Live survey304 models · 14 providers · 22,792 auditsAudited grill-with-docs · SAFE →What changedHow we verifyllms.txt

Agent skill · Audited from source

Codex

skill · mnemon-dev/mnemonApache-2.0 licenceAudited 18 Oct 2026 · source 433c8a4f0e88

★ 638pushed today
✓SAFEGrade B · 89/100 · 18 Oct 2026 · 433c8a4
638repo stars · whole mnemon-dev/mnemon
InstallView source on GitHub ↗

Is it safe? Yes — SAFE, grade B (89/100). We read this skill's source at commit 433c8a4f0e88 and found no filesystem, network or shell access and no hard-coded secrets. What it does: LLM-supervised persistent memory for AI agents — graph-based recall, cross-session knowledge, single binary. Works with DeepSeek Harness, Claude Code, OpenClaw, and any agent runtime.

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Cite this page

ModelsAtlas. “Codex (mnemon-dev/mnemon)”. Retrieved 18 Oct 2026. https://modelsatlas.com/skills/mnemon-dev/codex

6 skills are called “Codex”. You are viewing mnemon-dev/mnemon.

and 1 more with this name.

Trust audit

Audit 0.4.1 · source read 18 Oct 2026

Trust score89/100✓SAFE B
0 critical0 high1 medium0 low0 info

SAFE means nothing in the source contradicts what the skill says it does. Grade B is shared by 16,667 of 17,602 audited skills.

What the source does

  • FilesystemNone observedNo reads or writes in the source
  • NetworkNone observedNo outbound calls in the source
  • ShellNone observedNo commands run in the source
  • DependenciesPinnedNothing floats
  • SecretsNone foundNo keys in source

Five audit layers

LayerWhat we checkResultFindings
L0 ProvenanceRepo owner, licence, archive status, activityPASS0
L1 Static sourceSecrets, path traversal, supply chain, hidden codeNA0
L2 InstructionsPrompt injection, authority framing, hidden directivesPASS0
L3 InventoryThe files and declarations match the sourceWARN1
L4 SandboxRun in isolation and watch behaviourSKIPPED why0

Gates applied: no behavioural pass.

Findings (1)

MEDIUMInventory / provenanceskill.no_skill_md
F-13 Inventory / provenanceCWE-1104Layer L3
Why
no SKILL.md at the audited path
Fix
a skill without its instruction file cannot be reviewed as one

Audit 0.4.1 · source sha 433c8a4f0e88 · 18 Oct 2026Report an issue or request a re-scan

Provenance

Who published it, and what the verdict is pinned to

  • Publishermnemon-dev GitHub organizationOwner of the repository this skill is read from
  • Source foldermnemon-dev/mnemon/internal/setup/assets/codexThe exact folder we audited
  • LicenceApache-2.0As the repository states it
  • Commit pinned for this verdict433c8a4f0e88A new audit runs when the source changes
  • Repository statusNot archivedPushed today
  • Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

What it tells the agent

Full source on GitHub ↗

We did not capture a SKILL.md for this skill, so there is no instruction text to quote here.

Install

Pinned to the audited commit 433c8a4

Download folder ↗
git clone https://github.com/mnemon-dev/mnemon
git -C mnemon checkout 433c8a4f0e88

The author documents no install command, so this uses the repository directly. Our verdict covers commit 433c8a4f0e88 only.

Works in

The author has not said which agents this skill supports, and we have not tested it in any.

Audit history

Every audit, every source change

  1. ✓SAFE B 89 / 100

    first audit · source 433c8a4f0e88

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Questions about Codex

What does the Codex skill do?
LLM-supervised persistent memory for AI agents — graph-based recall, cross-session knowledge, single binary. Works with DeepSeek Harness, Claude Code, OpenClaw, and any agent runtime.
Is Codex safe to install?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean skill reads B.
What can Codex access on my machine?
The audit observed no filesystem, network or shell use at all in its source.
How current is this page?
The grade is for one exact copy of the source (433c8a4f0e88), read on 2026-10-18. The repository is watched, and a new audit runs when it changes — this is the first audit.

Sources

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