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Simplify session-init: only send SDK prompt, accept session title tradeoff

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Apunkt 2026-05-27 16:58:50 +02:00
parent 87c43219d7
commit a6d6e46b4c
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1 changed files with 15 additions and 17 deletions
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32
deploy/opencode/iai-mcp-session-init.js
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@ -1,8 +1,8 @@
/**
* iai-mcp session-init plugin for OpenCode.
*
* Sets the system prompt via chat.message hook's UserMessage.system field.
* This reaches the main agent and triggers memory_session_context on every session.
* Sends SDK prompt on session.updated to inject the system instruction.
* The model calls memory_session_context on every new session.
*/
export const IaiMcpSessionInit = async ({
@ -14,27 +14,25 @@ export const IaiMcpSessionInit = async ({
serverUrl,
$,
}) => {
const injectedSessions = new Set();
const doneSessions = new Set();
return {
event: async ({ event }) => {
if (event.type !== "session.updated") return;
const sid = event.properties?.info?.id;
if (!sid || injectedSessions.has(sid)) return;
injectedSessions.add(sid);
},
if (!sid || doneSessions.has(sid)) return;
doneSessions.add(sid);
"chat.message": async (input, output) => {
const sid = input.sessionID;
if (!sid || !injectedSessions.has(sid)) return;
if (injectedSessions.has(`done-${sid}`)) return;
if (output.message) {
output.message.system =
"MANDATORY: Call `memory_session_context` (no arguments) BEFORE answering any user query.";
}
injectedSessions.add(`done-${sid}`);
try {
await client.session.prompt({
path: { id: sid },
body: {
system: "MANDATORY: Call `memory_session_context` (no arguments) BEFORE answering any user query.",
parts: [{ type: "text", text: "INIT" }],
noReply: false,
},
});
} catch {}
},
};
};