computeruseprotocol
Computer Use Protocol (CUP) defines a cross-platform, LLM-friendly schema for representing desktop UI accessibility trees (JSON envelope and a compact text encoding) and the canonical action vocabulary needed for AI agents to perceive and interact with UI elements. This repo provides the core schema/spec; execution is implemented by SDKs and (optionally) MCP servers in the ecosystem.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
This repo is primarily a schema/spec (no network endpoints described), so transport security/authn/authz are not applicable from the provided content. Security posture for runtime capture/action execution depends on downstream SDKs/MCP servers. Since dependency/package hygiene is not provided in the snippet, dependency hygiene is estimated rather than verified.
⚡ Reliability
Best When
You want consistent UI grounding across platforms for agent workflows, and you can supply or integrate a platform-specific SDK/MCP server for capture and action execution.
Avoid When
You need a dedicated network service/API with authentication, rate limits, and guaranteed idempotent action semantics out of the box.
Use Cases
- • Representing native UI accessibility trees in a single cross-platform format for agent reasoning
- • Capturing UI state for LLM context (using the compact text encoding)
- • Standardizing agent actions (click/type/toggle/etc.) across Windows/macOS/Linux/web/mobile accessibility layers
- • Building interoperable SDK adapters that normalize platform-specific accessibility data into CUP
Not For
- • A complete, turnkey automation system by itself (it is primarily a protocol/spec; runtime capture/action execution lives in SDKs/adapters)
- • Secure, authenticated remote execution APIs where CUP would be called over the network
Interface
Authentication
The package/spec itself does not describe network authentication. Auth concerns would be relevant only for runtime SDKs or MCP servers provided by other components.
Pricing
License is MIT; pricing for SDK/MCP hosting is not specified in the provided README content.
Agent Metadata
Known Gotchas
- ⚠ The spec defines schema and actions, but action execution details (timeouts, failures, retry behavior) depend on the specific SDK/MCP adapter implementation.
- ⚠ UI trees can be dynamic; agents may need to re-capture/refresh the UI state between actions to avoid acting on stale nodes.
- ⚠ Compact encoding/tokenization can be optimized for LLM context; agents must rely on the documented format spec to parse it correctly.
Alternatives
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Scores are editorial opinions as of 2026-03-30.