Yggdrasil: Durable, local-first memory for AI coding agents over MCP

by VonderVuflya · MCP Server · ★ 22

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

Security audit verdict: SAFE · quality 60/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

ai-agentsai-memoryclaudeclaude-codeclicodexcoding-assistantdeveloper-toolsembeddingsllm

Quick Facts

Stars22
Forks2
LanguagePython
CategoryMCP Server
LicenseAGPL-3.0
Quality Score60/100
Last Updated2026-10-22
Created2026-06-18
Platformsclaude-code, cli, codex, mcp, python
Est. Tokens~17k

About Yggdrasil

Durable, local-first memory for AI coding agents over MCP — zero-dependency, curated & semantically de-duped, you own the data (SQLite + Markdown). Works with Claude Code, Codex & any MCP host.

Compatible Skills

These tools work well together with Yggdrasil for enhanced workflows:

  • ctx — semantic(0.27)+complementary+same_lang+similar_pop+shared_platform (60%)

Yggdrasil alternative? Top 6 similar tools

Looking for a Yggdrasil alternative? If you're comparing Yggdrasil with other mcp server tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • mychatarchive by 1ch1n · ⭐ 65

    Local-first AI memory archive. Import ChatGPT, Claude, and Grok exports, generate semantic embeddings, and sea

  • roampal-core by roampal-ai · ⭐ 51

    Outcome-based persistent memory MCP server for Claude Code and OpenCode. Good advice promoted, bad advice demo

  • TaskWing by josephgoksu · ⭐ 88

    Local-first AI knowledge layer. Extract architecture, query from any AI tool via MCP. Private by architecture.

  • claude-emporium by Vvkmnn · ⭐ 82

    🏛 [UNDER CONSTRUCTION] A (roman) claude plugin marketplace

  • sage by usetig · ⭐ 106

    An LLM council that reviews your coding agent's every move

  • claude-memory-mcp by WhenMoon-afk · ⭐ 69

    Local citation-backed recall for Pi, OMP, Claude Code, Codex, and ChatGPT history.

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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