events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L11 [2026-10-22T20:05:00.413Z] turn/start {"effort": "xhigh", "model": "gpt-6.1-sol", "serviceTier": "default", "threadId": "01a16537-7bf0-72f3-b842-11d189c8f98d"}

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L11 [2026-10-22T20:05:00.413Z] actual user prompt Read-only investigation: use two parallel subagents to independently summarize (1) the purpose of packages/provider-core and (2) the purpose of packages/contracts. Do not change files or run checks. Keep each summary under 100 words. Then combine the results. Use orchestrator_capabilities first.

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L11 [2026-10-22T20:05:00.413Z] injected t3_code_orchestration_01
## T3 Code orchestration

The `t3-code` MCP server provides app-owned orchestration. Treat these concepts distinctly:

- A delegated task/subagent is child work owned by the current thread. Use `orchestrator_capabilities` to discover the current provider/model IDs from the same live catalog as the composer, including configured custom models. It lists a short set of models per provider; pass `search` to find others. Do not treat a native tool's model list as the full list of available subagent models. Prefer native subagent tools for same-provider work only when they support the chosen model and no model options are requested or inherited. Use `delegate_task` with that provider instance and model when native tools cannot, including for same-provider work. Also use `delegate_task` for cross-provider or explicitly T3-owned child tasks. For a child task that needs a separate checkout, use `delegate_task` with `isolation:"worktree"` across any provider or model. It starts from the parent local commit and runs project setup; uncommitted edits are not copied. Retain each returned `taskId`, and use `task_status` or `task_cancel` to manage it. The returned `childThreadId` is backing storage for the subagent, not the target for starting another delegated review round.
- `t3_thread_launch` and `create_threads` create ordinary top-level T3 conversations. Use them only when the user explicitly asks for separate/new/top-level threads or conversations. Never use them merely because the user said "subagent" or requested parallel delegated work.
- For every T3 delegated review round, call `delegate_task` again. Include the original brief, prior findings, responses, and unresolved objections in each new task prompt. Track each round by its own `taskId`. Use a distinct `clientRequestId` per round, stable across retries of that round. Do not use `t3_thread_send` on `childThreadId` to continue a delegated review.

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L11 [2026-10-22T20:05:00.413Z] injected t3_code_orchestration_05
- When model options are requested or the child keeps the parent's provider instance and model with nonempty `inheritedOptions` from `orchestrator_capabilities`, use `delegate_task` even for native-supported models. Native subagents cannot reliably apply T3 model options. Read the selected model's descriptors from `orchestrator_capabilities` and put settings in `target.options`, not only in the prompt. Claude commonly uses {"effort":"max","fastMode":true}; Codex uses {"reasoningEffort":"max","serviceTier":"priority"}. Do not translate max to high or ignore unsupported settings: report a capability mismatch. Options inherit only for the same provider instance and model; explicit entries override individual values, and [] or {} clears them. Check the returned providerInstanceId, model, and options against the requested selection.

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L23 [2026-10-22T20:05:06.353Z] capabilities subset {"inheritedModel": "gpt-6.1-sol", "inheritedOptions": [{"id": "reasoningEffort", "value": "xhigh"}, {"id": "serviceTier", "value": "default"}], "inheritedProviderInstanceId": "codex"}

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L36 [2026-10-22T20:05:34.440Z] turn/start {"effort": "xhigh", "model": "gpt-6.1-sol", "serviceTier": "default", "threadId": "01a16538-0415-7db2-8660-b1e052075c9c"}

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L95 [2026-10-22T20:06:27.621Z] delegate_task {"arguments": {"clientRequestId": "readonly-package-purpose-provider-core-b7937217-r1", "isolation": "shared", "mode": "wait", "role": "research", "target": {"model": "gpt-6.1-sol", "options": {"reasoningEffort": "xhigh", "serviceTier": "default"}, "providerInstanceId": "codex"}, "task": "Read-only investigation in /home/ubuntu/wt/issue-23525. Independently inspect packages/provider-core and enough nearby imports/usages to explain its purpose and boundaries. Read applicable AGENTS.md instructions. Do not change any files, run checks/tests/builds/formatters, install anything, browse, or spawn additional subagents. Use only read-only file inspection. Return a concise summary UNDER 100 WORDS with 1-3 clickable absolute local file links supporting it. Explain what this package owns and how the rest of T3 Code uses it; avoid listing every file. Another independent agent is examining packages/contracts, but focus on your assigned package.", "timeoutMs": 55000, "title": "Summarize provider-core purpose"}, "error": null, "id": "exec-11f5e305-75b6-4877-aaff-eaa7ceb05ed1", "status": "completed"}

