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Compare scores, permissions, risks, and fit in one decision-focused table.

DimensionPMB AILocal-first persistent memory for AI coding agents.NPM Sentinel MCP ServerAI-powered NPM package analysis MCP server
FMRS63 / 100 · C79 / 100 · B
Reliability10 / 2012 / 20
Security and permissions12 / 2016 / 20
Maintenance14 / 2018 / 20
Documentation15 / 2018 / 20
Setup experience12 / 2015 / 20
Best for
  • Developers using Claude Code, Cursor, or Codex
  • Users prioritizing privacy and local data control
  • Teams needing persistent memory without cloud dependency
  • Developers auditing NPM dependencies within AI workflows
  • Teams performing supply chain security assessments
  • Users of Claude Desktop, Cursor, or VS Code
Not for
  • Users requiring online collaboration or cloud sync
  • Users without local disk space or needing real-time sync across devices
  • Users wanting zero configuration and avoiding command-line operations
  • Projects outside the NPM ecosystem (e.g., pure Python/Go)
  • Environments without network access to deps.dev, OSV.dev, and the npm registry
  • Scenarios requiring maintenance by an official upstream vendor
Required permissions
  • Read local filesystem (for indexing project, PDFs, etc.)
  • Write to local SQLite database and LanceDB indexes
  • Execute CLI commands (pmb)
  • Optional network access (e.g., when using Ollama or OpenAI for summarization)
  • Network access to the NPM registry and external services (deps.dev, OSV.dev, OpenSSF, npms.io, GitHub)
  • Read access to workspace lockfiles (pnpm-lock.yaml, package-lock., yarn.lock) for cache invalidation
Risks and side effects
  • Local data loss risk if not backed up
  • Indexing large projects may consume disk space
  • Data is not encrypted by default; secrets are auto-redacted
  • Requires command-line familiarity
  • Third-party READMEs and changelogs are untrusted external content; they are wrapped in tags with _meta flags but should still be handled cautiously
  • Depends on availability and accuracy of external services
  • Batch requests are capped at 25 packages to prevent registry enumeration; larger sets require batching
  • Third-party open source project, not officially maintained by NPM or Anthropic
Supported clientsClaude Desktop, Cursor, Codex, Windsurf, Zed, VS CodeClaude Desktop, VS Code, Cursor
Tools1319