async-render-example

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.