typedown 0.2.12

Progressive Formalization for Markdown using Pydantic and Pytest

Typedown: Markdown that scales

English | 简体中文

Typedown evolves your team's documentation into a validated knowledge base. It brings the rigor of code to the fluidity of natural language.

"Docs that don't rot."

The Problem: Markdown Doesn't Scale

Markdown is the universal standard for technical documentation. But as your repository grows from 10 to 10,000 files, it becomes a "Write-Only" graveyard:

• Links Break: Moving a file requires grep and prayer.
• Data Drifts: "Status: Active" vs "status: active" vs "Status: ON".
• Context Decays: The implicit model in your head isn't enforced in the text.

The Solution: Typedown

Typedown transforms your documentation repository into a Database. It adds a semantic layer to Markdown, allowing it to "phase transition" from loose text to structured data.

1. Structure (Schema)

Define what your data should look like using Python (Pydantic).

<!-- Defined in a code block -->

```model:User
class User(BaseModel):
    name: str
    role: Literal["admin", "member"]
```

2. Space (Graph)

Use Solid References that never break. Typedown resolves links by Content Hash (L0), Handle (L1), or Global ID (L2).

This report is authored by [[users/alice]].

3. Logic (Validation)

Enforce invariants directly in your documentation. Ensure your architecture rules are respected.

```spec
def check_admin_policy(user: User):
    if user.role == "admin":
        assert user.has_mfa, "Admins need MFA"
```

Installation

Typedown is designed to be used primarily in your editor, backed by a powerful CLI.

1. Editor Integration (Recommended)

For the true "Write-and-Validate" experience, install the VS Code extension:

• VS Code Marketplace
• Open VSX

2. Global CLI (For CI/CD)

Verify your knowledge base in CI pipelines using uv (recommended) or pip:

# Instant run (no install needed)
uvx typedown check

# Install globally
uv tool install typedown

3. For Contributors

If you want to hack on the compiler itself:

git clone https://github.com/IndenScale/typedown.git

Core Philosophy

Typedown is built on the concept of Consensus as Code (CaC).

• Markdown (The Interface): Humans and LLMs speak natural language.
• Pydantic (The Structure): Machines need schemas.
• Pytest (The Law): Systems need invariants.

We call this "Literate Modeling"—you don't leave the document to define the system; the document is the system.

Documentation

• Quick Start: Build your first model.
• Manifesto: Why we built this.
• GEMINI.md: Instructions for AI Agents.

---

License

MIT © IndenScale