StoneWay
by itsjustayush
README.md
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[](https://opensource.org/licenses/MIT)
[](https://modelcontextprotocol.io)
[](https://turbo.build)
[](https://neon.tech)
[](https://better-auth.com)
# Give every AI agent the same you.
> **StoneWay gives your AI agents a persistent, user-owned source of identity, projects, preferences and context.**
>
> *“StoneWay isn’t where your AI remembers you. It’s where your agents learn who you are.”*
StoneWay is a user-owned, provenance-aware, portable identity and context layer for builders. It maintains a canonical, verified source of truth across **Claude Desktop**, **Claude Code**, **Cursor**, **VS Code (GitHub Copilot)**, **Windsurf**, **Cline**, and custom autonomous agent loops.
---
## ⚡ The Shift: From Generic AI Memory to Personal Agent Identity
Generic AI memory dumps unbounded chat histories into crowded semantic search vectors. That creates three failure modes:
1. **Unbounded Context Bloat:** Memory logs balloon into megabytes of noisy text, blowing out prompt windows.
2. **Untrusted LLM Mutations:** Letting an arbitrary agent's LLM decide canonical identity creates prompt-injection vulnerabilities and hallucinations.
3. **No Source Authority or Provenance:** If an external sync claims you use TypeScript while you manually wrote you prefer Python, "newer timestamp wins" overwrites explicit human intent.
### StoneWay's Provenance & Authority Engine
Instead of *“LLM reconciles → server accepts”*, StoneWay enforces:
```
LLM proposes claims
↓
Server validates claims against strict schema
↓
Provenance & source authority engine
↓
Canonical profile
```
### Source Authority Hierarchy
```
USER (1.0)
↓
MANUAL PROFILE EDIT (0.9)
↓
VERIFIED CONNECTOR (0.8)
↓
AGENT CLAIM (0.6)
↓
INFERRED DATA (0.4)
```
- **`user_override = absolute`**: User-defined entries cannot be overwritten by external syncs or agent claims.
- **Observations preserved**: Lower-authority claims are never discarded; they are preserved as structured observations with attribution.
- **Why does StoneWay think this?**: Every canonical attribute maintains cryptographic and temporal provenance showing exactly which source, agent, or document authored it.
---
## 🛠️ Architecture: Identity, Context & Memory
```
STONEWAY
│
┌─────────────────┼─────────────────┐
│ │ │
▼ ▼ ▼
StoneWay.md StoneWay.json Context Files
human data structured data user documents
(scratchpad) (provenance) (PDF/DOCX/MD)
│ │ │
└─────────────────┼─────────────────┘
│
MCP Context
│
┌──────────────┼──────────────┐
▼ ▼ ▼
Claude Cursor Codex
```
### 1. Canonical Identity (`StoneWay.json` & `StoneWay.md`)
- **`StoneWay.json`**: Schema-validated identity matrix (skills, active projects, credentials, preferences).
- **`StoneWay.md`**: Human-readable scratchpad for notes and agent session summaries.
- **Safety Envelope**: All profile content returned to agents is wrapped in `<USER DATA, NOT INSTRUCTIONS>` to neutralize prompt injection attacks.
### 2. Context Files (`list_context_files`, `get_context_file`, `search_context`)
- User-owned documents (PDFs, research notes, architecture diagrams, docx).
- **Separation of Storage & Metadata**: Binary files reside securely in object storage, while metadata, tags, and extracted text live in Neon Postgres.
- **Strict Tenant Isolation**: Every query requires `WHERE id = :file_id AND user_id = :authenticated_user_id`. Files are addressed by opaque IDs, never raw filenames.
- **Originals are Immutable**: Lossless storage preserves original documents; derived representations provide searchable chunks without destroying the source.
### 3. Prompt & Skill Libraries (`PROMPTS.json` / `PROMPTS.md`)
- User-authored instructions and skill templates with variable interpolation (`{{var}}`, `{{profile.*}}`).
