MiMoCode is a terminal-based AI coding assistant that reads and writes code, runs commands, manages Git, and remembers project context across sessions. Developers use it to work with software projects through a command-line interface and connect it to language-model providers; the catalogue includes skills and instructions for it.
Borrowing it
Nothing to install: this file belongs to XiaomiMiMo/MiMo-Code. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/XiaomiMiMo/MiMo-Code/main/AGENTS.mdgit clone --depth 1 https://github.com/XiaomiMiMo/MiMo-CodeWrote 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.
[](https://agentmods.dev/instructions/xiaomimimo/mimo-code/agents-md)<a href="https://agentmods.dev/instructions/xiaomimimo/mimo-code/agents-md"><img src="https://agentmods.dev/badge/instructions/xiaomimimo/mimo-code/agents-md/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.
<a href="https://agentmods.dev/instructions/xiaomimimo/mimo-code/agents-md"><img src="https://agentmods.dev/badge/instructions/xiaomimimo/mimo-code/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00903 | $0.00903 |
| Opus 5.5 | $0.00361 | $0.00361 |
| Sonnet 5.5 | $0.00181 | $0.00181 |
| Haiku 4.5 | $0.00090 | $0.00090 |
Grade A, and why
MiMo-Code AGENTS.md 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 16d 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 — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MiMo-Code
Conventions
- Use MiMoCode Compose skills when available, otherwise use superpowers skill if installed.
- To regenerate the JavaScript SDK, run
./packages/sdk/script/build.ts. - ALWAYS USE PARALLEL TOOLS WHEN APPLICABLE.
- The default branch in this repo is
main. - CI triggers on
main. - Prefer automation: execute requested actions without confirmation unless blocked by missing info or safety/irreversibility.
- Install deps with
bun ci(=bun install --frozen-lockfile) — install perbun.lock, don't mutate the lockfile. ⛔ Do NOT usebun install/npm install. - Comments, docs, shipped skill content and test assertions use synthetic values, never machine-specific ones —
/tmp/examplefor paths,test/modelfor model refs,feat/examplefor branches. - Do not edit
packages/cli/migration/*/migration.sqlthat already shipped — engines have applied those journals; new schema changes get a new migration directory underpackages/cli/migration/.
Style Guide
Match the style of the surrounding code. The rules below apply across the repository.
Types and errors
- Avoid using the
anytype - Inside Effect code, express failures through the Effect error channel (
Effect.try,Effect.tryPromise,Effect.catchTag, typed errors) rather thantry/catch; plain scripts and non-Effect code may usetry/catch
Bun and Node runtimes
- Use Bun APIs where the runtime is Bun-only, like
Bun.file()in the TUI (src/cli/cmd/tui/); build-time macros are fine anywhere, as they never reach the shipped runtime - In core code reachable from
src/node.ts, prefer the Node equivalent when one exists —createHashoverBun.CryptoHasher,prepare()over bun:sqlite'squery()— as that code also ships throughscript/build-node.tsand must run on plain Node - Bun-only calls in core escape both
typecheckandbun test, which run on Bun; existing usage needs no urgent removal, and APIs with no Node equivalent may stay until a runtime seam exists
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.
- 16d ago Changed · -51 lines · -227 tokens per session 392b62dab5c9
- 28d ago Changed · -9 lines · -126 tokens per session 04a2a658cb07
- 1mo ago Changed · +1 lines · +45 tokens per session d414160b76fa
- 1mo ago Changed · +1 lines · +42 tokens per session 03cbe14cb70a
- 2mo ago First seen · 139 lines · 1,169 tokens per session scan A bbf57c5276e3
MiMo-Code AGENTS.md is an instructions file published in the GitHub repository XiaomiMiMo/MiMo-Code (13,735 stars, last pushed yesterday), licensed MIT. It adds 903 tokens to every session, about $0.0036 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.