* feat(flows): preserve step/subflow worker tags under a custom-tagged flow A flow running on a custom worker tag force-propagates that tag to every descendant step, script and nested sub-flow, overriding their own declared tags. This made it impossible to route a specific step or sub-flow to a different worker group. The new opt-in FlowValue.preserve_step_tags lets a step that declares its own non-empty tag run on it; untagged steps still inherit the flow tag. Defaults off to preserve existing behavior. * chore: regenerate system prompts for preserve_step_tags Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * feat(flows): nest preserve_step_tags toggle under flow worker tag setting The toggle only affects routing when the flow has a custom worker tag, so show it as a sub-setting of the Worker Group tag picker, visible only once a tag is set, instead of as a standalone option. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(flows): allow step worker tag picker when preserve_step_tags is enabled When a flow defines a worker tag, the per-step tag picker was replaced by a read-only "Flow's WG" label. With preserve_step_tags enabled the step's own tag is honored, so the picker must remain editable in that case. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(flows): propagate preserve_step_tags to branch and loop bodies payload_from_modules built the synthetic RawFlow for branch/loop bodies with a default FlowValue, dropping preserve_step_tags. Tagged steps inside a branch or loop therefore still inherited the parent flow tag even with the flag enabled. Thread the flag through to the synthetic FlowValue so the behavior is consistent for nested containers. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(flows): clear preserve_step_tags when flow worker tag is removed Avoids the flag lingering as invisible state after the flow tag (and its toggle) are removed. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(flows): repair preserve_step_tags propagation to branch/loop bodies The previous commit added flow.preserve_step_tags at the payload_from_modules call sites but the parameter and FlowValue field were not actually threaded through (a failed edit left the function unchanged), so the crate did not compile. This completes the change: payload_from_modules takes preserve_step_tags and sets it on the synthetic FlowValue for branch/loop bodies. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(flows): complete preserve_step_tags propagation to branch/loop bodies Previous two commits left windmill-worker uncompilable: payload_from_modules received flow.preserve_step_tags at its call sites but the parameter and the synthetic FlowValue field were not actually added. This adds the parameter, sets preserve_step_tags on the synthetic FlowValue, and threads flow.preserve_step_tags through all five call sites. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(flows): clear preserve_step_tags whenever the flow worker tag is removed The flag was only reset when the Worker Group toggle was switched off, not when the tag was cleared directly in the picker (or via the YAML editor), leaving preserve_step_tags=true as invisible state with the advanced badge still reporting it active. Move the cleanup into the reactive block that already tracks the flow tag so every clear path is covered. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Windmill CLI
A simple CLI allowing interactions with windmill from the command line.

You can find more information in Windmill Docs
Installation
Install the wmill CLI tool using npm install -g windmill-cli.
Update to the latest version using wmill upgrade.
Workspaces
To get started run wmill workspace add or use the instructions from the
workspace settings.
Running Flows & Scripts
Run a script or flow using wmill flow/script run u/username/path/to/script and
pass any inputs using --data + Inputs specified as a JSON string or a file
using @ <filename> or stdin using @-.
Curl-style syntax using -d @- for stdin or -d @<filename> is also supported.
Flow Steps and Logs will be streamed during execution automatically.
Pushing Resources, Scripts & More
The CLI can push specifications to a windmill instance. See the examples/ folder for formats.
Switch to a different workspace
wmill workspace switch <workspace_name>
Sync a workspace
Pull
wmill sync pull
Push
wmill sync push
We recommend using the --yaml option to use yaml instead of json as the encoding format. Yaml will be made the default soon.
Pushing individual files
You can push individual resources using
wmill <type> push <file_name> \<remote_name\>. This does not require a special
folder layout or file name, as this is given at runtime.
Listing
All commands support listing by just not providing a subcommand, ie
wmill script will result in a list of scripts. Some allow additional options,
learn about this by specifying --help.
User Management
You can add & remove users via wmill user add/remove, and list them using
wmill user
Pulling
You can pull the entire workspace using wmill pull
Completion
The CLI comes with completions out of the box via wmill completions <shell>.
(Via cliffy)
Bash
To enable bash completions add the following line to your ~/.bashrc:
source <(wmill completions bash)
Fish
To enable fish completions add the following line to your
~/.config/fish/config.fish:
source (wmill completions fish | psub)
Zsh
To enable zsh completions add the following line to your ~/.zshrc:
source <(wmill completions zsh)
Development
AI Guidance Variants
wmill init can now materialize alternate AI guidance bundles without changing
the generated defaults in the repo, but this is exposed as internal env-var
overrides rather than public CLI flags.
Examples:
WMILL_INIT_AI_SKILLS_SOURCE=/path/to/custom/skills wmill init --use-default
WMILL_INIT_AI_SKILLS_SOURCE=/path/to/custom/skills WMILL_INIT_AI_AGENTS_SOURCE=/path/to/AGENTS.md wmill init --use-default
WMILL_INIT_AI_SKILLS_SOURCE=/path/to/custom/skills WMILL_INIT_AI_CLAUDE_SOURCE=/path/to/CLAUDE.md wmill init --use-default
This is the same guidance-writing path used by the benchmark CLI under
ai_evals/, so the benchmark harness and wmill init now generate the same
project guidance shape:
AGENTS.mdCLAUDE.md.agents/skills/*.claude/skills/*
Testing with a local windmill-yaml-validator
To test local changes to the validator before publishing, use npm link:
# In windmill-yaml-validator/
npm run build
npm link
# In cli/
npm link windmill-yaml-validator
Running Tests
Prerequisites:
- PostgreSQL running locally (default:
postgres://postgres:changeme@localhost:5432) - Rust toolchain installed
Run tests locally (full features):
bun test test/
Run tests in CI mode (minimal features, skips EE tests):
CI_MINIMAL_FEATURES=true bun test test/
| Variable | Description |
|---|---|
CI_MINIMAL_FEATURES |
Set to true to skip EE-dependent tests |
DATABASE_URL |
PostgreSQL connection string |
EE_LICENSE_KEY |
Enterprise license key for EE features |
