symb2-validator

symb2-validator is a skill for Claude Code, Codex from SYMBEYOND/SYMB-Mem. It costs 69 tokens per session (341 once invoked), scanned A, original, no licence file.

A safety check for operations that can change or permanently remove data, such as deleting files, overwriting content, or dropping databases. It requires auditing and informing the user before such actions.

In plain words
What is it for?
Use it before file deletion, overwrites, database drops, forced Git operations, log truncation, or other potentially permanent changes.
Why use it?
It reduces the risk of losing data through an irreversible command or unnoticed change.

Skill for Claude CodeCodex

Part of the SYMB-Mem plugin — 3 skills, 6 commands, 2 agents shipped together

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/symbeyond/symb-mem/symb2-validator
Any agent
npx skills add SYMBEYOND/SYMB-Mem --skill symb2-validator
Clone the repo
git clone --depth 1 https://github.com/SYMBEYOND/SYMB-Mem

Made for: Claude Code, Codex.

Or install SYMB-Mem, the plugin that ships this one along with the rest of its 3 skills, 6 commands, 2 agents.

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 symb2-validator

README.md
[![agentmods](https://agentmods.dev/badge/skills/symbeyond/symb-mem/symb2-validator.svg)](https://agentmods.dev/skills/symbeyond/symb-mem/symb2-validator)
Your own site
<a href="https://agentmods.dev/skills/symbeyond/symb-mem/symb2-validator"><img src="https://agentmods.dev/badge/skills/symbeyond/symb-mem/symb2-validator.svg" alt="Measured on agentmods" height="20"></a>
Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 341 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 5.1 $0.00069 $0.00341
Opus 5 $0.00034 $0.00170
Sonnet 5 $0.00014 $0.00068
Haiku 4.5 $0.00007 $0.00034

Measured 5d ago against content hash 06617d74468d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

symb2-validator 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 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.

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.

skills/symb2-validator/SKILL.md · 45 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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 · 45 lines · 69 tokens per session scan A 06617d74468d

Subscribe to this mod's changes

symb2-validator is a skill published in the GitHub repository SYMBEYOND/SYMB-Mem (3 stars, last pushed 2mo ago), with no licence file. It adds 69 tokens to every session and 341 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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