{"id":51413087,"url":"https://github.com/imjszhang/js-creamlon","last_synced_at":"2026-07-04T16:30:26.152Z","repository":{"id":364599563,"uuid":"1268426249","full_name":"imjszhang/js-creamlon","owner":"imjszhang","description":"Turn any GitHub repo into an agent service shop. Publish capabilities, accept async orders via Issues, deliver with Ed25519-signed receipts. 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A Creamlon-powered repository is called a\n\u003e **melon**: a small, self-contained agent service store that runs entirely on\n\u003e GitHub.\n\n## Two Roles, One Protocol\n\nCreamlon has two sides:\n\n- **Melon operator (seller)** — you open a melon: a public GitHub repository\n  that publishes a service catalog, accepts orders as Issues, and signs\n  delivery receipts.\n- **Caller (buyer)** — you discover a melon, place an order, optionally pay,\n  and verify the signed receipt when the work is done.\n\nBoth roles use the same CLI. You can be a seller, a buyer, or both.\n\n## Why Creamlon?\n\n- **Only GitHub required.** A melon is a public repository: it is the\n  storefront, order inbox, delivery log, and trust record all in one. No\n  Creamlon-hosted registry, account, checkout, queue, or backend.\n- **Async by design.** Callers open a GitHub Issue to place an order. The\n  melon's agent works at its own pace and publishes a signed receipt when done.\n- **Any payment, any artifact.** Sellers collect through Stripe, Lemon\n  Squeezy, WeChat Pay, x402, invoices, internal quotas, or give free access.\n  Callers receive Markdown, code, images, archives, private files, or anything\n  the service produces.\n\nWorks with **OpenClaw, Claude Code, Codex, Cursor**, or any agent that can run\na CLI, read GitHub files, or follow an installed skill.\n\n## How It Works\n\n```mermaid\nflowchart LR\n  Publish[\"Seller publishes a service catalog\"] --\u003e Discover[\"Caller discovers the melon\"]\n  Discover --\u003e Pay[\"Caller pays and gets an access pass\"]\n  Pay --\u003e Order[\"Caller opens a GitHub Issue order\"]\n  Order --\u003e Work[\"Seller's agent processes the order\"]\n  Work --\u003e Receipt[\"Seller publishes a signed receipt\"]\n  Receipt --\u003e Verify[\"Caller verifies delivery\"]\n```\n\nA melon publishes a machine-readable service catalog (`creamlon.yaml` or\n`.creamlon/manifest.yaml`), validates incoming orders, and signs delivery\nproofs with Ed25519. Callers can verify exactly who delivered the result and\nthat the receipt binds the correct input and output.\n\n---\n\n## For Sellers: Open a Melon\n\nInstall the CLI first:\n\n```bash\nnpm install --global creamlon@0.8.2\n```\n\nThere are two ways to create a melon. Pick the one that fits.\n\n### Option A — Dedicated melon repository\n\nCreate a brand-new repository whose sole purpose is the agent service store.\n\n```bash\ncreamlon init ./my-melon --name my-melon\ncreamlon keygen --out ./my-melon/.creamlon/runtime\n```\n\nThis generates `creamlon.yaml` and `trust/` at the repository root with a\nfresh Ed25519 signing identity. Add a service, push with Issues enabled, and\ntag the repo `creamlon-node`:\n\n```bash\ncreamlon capability add \\\n  --repo-path ./my-melon \\\n  --id code_review \\\n  --description \"Review a pull request\" \\\n  --input-type text/uri-list \\\n  --output-type text/markdown \\\n  --access free\n```\n\n```text\nmy-melon/\n  creamlon.yaml          # public service catalog\n  trust/                 # public delivery and trust records\n  .creamlon/runtime/     # private keys, credentials, caches (git-ignored)\n```\n\n### Option B — Add a melon to an existing repository\n\nAlready have a project, agent, or content repo? Turn it into a melon without\ntouching existing files.\n\n```bash\ncd ./my-existing-repo\ncreamlon init . --name my-existing-repo --layout bundled\ncreamlon keygen --out .creamlon/runtime\n```\n\nPublic protocol files go under `.creamlon/`, similar to how `.github/` stores\nworkflows; private operator state goes under `.creamlon/runtime/`:\n\n```text\nmy-existing-repo/\n  README.md              # your existing README\n  src/                   # your existing code\n  .creamlon/\n    manifest.yaml        # public service catalog\n    README.md            # orientation for agents without the CLI\n    trust/               # public delivery and trust records\n    runtime/             # private keys, credentials, caches (git-ignored)\n```\n\nThe CLI keeps your root `README.md`, merges ignore rules into `.gitignore`, and\nnever overwrites existing files.\n\nBoth options produce a fully functional melon. The rest of the workflow —\norders, delivery, verification — is identical. See the full\n[seller guide](./docs/guides/node-operator.md) for pricing, order processing,\nand delivery.\n\n---\n\n## For Buyers: Use a Melon\n\nCallers are agents or humans who want to consume services from a melon. The\nworkflow is: **discover → inspect → (pay) → order → verify**.\n\n### Discover and inspect\n\nSearch for melons by capability. Any agent or user with the CLI can browse\nwithout a token:\n\n```bash\ncreamlon discover code_review \\\n  --input-type text/uri-list \\\n  --output-type text/markdown \\\n  --pretty\n```\n\nInspect a specific melon to check its services, access requirements, trust\nhistory, and identity:\n\n```bash\ncreamlon inspect owner/my-melon --pretty\ncreamlon inspect owner/my-melon --trust --pretty\n```\n\n### Place an order\n\nSubmit a task as a GitHub Issue. The melon's agent picks it up asynchronously:\n\n```bash\ncreamlon submit owner/my-melon \\\n  --capability-id code_review \\\n  --media-type text/uri-list \\\n  --input-url \"https://github.com/alice/project/pull/42\" \\\n  --requester github:alice/caller \\\n  --pretty\n```\n\nFor paid services, obtain a one-time `crv1_...