refactor: ts dsl drop

.github/workflows/examples.yml

@@ -54,10 +54,6 @@ jobs:
         with:
           shared-key: examples-hm
 
-      - name: Install esbuild (for harmont-ts bundle)
-        working-directory: crates/hm-dsl-engine/harmont-ts
-        run: npm ci
-
       - name: Build hm
         run: cargo build -p harmont-cli
 

.github/workflows/release.yml

@@ -25,10 +25,6 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
 
-      - name: Install esbuild (for harmont-ts bundle)
-        working-directory: crates/hm-dsl-engine/harmont-ts
-        run: npm ci
-
       - name: Set version from tag
         run: |
           VERSION="${GITHUB_REF_NAME#v}"
@@ -181,52 +177,6 @@ jobs:
             cargo publish -p harmont-cli --token ${{ secrets.CRATES_IO_TOKEN }} --allow-dirty --no-verify
           fi
 
-  npm:
-    name: Publish to npm
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    permissions:
-      contents: read
-      id-token: write
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-node@v4
-        with:
-          node-version: "20"
-          registry-url: "https://registry.npmjs.org"
-          cache: npm
-          cache-dependency-path: crates/hm-dsl-engine/harmont-ts/package-lock.json
-
-      # node 20 ships npm 10, which can sign provenance but cannot AUTHENTICATE
-      # via OIDC trusted publishing — that needs npm >= 11.5.1. Without it the
-      # publish PUT goes out unauthenticated and npm masks it as a 404. Upgrade
-      # so the configured trusted publisher actually authenticates the publish.
-      - name: Upgrade npm for OIDC trusted publishing
-        run: npm install -g npm@latest
-
-      - name: Install dependencies
-        working-directory: crates/hm-dsl-engine/harmont-ts
-        run: npm ci
-
-      - name: Build
-        working-directory: crates/hm-dsl-engine/harmont-ts
-        run: npm run build
-
-      - name: Set version from tag
-        working-directory: crates/hm-dsl-engine/harmont-ts
-        run: npm version "${GITHUB_REF_NAME#v}" --no-git-tag-version
-
-      - name: Publish
-        working-directory: crates/hm-dsl-engine/harmont-ts
-        run: |
-          VERSION="${GITHUB_REF_NAME#v}"
-          if npm view @harmont/hm@"$VERSION" version 2>/dev/null; then
-            echo "@harmont/hm@$VERSION already published, skipping"
-          else
-            npm publish --access public --provenance
-          fi
-
   pypi:
     name: Publish to PyPI
     runs-on: ubuntu-latest
@@ -303,16 +253,6 @@ jobs:
         if: matrix.musl
         run: sudo apt-get update && sudo apt-get install -y musl-tools
 
-      - uses: actions/setup-node@v4
-        with:
-          node-version: "20"
-          cache: npm
-          cache-dependency-path: crates/hm-dsl-engine/harmont-ts/package-lock.json
-
-      - name: Install esbuild
-        working-directory: crates/hm-dsl-engine/harmont-ts
-        run: npm ci
-
       - name: Set version from tag
         run: |
           VERSION="${GITHUB_REF_NAME#v}"

.hm/ci.py

@@ -25,11 +25,7 @@ def rust_project(shared_base: hm.Target[hm.Step]) -> tuple[hm.Step, ...]:
     # the build emits an 18-byte stub and the bundled_sources tests fail (CLI-37).
     # Installing Node here also lets the JS-runtime-gated render tests actually
     # run instead of self-skipping.
-    ts_deps = hm.js.project(
-        path="crates/hm-dsl-engine/harmont-ts",
-        base=shared_base,
-    ).install()
-    project = hm.rust.project(path=".", base=ts_deps)
+    project = hm.rust.project(path=".")
     return hm.group([
         project.test(),  # cargo test --workspace --locked — every package
         project.clippy(),
@@ -51,18 +47,6 @@ def py_project(shared_base: hm.Target[hm.Step]) -> tuple[hm.Step, ...]:
     ])
 
 
-@hm.target()
-def ts_project(shared_base: hm.Target[hm.Step]) -> tuple[hm.Step, ...]:
-    project = hm.js.project(
-        path="crates/hm-dsl-engine/harmont-ts",
-        base=shared_base,
-    )
-    return hm.group([
-        project.run("typecheck", label=":typescript: tsc"),
-        project.run("test", label=":test_tube: vitest"),
-    ])
-
-
 @hm.pipeline(
     "ci",
     env={"CI": "true"},
@@ -74,6 +58,5 @@ def ts_project(shared_base: hm.Target[hm.Step]) -> tuple[hm.Step, ...]:
 def ci(
     rust_project: hm.Target[tuple[hm.Step, ...]],
     py_project: hm.Target[tuple[hm.Step, ...]],
-    ts_project: hm.Target[tuple[hm.Step, ...]],
 ) -> list:
-    return [rust_project, py_project, ts_project]
+    return [rust_project, py_project]

CLAUDE.md

@@ -7,22 +7,18 @@ The `cli/` directory is a Cargo workspace.
 - `crates/hm-util/` — shared OS and filesystem utilities.
 - `crates/hm-plugin-protocol/` — wire types (serde structs only).
 - `crates/hm-plugin-sdk/` — authoring SDK for plugin writers.
-Run `cargo build` from the workspace root. Build requires esbuild
-(`npm ci` in `crates/hm-dsl-engine/harmont-ts/`).
+Run `cargo build` from the workspace root.
 
