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IdeaUnderservedCLIDEVTOOLTESTINGLive

A testing framework that records, replays, and validates ACP agent sessions before shipping to production

OpenClaw launched ACP (Agent Client Protocol) for stateful IDE-to-agent sessions, but developers building ACP integrations have no way to test, replay, or debug sessions without running the full stack. The protocol is new and documentation is sparse, leaving builders to guess at message formats and state transitions. This tool provides a local ACP test harness with session recording, replay, protocol validation, and a visual inspector for debugging agent-to-client communication.

Demand Breakdown

GitHub
450
HN
380

Gap Assessment

UnderservedExisting solutions leave gaps. Underserved market

1 tool exist (ACPX) but gaps remain: No recording, no replay, no validation, no visual debugging, only a client implementation.

Features3 agent-ready prompts

Proxy that captures full ACP protocol traffic (messages, tool calls, responses) and replays them deterministically for regression testing
Validator that checks every ACP message against the protocol spec, flags malformed requests, and reports compliance coverage
Web UI that renders an ACP session as a timeline with expandable message payloads, tool call trees, and error highlights

Competitive LandscapeFREE

ProductDoesMissing
ACPXOfficial headless CLI client implementing the ACP protocolNo recording, no replay, no validation, no visual debugging, only a client implementation

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