Add app-server current-time impl (3/n)

[rka-oai]

What

Server should request:

{
  "id": 42,
  "method": "currentTime/read",
  "params": {
    "threadId": "11111111-1111-1111-1111-aaaaafdc2c11"
  }
}

Client should respond with something like:

{
  "id": 42,
  "result": {
    "currentTimeAt": 1781717655
  }
}

Why

Sessions configured with clock_source = "external" need a thread-specific external time source before inference. The system clock remains the default production provider.

Validation

• cargo test -p codex-app-server-protocol
• cargo test -p codex-app-server --test all current_time_read_round_trip_adds_reminder_to_model_input
• cargo test -p codex-app-server first_attestation_capable_connection_for_thread_only_uses_thread_subscribers
• cargo test -p codex-analytics
• just fix -p codex-app-server-protocol
• just fix -p codex-app-server

Stacked on #28824.

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Wait for subscriber attachment before reading app-server time

For threads created outside the synchronous thread/start path, such as subagents, client subscription is attached later by the thread_created_rx background branch, but the first model request can call this provider immediately. With clock_source = "app_server_client" and a reminder due on the first request, this lookup can see zero current-time-capable subscribers and fail the turn even though an initialized client would be attached moments later; make creation/attachment ordered for these threads or have the provider wait/retry for the initial subscriber.

Useful? React with 👍 / 👎.

[rka-oai]

Fixed cleanly for the supported single-client case in 5617874.

[pakrym-oai]

is this a real problem? how can a thread be started without a client?

[pakrym-oai]

related?

[pakrym-oai]

is see how it is related

[pakrym-oai]

should we simplify and drop capability

[pakrym-oai]

can we mark experimental?