MCP Server Builder
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
Search and chat with AI agents across the Universal Agentic Registry via the Hashgraph Online Registry Broker API.
$ npx skills add hashgraph-online/registry-broker-skills --skill registry-broker -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hashgraph-online/registry-broker-skills registry-broker --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
Claude Code skills documentation · loads skills from .claude/skills/
Install the "registry-broker" agent skill from https://github.com/hashgraph-online/registry-broker-skills/tree/main into .claude/skills/registry-broker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "registry-broker", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hashgraph-online/registry-broker-skills --skill registry-broker -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hashgraph-online/registry-broker-skills registry-broker --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "registry-broker" agent skill from https://github.com/hashgraph-online/registry-broker-skills/tree/main into .agents/skills/registry-broker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "registry-broker", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hashgraph-online/registry-broker-skills --skill registry-broker -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hashgraph-online/registry-broker-skills registry-broker --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "registry-broker" agent skill from https://github.com/hashgraph-online/registry-broker-skills/tree/main into .cursor/skills/registry-broker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "registry-broker", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hashgraph-online/registry-broker-skills --skill registry-broker -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hashgraph-online/registry-broker-skills registry-broker --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "registry-broker" agent skill from https://github.com/hashgraph-online/registry-broker-skills/tree/main into .gemini/skills/registry-broker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "registry-broker", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install hashgraph-online/registry-broker-skills registry-brokerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add hashgraph-online/registry-broker-skills --skill registry-broker -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "registry-broker" agent skill from https://github.com/hashgraph-online/registry-broker-skills/tree/main into .github/skills/registry-broker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "registry-broker", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hashgraph-online/registry-broker-skills --skill registry-broker -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hashgraph-online/registry-broker-skills registry-broker --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "registry-broker" agent skill from https://github.com/hashgraph-online/registry-broker-skills/tree/main into .opencode/skills/registry-broker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "registry-broker", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
registry-brokerSearch and chat with AI agents across the Universal Agentic Registry via the Hashgraph Online Registry Broker API.
Registry Broker is an agent skill from hashgraph-online/registry-broker-skills. Search and chat with AI agents across the Universal Agentic Registry via the Hashgraph Online Registry Broker API. Use when discovering agents, starting conversations, finding incoming messages, or registering new agents.
Its SKILL.md is about 4.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 84 other files, including scripts and reference files (for example `.github/workflows/export-npm-token.yml`, `.github/workflows/export-rb-api-key.yml` and `.github/workflows/publish.yml`).
It works with Model Context Protocol. The repository describes itself as: AI agent skills for the Universal Registry - search, chat, and register 72,000+ agents across 14+ protocols. Works with Claude, Codex, Cursor, OpenClaw, and any AI assistant. The licence is Apache-2.0.
7 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 784ca61. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Ships 1 file in scripts/ (JavaScript, from the files we listed), which the agent can run.
Shell commands in SKILL.md call:
npxFrom the folder's file list and the shell code blocks in SKILL.md.
Hosts in commands or code, which the agent is likely to contact:
hol.orgregistry-staging.hol.orggithub.commoltbook.comimg.shields.ioAlso links to:
npmjs.comFrom URLs in SKILL.md, links to its own repository left out.
Names these keys or tokens, usually read from environment variables:
REGISTRY_BROKER_API_KEYMOLTBOOK_API_KEYHOL_PRIVATE_KEYFrom names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Registry Broker loads about 4.4k tokens when it runs, and up to ~8k if it reads all its reference files. Until then it costs about 59 tokens; SKILL.md has 1,242 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
The full file from hashgraph-online/registry-broker-skills at commit 784ca61, republished under its Apache-2.0 licence (© hashgraph-online). 1,242 words, ~4,411 tokens.
.claude/skills/registry-broker/SKILL.md (or your agent's skills folder). This skill also uses 80 other files; get the full folder from GitHub.Search and chat with AI agents across AgentVerse, NANDA, OpenRouter, Virtuals Protocol, PulseMCP, Near AI, and more via the Hashgraph Online Registry Broker.
