Add Parallel Agents plugin to run subagents concurrently#1
Add Parallel Agents plugin to run subagents concurrently#1prostonoob wants to merge 2 commits intodevfrom
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.opencode/plugins/parallel-agents.ts
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| parts: [{ type: "text", text: item.prompt }], | ||
| }, | ||
| }) | ||
| .then((res) => { |
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The background client.session.prompt(...) call only uses .then(...) without a rejection handler, so transport-level failures (for example, fetch/network abort errors) leave the job in running forever. In that case agents_wait will keep polling until timeout and never surface the real failure, which makes parallel runs nondeterministic and hard to recover from.
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.opencode/plugins/parallel-agents.ts
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| jobs: tool.schema.array(tool.schema.string()).optional(), | ||
| }, | ||
| async execute(args) { | ||
| const ids = args.jobs?.length ? args.jobs : Array.from(map.keys()) |
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agents_status defaults to Array.from(map.keys()) while map is module-global, so a caller can retrieve jobs (including outputs and session IDs) started by other chats/sessions in the same process. In any shared runtime this leaks cross-session data; statuses should be filtered by owner session (or equivalent access check) before returning results.
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.opencode/plugins/parallel-agents.ts
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| const jid = id() | ||
| const desc = item.description?.trim() || "parallel task" | ||
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| const created = await client.session.create({ |
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Each task awaits client.session.create(...) inside a Promise.all, so if one create request rejects, the whole agents_start call rejects and the caller receives no job IDs, even though other tasks may already have been launched. This makes partial failures unrecoverable; create errors should be caught per task and converted into per-job error states instead of aborting the entire batch.
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Motivation
Description
.opencode/plugins/parallel-agents.tswhich implements aParallelAgentsPluginthat exposes toolsagents_start,agents_status, andagents_waitand tracks jobs in an in-memoryMap.agents_startcreates separate sessions and prompts up to 8 subagents in parallel and returns job ids,agents_statusreturns current job state and outputs, andagents_waitpolls until selected jobs finish (with an optional timeout) usingBun.sleepfor polling..opencode/README.parallel-agents.mdwith usage instructions and explains typical flow and how to enable the plugin viaopencode.json.experimental.chat.system.transformhint recommending theagents_start/agents_status/agents_waitflow for multi-task requests.Testing
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