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L105 [2026-10-22T20:06:30.244Z] turn/start {"effort": "xhigh", "model": "gpt-6.1-sol", "serviceTier": "default", "threadId": "01a16538-de36-7d81-8e36-a1a8abb0ea8c"}

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L177 [2026-10-22T20:07:23.028Z] delegate_task {"arguments": {"clientRequestId": "readonly-package-purpose-contracts-b7937217-r1", "isolation": "shared", "mode": "wait", "role": "research", "target": {"model": "gpt-6.1-sol", "options": {"reasoningEffort": "xhigh", "serviceTier": "default"}, "providerInstanceId": "codex"}, "task": "Read-only investigation in /home/ubuntu/wt/issue-23525. Independently inspect packages/contracts and enough nearby imports/usages to explain its purpose and boundaries. Read applicable AGENTS.md instructions. Do not change any files, run checks/tests/builds/formatters, install anything, browse, or spawn additional subagents. Use only read-only file inspection. Return a concise summary UNDER 100 WORDS with 1-3 clickable absolute local file links supporting it. Explain what this package owns and how the rest of T3 Code uses it; avoid listing every file. Another independent agent is examining packages/provider-core, but focus on your assigned package.", "timeoutMs": 55000, "title": "Summarize contracts purpose"}, "error": null, "id": "exec-4cc000d6-f200-44f2-af2b-c453e21903ec", "status": "completed"}

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L209 [2026-10-22T20:08:01.812Z] turn/start {"effort": "xhigh", "model": "gpt-6.1-sol", "serviceTier": "default", "threadId": "01a16537-7bf0-72f3-b842-11d189c8f98d"}

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L214 [2026-10-22T20:08:03.141Z] turn/start {"effort": "xhigh", "model": "gpt-6.1-sol", "serviceTier": "default", "threadId": "01a16538-de36-7d81-8e36-a1a8abb0ea8c"}

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L262 [2026-10-22T20:08:32.393Z] turn/start {"effort": "xhigh", "model": "gpt-6.1-sol", "serviceTier": "default", "threadId": "01a1653a-b515-7753-9c84-58945e365374"}

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L295 [2026-10-22T20:08:52.647Z] delegate_task {"arguments": {"clientRequestId": "readonly-package-purpose-contracts-b7937217-r1", "isolation": "shared", "mode": "wait", "role": "research", "target": {"model": "gpt-6.1-sol", "options": {"reasoningEffort": "xhigh", "serviceTier": "default"}, "providerInstanceId": "codex"}, "task": "Read-only investigation in /home/ubuntu/wt/issue-23525. Independently inspect packages/contracts and enough nearby imports/usages to explain its purpose and boundaries. Read applicable AGENTS.md instructions. Do not change any files, run checks/tests/builds/formatters, install anything, browse, or spawn additional subagents. Use only read-only file inspection. Return a concise summary UNDER 100 WORDS with 1-3 clickable absolute local file links supporting it. Explain what this package owns and how the rest of T3 Code uses it; avoid listing every file. Another independent agent is examining packages/provider-core, but focus on your assigned package.", "timeoutMs": 55000, "title": "Summarize contracts purpose"}, "error": {"message": "tool call error: tool call failed for `t3-code/delegate_task`\n\nCaused by:\n    Transport send error: Transport [codex_rmcp_client::event_notification_transport::EventNotificationTransport<rmcp::transport::worker::WorkerTransport<rmcp::transport::streamable_http_client::StreamableHttpClientWorker<codex_rmcp_client::http_client_adapter::StreamableHttpClientAdapter>>>] error: unexpected server response: HTTP 503: "}, "id": "exec-6b4c3a80-d02a-4b1d-b552-397181ca075b", "status": "failed"}

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L315 [2026-10-22T20:10:00.371Z] turn/start {"effort": "xhigh", "model": "gpt-6.1-sol", "serviceTier": "default", "threadId": "01a16537-7bf0-72f3-b842-11d189c8f98d"}

events.b7937217-bb95-4ea8-bce3-9dfa4c7dce0b.log:L321 [2026-10-22T20:10:03.496Z] turn/start {"effort": "xhigh", "model": "gpt-6.1-sol", "serviceTier": "default", "threadId": "01a1653a-b515-7753-9c84-58945e365374"}

Distinct MCP tool-call IDs across whole captured log (started/completed deduplicated): {"delegate_task": 3, "orchestrator_capabilities": 1, "task_status": 2}

delegate_task distinct invocation count: 3