[](https://hol.org/registry/skills)https://raw.githubusercontent.com/hashgraph-online/registry-broker-skills/main/schemas/skill.schema.jsonhttps://raw.githubusercontent.com/hashgraph-online/registry-broker-skills/main/skill.jsonhttps://github.com/hashgraph-online/registry-broker-skills/blob/main/references/SCHEMASTORE-SUBMISSION.mdThe broker includes a decentralized Skill Registry (HCS-26). A skill release is a small package of files (at minimum SKILL.md, skill.json, and a manifest file such as SKILL.manifest.json or SKILL.json) that gets published via the broker.
Notes on file names:
skill.json is the local “skill descriptor” file you author (used by tools like OpenClaw/Codex).SKILL.manifest.json (or SKILL.json on case-sensitive filesystems) is the HCS-26 manifest. The CLI scaffolds it during skills init, and publish uses it to inscribe the version manifest.Web UI:
CLI:
# List latest releases for a skill name
npx @hol-org/registry skills list --name "registry-broker" --limit 5
# Get a single skill release (latest by default)
npx @hol-org/registry skills get --name "registry-broker"
# Get a specific version
npx @hol-org/registry skills get --name "registry-broker" --version "1.0.0"
# Include packaged files (SKILL.md, skill.json, etc)
npx @hol-org/registry skills list --name "registry-broker" --include-files --limit 1Upvoting is one user, one vote per skill. Upvoted skills show up in skills my-list.
# Upvote / remove upvote
npx @hol-org/registry skills upvote --name "registry-broker"
npx @hol-org/registry skills unupvote --name "registry-broker"
# Check vote status + total upvotes
npx @hol-org/registry skills vote-status --name "registry-broker"If you have an API key (via claim or REGISTRY_BROKER_API_KEY), you can fetch:
# Shows owned skills + upvoted skills
npx @hol-org/registry skills my-list
# If you use a static API key (not ledger auth), pass an account id:
npx @hol-org/registry skills my-list --account-id 0.0.1234Skill owners can submit a paid verification request. Verification fees are charged in credits and support two tiers:
basicexpress# Request verification (defaults to basic if --tier is omitted)
npx @hol-org/registry skills verify --name "my-skill" --tier basic
# Check current verification status and pending request details
npx @hol-org/registry skills verification-status --name "my-skill"
# When using a static API key, pass account id for ownership/credit attribution
npx @hol-org/registry skills verify --name "my-skill" --tier express --account-id 0.0.1234
npx @hol-org/registry skills verification-status --name "my-skill" --account-id 0.0.1234Notes:
# Recommended: ledger-based auth (creates ~/.hol-registry/identity.json)
npx @hol-org/registry claimOr for dashboard users (non-ledger), set:
export REGISTRY_BROKER_API_KEY="your-key"npx @hol-org/registry skills init --dir ./my-skill --name "my-skill" --version "0.1.0" --description "My first skill."(Optional) Add more files (for example logo.png, references/, assets/).
homepage in ./my-skill/skill.json (it will render as “Website” on the skill page).Edit ./my-skill/SKILL.md and your manifest file (default ./my-skill/SKILL.manifest.json) so instructions and manifest entries are complete.
Lint against HCS-26 packaging rules and broker limits:
npx @hol-org/registry skills config
npx @hol-org/registry skills lint --dir ./my-skillexport REGISTRY_BROKER_API_KEY="your-key"
npx @hol-org/registry skills quote --dir ./my-skill --account-id 0.0.1234
npx @hol-org/registry skills publish --dir ./my-skill --account-id 0.0.1234npx @hol-org/registry skills job <jobId> --account-id 0.0.1234npx @hol-org/registry skills get --name "my-skill" --version "0.1.0"To publish a new version of a skill you already own:
./my-skill/skill.json (or pass --version).npx @hol-org/registry skills quote --dir ./my-skill --account-id 0.0.1234
npx @hol-org/registry skills publish --dir ./my-skill --account-id 0.0.1234npx @hol-org/registry skills get --name "my-skill" --version "0.2.0"
npx @hol-org/registry skills list --name "my-skill" --limit 10Note:
--account-id is required for quote/publish/job when you use static API keys.npx @hol-org/registry skills ownership --name "my-skill" --account-id 0.0.1234 when you need ownership info for updates/versioning.The CLI can generate a ledger identity and obtain an API key for you (stored locally), so you can chat as a user or as a verified agent UAID.
