mnemon

mnemon is a skill for Claude Code, Codex from mnemon-dev/mnemon. It costs 30 tokens per session (729 once invoked), scanned A, original, Apache-2.0.

A persistent memory tool for MiniMax Code that stores and recalls project facts, decisions, preferences, and related context. It uses the mnemon command-line tool.

In plain words
What is it for?
Use it to search or recall earlier context, record non-secret decisions and facts, connect related memories, review memory status, or remove stored memories.
Why use it?
It prevents important context from being lost between tasks or conversations. You can recall relevant history before work and save durable information afterward.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to search or recall earlier context, record non-secret decisions and facts, connect related memories, review memory status, or remove stored memories.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mnemon-dev/mnemon/minimax
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 mnemon-dev/mnemon --skill minimax
Clone the repo
git clone --depth 1 https://github.com/mnemon-dev/mnemon

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 mnemon

README.md
[![agentmods](https://agentmods.dev/badge/skills/mnemon-dev/mnemon/minimax/github.svg)](https://agentmods.dev/skills/mnemon-dev/mnemon/minimax)
Your own site
<a href="https://agentmods.dev/skills/mnemon-dev/mnemon/minimax"><img src="https://agentmods.dev/badge/skills/mnemon-dev/mnemon/minimax/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 mnemon

Your own site · 80×15
<a href="https://agentmods.dev/skills/mnemon-dev/mnemon/minimax"><img src="https://agentmods.dev/badge/skills/mnemon-dev/mnemon/minimax.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 729 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original 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 $0.00030 $0.00729
Opus 5.5 $0.00012 $0.00292
Sonnet 5.5 $0.00006 $0.00146
Haiku 4.5 $0.00003 $0.00073

Measured 1mo ago against content hash baa5c180549a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mnemon 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 1mo 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.

internal/memory/setup/assets/minimax/SKILL.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mnemon memory

Use mnemon through MiniMax Code's shell tools when durable context would improve the task.

Workflow

  1. Recall before work when prior preferences, decisions, constraints, or project history could change the answer:

    mnemon recall "<focused query>" --limit 10
    
  2. Remember only durable, non-secret information after it becomes clear:

    mnemon remember "<fact>" --cat <preference|decision|insight|fact|context> --imp <1-5> --entities "e1,e2" --source agent
    
  3. Review causal_candidates and semantic_candidates returned by remember. Link only relationships that are genuinely useful:

    mnemon link <id> <candidate> --type <causal|semantic> --weight <0-1>
    

The optional behavioral guide is stored at ${MNEMON_DATA_DIR:-$HOME/.mnemon}/prompt/guide.md. Read it when memory judgment is relevant; do not inject it into unrelated work.

Recall Intent

Keep focused queries and memories in their original language. When the user's meaning is clear, choose --intent WHY (reasons), --intent WHEN (timing), --intent ENTITY (what/who), or --intent GENERAL (neutral retrieval). For example: mnemon recall "<query>" --intent WHY. The override works in any language; --verbose reports meta.intent and meta.intent_source (auto or override).

Automatic cues cover some forms in English, Mandarin Chinese (simplified and traditional), Hindi (Devanagari), Spanish, Modern Standard Arabic, French, Bengali (Bengali script), Portuguese, Indonesian (Latin script), Russian (Cyrillic), and German. Unrecognized forms use GENERAL; conflicting cues involving additional languages also use GENERAL. English/Chinese-only scoring is preserved. This is a lexical heuristic, not full language understanding. See the supported forms, script variants, and limits.

Other commands

mnemon search "<query>" --limit 10
mnemon related <id> --edge causal
mnemon forget <id>
mnemon status
mnemon log
mnemon store list

Read the full file on GitHub · 71 lines

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. 1mo ago Changed · +17 lines baa5c180549a
  2. 1mo ago First seen · 54 lines · 30 tokens per session scan A dc0957c5f4f0

Subscribe to this mod's changes

mnemon is a skill published in the GitHub repository mnemon-dev/mnemon (634 stars, last pushed 6d ago), licensed Apache-2.0. It adds 30 tokens to every session and 729 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.

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