How do I install the React Foundation skill?

Run npx skillmds@latest add ryan-brosas/react-foundation in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is React Foundation safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with React Foundation?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is React Foundation free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published React Foundation?

ryan-brosas (@ryan-brosas) published this skill. Their other Agent Skills are listed on their SkillMD profile.

React Foundation by ryan-brosas — Agent Skill

Name: React Foundation
Author: ryan-brosas

React Foundation

Use when porting cooperative time-slicing schedulers, priority-ordered task queues, delayed-task timers, macrotask yield/error-resume loops, or lane/priority-bitmap scheduling kernels modeled on React's Scheduler (`packages/scheduler`) and the react-reconciler root-scheduling plane (`ReactFiberRootScheduler`, `ReactFiberWorkLoop` render entry, `ReactFiberLane`). Source code and direct tests are ground truth; references carry decisive excerpts and graph retrieval.

ryan-brosas e2e8562 16 files · 64.2 KB Updated Sep 17, 2026

File contents

React: Fiber scheduler foundation

Foundation contract

This is a cold, source-specific foundation, not an operational procedure. It is historical, revision-pinned evidence rather than timeless guidance. Current project source, tests, requirements, and runtime behavior outrank this projection and decide what ships.

Provenance and revision

Source record: react; portable upstream identity, license, coverage caveats, and retrieval history are preserved in the index.
Recorded revision: main@055705ca01766d2a4379261b05e7990a849bdedc.
Full provenance, coverage caveats, boundaries, and preserved evidence: references/index.md.

Topic map

Representative topics: Scheduler kernel (packages/scheduler); Heap ordering; Delayed tasks; Priorities & expiration; Continuations; Error resume; Host transport; Reconciler root-scheduling plane.
Scope and retrieval questions: references/index.md#use-this-for.
Complete capsule chooser: references/index.md#load-the-matching-source-dump.
Detailed grouped map: references/index.md#capsule-map.
Source limitations and portability boundaries: references/index.md#boundaries.

Retrieval

Open the index, choose one capsule matching the active question, and load only that capsule. Revalidate its cited source and revision before relying on it. Do not bulk-load the inventory, treat historical claims as current truth, or apply this foundation as a procedure.

Frequently asked questions