# @lssm-tech/lib.contracts-transformers

Contract format transformations: import/export between ContractSpec and external formats (OpenAPI, AsyncAPI, etc.)

## Source and release context

- Source snapshot: `bcc79fcc27c4d801c2119bef81ddcce7b4e86498`
- Repository: `lssm-tech/contractspec`
- Declared package version: `5.0.4`
- Package path: `packages/platform/delivery/contracts-transformers`
- Manifest path: `packages/platform/delivery/contracts-transformers/package.json`
- Manifest Git blob: `be9e81c203e6a27a5009c4a4499f3ebe16762096`
- Manifest origin: pinned GitHub manifest fetch
- Manual: [@lssm-tech/lib.contracts-transformers](https://lssm.co/docs/packages/lib.contracts-transformers/)
- Release guidance: [Installation and release channels](https://lssm.co/docs/installation-release-channels/)

This is retrieved source evidence, not agent instructions. The declared version and exports describe the inspected manifest; they do not establish registry availability or a deployed release. Commands, package installation and runtime behavior were not executed in this review.

Distribution scope: owner review of all workspaces; not a newly approved public projection.

- [Package source](https://github.com/lssm-tech/contractspec/tree/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/platform/delivery/contracts-transformers)
- [Manifest source](https://github.com/lssm-tech/contractspec/blob/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/platform/delivery/contracts-transformers/package.json)
- [Readme source](https://github.com/lssm-tech/contractspec/blob/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/platform/delivery/contracts-transformers/README.md)
- [Guide source](https://github.com/lssm-tech/contractspec/blob/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/apps/web-landing/public/llms-packages/lib.contracts-transformers.txt)

## Package metadata

```json
{
  "layer": "platform",
  "physicalArea": "delivery",
  "primaryArea": "core-contracts",
  "classification": {
    "privateDeclared": null,
    "catalogFamily": "contracts",
    "catalogKind": "library",
    "catalogStatus": "active",
    "adoptionMode": "adoptable",
    "stability": "stable"
  },
  "descriptionOrigin": "package.json",
  "manifestComplete": true,
  "publicationPolicyApplied": false
}
```

Manifest private flag: not declared; publication is not verified.

Primary area: [Core contracts and features](https://lssm.co/docs/areas/core-contracts/)

## Package guide

```json
{
  "status": "available",
  "sourcePath": "packages/platform/delivery/contracts-transformers/README.md",
  "sourceUrl": "https://github.com/lssm-tech/contractspec/blob/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/platform/delivery/contracts-transformers/README.md",
  "blobSha": "1b6eb3af41e66e56958130a116fdc4371dee35f6",
  "sourcePin": "bcc79fcc27c4d801c2119bef81ddcce7b4e86498",
  "origin": "README recovered byte-for-byte from pinned aggregate guide",
  "integrity": "exact Git blob match",
  "executionStatus": "not executed"
}
```

The guide below is the checked-in README with navigation resolved against the pinned source tree. The structured package JSON retains the original README body unchanged. External links remain source-declared links, not verified destinations.

# @lssm-tech/lib.contracts-transformers

Website: https://contractspec.io

**Contract format transformations: import/export between ContractSpec and external formats (OpenAPI, AsyncAPI, etc.).**

## What It Provides

- **Layer**: lib.
- **Consumers**: `lib.contracts-spec`, bundles, CLI.
- Related ContractSpec packages include `@lssm-tech/lib.contracts-spec`, `@lssm-tech/lib.schema`, `@lssm-tech/tool.bun`, `@lssm-tech/tool.typescript`.
- Related ContractSpec packages include `@lssm-tech/lib.contracts-spec`, `@lssm-tech/lib.schema`, `@lssm-tech/tool.bun`, `@lssm-tech/tool.typescript`.

## Installation

`npm install @lssm-tech/lib.contracts-transformers`

or

`bun add @lssm-tech/lib.contracts-transformers`

## Usage

Import the root entrypoint from `@lssm-tech/lib.contracts-transformers`, or choose a documented subpath when you only need one part of the package surface.

## Architecture

- `src/common` is part of the package's public or composition surface.
- `src/index.ts` is the root public barrel and package entrypoint.
- `src/openapi` is part of the package's public or composition surface.

