How do I install the UI Test A2a Handoff skill?

Run npx skillmds@latest add zengxiansheng007/ui-test-a2a-handoff in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is UI Test A2a Handoff safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with UI Test A2a Handoff?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is UI Test A2a Handoff free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published UI Test A2a Handoff?

Zengxiansheng007 (@zengxiansheng007) published this skill. Their other Agent Skills are listed on their SkillMD profile.

UI Test A2a Handoff by zengxiansheng007

Name: UI Test A2a Handoff
Author: Zengxiansheng007

UI Test A2a Handoff

Convert ui-test-packet into a stable A2A-compatible handoff_packet, prompt_packet, and artifact_refs bundle for Codex to keep refining Midscene requests. Use when the user asks for a UI-test交接协议层, prompt转换层, packet to packet mapping, failure_history preservation, retry_history preservation, or artifact reference hygiene. Do not use for real A2A transport, browser execution, or checkpoint runtime.

File contents

UI-Test A2A Handoff

Purpose

This skill only does one thing: transform a source ui-test-packet into a deterministic, reviewable, and replayable handoff bundle for the next Codex turn.

It preserves:

failure_history
retry_history
required_fix_points
artifact_refs
next_action

It does not:

run browser automation
send remote A2A messages
manage checkpoint runtime
rewrite large prompt prose into the packet
mutate business pages or credentials

Inputs

ui-test-packet JSON
previous handoff packet if present
optional Codex review notes
stable evidence references only

Outputs

handoff_packet
prompt_packet
artifact_refs

Operating rules

Preserve source lineage with source_packet_id and, when derived, parent_packet_id.
Never drop historical failures or retries when a new revision is created.
Do not embed long prompt prose in artifact_refs.
Keep outputs deterministic for the same normalized input.
If a field is unsafe, malformed, or ambiguous, reject it. Do not downgrade missing steps, non-read-only safety, empty forbidden_actions, or sensitive artifact_refs.
Treat handoff_packet as the contract for Codex continuation, not as a transport protocol.

Workflow

Validate the source packet shape.
Extract stable context and prior failures.
Build the minimal handoff contract.
Build the prompt packet with clear action, constraints, and expected verification.
Emit stable artifact references only; reject references containing credentials, cookies, tokens, passwords, Bearer values, or long prompt prose.
Produce a machine-readable summary for downstream review.

References

Schema
Mapping
Boundaries
Deterministic mapper

Validation

Run the bundled unit tests and confirm valid input maps deterministically while missing IDs and sensitive artifact references fail closed.

Safety

Do not execute transport, browsers, external messages, or business writes. Reject credentials, authentication state, private raw URLs, and unreviewed prompt payloads.

---name: ui-test-a2a-handoffdescription: Convert ui-test-packet into a stable A2A-compatible handoff_packet, prompt_packet, and artifact_refs bundle for Codex to keep refining Midscene requests. Use when the user asks for a UI-test交接协议层, prompt转换层, packet to packet mapping, failure_history preservation, retry_history preservation, or artifact reference hygiene. Do not use for real A2A transport, browser execution, or checkpoint runtime.---# UI-Test A2A Handoff## PurposeThis skill only does one thing: transform a source `ui-test-packet` into a deterministic, reviewable, and replayable handoff bundle for the next Codex turn.It preserves:- `failure_history`- `retry_history`- `required_fix_points`- `artifact_refs`- `next_action`It does **not**:- run browser automation- send remote A2A messages- manage checkpoint runtime- rewrite large prompt prose into the packet- mutate business pages or credentials## Inputs- `ui-test-packet` JSON- previous handoff packet if present- optional Codex review notes- stable evidence references only## Outputs- `handoff_packet`- `prompt_packet`- `artifact_refs`## Operating rules1. Preserve source lineage with `source_packet_id` and, when derived, `parent_packet_id`.2. Never drop historical failures or retries when a new revision is created.3. Do not embed long prompt prose in `artifact_refs`.4. Keep outputs deterministic for the same normalized input.5. If a field is unsafe, malformed, or ambiguous, reject it. Do not downgrade missing `steps`, non-read-only safety, empty `forbidden_actions`, or sensitive `artifact_refs`.6. Treat `handoff_packet` as the contract for Codex continuation, not as a transport protocol.## Workflow1. Validate the source packet shape.2. Extract stable context and prior failures.3. Build the minimal handoff contract.4. Build the prompt packet with clear action, constraints, and expected verification.5. Emit stable artifact references only; reject references containing credentials, cookies, tokens, passwords, `Bearer` values, or long prompt prose.6. Produce a machine-readable summary for downstream review.## References- [Schema](references/schema.md)- [Mapping](references/mapping.md)- [Boundaries](references/boundaries.md)- [Deterministic mapper](scripts/a2a_handoff.py)## ValidationRun the bundled unit tests and confirm valid input maps deterministically while missing IDs and sensitive artifact references fail closed.## SafetyDo not execute transport, browsers, external messages, or business writes. Reject credentials, authentication state, private raw URLs, and unreviewed prompt payloads.

Frequently asked questions