Mistral Vibe is a command-line coding assistant that lets users converse with a codebase and use natural language to explore or change projects. Developers use it for file editing, code searching, version-control tasks, and shell commands through Mistral’s models. Its catalogue add-ons provide skills and instructions for customizing the assistant’s workflows.
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/mistralai/mistral-vibe/vibe-python-stylenpx skills add mistralai/mistral-vibe --skill vibe-python-stylegit clone --depth 1 https://github.com/mistralai/mistral-vibeWrote 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/skills/mistralai/mistral-vibe/vibe-python-style)<a href="https://agentmods.dev/skills/mistralai/mistral-vibe/vibe-python-style"><img src="https://agentmods.dev/badge/skills/mistralai/mistral-vibe/vibe-python-style.svg" alt="Measured on agentmods" 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 | $0.00056 | $0.01129 |
| Opus 5 | $0.00028 | $0.00564 |
| Sonnet 5 | $0.00011 | $0.00226 |
| Haiku 4.5 | $0.00006 | $0.00113 |
Grade A, and why
vibe-python-style 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.
How it starts
The opening of the file, as written. The whole thing — 60 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Vibe Python Style
Conventions for writing Python in the Vibe codebase. Apply whenever writing, reviewing, or refactoring Python code.
Style
- Prefer
match/caseover longif/elifchains. - Use the walrus operator
:=only when it shortens code and improves clarity. - Be a never-nester: early returns and guard clauses over nested blocks.
- Modern type hints only: built-in generics (
list,dict) and|unions. Never importOptional,Union,Dict,Listfromtyping. - Use
pathlib.Path(andanyio.Pathin async paths) instead ofos.path. - Use f-strings, comprehensions, and context managers; follow PEP 8.
- Enums:
StrEnum/IntEnumwithauto()and UPPERCASE members. For type-mixing, the mix-in type comes beforeEnumin the bases. Add methods or@propertyrather than parallel lookup tables. - Write declarative, minimalist code: express intent, drop boilerplate.
- Never call a private method from outside of its class in production code. Accessing private methods in tests is acceptable.
- Avoid comments and docstrings, except for when there's a hard to spot corner case
Typing & imports
- Pyright is strict and gates CI; fix types at the source.
- No relative imports —
ban-relative-imports = "all". Alwaysfrom vibe.core.x import …. - No inline
# type: ignoreor# noqa. Fix with refined signatures (TypeVar, Protocol),isinstanceguards,typing.castwhen control flow guarantees the type, or a small typed wrapper at the boundary.
TYPE_CHECKING and lazy imports
Moving imports under if TYPE_CHECKING: or into function bodies cuts startup time but risks runtime NameError. Before merging any import-deferral change, run:
- Ruff
TC004(pre-commit hook) — per-file: flagsTYPE_CHECKING-only names referenced at runtime. uv run python scripts/check_import_contracts.py— runtime cross-file: imports everyfrom <mod> import <name>acrossvibe/andtests/to verify it resolves; also rebuilds Pydantic models to catch lazily-failing field types. Catches cross-file re-exportsTC004misses. Missing non-vibe deps are non-blocking warnings.uv run scripts/suggest_lazy_imports.py— informational: reports deferral candidates (TC001–TC003+ single-function heuristic). Not gated.
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.
- 6d ago First seen · 60 lines · 56 tokens per session scan A 1998a7f0dc9f
vibe-python-style is a skill published in the GitHub repository mistralai/mistral-vibe (4,916 stars, last pushed yesterday), licensed Apache-2.0. It adds 56 tokens to every session and 1,129 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 2026-08-30.
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