inheritance

inheritance is a command for Claude Code from nathanimphilipos/synergos-grc. It costs 10 tokens per session (1,262 once invoked), scanned A, a copy of inheritance, MIT.

A command for mapping which security controls are handled by a cloud provider and which remain the customer's responsibility. It uses a framework such as FedRAMP, NIST, or FISMA and a service model such as IaaS, PaaS, or SaaS.

In plain words
What is it for?
Use it to analyze control ownership for services running on infrastructure, platform, or software cloud offerings, with an optional security baseline such as low, moderate, or high.
Why use it?
It clarifies shared responsibility, so a team does not assume the provider covers controls that it must implement itself.

Command for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the grc plugin — 1 skill, 27 commands shipped together

Good fit Use it to analyze control ownership for services running on infrastructure, platform, or software cloud offerings, with an optional security baseline such as low, moderate, or high.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/nathanimphilipos/synergos-grc/inheritance
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/nathanimphilipos/synergos-grc

Made for: Claude Code.

Or install grc, the plugin that ships this one along with the rest of its 1 skill, 27 commands.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for inheritance

README.md
[![agentmods](https://agentmods.dev/badge/commands/nathanimphilipos/synergos-grc/inheritance.svg)](https://agentmods.dev/commands/nathanimphilipos/synergos-grc/inheritance)
Your own site
<a href="https://agentmods.dev/commands/nathanimphilipos/synergos-grc/inheritance"><img src="https://agentmods.dev/badge/commands/nathanimphilipos/synergos-grc/inheritance.svg" alt="Measured on agentmods" height="20"></a>
Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,262 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00010 $0.01262
Opus 5 $0.00005 $0.00631
Sonnet 5 $0.00002 $0.00252
Haiku 4.5 $0.00001 $0.00126

Measured 8d ago against content hash 603565da8bca, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

inheritance scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to inheritance — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

grc/commands/inheritance.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/grc:inheritance

Model control inheritance based on service model and provider stack.

Usage

/grc:inheritance [framework?] [service-model] [baseline?]

The user can optionally describe their provider stack or specific controls to analyze.

Arguments

  • framework (optional): fedramp, nist, fisma. Defaults to fedramp.
  • service-model: iaas, paas, saas, or a description like "SaaS on AWS" or "PaaS on Azure GovCloud"
  • baseline (optional): low, moderate, high. Defaults to moderate.

Examples

/grc:inheritance fedramp iaas moderate
/grc:inheritance fedramp saas
/grc:inheritance paas on AWS GovCloud
/grc:inheritance fedramp saas high
/grc:inheritance We run a SaaS application on AWS GovCloud (IaaS) using RDS, ECS, and S3

Behavior

When invoked:

  1. Display the Data Sensitivity Notice at the top of every response if the user describes their specific stack (see SKILL.md Data Handling section). If the user only specifies a generic service model (e.g., "iaas"), the notice is not needed.

  2. Read the appropriate reference files:

    • skills/grc-knowledge/audits/control-inheritance.md for inheritance patterns by service model
    • Framework file from skills/grc-knowledge/frameworks/ for baseline control list
    • skills/grc-knowledge/audits/document-section-requirements.md for CRM structure guidance
  3. Generate an inheritance model based on the service model:

    a. Control Family Inheritance Table For each of the 20 NIST control families at the specified baseline:

    • Expected responsibility designation (Inherited, Shared, Customer, CSP)
    • Brief explanation of what's inherited vs. what the customer must implement
    • Key controls to pay attention to in each family

    b. Detailed Shared Control Breakdown For controls marked as Shared:

    • What the underlying provider typically handles
    • What the leveraging CSP or customer must handle
    • ODP responsibility (who defines parameter values)
    • Evidence responsibility (who produces evidence for audit)

Read the full file on GitHub · 145 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 145 lines · 10 tokens per session scan A 603565da8bca

Subscribe to this mod's changes

inheritance is a command published in the GitHub repository nathanimphilipos/synergos-grc (5 stars, last pushed 6mo ago), licensed MIT. It adds 10 tokens to every session and 1,262 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to inheritance, differing in 0 lines, and is treated as a copy.