# How does Provely add a new vendor?

> The compiler reads a vendor schema, its documents, its events and its sandbox behaviour, then signs one skill. Six stages and six confidence dimensions.

Canonical: https://provely.sh/docs/integration-compiler  
Last reviewed: 2026-09-05  

**The compiler reads the vendor schema, the documents, the event catalogue and the sandbox behaviour. It writes the contracts, generates the conformance tests, scores six dimensions, and signs one skill.**

Each vendor draws the line between an acknowledgement and an outcome somewhere else. You never write that logic. The compiler reads the vendor’s schema, documents, events and sandbox behaviour, and signs one skill.

*Compile a vendor*

```text
$ provely skill generate stripe
$ provely skill generate --openapi ./vendor.yaml
```

## Which stages does the compiler run?

1. **Ingest** Read the OpenAPI or GraphQL schema, the reference documents, the event catalogue and the SDK types.
2. **Classify** Mark every operation that changes the world. Infer the lifecycle of each resource.
3. **Plan the evidence** Find the readback, the event and the independent system that prove the outcome.
4. **Synthesise** Write the completion contracts. Add the negative postconditions that catch duplicates.
5. **Test** Generate the conformance cases. Run them against the vendor sandbox.
6. **Certify and sign** Score six dimensions. Apply the hard caps. Sign the skill and publish it.

## How is a skill certified?

Every skill scores six dimensions. **Generated draft** at 50, **Verified** at 75, **Official** at 90. An undocumented semantic caps the score at 49 and is marked REQUIRES_REVIEW. One known false VERIFIED rejects the skill.

> A skill states its certification level and its last conformance run on its own page. Read [the verified services](/verify).

## Read next

- [See every verified service](https://provely.sh/verify)
- [Read how Provely tracks provider versions](https://provely.sh/docs/version-support)
- [Read the service verification skill definition](https://provely.sh/glossary/skill)