# A2A Artifact Handoff

> Compiles source-agent outputs into validated, receiver-ready handoff packages.

- name: io.github.imagiever-ar/a2a-artifact-handoff
- version: 0.6.0
- connection class: unknown (unknown)
- trust: 45/100 flags: no-repository, unreachable
- quality: 79/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.imagiever-ar%2Fa2a-artifact-handoff
- tools: https://api.protogrid.dev/v1/servers/io.github.imagiever-ar%2Fa2a-artifact-handoff/tools

**Not classified yet.** The remote endpoints have not been probed successfully, or the listing has nothing to connect to.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "a2a-artifact-handoff": {
      "type": "http",
      "url": "https://a2a-artifact-handoff.onrender.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 4
- freshness: 85
- provenance: 35
- drivers: -unreachable(3 failures) ~updated-75d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 79/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: inspect_handoff (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); prepare_artifact (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); compile_handoff (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)
- pass `tools.token_cost`: about 1,593 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 3, about 1,593 tokens to load them all
- tool set hash: 845d0046628d3118d056c83051ed6154
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.imagiever-ar/a2a-artifact-handoff.svg)](https://protogrid.dev/servers/io.github.imagiever-ar/a2a-artifact-handoff)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://a2a-artifact-handoff.onrender.com/mcp (streamable-http, auth none, reachable false, uptime30d 0.85294116)

## Packages

_none_

## Tools (3)

- `compile_handoff`: Compile source-agent outputs into a receiver-ready handoff package.

    The input schema declares the exact source-output, receiver-contract, and
    handoff-context fields. The tool selects and validates required deliverables
    and returns either a portable package or actionable unmet requirements.
    
- `inspect_handoff`: Inspect a handoff package and return an acceptance decision.

    The tool recalculates deliverable hashes, checks expiry and contract
    satisfaction, and returns the receiving agent's next action.
    
- `prepare_artifact`: Prepare content for transfer to another agent or a human reviewer.

    `target_modes` accepts either a JSON list or an actual list of MIME types.
    The result includes expiring artifact URLs, SHA-256 hashes, a manifest,
    and a downloadable ZIP package.