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.
npx agentmods add skills/xiaomimimo/mimo-code/matenpx skills add XiaomiMiMo/MiMo-Code --skill mategit clone --depth 1 https://github.com/XiaomiMiMo/MiMo-CodeWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00077 | $0.01504 |
| Opus 5 | $0.00039 | $0.00752 |
| Sonnet 5 | $0.00015 | $0.00301 |
| Haiku 4.5 | $0.00008 | $0.00150 |
Grade A, and why
mate 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mate Pet Creator
Create animated desktop pet characters for MiMo Desktop's Mate (桌面伙伴) system.
Output Structure
A valid custom pet lives in a folder with this structure:
<pet-id>/
├── manifest.json # Required — animation metadata
└── spritesheet.webp # Required — all animation frames in a grid
The user places this folder in their MiMo Desktop custom pets directory (userData/pets/<pet-id>/), then clicks "Refresh" in Settings → Mate to load it.
Manifest Schema
{
"id": "my-pet",
"name": "My Pet",
"description": "A cute custom pet",
"version": 1,
"spritesheet": "spritesheet.webp",
"frameWidth": 240,
"frameHeight": 240,
"columns": 8,
"totalFrames": 16,
"animations": {
"idle": { "row": 0, "frames": 8, "fps": 8, "loop": true }
}
}
Required Fields
| Field | Type | Description |
|---|---|---|
id |
string | Unique identifier (kebab-case) |
name |
string | Display name |
version |
number | Always 1 |
spritesheet |
string | Filename of the spritesheet image |
frameWidth |
number | Width of each frame in pixels |
frameHeight |
number | Height of each frame in pixels |
columns |
number | Number of columns in the spritesheet grid |
totalFrames |
number | Total number of frames across all animations |
animations |
object | At minimum must include idle |
Optional Fields
| Field | Type | Description |
|---|---|---|
description |
string | Shown in settings UI |
anchorX |
number | Horizontal anchor (0–1, default 0.5) for centering |
Animation Definition
Each animation entry:
| Field | Type | Description |
|---|---|---|
row |
number | Row index in the spritesheet (0-based) |
frames |
number | Number of frames in this animation |
fps |
number | Playback speed (recommended: 6–12) |
loop |
boolean | Whether the animation loops |
The idle animation is required — it plays by default when the pet is loaded.
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.
- 2d ago First seen · 159 lines · 77 tokens per session scan A 10a38a9f263c
mate is a skill published in the GitHub repository XiaomiMiMo/MiMo-Code (12,904 stars, last pushed 2d ago), licensed MIT. It adds 77 tokens to every session and 1,504 once invoked, about $0.0004 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 2026-08-30.
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