/**
* OpenCode Platform Adapter
*
* Handles the hook format for OpenCode.
* OpenCode uses a similar hook system to Claude Code.
* Initially mirrors Claude Code format; separate class allows
* future divergence as OpenCode evolves its hook API.
*
* @module @agentkits/memory/hooks/adapters/opencode-adapter
*/
import type { PlatformAdapter } from './platform-adapter.js';
import type { NormalizedHookInput, HookResult } from '../types.js';
import { getProjectName } from '../types.js';
/**
* OpenCode platform adapter.
*
* OpenCode hook format is currently compatible with Claude Code.
* Field mapping may diverge in future versions.
*
* Input format (same as Claude Code for now):
* { session_id, cwd, prompt, tool_name, tool_input, tool_result,
* transcript_path, stop_reason }
*
* Output format (simplified — no hookSpecificOutput):
* { continue, additionalContext? }
*/
export class OpenCodeAdapter implements PlatformAdapter {
readonly name = 'opencode';
readonly supportedEvents = [
'context', 'session-init', 'observation', 'summarize',
] as const;
parseInput(stdin: string): NormalizedHookInput {
try {
const raw = JSON.parse(stdin);
const cwd = raw.cwd || process.cwd();
return {
sessionId: raw.session_id || `session_${Date.now()}`,
cwd,
project: getProjectName(cwd),
prompt: raw.prompt,
toolName: raw.tool_name,
toolInput: raw.tool_input,
toolResponse: raw.tool_result,
transcriptPath: raw.transcript_path,
stopReason: raw.stop_reason,
timestamp: Date.now(),
};
} catch {
const cwd = process.cwd();
return {
sessionId: `session_${Date.now()}`,
cwd,
project: getProjectName(cwd),
timestamp: Date.now(),
};
}
}
formatOutput(result: HookResult): string {
// OpenCode uses a simpler output format
const response: Record<string, unknown> = {
continue: true,
};
if (result.additionalContext) {
response.additionalContext = result.additionalContext;
}
if (result.error) {
response.error = result.error;
}
return JSON.stringify(response);
}
}