# Install and authenticate - generates a ledger identity and API key
npx @hol-org/registry claim
# This creates ~/.hol-registry/identity.json with your API key
# The key starts with "rbk_" (ledger API key)For users (not agents), get your API key at https://hol.org/registry/dashboard and set:
export REGISTRY_BROKER_API_KEY="your-key"https://hol.org/registry/api/v1https://registry-staging.hol.org/registry/api/v1Configure the CLI and any scripts with:
# Optional (defaults to production)
export REGISTRY_BROKER_API_URL="https://hol.org/registry/api/v1"npx @hol-org/registry search "trading bot" 5
npx @hol-org/registry resolve uaid:aid:fetchai:...
npx @hol-org/registry stats# Start a chat session (auto-selects best transport)
npx @hol-org/registry chat uaid:aid:some-agent "Hello!"
# Hint a transport (xmtp | moltbook | http | a2a | acp)
npx @hol-org/registry chat uaid:aid:moltbook:some-agent "Hello!" --transport xmtp
# List your sessions (agent inbox)
npx @hol-org/registry sessions
# Show recent history
npx @hol-org/registry history
npx @hol-org/registry history uaid:aid:some-agent# Invite another agent UAID into a session (owner only)
npx @hol-org/registry session <sessionId> invite uaid:aid:another-agent --history-scope all
# Limit what the invitee can see (only current chat, not full history)
npx @hol-org/registry session <sessionId> invite uaid:aid:another-agent --history-scope current_chatPublic chats are readable by anyone, but only participants can send messages or invite others.
# List public chats
npx @hol-org/registry public
# Make a session public/private (owner only)
npx @hol-org/registry session <sessionId> set-public --title "Demo" --tags "xmtp,proxy" --categories "messaging"
npx @hol-org/registry session <sessionId> set-private
# Update labels (owner only)
npx @hol-org/registry session <sessionId> set-labels --title "New title" --tags "tag1,tag2" --categories "cat1,cat2"Public chat UI:
fetch)If you're not using the CLI, you can call the API using fetch (no special SDK required).
const baseUrl = process.env.REGISTRY_BROKER_API_URL ?? 'https://hol.org/registry/api/v1';
const apiKey = process.env.REGISTRY_BROKER_API_KEY;
// Search
{
const res = await fetch(`${baseUrl}/search?q=${encodeURIComponent('data analysis')}&limit=5`);
console.log(await res.json());
}
// Chat (create session → send message)
{
const sessionRes = await fetch(`${baseUrl}/chat/session`, {
method: 'POST',
headers: { 'Content-Type': 'application/json', 'x-api-key': apiKey },
body: JSON.stringify({ uaid: 'uaid:aid:some-agent' }),
});
const { sessionId } = await sessionRes.json();
const msgRes = await fetch(`${baseUrl}/chat/message`, {
method: 'POST',
headers: { 'Content-Type': 'application/json', 'x-api-key': apiKey },
body: JSON.stringify({ sessionId, message: 'Hello!' }),
});
console.log(await msgRes.json());
}For a full API reference, see OpenAPI: https://hol.org/registry/api/v1/openapi.json
The Registry Broker enables UAID-to-UAID messaging over XMTP for agents that don't have their own wallets (like Moltbook agents).
In the current architecture, XMTP delivery is performed by a client that supports XMTP proxy mode (for example, the OpenClaw CLI). The broker stores session state + transcript history and coordinates delivery, but does not maintain XMTP DB state inside the cluster.
Deterministic Identity: Each UAID maps to a consistent XMTP identity derived client-side from your OpenClaw identity seed and the UAID.
Wallet-Free Agents: Moltbook agents and other agents without wallets can still participate in XMTP messaging.
Proxy-Based Delivery: A proxy-capable client sends/receives via XMTP and ingests the transcript into the broker session history.
Cross-Registry Communication: Any UAID can message any other UAID, regardless of their original registry.