 For cross-cutting doctrine see [PRINCIPLES.md](../PRINCIPLES.md).
 
-## DSLs
+## DSL
 
-Both DSLs live inside `crates/hm-dsl-engine/` so they ship with the crate:
-
-- `crates/hm-dsl-engine/harmont-py/` — the `harmont` Python package (pipeline DSL).
-- `crates/hm-dsl-engine/harmont-ts/` — the `harmont` TypeScript package (pipeline DSL).
+The `harmont` Python package (pipeline DSL) lives inside `crates/hm-dsl-engine/harmont-py/` so it ships with the crate.
 
 ## Keep the SDK, `hm init` templates, and docs in sync
 
 The toolchain helpers in `crates/hm-dsl-engine/` (e.g.
-`harmont-py/harmont/_rust.py`, `harmont-ts/src/toolchains/rust.ts`) are the
+`harmont-py/harmont/_rust.py`) are the
 **public authoring SDK**. They have two downstream surfaces that drift silently
 unless you update them in the same change. **A toolchain change is not done until
 all three agree:**

README.md

@@ -13,12 +13,12 @@
 </p>
 
 <p>
-  <b>CI/CD as real code. Write your pipelines in Python or TypeScript, then run the exact same pipeline locally in Docker or on managed runners in <a href="https://app.harmont.dev">Harmont Cloud</a> — with layer caching and DAG parallelism built in.</b>
+  <b>CI/CD as real code. Write your pipelines in Python, then run the exact same pipeline locally in Docker or on managed runners in <a href="https://app.harmont.dev">Harmont Cloud</a> — with layer caching and DAG parallelism built in.</b>
 </p>
 
 ## What is Harmont?
 
-Harmont lets you define CI/CD pipelines in **TypeScript or Python** and run them
+Harmont lets you define CI/CD pipelines in **Python** and run them
 two ways from a single definition: instantly on your own machine in Docker, or on
 managed runners in [Harmont Cloud](https://app.harmont.dev). It's the same
 pipeline either way — the run you debug locally is byte-for-byte the run that
@@ -76,7 +76,7 @@ cargo install harmont-cli
 hm init
 ```
 
-`hm init` scaffolds a working `.hm/pipeline.{py,ts}` from a template and offers
+`hm init` scaffolds a working `.hm/pipeline.{py}` from a template and offers
 to install Claude Code skills that write and maintain your pipeline. Run it and
 pick your stack from the menu, or name a template up front with `-t`:
 
@@ -99,10 +99,7 @@ same pipeline, on managed runners. See [Cloud](#cloud) below.
 
 ### Or write it by hand
 
-A pipeline is just code. Save this as `.hm/pipeline.py` (or `.hm/pipeline.ts`):
-
-<details open>
-<summary><b>Python</b></summary>
+A pipeline is just code. Save this as `.hm/pipeline.py`:
 
 ```python
 import harmont as hm
@@ -125,37 +122,6 @@ def ci(project: hm.Target[PythonToolchain]) -> tuple[hm.Step, ...]:
     )
 ```
 
-</details>
-
-<details>
-<summary><b>TypeScript</b></summary>
-
-```typescript
-import { pipeline, push, type PipelineDefinition } from "@harmont/hm";
-import { python } from "@harmont/hm/toolchains";
-
-const project = python({ path: "." });
-
-const pipelines: PipelineDefinition[] = [
-  {
-    slug: "ci",
-    triggers: [push({ branch: "main" })],
-    pipeline: pipeline(
-      [
-        project.test(),
-        project.lint(),
-        project.fmt(),
-        project.typecheck(),
-      ],
-    ),
-  },
-];
-
-export default pipelines;
-```
-
-</details>
-
 ```sh
 hm run ci
 ```
@@ -372,7 +338,7 @@ input reference, sub-actions, and caching details.
 ## Examples
 
 The [`examples/`](./examples) directory has a complete, runnable pipeline for
-each stack — every one shipped in **both** Python and TypeScript:
+each stack:
 
 | | | |
 |---|---|---|

crates/hm-dsl-engine/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.0.0-dev"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
-description = "DSL engine: evaluate Python/TypeScript pipeline definitions via system runtimes."
+description = "DSL engine: evaluate Python pipeline definitions via system runtimes."
 keywords = ["ci", "harmont", "dsl"]
 categories = ["command-line-utilities"]