async-render-example

async-render-example is a skill for Claude Code, Codex from dcc-mcp/dcc-mcp-core. It costs 45 tokens per session (373 once invoked), scanned A, original, MIT.

An example skill showing how a long-running render or simulation can run asynchronously while quick status checks run immediately.

In plain words
What is it for?
Use it as a reference when designing skills with slow rendering or simulation commands, including timeout hints and JSON input/output.
Why use it?
It demonstrates how tools can signal that a task may take time, so users and integrations know when to wait for a result.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/dcc-mcp/dcc-mcp-core/async-render-example
Any agent
npx skills add dcc-mcp/dcc-mcp-core --skill async-render-example
Clone the repo
git clone --depth 1 https://github.com/dcc-mcp/dcc-mcp-core

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for async-render-example

README.md
[![agentmods](https://agentmods.dev/badge/skills/dcc-mcp/dcc-mcp-core/async-render-example.svg)](https://agentmods.dev/skills/dcc-mcp/dcc-mcp-core/async-render-example)
Your own site
<a href="https://agentmods.dev/skills/dcc-mcp/dcc-mcp-core/async-render-example"><img src="https://agentmods.dev/badge/skills/dcc-mcp/dcc-mcp-core/async-render-example.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 373 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00045 $0.00373
Opus 5 $0.00023 $0.00187
Sonnet 5 $0.00009 $0.00075
Haiku 4.5 $0.00005 $0.00037

Measured 4d ago against content hash 562decfd3d9c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

async-render-example scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/quick_status.py, scripts/render_frames.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

examples/skills/async-render-example/SKILL.md · 41 lines

What it actually says

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_framesexecution: async + timeout_hint_secs: 600tools/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.

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 41 lines · 45 tokens per session scan A 562decfd3d9c

Subscribe to this mod's changes

async-render-example is a skill published in the GitHub repository dcc-mcp/dcc-mcp-core (42 stars, last pushed today), licensed MIT. It adds 45 tokens to every session and 373 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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