Foundry
Agent Skill · cast

implement-cwl-tool-step

Convert an abstract step into a concrete CWL CommandLineTool + step.

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Install with Claude Code

/plugin marketplace add galaxyproject/foundry
/plugin install foundry-skills@galaxy-workflow-foundry

Then invoke as:

/foundry-skills:implement-cwl-tool-step

Install with Codex

codex plugin marketplace add galaxyproject/foundry
codex plugin add foundry-skills@galaxy-workflow-foundry

Then select with /skills or invoke explicitly as:

$implement-cwl-tool-step

Skill Bundle

/ packaged cast
attached files
0
upfront
0
on demand
0
cast rev
n/a
validated
0

Produces: 1 artifact.

Consumes: 2 artifacts.

Artifact Contract

/ skill handoff

Produces

cwl-workflow-draft

CWL Workflow skeleton with one more abstract step replaced by a concrete CommandLineTool step (loop iteration output).

yamlcwl-workflow-draft.cwl
Raw artifact contract 
{
  "id": "cwl-workflow-draft",
  "kind": "yaml",
  "default_filename": "cwl-workflow-draft.cwl",
  "description": "CWL Workflow skeleton with one more abstract step replaced by a concrete CommandLineTool step (loop iteration output)."
}

Consumes

cwl-tool-summary

Compact CWL tool summary from [[summarize-cwl-tool]]; binds the abstract step to a concrete CommandLineTool.

Raw artifact contract 
{
  "id": "cwl-tool-summary",
  "description": "Compact CWL tool summary from [[summarize-cwl-tool]]; binds the abstract step to a concrete CommandLineTool.",
  "producers": [
    "summarize-cwl-tool"
  ]
}

cwl-workflow-draft

CWL Workflow skeleton being filled in step by step; the step replaces a placeholder in this draft.

Raw artifact contract 
{
  "id": "cwl-workflow-draft",
  "description": "CWL Workflow skeleton being filled in step by step; the step replaces a placeholder in this draft.",
  "producers": [
    "implement-cwl-tool-step",
    "summary-to-cwl-template"
  ]
}

SKILL.md


# implement-cwl-tool-step

Follow the procedure below and use the artifact/reference sections as the runtime contract.

## When To Use

- Convert an abstract step into a concrete CWL CommandLineTool + step.

## Inputs

- Read artifact `cwl-tool-summary`. Produced by `summarize-cwl-tool`. Compact CWL tool summary from summarize-cwl-tool; binds the abstract step to a concrete CommandLineTool.
- Read artifact `cwl-workflow-draft`. Produced by `implement-cwl-tool-step`, `summary-to-cwl-template`. CWL Workflow skeleton being filled in step by step; the step replaces a placeholder in this draft.

## Outputs

- Write artifact `cwl-workflow-draft` as `cwl-workflow-draft.cwl`. Format: `yaml`. CWL Workflow skeleton with one more abstract step replaced by a concrete CommandLineTool step (loop iteration output).

## Required Tools

- None declared. Procedure should not assume external CLIs are present.

## Load Upfront

- None declared.

## Load On Demand

- None declared.

## Validation

- None declared.

## Procedure

Bind one abstract step to a concrete CWL CommandLineTool using its summarize-cwl-tool summary, replacing a single placeholder in the CWL workflow draft per loop iteration.

## Runtime Notes

- Do not read Foundry source files at runtime; use only files packaged in this skill bundle and user-supplied artifacts.
- Preserve declared artifact filenames unless the user or harness supplies explicit paths.
- Carry unresolved assumptions into the output artifact instead of silently inventing missing source evidence.