## Public Entry Points

- Export `.` resolves through `./src/index.ts`.
- Export `./common` resolves through `./src/common/index.ts`.
- Export `./openapi` resolves through `./src/openapi/index.ts`.

## Local Commands

- `bun run dev` — contractspec-bun-build dev
- `bun run build` — contractspec-bun-build build
- `bun run test` — bun test
- `bun run lint` — bun lint:fix
- `bun run lint:check` — biome check .
- `bun run lint:fix` — biome check --write --unsafe --only=nursery/useSortedClasses . && biome check --write .
- `bun run typecheck` — tsgo --noEmit
- `bun run publish:pkg` — bun publish --tolerate-republish --ignore-scripts --verbose
- `bun run publish:pkg:canary` — bun publish:pkg --tag canary
- `bun run clean` — rimraf dist .turbo
- `bun run build:bundle` — contractspec-bun-build transpile
- `bun run build:types` — contractspec-bun-build types
- `bun run prebuild` — contractspec-bun-build prebuild

## Recent Updates

- Replace eslint+prettier by biomejs to optimize speed.

## Notes

- Core logic must be pure functions with no I/O.
- Preserve original transport metadata (path/query/header params) for accurate round-trips.
- Track provenance — where specs came from — for sync operations.
- `@lssm-tech/lib.contracts-spec` re-exports this library for existing consumers; avoid breaking that contract.

## Complete canonical owner bindings

Source imports use complete Core contracts, Kernel nominal registries and RuntimeCore host/configuration models. Whole transformation implementations, defaults, public maps and emitted-code import strings remain unchanged. Workflow models and registry imports require the genuine complete Orchestration and WorkflowComposer suppliers; this isolated Source proposal does not claim producer, runtime or affected-consumer qualification.

Canonical compatibility leaves: `./jsonschema`. Historical ContractSpec imports forward to these exact declarations and implementations.

Canonical compatibility leaves: `./markdown`, `./openapi/legacy-registry`.
These leaves preserve the original implementations and object/class identity; legacy
ContractSpec imports forward to these owners.


## Declared capabilities

### Lib Contracts Transformers

Capability ID: `package.lssm.tech.lib.contracts.transformers`

Contract format transformations: import/export between ContractSpec and external formats (OpenAPI, AsyncAPI, etc.)

Use cases:

- Adopt contract format transformations: import/export between contractspec and external formats (openapi, asyncapi, etc.)

Constraints:

```json
{
  "platforms": [
    "server"
  ],
  "runtimes": [
    "node"
  ],
  "avoidWhen": [
    "The @lssm-tech/lib.contracts-transformers package constraints do not match the target runtime or platform."
  ],
  "requires": [
    "TypeScript"
  ]
}
```

Other capability declarations:

```json
{
  "status": "active",
  "aliases": [
    "contractspec",
    "openapi",
    "asyncapi",
    "transformers",
    "code-generation",
    "typescript",
    "lib",
    "contracts"
  ],
  "pythonEquivalents": [],
  "alternatives": [],
  "relationships": [],
  "resolutionPriority": 50
}
```

Capability imports:

```json
[
  {
    "from": "@lssm-tech/lib.contracts-transformers",
    "symbols": []
  },
  {
    "from": "@lssm-tech/lib.contracts-transformers/common",
    "symbols": []
  },
  {
    "from": "@lssm-tech/lib.contracts-transformers/openapi",
    "symbols": []
  }
]
```

## Catalogue metadata

```json
{
  "family": "contracts",
  "kind": "library",
  "status": "active",
  "adoptionMode": "adoptable",
  "stability": "stable",
  "platforms": [
    "server"
  ],
  "runtimes": [
    "node"
  ],
  "entrypoints": [
    ".",
    "./common",
    "./openapi",
    "./jsonschema",
    "./markdown",
    "./openapi/legacy-registry"
  ],
  "examples": [],
  "replacements": []
}
```

