Files
Ruben Fiszel a46aa641f9 feat: add R language support (#8263)
* feat: add R language support

Add R as a new supported scripting language in Windmill, following the
same pattern used for Ruby. Includes:

- Backend: ScriptLang::Rlang enum variant, DB migration, tree-sitter-r
  parser crate with tests, WASM parser binding, R executor with NSJail
  sandboxing, job dispatch and signature parsing
- Frontend: language picker, R icon, syntax highlighting, editor bar
  insertions (Sys.getenv, get_variable, get_resource), schema inference,
  init code template, BETA badge
- CLI: .r extension mapping, sync support, bootstrap template

R scripts use `main <- function(...)` syntax, jsonlite for JSON
serialization, and system curl for the Windmill client helper.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* feat: add R package resolution and installation

Parse library()/require() calls from R scripts to extract dependencies.
Resolve versions from CRAN, cache lockfiles in pip_resolution_cache,
and install packages to a shared R library cache. The run step sets
R_LIBS_USER so installed packages are available to the script.

- Parser: parse_r_requirements() extracts package names from AST
- Executor: resolve() generates lockfile, install() installs from CRAN
- Worker lockfiles: wire up R resolve for dependency jobs

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* feat: add nsjail sandboxing for R resolve and install phases

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: fix R get_variable/get_resource and add sandbox annotation + e2e tests

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: fix R arg inference with JS fallback parser and get_variable/get_resource

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix flake

* nsjail

* nits

* fix: R install improvements - suppress verbose output, flat lockfile logging, Dockerfile R support, rlimits

- Suppress renv verbose output during resolve and install (controlled by #verbose annotation)
- Filter renv from install list (already loaded, causes noisy restart message)
- Log compact "resolved N packages" instead of full renv.lock JSON
- Add R (r-base, r-cran-renv) to DockerfileFull and DockerfileFullEe
- Use disable_rl for nsjail install config (R compiles from source)
- Reduce default concurrency from 20 to 5
- Add rlang to openflow.openapi.yaml
- Fix MainArgSignature (no_main_func -> auto_kind) after main merge

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* final

* fix: remove accidental R install from multiplayer Dockerfile

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix: remove R from Windows build and DockerfileExtra

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix: rename R migration to avoid timestamp collision with trigger_filter_logic

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* all

* fix: R install improvements - suppress verbose output, flat lockfile logging, Dockerfile R support, rlimits

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix: add clear error when Rscript binary is missing

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix: fix type errors in R fallback parser, use format! in wrap(), add R system prompts

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: pyranota <pyra@duck.com>
2026-04-01 06:11:37 +00:00
..
2026-04-01 06:11:37 +00:00

System Prompts

This directory contains the single source of truth for AI system prompts used by both the frontend copilot and CLI guidance.

Structure

system_prompts/
├── base/              # Core instruction templates (manually written)
├── languages/         # Language-specific instructions (manually written)
└── auto-generated/    # Auto-generated files (DO NOT EDIT)
    ├── sdks/          # SDK documentation
    ├── cli/           # CLI command documentation
    ├── prompts.ts     # TypeScript exports
    └── index.ts       # Helper functions

Usage

Regenerating Prompts

When SDK methods or the OpenFlow schema change, run:

python system_prompts/generate.py

This will:

  1. Parse TypeScript and Python SDK files to extract function signatures
  2. Parse the OpenFlow YAML schema
  3. Parse the CLI commands
  4. Assemble complete prompts from markdown files
  5. Generate TypeScript exports in auto-generated/

Scope

These system prompts contain ONLY:

  • How to write Windmill scripts (language syntax, conventions, SDK usage)
  • How to structure Windmill flows (OpenFlow schema, module types, data flow)
  • Resource type handling, S3 operations

They DO NOT contain:

  • Tool usage instructions (edit_code, set_flow_json, etc.)
  • IDE/editor specific commands
  • Testing tool invocations

Tool instructions are added separately by the frontend and CLI.

Integration

Frontend

Uses Vite path alias $system_prompts pointing to auto-generated/:

import { FLOW_GUIDANCE } from "$system_prompts/flow";
import { getLangContext } from "$system_prompts/languages";

CLI

Generates /cli/src/guidance/skills.ts with embedded skill content for wmill init.

Editing Guidelines

  • Edit markdown files in base/, languages/
  • Never edit files in auto-generated/ directly
  • After editing, run generate.py to update exports