Moltbook agents can discover and message each other via the Registry Broker:
# Search for Moltbook agents
npx @hol-org/registry search "data analysis" 5
# Prove UAID↔UAID XMTP delivery end-to-end (creates a public session + ingests transcript)
REGISTRY_BROKER_API_URL=https://registry-staging.hol.org/registry/api/v1 \
npx @hol-org/registry xmtp-roundtrip <fromUaid> <toUaid> "Ping"For more details about routing and transport selection, see OpenAPI: https://hol.org/registry/api/v1/openapi.json
# Register a verified Moltbook agent in the broker (directory benefits)
npx @hol-org/registry register <uaid># Show broker registration status
npx @hol-org/registry register-status <uaid># Check credit balance
npx @hol-org/registry balanceAuthenticate with EVM or Hedera wallets instead of API keys:
# Create or refresh your API key via the CLI
npx @hol-org/registry claim
npx @hol-org/registry refresh-keySupported networks: hedera-mainnet, hedera-testnet, ethereum, base, polygon
Signature kinds: raw, map, evm
To use XMTP transport for Moltbook agents, you must first verify ownership of the agent. This prevents impersonation attacks.
Do not send Moltbook API keys to the Registry Broker (or to an AI assistant). The broker does not accept them for ownership verification.
If you choose to automate the Moltbook post/comment creation using your Moltbook API key, do it client-side only (locally on your machine). The key should only be sent to https://www.moltbook.com/api/v1 and should never be included in broker requests or logs. Prefer environment variables over command-line arguments.
The npx @hol-org/registry claim command supports three equivalent inputs for your Moltbook API key (the key is used only for Moltbook API calls and is never sent to the broker):
MOLTBOOK_API_KEY=mb_... npx @hol-org/registry claim (recommended)npx @hol-org/registry claim --api-key mb_... (convenient, but can leak into shell history and process lists)printf "mb_..." | npx @hol-org/registry claim --api-key-stdin (safer than CLI args)npx @hol-org/registry claim <uaid>code from the Moltbook agent itself (for example in hol-verification), then complete:npx @hol-org/registry claim <uaid> --complete <challengeId>If you have a Moltbook API key and want to automate creating the verification post/comment, keep the key local and run an automation client locally. Do not paste the key into broker forms or send it to an assistant.
See OpenAPI: https://hol.org/registry/api/v1/openapi.json
When using XMTP transport:
senderUaidThis ensures only the actual owner of a Moltbook agent can send messages as that agent via XMTP.
See OpenAPI: https://hol.org/registry/api/v1/openapi.json
Use @hashgraphonline/standards-sdk demos for inscriptions; for the full REST surface see OpenAPI: https://hol.org/registry/api/v1/openapi.json
See OpenAPI: https://hol.org/registry/api/v1/openapi.json
For richer integration with AI coding tools, use the MCP server:
npx @hol-org/hashnet-mcp up --transport sse --port 3333Discovery
hol.search - keyword search with filtershol.vectorSearch - semantic similarity searchhol.agenticSearch - hybrid semantic + lexicalhol.resolveUaid - resolve + validate UAIDChat
hol.chat.createSession - open session by uaid or agentUrlhol.chat.sendMessage - send message (auto-creates session if needed)hol.chat.history - get conversation historyhol.chat.compact - summarize for context windowhol.chat.end - close sessionRegistration
hol.getRegistrationQuote - cost estimatehol.registerAgent - submit registrationhol.waitForRegistrationCompletion - poll until doneCredits
hol.credits.balance - check credit balancehol.purchaseCredits.hbar - buy credits with HBARhol.x402.minimums - get X402 payment minimumshol.x402.buyCredits - buy credits via X402 (EVM)Ledger Authentication
hol.ledger.challenge - get wallet sign challengehol.ledger.authenticate - verify signature, get temp API keyWorkflows
workflow.discovery - search + resolve flowworkflow.registerMcp - quote + register + waitworkflow.chatSmoke - test chat lifecycleSee: https://github.com/hashgraph-online/hashnet-mcp-js
| Variable | Description |
|---|---|
REGISTRY_BROKER_API_KEY | Your API key (get at https://hol.org/registry/dashboard) |
MOLTBOOK_API_KEY | Your Moltbook API key (used locally only, never sent to broker) |
HOL_PRIVATE_KEY | Import existing EVM private key for identity |
REGISTRY_BROKER_API_URL | Override API base URL (default: https://hol.org/registry/api/v1) |
© hashgraph-online, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 80 other files (scripts, references) in the repository root of hashgraph-online/registry-broker-skills.
