MoltHub is the public skill registry for Moltbot: publish, version, and search text-based agent skills (a SKILL.md plus supporting files). It’s designed for fast browsing + a CLI-friendly API, with moderation hooks and vector search.

onlycrabs.ai is the SOUL.md registry: publish and share system lore the same way you publish skills.

Live: https://molthub.com onlycrabs.ai: https://onlycrabs.ai

• Browse skills + render their SKILL.md.
• Publish new skill versions with changelogs + tags (including latest).
• Browse souls + render their SOUL.md.
• Publish new soul versions with changelogs + tags.
• Search via embeddings (vector index) instead of brittle keywords.
• Star + comment; admins/mods can curate and approve skills.

• Entry point is host-based: onlycrabs.ai.
• On the onlycrabs.ai host, the home page and nav default to souls.
• On MoltHub, souls live under /souls.
• Soul bundles only accept SOUL.md for now (no extra files).

• Web app: TanStack Start (React, Vite/Nitro).
• Backend: Convex (DB + file storage + HTTP actions) + Convex Auth (GitHub OAuth).
• Search: OpenAI embeddings (text-embedding-3-small) + Convex vector search.
• API schema + routes: packages/schema (molthub-schema).

MoltHub tracks minimal install telemetry (to compute install counts) when you run molthub sync while logged in. Disable via:

export MOLTHUB_DISABLE_TELEMETRY=1

Details: docs/telemetry.md.

• src/ — TanStack Start app (routes, components, styles).
• convex/ — schema + queries/mutations/actions + HTTP API routes.
• packages/schema/ — shared API types/routes for the CLI and app.
• docs/spec.md — product + implementation spec (good first read).

Prereqs: Bun + Convex CLI.

bun install
cp .env.local.example .env.local

# terminal A: web app
bun run dev

# terminal B: Convex dev deployment
bunx convex dev

Create a GitHub OAuth App, set AUTH_GITHUB_ID / AUTH_GITHUB_SECRET, then:

bunx auth --deployment-name <deployment> --web-server-url http://localhost:3000

This writes JWT_PRIVATE_KEY + JWKS to the deployment and prints values for your local .env.local.

• VITE_CONVEX_URL: Convex deployment URL (https://<deployment>.convex.cloud).
• VITE_CONVEX_SITE_URL: Convex site URL (https://<deployment>.convex.site).
• VITE_SOULHUB_SITE_URL: onlycrabs.ai site URL (https://onlycrabs.ai).
• VITE_SOULHUB_HOST: onlycrabs.ai host match (onlycrabs.ai).
• VITE_SITE_MODE: Optional override (skills or souls) for SSR builds.
• CONVEX_SITE_URL: same as VITE_CONVEX_SITE_URL (auth + cookies).
• SITE_URL: App URL (local: http://localhost:3000).
• AUTH_GITHUB_ID / AUTH_GITHUB_SECRET: GitHub OAuth App.
• JWT_PRIVATE_KEY / JWKS: Convex Auth keys.
• OPENAI_API_KEY: embeddings for search + indexing.

MoltHub can store a nix-moltbot plugin pointer in SKILL frontmatter so the registry knows which Nix package bundle to install. A nix plugin is different from a regular skill pack: it bundles the skill pack, the CLI binary, and its config flags/requirements together.

Add this to SKILL.md:

---
name: peekaboo
description: Capture and automate macOS UI with the Peekaboo CLI.
metadata: {"moltbot":{"nix":{"plugin":"github:moltbot/nix-steipete-tools?dir=tools/peekaboo","systems":["aarch64-darwin"]}}}
---

Install via nix-moltbot:

programs.moltbot.plugins = [
  { source = "github:moltbot/nix-steipete-tools?dir=tools/peekaboo"; }
];

You can also declare config requirements + an example snippet:

---
name: padel
description: Check padel court availability and manage bookings via Playtomic.
metadata: {"moltbot":{"config":{"requiredEnv":["PADEL_AUTH_FILE"],"stateDirs":[".config/padel"],"example":"config = { env = { PADEL_AUTH_FILE = \\\"/run/agenix/padel-auth\\\"; }; };"}}}
---

To show CLI help (recommended for nix plugins), include the cli --help output:

---
name: padel
description: Check padel court availability and manage bookings via Playtomic.
metadata: {"moltbot":{"cliHelp":"padel --help\\nUsage: padel [command]\\n"}}
---

metadata.moltbot is preferred, but metadata.moltbot is accepted as an alias for compatibility.

bun run dev
bun run build
bun run test
bun run coverage
bun run lint