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Chain multiple skills and actions into named workflows with error handling and conditional branching.
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Based on SOC occupation classification
| name | workflow-chain |
| description | Chain multiple skills and actions into named workflows with error handling and conditional branching. |
| version | 1.0.0 |
| metadata | {"echo":{"tags":["Workflow","Automation","Chain","Pipeline","Orchestration"]}} |
Orchestrate multi-step workflows by chaining skills and actions.
Workflows are YAML files in ~/.echo-agent/workflows/:
name: morning-routine
trigger: cron "0 8 * * *"
steps:
- id: get_weather
skill: weather
input: {location: "Beijing"}
- id: get_todos
skill: reminder
action: due
- id: compose
skill: daily-briefing
input:
weather: "{{get_weather.output}}"
todos: "{{get_todos.output}}"
- id: deliver
action: send
channel: telegram
content: "{{compose.output}}"
Only run trusted workflow files. The engine executes commands from the JSON
workflow definition via shell=True. Never run workflow files from untrusted
sources (downloads, user uploads, model-generated content) without manual review.
Treat workflow JSON files with the same caution as shell scripts.
{{step_id.output}} references previous step resultswhen: "{{get_weather.temp}} < 5"on_error: skip | abort | retry(3)parallel: [step_a, step_b]name: research-pipeline
steps:
- {id: search, skill: web-search, input: {query: "{{topic}}"}}
- {id: extract, skill: web-extract, input: {urls: "{{search.top_urls}}"}}
- {id: report, skill: deep-research, input: {content: "{{extract.output}}"}}
name: morning-routine
trigger: cron "0 8 * * *"
steps:
- {id: weather, skill: weather, input: {location: "Beijing"}}
- {id: briefing, skill: daily-briefing}
- {id: send, action: send, channel: auto, content: "{{briefing.output}}"}
python3 scripts/workflow_engine.py run workflow.json # run a workflow from JSON file
python3 scripts/workflow_engine.py inline "echo hello" "echo done" # chain commands inline
python3 scripts/workflow_engine.py template --output my-workflow.json # generate a template
Workflow JSON format:
{
"name": "my-workflow",
"stages": [
{"name": "build", "mode": "sequential", "steps": [{"command": "echo build"}]},
{"name": "test", "mode": "parallel", "steps": [{"command": "echo t1"}, {"command": "echo t2"}]}
]
}
| Type | Example |
|---|---|
| Cron | cron "0 8 * * *" |
| Keyword | keyword "生成报告" |
| Manual | manual |
| Event | event "new_message" |
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