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fix: refresh model preset settings on resume (#1052)

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Co-authored-by: Letta <noreply@letta.com>
Co-authored-by: letta-code <248085862+letta-code@users.noreply.github.com>
Co-authored-by: jnjpng <jnjpng@users.noreply.github.com>
This commit is contained in:
jnjpng
2026-02-21 14:38:13 -08:00
committed by GitHub
parent f5cc69c9d1
commit 7ad3a975b1
5 changed files with 382 additions and 83 deletions
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41
src/headless.ts
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@@ -878,23 +878,56 @@ export async function handleHeadlessCommand(
(!forceNew && !fromAfFile)
);
// If resuming and a model or system prompt was specified, apply those changes
if (isResumingAgent && (model || systemPromptPreset)) {
// If resuming, always refresh model settings from presets to keep
// preset-derived fields in sync, then apply optional command-line
// overrides (model/system prompt).
if (isResumingAgent) {
const { updateAgentLLMConfig } = await import("./agent/modify");
if (model) {
const { resolveModel } = await import("./agent/model");
const modelHandle = resolveModel(model);
if (!modelHandle) {
if (typeof modelHandle !== "string") {
console.error(`Error: Invalid model "${model}"`);
process.exit(1);
}
// Always apply model update - different model IDs can share the same
// handle but have different settings (e.g., gpt-5.2-medium vs gpt-5.2-xhigh)
const { updateAgentLLMConfig } = await import("./agent/modify");
const updateArgs = getModelUpdateArgs(model);
await updateAgentLLMConfig(agent.id, modelHandle, updateArgs);
// Refresh agent state after model update
agent = await client.agents.retrieve(agent.id);
} else {
const { getModelPresetUpdateForAgent } = await import("./agent/model");
const presetRefresh = getModelPresetUpdateForAgent(agent);
if (presetRefresh) {
// Resume preset refresh is intentionally scoped for now.
// We only force-refresh max_output_tokens + parallel_tool_calls.
// Other preset fields available in models.json (for example:
// context_window, reasoning_effort, enable_reasoner,
// max_reasoning_tokens, verbosity, temperature,
// thinking_budget) are intentionally not auto-applied yet.
const resumeRefreshUpdateArgs: Record<string, unknown> = {};
if (typeof presetRefresh.updateArgs.max_output_tokens === "number") {
resumeRefreshUpdateArgs.max_output_tokens =
presetRefresh.updateArgs.max_output_tokens;
}
if (typeof presetRefresh.updateArgs.parallel_tool_calls === "boolean") {
resumeRefreshUpdateArgs.parallel_tool_calls =
presetRefresh.updateArgs.parallel_tool_calls;
}
if (Object.keys(resumeRefreshUpdateArgs).length > 0) {
await updateAgentLLMConfig(
agent.id,
presetRefresh.modelHandle,
resumeRefreshUpdateArgs,
);
// Refresh agent state after model update
agent = await client.agents.retrieve(agent.id);
}
}
}
if (systemPromptPreset) {