Mmcp.market

handoff skill

by nexu-io·nexu-io/open-design·98k stars·Apache-2.0

Push the run's accepted artifact to a downstream collaboration surface (cli, other code agents, cloud, desktop) and stamp the artifact manifest with the export target.

A100/100content scan

Is the handoff skill safe?

Clean: nothing in its files matched our rules. We read 2 files in the folder on 2026-09-28.

No findings.

Install the handoff skill

A skill is a folder. Copy it into your agent's skills folder and the agent loads it when the task matches its description. 

git clone --depth 1 https://github.com/nexu-io/open-design.git /tmp/open-design
mkdir -p ~/.claude/skills
cp -r /tmp/open-design/plugins/_official/atoms/handoff ~/.claude/skills/handoff
available in every project

In the Claude apps, zip the folder and upload it from the Skills settings. The folder on GitHub

The instructions your agent would load

SKILL.md as published, without the frontmatter. Read it on GitHub

Handoff

Spec §11.5.1 / §21.5: an OD run isn't done when the artifact exists — it's done when the artifact reaches the surface the user will keep iterating on. This atom is the "push it somewhere" stage. It's the natural counterpart to diff-review.

Inputs

decision: 'accept' | 'partial').

  • The accepted artifact set (after diff-review resolved with

ArtifactManifest.exportTargets[].surface).

  • The export target (one of the surface enum values from

Surfaces

Output

Updates ArtifactManifest.exportTargets[] with a row per push, appending — never replacing — so the artifact's distribution history stays append-only.

Convergence

The atom completes when at least one exportTargets[] entry matches the user's intent or the user explicitly skipped via the confirmation GenUI surface.

Anti-patterns the prompt fragment forbids

intent list.

  • Pushing the artifact to a surface that wasn't on the user's

trail is additive).

  • Mutating sourcePluginSnapshotId (it's immutable; the export

file — round-trip is the whole point of the figma-migration scenario.

  • Treating figma as a no-op when the user's source was a Figma

Status

Implemented by the daemon runner in apps/daemon/src/plugins/atoms/handoff.ts. It records provenance, handoffKind, and export targets, then persists the updated artifact manifest.

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