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.
npx agentmods add instructions/frostyard/snosi/agents-mdgit clone --depth 1 https://github.com/frostyard/snosiWrote 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.
[](https://agentmods.dev/instructions/frostyard/snosi/agents-md)<a href="https://agentmods.dev/instructions/frostyard/snosi/agents-md"><img src="https://agentmods.dev/badge/instructions/frostyard/snosi/agents-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.23390 | $0.23390 |
| Opus 5 | $0.11695 | $0.11695 |
| Sonnet 5 | $0.04678 | $0.04678 |
| Haiku 4.5 | $0.02339 | $0.02339 |
Grade D, and why
snosi AGENTS.md scanned grade D with 3 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 yesterday.
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.
Requires: just, git, python3, root/sudo access. mkosi itself is auto-bootstrapped: the Justfile fetches systemd/mkosi into a repo-local, gitignored `.mkosi/` checkout at the exact commit pinned by the `systemd/mkosi@<sha Reaches for credential fileshighPrivilege escalation
SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.
1. Captured to `/usr/share/factory/etc` during build (via `mkosi.finalize`) — capture ONLY the specific paths the sysext's tmpfiles rules reference, never all of `/etc` (the buildroot `/etc` is the merged base view; a fu Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
**Three stager hardening rules, all root-caused live in the first QEMU run of `test/native-ab-updateux-test.sh`:** (1) capture `check-new` STDOUT ONLY — its progress lines ("Discovering installed instances…") are stderr How it starts
The opening of the file, as written. The whole thing — 729 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
snosi is a bootable container image build system using mkosi to produce Debian Trixie-based immutable OS images and system extensions (sysexts). Images are deployed via bootc/systemd-boot with atomic updates.
Outputs: 2 OCI desktop images (snow, snowfield), 1 OCI server image (cayo), and 27 sysext overlay images (1password, 1password-cli, azurevpn, bitwarden, chatgpt, claude-desktop, code-server, coder, debdev, dev, docker, edge, github-copilot, incus, k3s, lemonade, localsend, moonlight, nix, obsidian, paseo, pilothouse, podman, sunshine, tailscale, voxtype, vscode).
Build Commands
Requires: just, git, python3, root/sudo access. mkosi itself is auto-bootstrapped: the Justfile fetches systemd/mkosi into a repo-local, gitignored .mkosi/ checkout at the exact commit pinned by the systemd/mkosi@<sha> action in .github/workflows/build.yml (read at runtime — no drift between local and CI), and runs .mkosi/bin/mkosi from there. Delete .mkosi/ to discard it; override with just mkosi=/usr/bin/mkosi <target> to use a system install.
just # List targets
just sysexts # Build base + all 27 sysexts
just snow # Build snow desktop image
just snowfield # Build snowfield (Surface kernel)
just cayo # Build cayo server image
just clean # Remove build artifacts
just test-install # Run bootc install test
just run-qemu # Run image in QEMU
All just targets run mkosi clean first (clean build every time).
Optional bcvk testing: bcvk is a local convenience for exercising the OCI
bootc images and does not replace just test-install or its CI workflow. OCI
profiles include bubblewrap because bcvk runs bwrap from the target image;
virtiofsd already ships in base. bcvk 0.18 requires an explicit host-side
podman pull before bcvk libvirt run (--pull=never). OCI bootc profiles
use SecureBoot=no and do not build or enroll the native A/B MOK signing
chain, so they do not currently boot under bcvk's enrolled-key Secure Boot
firmware. Use --firmware uefi-insecure only for bcvk install-mechanics
testing. Do not represent this as Secure Boot validation or change the
established bootc installation/testing path because of it.
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.
- yesterday Changed · +51 lines · +1,276 tokens per session 8ad02c340258
- 5d ago First seen · 678 lines · 22,114 tokens per session scan D 45af7683cf23
snosi AGENTS.md is an instructions file published in the GitHub repository frostyard/snosi (24 stars, last pushed yesterday), licensed MIT. It adds 23,390 tokens to every session, about $0.1169 per session on Opus 5. A static security scan graded it D with 3 findings (asks for root, reaches for credential files, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-release stance: foundation over blast radius, repository layout, commands and host sandbox failures.