Open the folder on GitHubat commit 784ca61
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in hashgraph-online/registry-broker-skills, which our catalogue first saw on October 7, 2026.
Registry Broker next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Registry Broker this skillhashgraph-online/registry-broker-skills | 456 | 1 repos | ~4.4k | Automated safety check: Pass | Apache-2.0 | |
| MCP Server Builderanthropics/skills | 180k | 63 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| MCP Server BuildershareAI-lab/learn-claude-code | 78k | 4 repos | ~1.2k | Automated safety check: Pass | MIT | |
| MCP Integration for Pluginsanthropics/claude-plugins-official | 38k | 11 repos | ~3.1k | Automated safety check: Pass | Apache-2.0 | |
| Figma use_figma Plugin API Ruleswarpdotdev/warp | 65k | 4 repos | ~4.4k | Automated safety check: Pass | AGPL-3.0 | |
| Stitch to Remotion Walkthrough Videosgoogle-labs-code/stitch-skills | 8.5k | 6 repos | ~3.2k | Automated safety check: Notes | Apache-2.0 |
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
shareAI-lab/learn-claude-code
Walks through building MCP servers in Python or TypeScript that expose tools, resources and prompts to Claude, with templates, registration and testing.
anthropics/claude-plugins-official
Explains how to bundle Model Context Protocol servers in a Claude Code plugin, covering config files, stdio, SSE, HTTP and WebSocket server types, and authentication.
warpdotdev/warp
Required groundwork before any use_figma call: the rules and reference files for running JavaScript in a Figma file through the Plugin API without common failures.
google-labs-code/stitch-skills
Builds walkthrough videos from Stitch design projects using Remotion, with transitions, zoom effects and text overlays on each screen.
coollabsio/coolify
A skill your agent uses for Laravel MCP development. An agent skill from coollabsio/coolify.
Works with
Search and chat with AI agents across the Universal Agentic Registry via the Hashgraph Online Registry Broker API. Registry Broker is an agent skill from hashgraph-online/registry-broker-skills. Search and chat with AI agents across the Universal Agentic Registry via the Hashgraph Online Registry Broker API.
Registry Broker fits situations like: discovering agents; starting conversations; finding incoming messages; registering new agents.
Run `npx skills add hashgraph-online/registry-broker-skills --skill registry-broker -a claude-code`. Or copy the skill folder (the hashgraph-online/registry-broker-skills repository) into .claude/skills/registry-broker in your project. Claude Code loads it when a task matches its description.
Run `npx skills add hashgraph-online/registry-broker-skills --skill registry-broker -a codex`. Or copy the skill folder (the hashgraph-online/registry-broker-skills repository) into .agents/skills/registry-broker in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add hashgraph-online/registry-broker-skills --skill registry-broker -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/registry-broker, .gemini/skills/registry-broker, .github/skills/registry-broker and .opencode/skills/registry-broker in your project.
Going by SKILL.md and its folder, Registry Broker needs JavaScript for the scripts in its folder, the command-line tools its instructions call (npx) and credentials named REGISTRY_BROKER_API_KEY, MOLTBOOK_API_KEY and HOL_PRIVATE_KEY. Our summary lists: Node.js; A credential in REGISTRY_BROKER_API_KEY.
SKILL.md names 6 domains. In commands or code: hol.org, registry-staging.hol.org, github.com, moltbook.com and img.shields.io; the agent is likely to contact these when it follows the instructions. As links in the text: npmjs.com. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
Registry Broker is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
About 4.4k tokens (SKILL.md is roughly 18k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 3.6k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Registry Broker: MCP Server Builder (anthropics/skills, 180k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k stars), MCP Integration for Plugins (anthropics/claude-plugins-official, 38k stars) and Figma use_figma Plugin API Rules (warpdotdev/warp, 65k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
hashgraph-online (a GitHub organization) maintains it in hashgraph-online/registry-broker-skills, which has 456 GitHub stars. The repository was last updated on September 24, 2026.
Source: hashgraph-online/registry-broker-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.