Question 1

Why a new format instead of Python?

Accepted Answer

Agents need a format they can reliably generate and execute — not free-form code. .mthds files are declarative, deterministic, and portable: agents write them, humans review them, Pipelex runs them. Python stays in the runtime; the method definition stays agent-readable.

Question 2

What is the MTHDS standard?

Accepted Answer

MTHDS is an open standard for defining, packaging, and distributing AI methods. It has two pillars: the Language (typed concepts, pipes, and domains in .mthds files) and the Package System (versioned dependencies, lock files, cross-package references, and a federated registry at [mthds.sh](https://mthds.sh)). The standard is maintained at [mthds.ai](https://mthds.ai/latest/) and anyone can implement a runtime. Pipelex is the reference implementation.

Question 3

Can other runtimes implement MTHDS?

Accepted Answer

Yes. MTHDS is an open standard with a public specification, not a proprietary format. Any platform can parse .mthds files, validate typed signatures, and execute methods. Pipelex is the reference runtime, but the standard is designed for broad adoption — your methods are never locked to a single tool.

Question 4

How does Pipelex compare to LangGraph, Mastra, Pydantic AI?

Accepted Answer

Those are code-first frameworks with proprietary formats — humans write Python or TypeScript. Pipelex implements the MTHDS open standard: a portable, typed language with a real package system. Your methods aren't locked to any runtime.

Question 5

How does Pipelex compare to n8n, Make, Workato?

Accepted Answer

GUI-based platforms lock methods in their ecosystem. MTHDS methods are plain-text files — version them in Git with semantic versioning, compose them across packages with cross-package references, deploy them anywhere.

Question 6

Is Pipelex an agent framework?

Accepted Answer

No. Pipelex provides deterministic methods that agents call as tools via MCP or API. We make agents reliable at repeatable business tasks — we don't replace your agent stack.

Question 7

When is Pipelex the right choice?

Accepted Answer

Repeatable, deterministic AI tasks: invoice processing, contract analysis, report generation, compliance review. If it needs consistent results at scale, Pipelex fits. Not designed for creative exploration or open-ended tasks.

Question 8

Is it really open-source?

Accepted Answer

Fully. The MTHDS standard and Pipelex runtime are MIT-licensed. The open-core model means enterprise features (managed cloud, advanced observability, certification) are commercial, but the runtime and the standard stay open.

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