# 2026-02-23 Session Notes

## OpenCode Plugin Package Creation

The plugin-builder agent was assigned to create a new `packages/opencode-plugin/` package—a self-contained runtime plugin for OpenCode that integrates with the Signet daemon. The session began by reviewing task assignments and understanding the architectural requirements.

## Key Requirements

The new package must be independently distributable with no workspace dependencies on @signet/* packages. It implements the OpenCode Plugin API using tools from @opencode-ai/plugin and mirrors patterns from the existing OpenClaw adapter. The implementation includes lifecycle hooks, event handlers, and 8 tool definitions adapted from the OpenClaw adapter.

## Technical Specifications

Version aligned to 0.1.87 for consistency across the monorepo. Package targets Node.js with bun build output to dist/signet.mjs. Strict TypeScript discipline enforced: no `any` types, no `as` assertions, explicit return types, and readonly modifiers where possible. The daemon client pattern uses pluginHeaders() with x-signet-runtime-path: "plugin" and x-signet-actor: "opencode-plugin".

## Task Breakdown

Five sequential tasks identified with dependency blocks:
1. Package scaffolding (package.json, tsconfig.json)
2. Type definitions (types.ts)
3. Daemon client implementation (daemon-client.ts)
4. Tool definitions (tools.ts)
5. Main plugin entry (index.ts)

Additional work includes refactoring connector-opencode install/uninstall and updating root build config.

## Reference Architecture

The implementation mirrors packages/adapters/openclaw/src/index.ts for client patterns and packages/adapters/openclaw/src/tool-schemas.ts for tool structure, but adapted to the OpenCode plugin API surface.