Skip to content

Fix assign-to-agent model parameter — add coding_agent_model_selection feature flag #16630

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
pelikhan merged 2 commits into from
Feb 18, 2026
Merged

Fix assign-to-agent model parameter — add coding_agent_model_selection feature flag #16630

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
8d02387
Initial plan
Copilot Feb 18, 2026
dc3c9f1
Add coding_agent_model_selection feature flag when model parameter is…
Copilot Feb 18, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 4 additions & 1 deletion actions/setup/js/assign_agent_helpers.cjs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -359,10 +359,13 @@ async function assignAgentToIssue(assignableId, agentId, currentAssignees, agent
if (customInstructions) debugMsg += `, customInstructions=${customInstructions.substring(0, 50)}...`;
core.debug(debugMsg);

// Build GraphQL-Features header - include coding_agent_model_selection when model is provided
const graphqlFeatures = model ? "issues_copilot_assignment_api_support,coding_agent_model_selection" : "issues_copilot_assignment_api_support";

const response = await github.graphql(mutation, {
...variables,
headers: {
"GraphQL-Features": "issues_copilot_assignment_api_support",
"GraphQL-Features": graphqlFeatures,
},
});

Expand Down
7 changes: 7 additions & 0 deletions actions/setup/js/assign_agent_helpers.test.cjs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -258,6 +258,11 @@ describe("assign_agent_helpers.cjs", () => {
actorIds: ["AGENT_456", "USER_1"],
})
);

// Should only include issues_copilot_assignment_api_support when model is not provided
const calledArgs = mockGithub.graphql.mock.calls[0];
const variables = calledArgs[1];
expect(variables.headers["GraphQL-Features"]).toBe("issues_copilot_assignment_api_support");
});

it("should preserve existing assignees when adding agent", async () => {
Expand Down Expand Up @@ -324,6 +329,8 @@ describe("assign_agent_helpers.cjs", () => {
expect(mutation).toContain("agentAssignment");
expect(mutation).toContain("model: $model");
expect(variables.model).toBe("claude-opus-4.6");
// Should include coding_agent_model_selection feature flag when model is provided
expect(variables.headers["GraphQL-Features"]).toBe("issues_copilot_assignment_api_support,coding_agent_model_selection");
});

it("should include customAgent in agentAssignment when provided", async () => {
Expand Down
Loading