, references, and scripts. Define "UI Design" or "API Conventions" once — agents auto-receive the rules when touching matching files.
- → SKILL.md with YAML frontmatter
- → references/ for deep docs
- → scripts/ for automation
- → Trigger globs for auto-routing
Plan Before You Code
Before major tasks, agents are prompted to create a convention skill FIRST — establishing patterns before writing code. Every connected agent follows the same playbook.
- → Agents create skills proactively
- → Conventions defined before code
- → All IDEs share the same rules
- → Consistency across sessions
├── SKILL.md← Rules + trigger globs
├── references/← Deep docs on-demand
│ └── guidelines.md
└── scripts/← Automation helpers
Integration Bridge
Extensive Capabilities. $0/query. 100% offline.
The most comprehensive functional suite for agent memory. Every capability executes locally — no API keys, no cloud, no cost.
Memory Core
- → Semantic search queries
- → Auto-conflict detection
- → Bulk observation capture
- → Full project context dump
- → Critical warning retrieval
- → Automated memory compaction
Knowledge Graph
- → Graph node generation
- → Entity relationship mapping
- → Observation enrichment
- → O(1) graph traversal
Code & Search
- → Offline ONNX semantic search
- → Vector codebase embeddings
- → Safe AST block replacement
- → Regex symbol search
- → Real-time diagnostics
- → Uncommitted diff sync
Analytics
- → Auto-generated daily briefings
- → Agent capability utilization
- → Session metric tracking
Global Memory
- → Cross-project knowledge share
- → Global semantic recall
- → Permanent memory pinning
- → Bookmark retrieval
- → Local git tree awareness
Utilities
- → Instant memory snapshots
- → Checkpoint rollback triggers
- → Free LLM reasoning offload
- → Free code analysis
- → External docs resolution
- → Auto-skill management
Universal Compatibility
Works with every agent you use
An observation saved in one IDE is available in every other — instantly. No cloud. No webhooks.
Privacy
Local by design. Not by afterthought.
100% Local Storage
Your data never touches a server. Period. Verify with Wireshark — zero outbound HTTP.
Auto Secret Filtering
API keys, passwords, tokens, and private keys are automatically stripped before storage.
One-Click Wipe
Full memory clear, JSON export, and project isolation. You own your data completely.
Destructive Command Protection
Safety rules injected into every agent's rules file. Your agents can't accidentally nuke your project.
Project Isolation
Each project has its own isolated database. Zero cross-contamination. Zero shared state.
99% Offline
Core engine is fully offline. Optional AI tools use free services. Internet is never required.
Comparison
How BrainSync stacks up
| Feature | Claude-Mem | ContextVault | Cline Memory | CodeFire | BrainSync |
|---|---|---|---|---|---|
| Install | CLI plugin | MCP setup | Manual files | MCP setup | VS Code → Install |
| Works in | Claude only | MCP agents | Cline only | Any MCP | 6+ agents auto-synced |
| Background Server | Express.js | MCP server | None | ❓ | None |
| External API Cost | Agent SDK ($) | $0 | $0 | ❓ | $0 |
| MCP Tools | None | ~6 | None | ~10 | ✓ Integration Cortex |
| Knowledge Graph | — | — | — | — | ✓ Entity-Relation |
| Semantic Code Search | — | — | — | Cloud | ✓ Offline ONNX |
| Error→Fix Pairs | — | — | — | — | ✓ Auto-pairs |
| Daily Briefings | — | — | — | — | ✓ Auto-generated |
| Global Memory | — | — | — | — | ✓ Cross-project |
| Auto Skills | — | — | — | — | ✓ Self-compiled |
| Custom Skills | — | — | — | — | ✓ Skill packs + triggers |
| SafetyGuard | — | — | — | — | ✓ Injected auto-rules |
| License | AGPL-3.0 | MIT | Apache-2.0 | ❓ | Proprietary |
| Cost/query | ~$0.001 | $0 | $0 | $0 | $0 |
Stop re-explaining.
Start remembering.
Install BrainSync. Code normally. Your agents remember everything — forever.