| name | async-render-example |
| description | Example skill — demonstrates async execution affinity: long-running tools surface as deferredHint=true in MCP tools/list. Use as a reference when writing domain skills with render or simulation tools. Not intended for production use. |
| license | MIT |
| compatibility | Python 3.7+ |
| metadata | {"dcc-mcp":{"dcc":"python","version":"1.0.0","layer":"example","search-hint":"async tool, long-running, deferred hint, timeout hint, render async, authoring reference","tags":"example, async, render, deferred","tools":"tools.yaml"}} |
Async Render Example (issue #317)
This skill demonstrates the execution and timeout_hint_secs fields added
for issue #317. Tools are declared with either execution: sync (default)
or execution: async; the MCP server derives the deferredHint annotation
from this value and surfaces timeout_hint_secs under
_meta.dcc.timeoutHintSecs on the tool definition (never inside
annotations).
Behaviour
render_frames → execution: async + timeout_hint_secs: 600
→ tools/list entry gets "annotations": { "deferredHint": true, ... }
and "_meta": { "dcc": { "timeoutHintSecs": 600 } }.quick_status → no execution field → default Sync
→ "annotations": { "deferredHint": false, ... } and no _meta.
Script convention
Each script reads JSON parameters from stdin and writes a JSON result to
stdout — the standard dcc-mcp-core skill script contract.
