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fix(canvas): send model when generating CONTEXT.md with agent #3389

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benjackwhite merged 1 commit into from
Jul 13, 2026
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fix(canvas): send model when generating CONTEXT.md with agent #3389

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6 changes: 6 additions & 0 deletions packages/ui/src/features/canvas/hooks/useGenerateContext.ts
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import { DEFAULT_GATEWAY_MODEL } from "@posthog/agent/gateway-models";
import {
TASK_SERVICE,
type TaskService,
Expand Down Expand Up @@ -42,6 +43,11 @@ export function useGenerateContext(channelId: string, channelName: string) {
// test a local build of these features before merging.
workspaceMode,
allowNoRepo: true,
// A cloud run pairs a runtime adapter with a model, and the API
// rejects one without the other. Since this flow lets the agent pick
// its repo at runtime, it never surfaces a model picker, so pin the
// default gateway model here to match the adapter the saga defaults to.
model: DEFAULT_GATEWAY_MODEL,

@greptile-apps greptile-apps Bot Jul 13, 2026

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P1 Pinned Model Skips Gateway Resolution

When the gateway does not advertise claude-opus-4-8 for a user, org, or region, this flow still sends that fixed model instead of falling back through the existing model resolver. The generate-context run can then fail validation or startup even though the request now includes a model field.

@greptile-apps greptile-apps Bot Jul 13, 2026

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P2 Model Sent Without Adapter

This call now sends model: DEFAULT_GATEWAY_MODEL, but it still does not send the matching adapter. If the cloud API enforces the adapter/model pair the inline comment describes, the default cloud generate path can serialize runtime_adapter: null with a Claude model and be rejected before generation starts.

},
(output) => invalidateTasks(output.task),
);
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