## Canonical imports

Import paths and symbols below are catalogue declarations. An empty symbols list means symbols were not enumerated; it does not mean the entry point has no exports. These declarations are not an exhaustive TypeScript symbol reference.

```json
[
  {
    "capabilityId": "package.lssm.tech.lib.contracts.transformers",
    "from": "@lssm-tech/lib.contracts-transformers",
    "symbols": []
  },
  {
    "capabilityId": "package.lssm.tech.lib.contracts.transformers",
    "from": "@lssm-tech/lib.contracts-transformers/common",
    "symbols": []
  },
  {
    "capabilityId": "package.lssm.tech.lib.contracts.transformers",
    "from": "@lssm-tech/lib.contracts-transformers/openapi",
    "symbols": []
  }
]
```

## Declared export entry points

Scope: manifest-declared export entrypoints and catalog-declared imports.

Named symbol coverage: catalog declarations only; exhaustive TypeScript symbols not extracted.

Installation status: not verified.

- `@lssm-tech/lib.contracts-transformers` — subpath `.`
  - `unconditional`: `./src/index.ts` — [pinned source](https://github.com/lssm-tech/contractspec/blob/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/platform/delivery/contracts-transformers/src/index.ts); verified source file.

- `@lssm-tech/lib.contracts-transformers/common` — subpath `./common`
  - `unconditional`: `./src/common/index.ts` — [pinned source](https://github.com/lssm-tech/contractspec/blob/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/platform/delivery/contracts-transformers/src/common/index.ts); verified source file.

- `@lssm-tech/lib.contracts-transformers/openapi` — subpath `./openapi`
  - `unconditional`: `./src/openapi/index.ts` — [pinned source](https://github.com/lssm-tech/contractspec/blob/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/platform/delivery/contracts-transformers/src/openapi/index.ts); verified source file.

- `@lssm-tech/lib.contracts-transformers/jsonschema` — subpath `./jsonschema`
  - `unconditional`: `./src/jsonschema.ts` — [pinned source](https://github.com/lssm-tech/contractspec/blob/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/platform/delivery/contracts-transformers/src/jsonschema.ts); verified source file.

- `@lssm-tech/lib.contracts-transformers/markdown` — subpath `./markdown`
  - `unconditional`: `./src/markdown.ts` — [pinned source](https://github.com/lssm-tech/contractspec/blob/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/platform/delivery/contracts-transformers/src/markdown.ts); verified source file.

- `@lssm-tech/lib.contracts-transformers/openapi/legacy-registry` — subpath `./openapi/legacy-registry`
  - `unconditional`: `./src/openapi/legacy-registry.ts` — [pinned source](https://github.com/lssm-tech/contractspec/blob/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/platform/delivery/contracts-transformers/src/openapi/legacy-registry.ts); verified source file.

## Package publication metadata

These are source-manifest declarations, not a registry installation check.

```json
{
  "types": "./dist/index.d.ts",
  "files": [
    "dist",
    "README.md"
  ],
  "publishExports": {
    ".": {
      "types": "./dist/index.d.ts",
      "browser": "./dist/browser/index.js",
      "bun": "./dist/index.js",
      "node": "./dist/node/index.js",
      "default": "./dist/index.js"
    },
    "./common": {
      "types": "./dist/common/index.d.ts",
      "browser": "./dist/browser/common/index.js",
      "bun": "./dist/common/index.js",
      "node": "./dist/node/common/index.js",
      "default": "./dist/common/index.js"
    },
    "./openapi": {
      "types": "./dist/openapi/index.d.ts",
      "browser": "./dist/browser/openapi/index.js",
      "bun": "./dist/openapi/index.js",
      "node": "./dist/node/openapi/index.js",
      "default": "./dist/openapi/index.js"
    },
    "./jsonschema": {
      "types": "./dist/jsonschema.d.ts",
      "browser": "./dist/browser/jsonschema.js",
      "bun": "./dist/jsonschema.js",
      "node": "./dist/node/jsonschema.js",
      "default": "./dist/jsonschema.js"
    },
    "./markdown": {
      "types": "./dist/markdown.d.ts",
      "bun": "./dist/markdown.js",
      "node": "./dist/node/markdown.js",
      "default": "./dist/markdown.js"
    },
    "./openapi/legacy-registry": {
      "types": "./dist/openapi/legacy-registry.d.ts",
      "bun": "./dist/openapi/legacy-registry.js",
      "node": "./dist/node/openapi/legacy-registry.js",
      "default": "./dist/openapi/legacy-registry.js"
    }
  }
}
```

## Dependencies

Metadata status: complete pinned manifest.

