heimdall: A lightweight CPU only memory approach with ranked retrieval. Simple, yet effective

by ArihantDeva · MCP Server · ★ 137

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

How to install heimdall

npm i -g @arihantdeva/heimdall

Taken from the project's README on GitHub.

Security audit verdict: SAFE · quality 65/100

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.

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-agentsclaude-codeclicode-intelligencedeveloper-toolsembeddingsknowledge-basellm-toolsmcpmemory

Quick Facts

Stars137
Forks9
LanguageJavaScript
CategoryMCP Server
LicenseMIT
Quality Score65/100
Open Issues3
Last Updated2026-11-02
Created2026-08-20
Platformsclaude-code, cli, mcp, node
Est. Tokens~22k

About heimdall

Heimdall Your agent keeps rebuilding work you already did. Heimdall makes it stop. Heimdall gives AI coding agents persistent memory across every repository and project you work on so the question "did I already solve this in another project?" gets answered by one verified search instead of twenty minutes of grep, , and loops. The problem it solves 1. Memory that doesn't live in one repository.

Compatible Skills

These tools work well together with heimdall for enhanced workflows:

  • ownmem — semantic(0.21)+complementary+same_lang+similar_pop+shared_platform (57%)
  • constellation-engine — semantic(0.19)+complementary+same_lang+similar_pop+shared_platform (57%)
  • wife — semantic(0.18)+complementary+same_lang+similar_pop+shared_platform (56%)

heimdall alternative? Top 6 similar tools

Looking for a heimdall alternative? If you're comparing heimdall 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.

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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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