sandbox-framework

sandbox-framework is a skill for Claude Code, Codex from SteelMorgan/1c-agent-based-dev-framework. It costs 54 tokens per session (615 once invoked), scanned B, original, no licence file.

A set of rules for how an AI agent behaves and uses permissions inside a sandbox development container. A sandbox is an isolated environment where the agent can work without unrestricted access to the surrounding system.

In plain words
What is it for?
Use it to govern agent behavior, container changes, safety restrictions, and permission escalation.
Why use it?
It defines what the agent may change in the container while keeping explicit safety rules and permission limits in place.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/steelmorgan/1c-agent-based-dev-framework/sandbox-framework
Any agent
npx skills add SteelMorgan/1c-agent-based-dev-framework --skill sandbox-framework
Clone the repo
git clone --depth 1 https://github.com/SteelMorgan/1c-agent-based-dev-framework

Made for: Claude Code, Codex.

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 sandbox-framework

README.md
[![agentmods](https://agentmods.dev/badge/skills/steelmorgan/1c-agent-based-dev-framework/sandbox-framework.svg)](https://agentmods.dev/skills/steelmorgan/1c-agent-based-dev-framework/sandbox-framework)
Your own site
<a href="https://agentmods.dev/skills/steelmorgan/1c-agent-based-dev-framework/sandbox-framework"><img src="https://agentmods.dev/badge/skills/steelmorgan/1c-agent-based-dev-framework/sandbox-framework.svg" alt="Measured on agentmods" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 615 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
Origin unknown No closer match found 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 $0.00054 $0.00615
Opus 5 $0.00027 $0.00308
Sonnet 5 $0.00011 $0.00123
Haiku 4.5 $0.00005 $0.00061

Measured 5d ago against content hash 7415a2e785d2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

sandbox-framework scanned grade B with 1 finding 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 5d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

description: Behavior + permission model for the AI agent inside the sandbox devcontainer. The agent has sudo and may modify its container environment freely to solve tasks, but must never bypass explicit safety restrict
.claude/skills/sandbox-framework/SKILL.md · 71 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 5d ago First seen · 71 lines · 54 tokens per session scan B 7415a2e785d2

Subscribe to this mod's changes

sandbox-framework is a skill published in the GitHub repository SteelMorgan/1c-agent-based-dev-framework (97 stars, last pushed 2mo ago), with no licence file. It adds 54 tokens to every session and 615 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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