Owen Lin 196964ef10 Preserve root turn attribution in turn-start events (#44611) ...

## Why

Persisted turn-start events lack the originating root turn ID, so they cannot directly associate child turns with the root turn that initiated them.

## What changed

- Add optional `root_turn_id` to `TurnStartedEvent`. Use the inherited root turn ID when available, otherwise the turn's own ID.
- Centralize turn-start emission for regular turns, shell commands, and manual compaction so they record attribution consistently.
- Carry attribution into `ThreadHistoryTurnChange` when processing turn-start events and retain it through completion in the history builder.
- Keep older records compatible by defaulting missing attribution to `None`.

## Testing

Add coverage for root and child turn attribution, persistence when tool collisions fail a turn before sampling, history change propagation, and deserialization of older turn-start records.

GitOrigin-RevId: 54a80b828ca7d1c4c19f13d468c01d052e1b9130

2026-09-10 18:24:13 +00:00

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models

Harden Code Mode tool-call completeness tracking (#44472)

2026-09-10 08:57:35 +00:00

openai_models

Record reasoning effort changes in conversation history behind a flag (#43110)

2026-09-05 21:56:43 +00:00

permissions

Add executor-context filesystem permission helpers (#43939)

2026-09-08 22:52:05 +00:00

prompts/base_instructions

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account.rs

Support Edu Plus and Edu Pro account plans (#39316)

2026-08-18 23:47:00 +00:00

agent_path.rs

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approvals.rs

Route approvals through the extension decision API (#43432)

2026-09-07 11:07:28 +00:00

auth.rs

Support managed AWS access keys for Amazon Bedrock (#40481)

2026-08-24 21:39:48 +00:00

capabilities_tests.rs

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capabilities.rs

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config_types.rs

Keep credentials out of app-server logs (#39993)

2026-08-21 19:04:32 +00:00

dynamic_tools.rs

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environment.rs

Skip Guardian reviews in Full Access (#42147)

2026-09-01 22:16:54 +00:00

error_tests.rs

Use curly apostrophes in protocol error messages (#43961)

2026-09-09 01:19:07 +00:00

error.rs

Use curly apostrophes in protocol error messages (#43961)

2026-09-09 01:19:07 +00:00

exec_output_tests.rs

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exec_output.rs

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items.rs

Add structured asynchronous user input requests (#42178)

2026-09-02 02:09:35 +00:00

legacy_events.rs

Add structured asynchronous user input requests (#42178)

2026-09-02 02:09:35 +00:00

lib.rs

Add configurable memory versions with isolated storage (#43797)

2026-09-08 10:55:48 +00:00

local_media_tests.rs

Add durable user-message queue dispatch (#37204)

2026-08-06 03:11:42 +00:00

local_media.rs

Add durable user-message queue dispatch (#37204)

2026-08-06 03:11:42 +00:00

mcp_approval_meta.rs

Require synchronous review for sensitive MCP actions (#41094)

2026-08-27 08:44:54 +00:00

mcp_policy.rs

Enforce environment MCP policies (#39335)

2026-08-19 01:26:16 +00:00

mcp.rs

Support openai/elicitation form requests (#41447)

2026-08-29 02:43:10 +00:00

memory_citation.rs

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memory_version.rs

Add configurable memory versions with isolated storage (#43797)

2026-09-08 10:55:48 +00:00

models.rs

Add bounded tool-result metadata support to executed tool calls (#44336)

2026-09-09 23:46:17 +00:00

network_policy.rs

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num_format.rs

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openai_models.rs

Gate experimental context by model capability at session startup (#43147)

2026-09-06 02:28:38 +00:00

parse_command.rs

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permission_profile_intersection_tests.rs

Preserve target-native paths in command approvals (#42577)

2026-09-03 16:21:10 +00:00

permission_profile_intersection.rs

Preserve target-native paths in command approvals (#42577)

2026-09-03 16:21:10 +00:00

permission_profile_snapshot.rs

Move permission profile snapshots into the protocol (#38651)

2026-08-14 21:17:29 +00:00

permissions.rs

Add executor-context filesystem permission helpers (#43939)

2026-09-08 22:52:05 +00:00

plan_tool.rs

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protocol.rs

Preserve root turn attribution in turn-start events (#44611)

2026-09-10 18:24:13 +00:00

realtime.rs

Persist realtime events in the thread timeline (#40508)

2026-08-25 01:03:20 +00:00

request_permissions.rs

Preserve target-native cwd in permission approval requests (#42314)

2026-09-02 17:27:50 +00:00

request_user_input_tests.rs

Make user input blocking behavior explicit (#36410)

2026-08-01 00:38:10 +00:00

request_user_input.rs

Make user input blocking behavior explicit (#36410)

2026-08-01 00:38:10 +00:00

response_item_id_tests.rs

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response_item_id.rs

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response_usage.rs

Preserve raw response usage metadata (#41980)

2026-09-01 05:17:11 +00:00

review_format.rs

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sanitized_git_url_tests.rs

Sanitize credentials from Git remote metadata (#40713)

2026-08-25 21:34:05 +00:00

sanitized_git_url.rs

Sanitize credentials from Git remote metadata (#40713)

2026-08-25 21:34:05 +00:00

security_risk.rs

Record reviewed actions with security risk scores (#40901)

2026-08-26 15:02:21 +00:00

session_id.rs

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shell_environment_tests.rs

Prevent Node REPL auth tokens from reaching child processes (#39301)

2026-08-18 22:29:58 +00:00

shell_environment.rs

Add credential brokering to network proxy feature config (#40466)

2026-08-24 19:52:27 +00:00

thread_id.rs

Distinguish rollout IDs from thread IDs (#38127)

2026-08-12 05:20:32 +00:00

tool_name.rs

Canonicalize default tools under the functions namespace (#37022)

2026-08-05 04:07:59 +00:00

turn_input.rs

Gate new turn submissions on host shutdown admission (#43943)

2026-09-08 23:45:10 +00:00

user_input.rs

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