Goal

Add SDK-facing artifact RPCs so external apps can discover and render rich outputs.

OpenMeow and other app clients will need stable access to generated files, diffs, screenshots, logs, media, trajectories, and PR links without parsing runtime internals.

Proposed methods

• artifacts.list
• artifacts.get
• artifacts.download

Acceptance criteria

• Artifacts can be queried by runId, sessionKey, or taskId.
• Artifact summaries include stable type/title/mime/size metadata.
• Download supports URL or bytes depending on transport constraints.
• SDK can expose artifacts without clients knowing runtime-specific storage details.
• Unsupported/missing artifacts return typed errors.

References

• Proposal: https://github.com/OpenCoven/open-meow-sdk/blob/main/docs/rpc-contract-proposals.md#artifactslistgetdownload
• Dogfood issue: P1: Define SDK-facing artifact RPCs OpenCoven/open-meow-sdk#5