Weavatrix Online

Take repository intelligence across a network without handing the network your repository.

Weavatrix Online is the MIT-licensed MCP connector for Weavatrix Cloud and compatible customer-controlled endpoints. It keeps analysis local, produces an inspectable source-free payload, and requires an exact short-lived confirmation before that payload can leave the machine.

The complete Online profile exposes 52 MCP tools:

• 34 local repository-intelligence tools from weavatrix-js;
• 11 preview, apply, and rollback tools from weavatrix-refactor;
• 7 Online tools for endpoint discovery, advisories, malware review, architecture contracts, and controlled synchronization.

Installing or starting Online does not synchronize anything. preview_sync makes no network request; sync_graph accepts only the still-valid preview for the same repository, destination, payload, and graph.

Choose the right Weavatrix package

| Product | Install | Boundary | | --- | --- | --- | | weavatrix | npm or Cargo | Native local-first MCP product. Both package managers distribute the same local Weavatrix server and engine. | | weavatrix-rust | Cargo | Protocol-independent Rust repository-intelligence engine for library and CLI use; it does not own MCP transport. | | weavatrix-online | npm | This optional network-capable MCP composition: local analysis and refactoring plus source-free Cloud/self-hosted workflows. |

Online currently composes the public JavaScript packages directly:

weavatrix-online 0.3.1
  ├─ weavatrix-refactor 0.1.x
  └─ weavatrix-js 0.3.x

It does not proxy the native weavatrix executable and does not copy either engine. Use weavatrix when the graph must remain entirely local. Use weavatrix-online when endpoint status, remotely managed architecture contracts, advisory refresh, or explicit source-free synchronization is part of the workflow.

Install and run

Run the pinned release without a global install:

npx -y [email protected] C:\path\to\repository

The command starts a stdio MCP server. The first positional argument is the repository to analyze. An existing graph can be supplied explicitly:

npx -y [email protected] C:\graphs\repository\graph.json C:\path\to\repository

The npm package is intentionally an executable MCP product; it does not advertise a nonexistent JavaScript library entry point.

Codex

[mcp_servers.weavatrix_online]
command = "npx"
args = ["-y", "[email protected]", "C:\\path\\to\\repository"]

[mcp_servers.weavatrix_online.env]
WEAVATRIX_SYNC_URL = "https://app.weavatrix.com/api/v1/graphs/sync"
WEAVATRIX_SYNC_TOKEN = "load-from-runtime-secret-storage"

Claude Desktop

{
  "mcpServers": {
    "weavatrix-online": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]",
        "C:\\path\\to\\repository"
      ],
      "env": {
        "WEAVATRIX_SYNC_URL": "https://app.weavatrix.com/api/v1/graphs/sync",
        "WEAVATRIX_SYNC_TOKEN": "load-from-runtime-secret-storage"
      }
    }
  }
}

Keep bearer tokens in the MCP client's runtime secret storage. Do not put them in Git, a committed .env, release logs, or checked-in MCP configuration.

The seven Online tools

| Tool | Network | Evidence and effect | | --- | --- | --- | | online_status | Yes | Discovers endpoint capabilities, payload versions, limits, and auth mode without repository evidence. | | refresh_advisories | Yes | Inventories exact dependency coordinates, queries OSV, validates returned records, and atomically refreshes the local cache. | | scan_dependency_vulnerabilities | No | Matches the current inventory against that cache. Missing, stale, partial, or mismatched coverage remains NOT_CHECKED or PARTIAL. | | scan_dependency_malware | No | Performs bounded static review of installed dependency files. Findings require review and are never a compromise verdict. | | pull_architecture_contract | Yes | Fetches the owner-approved target for the active opaque repository ID, validates it, and updates the local graph cache. | | preview_sync | No | Serializes the exact allowlisted payload, hashes it, and issues a five-minute confirmation token. | | sync_graph | Yes | Sends only the payload approved by preview_sync; dry_run:false and the matching token are mandatory. |

The other 45 tools cover graphs, APIs, impact, architecture, dependency evidence, duplicates, health, search, and transactional refactoring. See the JavaScript engine catalog and the Refactor documentation.

