999-vault-seal-immutable

999-vault-seal-immutable is a skill for Claude Code, Codex from ariffazil/AAA. It costs 38 tokens per session (2,018 once invoked), scanned B, original, AGPL-3.0.

A procedure for recording an action in an append-only civilizational memory system called VAULT999.

In plain words
What is it for?
It is for creating VAULT999 records and preparing a future initialization scaffold.
Why use it?
It is intended to preserve the record and trigger end-of-session system hardening, but the description does not define those operations in detail.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit It is for creating VAULT999 records and preparing a future initialization scaffold.

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Install with agentmods
npx agentmods add skills/ariffazil/aaa/999-vault-seal-immutable
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.

Any agent
npx skills add ariffazil/AAA --skill 999-vault-seal-immutable
Clone the repo
git clone --depth 1 https://github.com/ariffazil/AAA

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 999-vault-seal-immutable

README.md
[![agentmods](https://agentmods.dev/badge/skills/ariffazil/aaa/999-vault-seal-immutable/github.svg)](https://agentmods.dev/skills/ariffazil/aaa/999-vault-seal-immutable)
Your own site
<a href="https://agentmods.dev/skills/ariffazil/aaa/999-vault-seal-immutable"><img src="https://agentmods.dev/badge/skills/ariffazil/aaa/999-vault-seal-immutable/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for 999-vault-seal-immutable

Your own site · 80×15
<a href="https://agentmods.dev/skills/ariffazil/aaa/999-vault-seal-immutable"><img src="https://agentmods.dev/badge/skills/ariffazil/aaa/999-vault-seal-immutable.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,018 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00038 $0.02018
Opus 5 $0.00019 $0.01009
Sonnet 5 $0.00008 $0.00404
Haiku 4.5 $0.00004 $0.00202

Measured 6d ago against content hash f28bb94ac166, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade B, and why

999-vault-seal-immutable scanned grade B with 2 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 6d 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.

Downloads and executes remote codemediumSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -s --max-time 3 http://localhost:$port/health | python3 -c "

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s --max-time 3 http://localhost:$port/health | python3 -c "
archive/2026-07-25/AAA/skills/ARCHIVE/archive-2026-07-12/999-vault-seal-immutable/SKILL.md · 269 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 6d ago First seen · 269 lines · 38 tokens per session scan B f28bb94ac166

Subscribe to this mod's changes

999-vault-seal-immutable is a skill published in the GitHub repository ariffazil/AAA (2 stars, last pushed today), licensed AGPL-3.0. It adds 38 tokens to every session and 2,018 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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