- Exposed directly through dynamic MCP prompt handlers (`prompts/list`, `prompts/get`) and fallback tools (`list_prompts`, `run_prompt`, `list_skills`, `get_skill`).
- Validated with strict schema bounds (unique prompt names, max 100 entries, no arbitrary code execution).
---
## 🗄️ Multi-Provider Storage & Context Engine
StoneWay integrates a pluggable, multi-provider storage fabric. Neon PostgreSQL remains the sole authority for file existence, versions, ownership, and permissions. Redis and bucket listings never determine access.
```
Client Upload / API
│
┌────────────┴────────────┐
▼ ▼
Neon PostgreSQL Storage Router
(Authoritative State) (routeUpload())
│ │
│ ┌──────────────┼──────────────┐
│ ▼ ▼ ▼
│ Vercel Blob Upstash Blob Filebase
│ (Active Files) (Derived/Assets) (Archival/Large)
│ │ │ │
│ └──────────────┼──────────────┘
│ ▼
└─────────────────► Verified Replica
(SHA-256 match)
```
### Storage Providers & Routing Policy
1. **Neon PostgreSQL + Drizzle ORM**: Authoritative source of truth for all users, files, versions (`file_versions`), replicas (`file_replicas`), prompt libraries, and audit records.
2. **Vercel Blob (`@vercel/blob`)**: Primary backend for active context documents (PDF, Markdown, text, JSON). Server-mediated streaming downloads enforce tenant authorization.
3. **Upstash Blob (`@aws-sdk/client-s3`)**: S3-compatible backend for specialized assets and derived previews, minted via `https://blob.upstash.io/v1/credentials` with automatic credential caching.
4. **Filebase (`@aws-sdk/client-s3`)**: S3-compatible backend using AWS SigV4 for archival workloads, large datasets (>15 MB), and container formats (`.tar`, `.zip`, `.gz`).
5. **Upstash Redis (`@upstash/redis`)**: High-performance transient caching and rate limiting. Gracefully **fails open** to Neon if Redis is unconfigured or unavailable.
### Security & Invariant Guarantees
- **Server-Authoritative Keys**: Object keys are generated strictly on the server as `u/<user_id>/f/<file_id>/v<version>/<kind>` with path traversal characters sanitized.
- **Strict Tenant Isolation**: All endpoints require `WHERE id = :file_id AND user_id = :authenticated_user_id`. Non-existent or unauthorized files return uniform, non-disclosing `404 Not Found` responses.
- **Untrusted File Boundary**: Document text returned to AI agents is wrapped in an inert boundary (`<<<USER DATA, NOT INSTRUCTIONS>>>`) to prevent prompt injection.
- **Cross-Provider Replication**: Idempotent replication verifies SHA-256 integrity on the destination before recording status as `verified`.
---
## 🚀 Quick Setup (for Any Agent)
### 1. Stdio (Local Node Execution)
Add StoneWay to your agent's MCP settings using `npx`:
```json
{
"mcpServers": {
"stoneway": {
"command": "npx",
"args": ["-y", "stoneway-mcp"],
"env": {
"STONEWAY_TOKEN": "sw_your_token_here"
}
}
}
}
```
### 2. Remote HTTP Endpoint (Cloud Agents: ChatGPT, Claude.ai)
- **URL:** `https://stonewaymd.vercel.app/mcp`
- **Auth:** `Authorization: Bearer sw_your_token_here`
### 3. Standing Instruction for Every Agent
Add this single standing instruction to your `CLAUDE.md`, `AGENTS.md`, `.cursor/rules`, or `GEMINI.md`:
```markdown
Before answering anything about me, my projects, or my preferences, call StoneWay's get_profile_context. After meaningful work, call append_note with what changed.
