alibaba
Install Custom Engine
Pick your agent. Every command is ready to paste.
npx skills add alibaba/skill-up --skill custom-engineThe open skills CLI detects your agents (Claude Code, Cursor, Codex and 70+ more) and installs to the right folder. Add -g to install globally.
01
Install it
Run the command above, or upload the folder in Claude.
02
Ask naturally
Describe the task. Your agent loads custom-engine when the request matches its description.
03
Name it if needed
If it does not trigger, say “use the custom-engine skill”. In Codex, type $custom-engine.
Custom Engine e2e fixture
This directory is a minimal skill-up fixture that exercises the Custom
Engine local and http transports end-to-end. It is consumed by
e2e/custom_engine_test.go.
agent.sh + evals/eval.yaml cover the local transport: agent.sh is a
deterministic stand-in for a real custom agent that reads the SessionInput
JSON the framework writes to ${input_file} and emits a fixed SessionResult
on stdout. The case asserts that final_message flows from the agent's stdout
into the report.
evals/eval-http.yaml exercises the http transport against the same
hello.yaml case. TestPipeline_CustomEngine_HTTPTransport starts an
in-process httptest server, points ${CUSTOM_AGENT_ENDPOINT} at it, and
asserts the posted SessionInput reaches the server and the returned
SessionResult flows into the report — so the http stand-in agent lives in the
test rather than in agent.sh.
The eval-stateful-*.yaml fixtures exercise opt-in stateful conversations for
both transports, including session-ID propagation, per-turn post-conditions,
capture, substitution, and a final response that needs no continuation ID.
Tips for Custom Engine
- • Start a fresh session after installing so your agent picks up the new skill.
- • This skill ships scripts. Read them before the first run, and run it in a project without secrets first.
- • It is part of a pack with 22 skills. Install only the ones you need with --skill to keep triggers precise.
- • If two skills overlap, mention the one you want by name.
Questions about Custom Engine
What does the Custom Engine skill do?
This directory is a minimal skill-up fixture that exercises the Custom Engine local and http transports end-to-end. It is consumed by e2e/customenginetest.go.
How do I install Custom Engine?
Run "npx skills add alibaba/skill-up --skill custom-engine" in your project. The skills CLI installs it for Claude Code, Cursor, Codex and 70+ other agents. In Claude on the web, upload the skill folder as a ZIP under Customize > Skills.
Does Custom Engine work in Cursor and Codex?
Yes. Custom Engine uses the open SKILL.md format, so it works in Claude Code, Claude, Cursor, OpenAI Codex, Gemini CLI, GitHub Copilot and other agents that support agent skills.
Is Custom Engine free?
Custom Engine is open source on GitHub under the Apache-2.0 license. It is free to install; check the license before commercial use.
Who made Custom Engine?
Custom Engine is published by alibaba in the alibaba/skill-up repository, together with 21 other skills.
