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HOL Guard

Local-first AI agent security evidence and approval workflows through HOL Guard's stdio MCP server.

io.github.hashgraph-online/hol-guard · Repository · Website · version 3.0.0a153 · 435 stars · listed from registry

Install

The sweep installs into a clean prefix, but this is the command a user would run:

uvx hol-guard

Results by platform

Linux

MCP handshake failed2026-08-16 · probed over pypi

1 recorded run, oldest first.

handshake failed: MCP error -32000: Connection closed
--- stderr (tail) ---
Downloading onnxruntime (18.3MiB)
Downloading magika (15.5MiB)
Downloading litellm (19.2MiB)
Downloading hol-guard (4.6MiB)
Downloading yara-x (9.3MiB)
 Downloaded yara-x
 Downloaded magika
 Downloaded onnxruntime
 Downloaded hol-guard
 Downloaded litellm
Installed 103 packages in 110ms
/home/runner/.cache/uv/archive-v0/8Tu1WsZed10WRzJx/lib/python3.12/site-packages/pydantic_settings/sources/utils.py:47: IncompleteFieldDefinitionWarning: Field 'lifespan' has an incomplete definition: its annotation contains an unresolved forward reference, so settings sources may fail to correctly resolve its value. Call `model_rebuild()` on the model where the field is defined, once all the referenced types are defined.
  warnings.warn(
Unable to evaluate type annotations for callable 'create_policy'

macOS

MCP handshake failed2026-08-16 · probed over pypi

1 recorded run, oldest first.

handshake failed: MCP error -32000: Connection closed
--- stderr (tail) ---
Downloading hol-guard (4.4MiB)
Downloading yara-x (8.0MiB)
Downloading onnxruntime (18.3MiB)
Downloading magika (13.2MiB)
 Downloaded yara-x
 Downloaded magika
 Downloaded onnxruntime
 Downloaded hol-guard
   Building litellm==1.93.0
      Built litellm==1.93.0
Installed 101 packages in 1.09s
/Users/runner/.cache/uv/archive-v0/C-HAT9-nDXz5ljC6/lib/python3.14/site-packages/pydantic_settings/sources/utils.py:47: IncompleteFieldDefinitionWarning: Field 'lifespan' has an incomplete definition: its annotation contains an unresolved forward reference, so settings sources may fail to correctly resolve its value. Call `model_rebuild()` on the model where the field is defined, once all the referenced types are defined.
  warnings.warn(
Unable to evaluate type annotations for callable 'create_policy'

Windows

MCP handshake failed2026-08-16 · probed over pypi

1 recorded run, oldest first.

handshake failed: MCP error -32000: Connection closed
--- stderr (tail) ---
Building win-unicode-console==0.5
Downloading magika (12.5MiB)
Downloading yara-x (7.8MiB)
Downloading onnxruntime (13.1MiB)
Downloading hol-guard (4.3MiB)
      Built win-unicode-console==0.5
 Downloaded yara-x
 Downloaded magika
 Downloaded onnxruntime
 Downloaded hol-guard
   Building litellm==1.93.0
      Built litellm==1.93.0
Installed 104 packages in 39.68s
C:\Users\runneradmin\AppData\Local\uv\cache\archive-v0\qrwYoHYr2r9AKq8j\Lib\site-packages\pydantic_settings\sources\utils.py:47: IncompleteFieldDefinitionWarning: Field 'lifespan' has an incomplete definition: its annotation contains an unresolved forward reference, so settings sources may fail to correctly resolve its value. Call `model_rebuild()` on the model where the field is defined, once all the referenced types are defined.
  warnings.warn(
Unable to evaluate type annotations for callable 'create_policy'

Badge

Paste this into the project README to show the current result:

[![does it install](https://img.shields.io/endpoint?url=https://doesitinstall.com/badge/io.github.hashgraph-online__hol-guard.json)](https://doesitinstall.com/s/io.github.hashgraph-online__hol-guard.html)