grc

GRC Knowledge Plugin

A plugin that turns your AI coding agent into a senior GRC (Governance, Risk, and Compliance) analyst. 72+ reference files covering 15 frameworks, 24 slash commands, and deep domain knowledge for federal and commercial compliance work.

Works with: Claude Code, OpenCode

What It Does

Load this plugin and Claude gains expertise in:

• 15 compliance frameworks — NIST 800-53, FedRAMP, FISMA, CMMC, SOC 2, ISO 27001, PCI DSS, HIPAA, CIS Controls, COBIT, CSA CCM, GDPR, SLSA, OSCAL, and NIST Rev 4→5 transition
• Cross-framework mapping — Map any control to any other framework through NIST 800-53 as the hub
• Document review — Feed it SSP narratives, POA&Ms, policies, CRMs and get structural quality feedback with 0-5 maturity scoring
• Operational workflows — Significant change analysis, inheritance modeling, SAR responses, compliance calendars, tabletop exercises

It cites specific control IDs, knows baseline assignments, understands assessment procedures, and speaks the language of auditors, ISSOs, and compliance engineers.

Install

From a Plugin Marketplace (Recommended)

Add the marketplace and install:

/plugin marketplace add mlunato47/claude-grc-plugin
/plugin install grc@mlunato47

Or from the CLI:

claude plugin install grc@mlunato47

You can install at different scopes:

claude plugin install grc@mlunato47                  # User scope (all projects)
claude plugin install grc@mlunato47 --scope project  # Project scope (shared via git)
claude plugin install grc@mlunato47 --scope local    # Local only

From a Local Directory

Clone the repo and load directly:

git clone https://github.com/mlunato47/claude-grc-plugin.git
claude --plugin-dir ./grc-plugin/grc

Or load alongside other plugins:

claude --plugin-dir ./grc-plugin/grc --plugin-dir ./other-plugin

Once loaded, type /grc: to see all available commands.

OpenCode

You can ask OpenCode to self-install by telling it:

Fetch and follow the instructions at https://raw.githubusercontent.com/mlunato47/claude-grc-plugin/main/.opencode/INSTALL.md

Or install manually:

# Clone
git clone https://github.com/mlunato47/claude-grc-plugin.git ~/.config/opencode/grc

# Symlink plugin, skills, and commands
mkdir -p ~/.config/opencode/plugins ~/.config/opencode/skills ~/.config/opencode/commands
ln -s ~/.config/opencode/grc/.opencode/plugins/grc.js ~/.config/opencode/plugins/grc.js
ln -s ~/.config/opencode/grc/grc/skills/grc-knowledge ~/.config/opencode/skills/grc-knowledge
for cmd in ~/.config/opencode/grc/grc/commands/*.md; do
  ln -s "$cmd" ~/.config/opencode/commands/$(basename "$cmd")
done

Restart OpenCode. Commands are available as /grc-control-lookup, /grc-map-controls, etc.

Commands

Note: In Claude Code, commands use /grc:command-name. In OpenCode, commands use /grc-command-name.

Framework & Controls

Command	Purpose
/grc:control-lookup	Look up controls by framework and ID or keyword
/grc:map-controls	Map controls between any two frameworks
/grc:conmon-guide	Continuous monitoring guidance by topic
/grc:audit-prep	Audit preparation checklists by audit type
/grc:poam-help	POA&M creation, templates, and metrics
/grc:gap-analysis	Structured gap analysis worksheets
/grc:ssp-section	Draft SSP narrative language by control family
/grc:deviation-request	Draft deviation/risk acceptance documentation

Document Review & Analysis

Command	Purpose
/grc:review-narrative	Review SSP control narratives — Five W's, ODPs, 0-5 maturity score
/grc:review-ssp	Validate SSP structure against FedRAMP template
/grc:review-poam	Check POA&M entries for field completeness and SLA compliance
/grc:review-policy	Review policy structure, control coverage, and language quality
/grc:review-crm	Review CRM coverage, responsibility clarity, and common gaps
/grc:score-maturity	Score control implementation maturity 0-5 with next-level guidance
/grc:evidence-checklist	Generate audit evidence prep checklists (no user content needed)

Operational Workflows