[sdk] TypeScript SDK — @engram/client mirroring the Python SDK

[Dipraise1]

Context

The Python SDK (engram/sdk/) supports ingest, query, private namespaces (X25519 + sr25519 signed requests), Shamir key-share distribution, and Arweave media. JS/TS agent stacks have no client.

Scope

• @engram/client npm package mirroring EngramClient (ingest, query, namespaces)
• sr25519 request signing (e.g. via @polkadot/util-crypto)
• X25519 hybrid encryption for private namespaces
• Typed errors matching engram/sdk/exceptions.py
• CI: build + tests against a local miner

Listed as an open bounty in ROADMAP.md — contact via the collaboration template to claim.

[caozhengming]

Hi, I am interested in the TypeScript SDK bounty and have reviewed the requested parity with the Python EngramClient. Before starting implementation, could you confirm the bounty amount, payout currency/method, and whether contributors should wait for explicit assignment? If confirmed, I would scope the first delivery around typed ingest/query/namespace APIs, sr25519 request signing, X25519 private-namespace encryption, matching typed errors, and CI tests against a local miner.

[JamesJi79]

I'd like to work on the TypeScript SDK bounty.

I have experience building TypeScript packages with cryptographic libraries (including @polkadot/util-crypto for sr25519 signing), and I can mirror the Python SDK's EngramClient interface for ingest, query, and namespace operations.

Plan:

1. Set up npm package scaffolding (@engram/client)
2. Implement core client with ingest/query/namespace methods
3. Integrate sr25519 request signing via @polkadot/util-crypto
4. Add X25519 hybrid encryption for private namespaces
5. Typed errors matching Python SDK's exceptions
6. CI pipeline with tests against local miner

I'll start with the core client interface and work outward. Please let me know if there are specific design preferences or constraints.

[HamzaKhanBUIC]

/claim I'll handle this bounty immediately!

[5AIBountyHunter]

I've submitted the TypeScript SDK implementation as PR #37. The SDK covers the full scope outlined in this issue:

• @engram/client npm package mirroring EngramClient (ingest, query, namespaces)
• sr25519 request signing (via @polkadot/util-crypto)
• X25519 hybrid encryption + AES-256-GCM for private namespaces
• Typed errors matching engram/sdk/exceptions.py
• CI-ready: TypeScript compilation clean, tests passing

Would love to discuss the bounty amount for this work!

[5AIBountyHunter]

I've submitted the TypeScript SDK implementation as PR #37 (#37) for the bounty. Please review and confirm the bounty amount.