# Public-safe evidence extract for github/copilot-cli#4380
# Full redacted log: copilot-cli-4380-process-1785950461651-34100.REDACTED.log

## Session bootstrap (identity scrubbed)
2026-08-05T17:21:01.799Z [INFO] Session indexing debug: SESSION_INDEXING=true, repository=<org>/<repo-a>
2026-08-05T17:21:02.873Z [INFO] No update needed, current version is 1.0.78, fetched latest release is v1.0.78
2026-08-05T17:21:02.966Z [INFO] Starting Copilot CLI: 1.0.78
2026-08-05T17:21:02.966Z [INFO] Node.js version: v24.18.1
2026-08-05T17:21:03.182Z [INFO] Remote session access enabled
2026-08-05T17:21:03.400Z [INFO] Welcome <github-user> (via gh)!
2026-08-05T17:21:03.454Z [INFO] Remote session export enabled: https://api.business.githubcopilot.com/agents
2026-08-05T17:21:05.178Z [INFO] Remote session active (steerable): https://github.com/<org>/<repo>/tasks/<uuid>
2026-08-05T17:27:36.923Z [INFO] Welcome <github-user> (via gh)!
2026-08-05T18:23:24.525Z [WARNING] [rust:copilot_runtime::remote::api_session_exporter] remote session batch flush failed {"error":"submitEvents reported a transient failure","event_count":0,"completed_command_id_count":0}
2026-08-05T19:19:56.145Z [INFO] Welcome <github-user> (via gh)!
2026-08-05T21:18:11.225Z [INFO] Welcome <github-user> (via gh)!

## Session model inherit evidence (nearby agents)
2026-08-05T18:07:36.395Z [INFO] Agent "code-review" has no model specified, inheriting session model "grok-4.5"

## Rubber-duck executions
2026-08-05T20:05:21.531Z [INFO] SessionAgentExecutor.execute() called for "rubber-duck" (toolCallId=call_<id>)
2026-08-05T20:05:39.513Z [INFO] notifySubagentComplete called for agent rubber-duck (call_<id>), failed=false
2026-08-05T20:25:47.652Z [INFO] SessionAgentExecutor.execute() called for "rubber-duck" (toolCallId=call_<id>)
2026-08-05T20:47:28.034Z [INFO] notifySubagentComplete called for agent rubber-duck (call_<id>), failed=false
2026-08-05T20:47:28.042Z [INFO] System notification: Agent "audit1340-red-team" (rubber-duck) has finished processing and is now idle...
2026-08-05T21:26:43.401Z [INFO] SessionAgentExecutor.execute() called for "rubber-duck" (toolCallId=call_<id>)
2026-08-05T21:28:49.300Z [INFO] notifySubagentComplete called for agent rubber-duck (call_<id>), failed=false
2026-08-05T21:28:49.304Z [INFO] System notification: Agent "audit-history-duck" (rubber-duck) has finished processing and is now idle...
2026-08-05T21:41:13.672Z [INFO] SessionAgentExecutor.execute() called for "rubber-duck" (toolCallId=call_<id>)
2026-08-05T21:57:58.205Z [INFO] notifySubagentComplete called for agent rubber-duck (call_<id>), failed=false
2026-08-05T22:24:34.949Z [INFO] SessionAgentExecutor.execute() called for "rubber-duck" (toolCallId=call_<id>)
2026-08-05T22:36:25.759Z [INFO] notifySubagentComplete called for agent rubber-duck (call_<id>), failed=false

## /subagents UI observation (not from log; user-provided)
rubber-duck | built-in | complementary - unavailable, disabled | Overridden: No | Status: On
No rubber-duck entry under settings.json subagents.agents (not user-overridden).

## Gap for maintainers
Process INFO log records execute/complete for rubber-duck but does not emit
Complementary auto session acquired: parent_model=... available_models=... selected_model=...
UI shows complementary path unavailable/disabled for current session model catalog.