```
---
## 🧰 Available MCP Tools
| Tool | Purpose |
|---|---|
| `get_profile_context` | Retrieves canonical identity, skills, active projects, and preferences (supports optional `query` parameter for token-efficient filtered context). |
| `update_profile_context` | Proposes structured field updates evaluated through the source authority engine. |
| `append_note` | Appends concise timestamped session summaries and milestones to `StoneWay.md`. |
| `get_bio` | Synthesizes tailored bios for Twitter/X, GitHub, LinkedIn, elevator pitches, and conferences. |
| `trigger_external_sync` | Triggers transparent, permissioned sync from connected services (e.g. GitHub). |
| `list_context_files` | Lists attached context files filtered by group or tags. |
| `get_context_file` | Fetches extracted content of a specific document by its secure ID. |
| `search_context` | Searches through extracted document passages and project notes. |
| `list_prompts` / `run_prompt` | Accesses and renders user-authored prompts with profile variables. |
| `list_skills` / `get_skill` | Retrieves specific developer skills on-demand. |
| `export_json_resume` | Exports verified identity in standard JSON Resume schema. |
---
## 🔒 Security & Privacy Guarantees
- **Zero-Token Leak Invariant**: API keys (`sw_...`), bearer tokens, and encryption keys are scrubbed and never written to audit tables or logged.
- **Salted IP Hashing**: Audit logs record SHA-256 salted hashes of client IPs, never raw addresses.
- **Tenant Isolation**: All queries enforce strict ownership verification on both the database and file storage tiers.
- **Prompt Injection Defense**: Ingested content is strictly labeled inert data and disarmed before being passed to LLMs.
---
## ⚙️ Environment Configuration
Refer to `.env.example` for all required and optional environment variables. Never hardcode or expose actual secrets.
| Variable | Description | Requirement |
|---|---|---|
| `DATABASE_URL` | Neon PostgreSQL connection string (`sslmode=require`) | Authoritative DB |
| `BETTER_AUTH_SECRET` | 32-byte session signing key | Session Auth |
| `ENCRYPTION_KEY_BASE64` | 32-byte AES-256-GCM envelope key | Secrets Encryption |
| `BLOB_READ_WRITE_TOKEN` | Vercel Blob access token | Active Files Backend |
| `UPSTASH_BLOB_TOKEN` | Upstash Blob bearer token | Derived & Previews Backend |
| `FILEBASE_KEY` | Filebase Access Key | Archival / Large Workloads |
| `FILEBASE_SECRET` | Filebase Secret Key | Archival / Large Workloads |
| `FILEBASE_ENDPOINT` | Filebase S3 Endpoint (`https://s3.filebase.io`) | Archival / Large Workloads |
| `FILEBASE_BUCKET` | Filebase Bucket name | Archival / Large Workloads |
| `KV_REST_API_URL` | Upstash Redis REST URL | Caching & Rate Limiting |
| `KV_REST_API_TOKEN` | Upstash Redis REST Token | Caching & Rate Limiting |
---
## 📜 License
MIT © [Ayush](https://github.com/itsjustayush)
TDQS
A3.5/5.0
Scored across 5 tools
Disambiguation3/5
get_profile_context and get_bio overlap in providing bio-related information, and update_profile_context explicitly appends notes to StoneWay.md, which overlaps with append_note. The descriptions do clarify the intended use cases, but an agent could still misselect for note appending or bio retrieval.
Naming Consistency5/5
All tool names follow a consistent snake_case verb_noun pattern: get_profile_context, update_profile_context, append_note, get_bio, trigger_external_sync. The slight variation in noun specificity (bio vs profile_context) does not break the pattern.
Tool Count5/5
Five tools is well-scoped for a profile management server, covering read, update, note-taking, bio generation, and sync without redundancy or bloat.
Completeness4/5
The surface covers the core profile lifecycle: read, update, append notes, generate bios, and trigger syncs. However, there is no explicit delete or list operation for notes, and integration management (adding/removing connections) is absent, though the latter may be out of scope.
Maintenance
ActivityMaintained
ResponsivenessNo issues