Typical workflows

Check endpoint compatibility before doing any repository work:

{"name":"online_status","arguments":{"timeout_ms":10000}}

Refresh advisory evidence, then evaluate it locally:

{"name":"refresh_advisories","arguments":{"timeout_ms":20000}}
{"name":"scan_dependency_vulnerabilities","arguments":{"max_age_days":30}}

Review the exact upload without sending it:

{"name":"preview_sync","arguments":{"payload_version":3}}

After a human or trusted controller approves the displayed destination, section summary, counts, size, and body hash, use the returned token:

{
  "name": "sync_graph",
  "arguments": {
    "payload_version": 3,
    "dry_run": false,
    "confirm_token": "token-returned-by-preview_sync",
    "timeout_ms": 30000
  }
}

Changing the graph, repository, destination, payload, or expiry state invalidates that approval. A rejected or unavailable endpoint leaves the graph local.

Network and consent boundary

local repository
      │
      ▼
local graph + derived evidence
      │
      ▼
preview_sync ── inspect destination, sections, counts, size, and SHA-256
      │
      ▼
explicit approval
      │
      ▼
sync_graph ── capability negotiation ── approved endpoint

The connector enforces:

• HTTPS for every non-loopback destination;
• loopback-only HTTP for local development;
• no credentials embedded in URLs;
• endpoint capability negotiation before upload;
• a bounded versioned payload allowlist;
• exact preview hashing and a short-lived confirmation token;
• explicit gates for source edits and requested package scripts;
• honest NOT_CHECKED and PARTIAL states when evidence is incomplete.

The sync payload contains bounded graph topology and selected derived evidence. It excludes source bodies, snippets, absolute host paths, environment values, credentials, Git remotes, and fields outside the wire allowlist. “Source-free” does not mean anonymous: review the displayed repository identity, destination, counts, sections, and hash before approval.

Configuration

| Variable | Required | Meaning | | --- | --- | --- | | WEAVATRIX_SYNC_URL | For Online network workflows | Cloud or compatible self-hosted sync endpoint. | | WEAVATRIX_SYNC_TOKEN | For Cloud/authenticated endpoints | Scoped bearer token sent only to the approved endpoint. | | WEAVATRIX_CAPABILITIES_URL | No | Explicit capability document; otherwise /api/v1/capabilities with legacy /api/health fallback. | | WEAVATRIX_ARCHITECTURE_URL | No | Explicit owner-approved architecture-contract endpoint. | | WEAVATRIX_PRECISION | No | Local semantic precision: lsp (default) or off. | | WEAVATRIX_ALLOW_SOURCE_EDITS | No | Set to 1 only for a session authorized to apply or roll back previewed refactor plans. | | WEAVATRIX_ALLOW_TEST_RUNS | No | Set to 1 only when the user also requests allowlisted verified_change package scripts. | | WEAVATRIX_GRAPH_HOME | No | Override local graph/cache storage. | | WEAVATRIX_ADVISORY_STORE | No | Override the local advisory-cache file. |

Compatible endpoints must implement the versioned capability and sync contracts. Capability discovery itself sends no repository evidence.

Security evidence without false certainty

Advisory refresh covers pinned npm, PyPI, Go, Maven/Gradle, and crates.io coordinates found in bounded repository manifests. A clean zero is allowed only when the current inventory matches a complete, current Online cache.

Malware review is static and bounded. It can identify evidence such as download-and-execute lifecycle scripts, reverse-shell patterns, decoded execution, miner indicators, credential-file reads, or suspicious exfiltration endpoints. It cannot prove execution, provenance, credential exposure, safety, or compromise.

Architecture contracts are validated locally before becoming active. Refactoring remains preview-first; writes require both a plan-bound confirmation token and WEAVATRIX_ALLOW_SOURCE_EDITS=1.

Report vulnerabilities privately through GitHub Security Advisories.

Architecture

The connector is a strict modular ports-and-adapters system:

policy
  └─ discovery adapters
       └─ security cache and evidence services
            └─ Online actions
                 └─ MCP composition and executable

• policy: destination validation, version matching, inventory identities, and malware evidence rules;
• discovery: bounded manifest and installed-package adapters;
• security: atomic advisory state, cached matching, scanning, and reporting;
• online-actions: capability, contract, advisory, preview, and sync use cases;
• composition: extension registration, launcher, and stdio executable.

The checked-in architecture contract enforces zero runtime cycles, production files at or below 300 physical lines, and functions at or below 100 physical lines, with no exceptions and no violation baseline.

Development and release proof

npm ci --ignore-scripts
npm test
npm run verify:release
npm audit
npm pack --dry-run --json

The release gate verifies package identity, dependency ranges, exact installed versions, MCP Registry metadata, checked-in release notes, MIT licensing, the published file allowlist, and tag/version agreement. CI repeats the tests, security audit, and package dry-run on Node.js 24.

License

MIT. Weavatrix Online, weavatrix-js, and weavatrix-refactor are independently versioned MIT-licensed packages.