* fix(raw-apps): prevent and surface the silent blank screen from an unmounted #root
An `index.tsx` written as a bare `export default function App() {...}` with
no mount call builds and runs without throwing: the preview executes the
bundle against an empty `<div id="root">` and auto-renders nothing, so the
JSX never runs, nothing reaches the console or the runtime-error overlay,
and the app is blank with no diagnostic.
Prevent it: the raw-app system prompt and the in-chat app prompt now state
that `index.tsx` is the mount entrypoint, show the mount shim for React,
Svelte and Vue, and call out that a bare component fails silently.
Surface it: when a build still mounts nothing, the preview harness posts
`emptyRender` and the editor shows an error overlay naming the missing
call. The harness reports only when nothing is on screen AND the app never
looked `#root` up, so an app that mounted but paints nothing yet (a fetch
in flight, an unresolved Suspense) is never flagged; `renderAppeared`
withdraws the overlay if a deferred mount lands late.
The handlers stay dormant until the builder tarball that emits these
messages is pinned via `ui_builder_artifact.json`.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* chore(raw-apps): pin the UI builder artifact that emits emptyRender
Activates the "Nothing was mounted" overlay: the pinned tarball predates
the harness change, so the host handlers were dormant until now.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* chore: drop a screenshot accidentally committed at the repo root
Not referenced anywhere; the PR's screenshots are hosted externally.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(raw-apps): make the unmounted-app guidance framework-aware
The detector fires for every raw-app framework, but the overlay and the
prompts named React's `index.tsx` and `createRoot` unconditionally. Svelte
and Vue apps mount from `index.ts` via `mount` / `createApp`, so the
guidance pointed at a nonexistent entrypoint and an unavailable API.
Derive the entrypoint and mount call from the app's files, keyed off file
extensions rather than the template filenames, which users rename.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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)
│ ├── flow-base.md # Shared OpenFlow structure guidance
│ └── flow-cli.md # CLI/local-agent workflow guidance for write-flow skill
├── 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
To also refresh the standalone skills in a Claude plugin checkout:
python system_prompts/generate.py --plugin-dir ~/windmill-claude-plugin
--plugin-dir accepts:
- the
windmill-claude-pluginrepo root - a plugin root such as
plugins/windmill - a direct
skills/directory
To regenerate the public docs repo (consumed by context7):
python system_prompts/generate.py --context7-dir ~/windmill-cli-docs
--context7-dir writes a fully-rendered snapshot (AGENTS.md,
cli-commands.md, skills/<name>/SKILL.md, README.md, manifest.json
with the Windmill version) with all template placeholders resolved —
suitable for ingestion by docs aggregators. In CI this runs from
.github/workflows/publish-cli-docs.yml on every release tag. The
generator refuses to wipe the target directory unless it's empty or has
a context7 marker (context7.json, manifest.json, or a
windmill-cli-docs git remote), so a typo can't delete unrelated files.
This will:
- Parse TypeScript and Python SDK files to extract function signatures
- Parse the OpenFlow YAML schema
- Parse the CLI commands
- Assemble complete prompts from markdown files
- Generate TypeScript exports in
auto-generated/ - Optionally refresh plugin-ready standalone
SKILL.mdfiles in the target directory
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.
CLI-only workflow instructions live in base/flow-cli.md and are included in the
generated write-flow skill for wmill init. They are intentionally excluded
from the frontend flow chat prompt.
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.gen.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.pyto update exports