M

MARGINAL

Local-first runtime governor for AI coding agents that detects proven no-progress repetition, records decision evidence, starts in Shadow Mode, and earns narrow enforcement only after repository-local evidence

signallayerlabs/marginal · v0.3.3 · source 41c7cee · Development & Workflow

SignalLayerLabsOwner verifiedcaution
InstallSource
67Follow0

Trust Score

67

Security

59

Surfaces

1

What is MARGINAL?

MARGINAL is a published development & workflow plugin for AI coding agents in the codex ecosystem, developed by SignalLayerLabs and distributed through the HOL AI plugin registry. Local-first runtime governor for AI coding agents that detects proven no-progress repetition, records decision evidence, starts in Shadow Mode, and earns narrow enforcement only after repository-local evidence

Canonical slug
signallayerlabs/marginal
Version
v0.3.3 · source 41c7cee · updated Oct 8, 2026

Trust & Reputation

HOL Trust Score
67

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
64pts
Maintenance
55pts
MCP Posture
100pts
Plugin Security
59pts
Provenance
70pts
Publisher Quality
75pts

Registry Snapshot

Publisher verification
No
Marketplace source
Unknown
Scanner
Broker fallback
Safety label
caution
Digest verified
Yes
1 bundled skill — copy or download SKILL.mdOpen skills

Trust & reputation

Trust & Reputation

HOL Trust Score
67

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
64pts
Maintenance
55pts
MCP Posture
100pts
Plugin Security
59pts
Provenance
70pts
Publisher Quality
75pts

Provenance

Plugin root
.
Source repo
https://github.com/SignalLayerLabs/Marginal
Source commit
41c7cee98fd0…
Publisher verified
No
Owner verified
@SignalLayerLabs

Continuous scanner CI detected

No action is required. This plugin receives the full trust score.

Verified badge not detected

Add the HOL verified badge to the repository README to score +2% trust. Plugin owners can open that pull request from Guard Plugins.

Security Posture

caution
Safety label
59
Security score
0
High findings
Provider
registry-broker-fallback
Grade
F · caution
Version
Unknown
cisco-skill-scanner: unknown

Findings

mediumpublishabilitypublishability.link.missing.websiteURL

websiteURL should be present for marketplace readiness.

mediumpublishabilitypublishability.link.missing.privacyPolicyURL

privacyPolicyURL should be present for marketplace readiness.

mediumpublishabilitypublishability.link.missing.termsOfServiceURL

termsOfServiceURL should be present for marketplace readiness.

lowoperational-securitysupply-chain.lockfile-missing

Repository snapshot does not include a lockfile.

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

MARGINAL — Frequently asked questions

What is MARGINAL?
MARGINAL is an AI plugin in the HOL registry. Local-first runtime governor for AI coding agents that detects proven no-progress repetition, records decision evidence, starts in Shadow Mode, and earns narrow enforcement only after repository-local evidence
How do I install MARGINAL?
Install MARGINAL in your harness: Source — https://github.com/SignalLayerLabs/Marginal/releases; Any agent — npx skills add SignalLayerLabs/Marginal. Full step-by-step guidance is on the HOL plugin page.
How do I install MARGINAL in Source?
To install MARGINAL in Source, start with https://github.com/SignalLayerLabs/Marginal/releases. The complete step-by-step install guide for Source is on the HOL plugin page.
Is MARGINAL free?
Pricing for MARGINAL is published on its HOL plugin page when the maker schedules a launch.
Who publishes MARGINAL?
MARGINAL is published by SignalLayerLabs and listed on HOL.
Is MARGINAL available now?
MARGINAL availability is listed on its HOL plugin page.

Install Guidance

Install in Source

Install from a native release archive or the assessed source revision.

Install guide
  1. 1

    Download the release archive

    Use a published GitHub release archive. The catalog version is the package version at the assessed commit.

    shell
  2. 2

    Follow the publisher install guide

    https://github.com/SignalLayerLabs/Marginal/blob/41c7cee98fd04a14d39e95f1c8f4251bc25ed39f/docs/INSTALL.md

Plugin Manifest

{
  "name": "Marginal",
  "version": "0.3.3",
  "description": "Local-first runtime governor for AI coding agents that detects proven no-progress repetition, records decision evidence, starts in Shadow Mode, and earns narrow enforcement only after repository-local evidence",
  "repository": "https://github.com/SignalLayerLabs/Marginal",
  "homepage": "https://github.com/SignalLayerLabs/Marginal",
  "interface": {
    "displayName": "MARGINAL",
    "developerName": "SignalLayerLabs",
    "category": "Development & Workflow"
  },
  "skills": "./",
  "holPackageManager": "python",
  "holManifestOrigin": "synthesized",
  "registryIndexVersion": 5
}

Skills

1 SKILL.md file ship with this plugin. Preview, copy, or download each one, then install them with the Skills CLI.

Share
skills-cli

  • marginal

    plugins/marginal/skills/marginal/SKILL.md

    Use when inspecting, reviewing, promoting, demoting, or explaining MARGINAL governance in Codex, especially for repeated tool work, token-saving claims, and Earned Enforcement readiness.

    Raw SKILL.md

File Inventory

.codex-plugin/plugin.json

plugin-manifest

590 bytes

571c84e35fd3e5cf…

plugins/marginal/skills/marginal/agents/openai.yaml

file

234 bytes

9d5f9b0c12c3e11c…

plugins/marginal/skills/marginal/SKILL.md

skill

3,579 bytes

17de9de2eadf345e…

pyproject.toml

file

2,764 bytes

31af8ec8f7ebf7ce…

README.md

file

12,602 bytes

b46753c1bd8612d6…

README.md

file

12,602 bytes

b46753c1bd8612d6…

SECURITY.md

file

5,896 bytes

67a0fad3336fc1be…