v1.1.0

@agent-e2e/harness v1.1.0

@agent-e2e/harness v1.1.0 adds the provider-owned stack exploration surface for agent-driven debugging and verification.

Highlights

• Dev MCP now exposes stack.status, stack.logs, stack.explore.list, and stack.explore.run.
• Stack providers can declare typed exploration tools with Zod input and output schemas.
• Dev-mode agents can discover and run provider-owned stack/application tools without the harness hardcoding a database, framework, or runtime.
• Journey and agent-e2e verify code receives a narrowed observation client under execution.stack.explore.run(...).
• Verify-safe tools are restricted to observation-only tools, preserving the application path as the cause of product-visible behavior.
• The showcase demonstrates stack exploration with persisted notes observation and PostgreSQL query exploration.
• The agent-e2e-harness skill documents the stack exploration setup and verification pattern.

Public Package Surface

• @agent-e2e/harness/stack now includes the stack exploration tool definitions and helpers.
• @agent-e2e/harness/dev-mcp exposes the stack exploration tools through the standard Dev MCP endpoint.
• @agent-e2e/harness/verify exposes the narrowed verify execution surface for observation-safe stack tools.

Installation

npm install -D @agent-e2e/harness playwright @modelcontextprotocol/sdk zod

Install the adoption skill for Codex:

npx skills add aitoroses/agent-e2e-harness --skill agent-e2e-harness --agent codex -y

Quickstart

Start with the README 5-minute walkthrough. For stack exploration, expose a provider through agent-e2e.config.ts, start agent-e2e dev, attach a standard MCP client to http://127.0.0.1:3766/mcp, then call stack.explore.list to discover provider-declared tools.

Breaking Changes

None.