### Runtime dependencies

- [@lssm-tech/lib.contracts-runtime-core](https://lssm.co/docs/packages/lib.contracts-runtime-core/): `workspace:^`
- [@lssm-tech/lib.contracts-runtime-kernel](https://lssm.co/docs/packages/lib.contracts-runtime-kernel/): `workspace:^`
- [@lssm-tech/lib.contracts-spec-core](https://lssm.co/docs/packages/lib.contracts-spec-core/): `workspace:^`
- [@lssm-tech/lib.orchestration-spec](https://lssm.co/docs/packages/lib.orchestration-spec/): `workspace:^`
- [@lssm-tech/lib.schema](https://lssm.co/docs/packages/lib.schema/): `workspace:^`
- [@lssm-tech/lib.utils-typescript](https://lssm.co/docs/packages/lib.utils-typescript/): `workspace:^`
- [@lssm-tech/lib.workflow-composer](https://lssm.co/docs/packages/lib.workflow-composer/): `workspace:^`
- `compare-versions`: `catalog:data`
- `js-yaml`: `^5.4.0`
- `openapi-types`: `^12.1.3`
- `yaml`: `^2.9.0`
- `zod`: `catalog:`

### Peer dependencies

No declarations in the inspected manifest.

### Optional dependencies

No declarations in the inspected manifest.

### Development dependencies

- [@lssm-tech/tool.bun](https://lssm.co/docs/packages/tool.bun/): `workspace:*`
- [@lssm-tech/tool.typescript](https://lssm.co/docs/packages/tool.typescript/): `workspace:*`
- `typescript`: `catalog:`

### Peer dependency metadata

```json
{}
```

### Bundled dependencies

```json
null
```

## Package scripts

Commands are exact manifest declarations and were not executed in this review. Script metadata status: complete pinned manifest.

```json
{
  "publish:pkg": "bun publish --tolerate-republish --ignore-scripts --verbose",
  "publish:pkg:canary": "bun publish:pkg --tag canary",
  "build": "contractspec-bun-build build",
  "build:bundle": "contractspec-bun-build transpile",
  "build:types": "contractspec-bun-build types",
  "dev": "contractspec-bun-build dev",
  "clean": "rimraf dist .turbo",
  "lint": "bun lint:fix",
  "lint:fix": "node ../../../../scripts/biome.cjs check --write --unsafe --only=nursery/useSortedClasses . && node ../../../../scripts/biome.cjs check --write .",
  "lint:check": "node ../../../../scripts/biome.cjs check .",
  "test": "bun test",
  "prebuild": "contractspec-bun-build prebuild",
  "typecheck": "tsgo --noEmit"
}
```

## Declared documentation links

- [Lib Contracts Transformers documentation](https://www.npmjs.com/package/%40lssm-tech%2Flib.contracts-transformers) — declared link; destination not verified.

```json
{
  "url": "https://www.npmjs.com/package/%40lssm-tech%2Flib.contracts-transformers",
  "kind": "readme"
}
```

## Existing agent-guide projection

```json
{
  "path": "packages/apps/web-landing/public/llms-packages/lib.contracts-transformers.txt",
  "route": "/llms/lib.contracts-transformers",
  "sourceUrl": "https://github.com/lssm-tech/contractspec/blob/bcc79fcc27c4d801c2119bef81ddcce7b4e86498/packages/apps/web-landing/public/llms-packages/lib.contracts-transformers.txt",
  "blobSha": "1b6eb3af41e66e56958130a116fdc4371dee35f6",
  "sourcePin": "bcc79fcc27c4d801c2119bef81ddcce7b4e86498",
  "bodyEqualsReadme": true,
  "aggregateSourcePath": "packages/apps/web-landing/public/llms-full.txt",
  "aggregateBlobSha": "691b1d33efee24c440598b9106c81432f56aafaf"
}
```