Coral Extend

Coral Extend is an AI Engineering skill for Claude Code, published by Human-Agent-Society in CORAL.

913 stars119 forkson Human-Agent-Society/CORALAdded 2026/08/22+2% in starsRepository updated 2026/08/21

agent-frameworkagent-orchestrationagentic-aiai-agentsalpha-evolveautonomous-agentsautoresearchclaude-codecode-generationcodexcoding-agentevolutionary-algorithmlarge-language-modelsllm-agentsmulti-agentopen-sourceopencodescientific-discoveryself-evolvingself-evolving-agents

Install in seconds

Install Coral Extend

Copy Coral Extend into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/Human-Agent-Society/CORAL/tree/main/.claude/skills/coral-extend ~/.claude/skills/coral-extend

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/Human-Agent-Society/CORAL.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: .claude/skills/coral-extend/SKILL.md in Human-Agent-Society/CORAL
Installs to: ~/.claude/skills/coral-extend
Collection: One of 12 skills cataloged from this repository
Category: AI Engineering — 2451 skills

What Coral Extend does

Coral Extend adds new components to the CORAL framework itself, such as agent runtimes, CLI commands, hooks, config fields, bundled templates, or grader infrastructure. Use it when changing the package internals, not for per-task graders or debugging existing code.

Coral Extend is cataloged under AI Engineering on DirSkills. Coral Extend comes from a repository tagged agent-framework, agent-orchestration, agentic-ai, ai-agents and alpha-evolve.

Documentation

README

Excerpt

Extending the CORAL framework

For day-to-day debug / reproduce loops see the sibling coral-debug skill. For creating a new examples/<task>/ (seed + task.yaml + grader package) see coral-new-task. This skill covers adding new components to the CORAL package itself.

Extending the grader infrastructure

If you're writing a grader for a specific task, use coral-new-task. This section is only for changes to the grader framework under coral/grader/:

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Coral Extend

What else does Human-Agent-Society publish alongside Coral Extend?
Coral Extend is one of 12 skills that DirSkills catalogs from Human-Agent-Society/CORAL, the repository it ships in. Its siblings there include CORAL Quickstart, Coral Debug and Coral New Task. Each one is a separate skill with its own page in this directory, installs the same way Coral Extend does, and is maintained by Human-Agent-Society in that same repository. The rest of the collection is listed on the Human-Agent-Society/CORAL page.
How does Coral Extend compare to other AI Engineering skills?
Coral Extend ranks #1480 by stars among the 2451 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Coral Extend against them. Open each page to compare what they document and how they install.