skill-040

skill-040 is a skill for Claude Code, Codex from legendtkl/agentic-skill-router. It costs 30 tokens per session (224 once invoked), scanned A, original, MIT.

A guide for designing React 18 interfaces that keep responding while large or slow updates are rendered. React is a JavaScript interface library; Suspense and useTransition are features for coordinating delayed work.

In plain words
What is it for?
Use it to design and test transitions, Suspense boundaries, selective hydration, and responsiveness under heavy workloads.
Why use it?
It helps separate urgent input from non-urgent updates and reveal parts of a page in stages instead of freezing the interface.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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/legendtkl/agentic-skill-router/skill-040
Any agent
npx skills add legendtkl/agentic-skill-router --skill skill-040
Clone the repo
git clone --depth 1 https://github.com/legendtkl/agentic-skill-router

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 skill-040

README.md
[![agentmods](https://agentmods.dev/badge/skills/legendtkl/agentic-skill-router/skill-040.svg)](https://agentmods.dev/skills/legendtkl/agentic-skill-router/skill-040)
Your own site
<a href="https://agentmods.dev/skills/legendtkl/agentic-skill-router/skill-040"><img src="https://agentmods.dev/badge/skills/legendtkl/agentic-skill-router/skill-040.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 224 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 5.1 $0.00030 $0.00224
Opus 5 $0.00015 $0.00112
Sonnet 5 $0.00006 $0.00045
Haiku 4.5 $0.00003 $0.00022

Measured 5d ago against content hash 672491086c8c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

skill-040 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 5d ago.

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.

experiments/dci-compare/skillrouter-skills/skill-040/SKILL.md · 28 lines

What it actually says

Concurrent Rendering Orchestration (React 18)

Summary

Design and validate complex concurrent rendering workflows using useTransition, Suspense, and selective hydration to preserve responsiveness under heavy workloads.

Key Capabilities

  • Model UI updates as urgent vs non-urgent and coordinate transitions across nested trees.
  • Compose Suspense boundaries to avoid cascading stalls and over-suspension.
  • Implement selective hydration strategies that prioritize user-critical regions.

PhD-Level Challenges

  • Prove liveness properties for a UI state machine under partial rendering.
  • Construct a minimal cut set of Suspense boundaries for optimal TTI.
  • Derive empirical thresholds where useTransition improves tail latency.

Acceptance Criteria

  • Demonstrate a UI with nested Suspense boundaries and staged reveals.
  • Show consistent input responsiveness during large list updates.
  • Provide a benchmark report before/after applying transitions.
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. 5d ago First seen · 28 lines · 30 tokens per session scan A 672491086c8c

Subscribe to this mod's changes

skill-040 is a skill published in the GitHub repository legendtkl/agentic-skill-router (5 stars, last pushed 3mo ago), licensed MIT. It adds 30 tokens to every session and 224 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 2026-08-31.

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