Agent Audit Trail

Agent Audit Trail is a skill for Claude Code, Codex from lxyeternal/MalSkillBench. It costs 59 tokens per session (3,146 once invoked), scanned A, original, no licence file.

An append-only activity log for AI agents that records actions, tool calls, decisions, and outside changes with timestamps, sources, and SHA-256 links between entries.

In plain words
What is it for?
It is for keeping an integrity-checked record of agent activity for audits and compliance reviews.
Why use it?
It helps show what an agent did and whether the recorded history was altered. This supports automatic event recording for high-risk systems under the EU AI Act.

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 keeping an integrity-checked record of agent activity for audits and compliance reviews.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/lxyeternal/malskillbench/agent-audit-trail
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 lxyeternal/MalSkillBench --skill agent-audit-trail
Clone the repo
git clone --depth 1 https://github.com/lxyeternal/MalSkillBench

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 Agent Audit Trail

README.md
[![agentmods](https://agentmods.dev/badge/skills/lxyeternal/malskillbench/agent-audit-trail/github.svg)](https://agentmods.dev/skills/lxyeternal/malskillbench/agent-audit-trail)
Your own site
<a href="https://agentmods.dev/skills/lxyeternal/malskillbench/agent-audit-trail"><img src="https://agentmods.dev/badge/skills/lxyeternal/malskillbench/agent-audit-trail/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 Agent Audit Trail

Your own site · 80×15
<a href="https://agentmods.dev/skills/lxyeternal/malskillbench/agent-audit-trail"><img src="https://agentmods.dev/badge/skills/lxyeternal/malskillbench/agent-audit-trail.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,146 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 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 $0.00059 $0.03146
Opus 5 $0.00030 $0.01573
Sonnet 5 $0.00012 $0.00629
Haiku 4.5 $0.00006 $0.00315

Measured 6d ago against content hash 7e844a244852, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

Agent Audit Trail 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 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.

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.

Dataset/Skills/benign/agent-audit-trail/SKILL.md · 404 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

Files

What ships with it

1 file 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 · 404 lines · 59 tokens per session scan A 7e844a244852

Subscribe to this mod's changes

Agent Audit Trail is a skill published in the GitHub repository lxyeternal/MalSkillBench (59 stars, last pushed 3mo ago), with no licence file. It adds 59 tokens to every session and 3,146 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 2026-09-03.

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