openai/codex · error · anyhow::Error

inference request payload {} did not contain input

Error message

inference request payload {} did not contain input

What it means

Error "inference request payload {} did not contain input" thrown in openai/codex.

Source

Thrown at codex-rs/rollout-trace/src/reducer/conversation.rs:44

mod normalize;

impl TraceReducer {
    /// Reduces an inference request input snapshot into model-visible conversation items.
    ///
    /// Request snapshots are reconciled by position against the previous model-visible
    /// snapshot for the thread so repeated history reuses ids while newly inserted
    /// items remain distinct.
    pub(super) fn reduce_inference_request(
        &mut self,
        wall_time_unix_ms: i64,
        inference_call_id: &InferenceCallId,
        thread_id: &str,
        codex_turn_id: &str,
        request_payload: &RawPayloadRef,
    ) -> Result<Vec<String>> {
        let payload = self.read_payload_json(request_payload)?;
        let Some(input) = payload.get("input") else {
            bail!(
                "inference request payload {} did not contain input",
                request_payload.raw_payload_id
            );
        };
        let Some(request_items) = input.as_array() else {
            bail!(
                "inference request payload {} had non-array input",
                request_payload.raw_payload_id
            );
        };

        let items = normalize::normalize_model_items(request_items, request_payload)?;

        let previous_response_id = payload.get("previous_response_id").and_then(Value::as_str);
        // After compaction, the next full request is compared against the installed replacement
        // history, not the pre-compaction prompt. Any repeated developer/context prefix that Codex
        // reinjects must therefore become a fresh post-compaction conversation item.
        let post_compaction_snapshot = if previous_response_id.is_none() {

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/rollout-trace/src/reducer/conversation.rs:44 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/0a8340bc1395b63d. Report an issue: GitHub.