Merge remote-tracking branch 'origin/main' into docs/webhooks-pricing

Author: jackbridger

.changeset/chat-agent-telemetry-default.md

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+---
+"@trigger.dev/sdk": patch
+---
+
+Fix `chat.inject` messages added from a tool mid-turn being saved before the assistant's response. They now stay after the tool result, where the model saw them, so the next turn keeps the same prompt prefix. If you roll `@trigger.dev/sdk` back to an earlier version, chats saved by this version lose these mid-turn `chat.inject` messages from the model's context, though the chat history shown in the UI keeps them.

.changeset/chat-inject-mid-turn-order.md

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+---
+"@trigger.dev/sdk": patch
+---
+
+Stream a sub-agent's reply through a parent tool call with `chat.forwardSubAgent`. Each chunk is written to the parent chat once and the tool resolves with the sub-agent's final message, so streaming a sub-agent costs bytes in proportion to its reply. Yielding `stream.messages()` snapshots resends the whole message on every chunk, which grows with the square of the reply.
+
+```ts
+execute: async ({ topic }, { toolCallId, abortSignal }) => {
+  const stream = await researcher.sendMessage(topic, { abortSignal });
+  return await chat.forwardSubAgent(stream, { toolCallId });
+},
+```
+
+Render it while it runs with `useSubAgentMessages()` from `@trigger.dev/sdk/chat/react` (or `createSubAgentMessages()` outside React).

.changeset/forward-sub-agent.md

@@ -0,0 +1,5 @@
+---
+"@trigger.dev/core": patch
+---
+
+Run metadata operations now reject JSON-path keys that use escaped dots to reach `__proto__`, `constructor` or `prototype`.

.changeset/hosted-webhook-channels.md

@@ -0,0 +1,5 @@
+---
+"@trigger.dev/core": patch
+---
+
+`runs.subscribeToRun` now ends after the run completes. The `for await` loop exits right after the update with the final status, and the subscription stops its connection, so a script that subscribes to a run exits on its own. Pass `stopOnCompletion: false` to keep the subscription open after completion.