tool runtime end referenced unknown call {tool_call_id}

Error message

tool runtime end referenced unknown call {tool_call_id}

What it means

Error "tool runtime end referenced unknown call {tool_call_id}" thrown in openai/codex.

Source

Thrown at codex-rs/rollout-trace/src/reducer/tool.rs:306

        if terminal_operation_id.is_some() {
            self.sync_terminal_model_observation(&tool_call_id)?;
        }
        self.start_agent_interaction_from_runtime(&tool_call_id, &runtime_payload)?;
        Ok(())
    }

    /// Records a runtime-end observation for an already started tool call.
    pub(super) fn end_tool_runtime_observation(
        &mut self,
        seq: RawEventSeq,
        wall_time_unix_ms: i64,
        tool_call_id: ToolCallId,
        status: ExecutionStatus,
        runtime_payload: RawPayloadRef,
    ) -> Result<()> {
        let (thread_id, terminal_operation_id) = {
            let Some(tool_call) = self.rollout.tool_calls.get_mut(&tool_call_id) else {
                bail!("tool runtime end referenced unknown call {tool_call_id}");
            };
            push_unique(
                &mut tool_call.raw_runtime_payload_ids,
                &runtime_payload.raw_payload_id,
            );
            (
                tool_call.thread_id.clone(),
                tool_call.terminal_operation_id.clone(),
            )
        };

        if let Some(operation_id) = terminal_operation_id {
            self.end_terminal_operation(
                seq,
                wall_time_unix_ms,
                &thread_id,
                &operation_id,
                status,

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/rollout-trace/src/reducer/tool.rs:306 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/f0cabbd8b1d7095a. Report an issue: GitHub.