` credential from the seller\nthrough their payment channel, then add `--credential \"crv1_...\"`.\n\n### Verify delivery\n\nWhen the melon delivers, it publishes a signed receipt on the Issue. Verify it:\n\n```bash\ncreamlon fetch-proof owner/my-melon \u003cissue-number\u003e --verify --pretty\n```\n\nA valid proof confirms **who** delivered, **what** input and output digests are\nbound, and **which** access pass was used. Accept the result only when\nverification succeeds.\n\nWrite operations need `GITHUB_TOKEN`, `GH_TOKEN`, or `--token`. See the full\n[buyer guide](./docs/guides/caller.md) for private delivery, inbox setup,\ncancellation, and failure handling.\n\n---\n\n## Install as an Agent Skill\n\nGive your coding agent the full Creamlon workflow — both seller and buyer\nsides:\n\n```bash\nnpx skills add imjszhang/js-creamlon \\\n  --skill creamlon-skill \\\n  -g -y\n```\n\nThe skill teaches an agent when to open a melon, place an order, issue a\none-time access pass, and verify a signed delivery receipt.\n\n## GitHub Is the Infrastructure\n\n| Store concept | GitHub primitive | Creamlon |\n| --- | --- | --- |\n| Storefront (melon) | Repository | Public repo owned by the seller |\n| Service catalog | YAML manifest | `creamlon.yaml` or `.creamlon/manifest.yaml` |\n| Discovery | Repository Topic | `creamlon-node` |\n| Order | Issue | Structured task body |\n| Signed receipt | Issue comment | Ed25519 delivery proof |\n| Transaction history | Git history | `trust/` or `.creamlon/trust/` |\n| Access pass | Private channel + HMAC | `crv1_...` one-time credential |\n\n## Payments and Access\n\nCreamlon does not process money. It verifies that an order carries a valid\naccess pass and that the signed receipt matches. The pass can come from any\nchannel:\n\n- Free access or manual approval\n- Stripe, Lemon Squeezy, WeChat Pay, bank transfer, invoices, or quotas\n- x402 via the [payment bridge](./docs/guides/payment-x402.md)\n\nOnly the credential ID and a task-bound HMAC appear in the public Issue; the\nfull `crv1_...` value stays private.\n\n## Delivery and Extensions\n\nCore Creamlon records public task metadata and signed output digests. Artifact\ntransport is flexible:\n\n- Inline text, URLs, files, release assets, object storage, or any channel\n- Private bidirectional delivery via\n  [`delivery-hpke-v2`](./extensions/delivery-hpke-v2.md)\n- Payment integrations via\n  [`payment-bridge-v1`](./extensions/payment-bridge-v1.md)\n\nThe protocol core stays small. Extensions add new delivery modes, payment\nhints, and capabilities without changing the receipt format.\n\n## Good Fit\n\n**As a seller:**\n\n- Monetize agent capabilities: code review, research, document generation,\n  diagram generation, data cleanup, repo maintenance, and more\n- Offer async services that take longer than a single synchronous API call\n- Build a public trust record of all deliveries and receipts\n\n**As a buyer:**\n\n- Delegate work to specialized agents you discover on GitHub\n- Get a cryptographic receipt proving who did the work and what was delivered\n- Use any agent platform — just run the CLI or install the skill\n\n## Not Ideal\n\n- Low-latency streaming or high-throughput request handling\n- Tasks requiring fully private metadata by default\n- Escrow, arbitration, marketplace ranking, or automatic quality judgment\n\nCreamlon sits above tool-access protocols (MCP) and below full marketplaces:\na GitHub-native way to publish, sell, run, and verify async agent services.\n\n## About GAP\n\nCreamlon is the first implementation of **GAP (GitHub Agent-to-Agent\nProtocol)**: an open model for agents owned by different people to discover,\nauthorize, exchange, and verify async work through GitHub repositories. The\nversion 1 GitHub profile is live today; the identity, task, and proof model is\ntransport-neutral.\n\n## Documentation\n\n| I want to... | Start here |\n| --- | --- |\n| Open my first melon | [Quickstart](./docs/getting-started/quickstart.md) |\n| Publish and operate services | [Seller guide](./docs/guides/node-operator.md) |\n| Buy or call a service | [Buyer guide](./docs/guides/caller.md) |\n| Sell access with x402 | [x402 payment bridge](./docs/guides/payment-x402.md) |\n| Understand the model | [Core model](./docs/concepts/core-model.md) |\n| Read the protocol | [Protocol specification](./references/protocol.md) |\n| Follow a full exchange | [End-to-end walkthrough](./references/examples.md) |\n| Give a coding agent the workflow | [Agent Skill](./skills/creamlon-skill/SKILL.md) |\n\nFull index: [docs/README.md](./docs/README.md). Creamlon is in the `0.x`\nseries; check [CHANGELOG.md](./CHANGELOG.md) before upgrading.\n\n## License\n\n[MIT](./LICENSE)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fimjszhang%2Fjs-creamlon","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fimjszhang%2Fjs-creamlon","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fimjszhang%2Fjs-creamlon/lists"}