openai/codex · error · anyhow::Error

tool call rejected because the catalog changed after `{}/{to

Error message

tool call rejected because the catalog changed after `{}/{tool_name}` was prepared

What it means

Error "tool call rejected because the catalog changed after `{}/{tool_name}` was prepared" thrown in openai/codex.

Source

Thrown at codex-rs/codex-mcp/src/binding.rs:295

    pub async fn call_with_preparation<F, Fut>(
        &self,
        requested_timeout: Option<Duration>,
        prepare: F,
    ) -> Result<CallToolResult>
    where
        F: FnOnce() -> Fut,
        Fut: Future<Output = Result<(Option<JsonValue>, Option<JsonValue>)>>,
    {
        let effective_timeout = match (self.client.tool_timeout, requested_timeout) {
            (Some(server_timeout), Some(requested_timeout)) => {
                Some(server_timeout.min(requested_timeout))
            }
            (server_timeout, requested_timeout) => server_timeout.or(requested_timeout),
        };
        let tool_name = self.tool_info.tool.name.to_string();
        let current_revision = self.catalog_revision_source.read().await;
        if *current_revision != self.catalog_revision {
            return Err(anyhow::anyhow!(
                "tool call rejected because the catalog changed after `{}/{tool_name}` was prepared",
                self.server_name
            ));
        }
        let (arguments, meta) = prepare().await?;
        let result = self
            .client
            .client
            .call_tool(tool_name.clone(), arguments, meta, effective_timeout)
            .await
            .with_context(|| format!("tool call failed for `{}/{tool_name}`", self.server_name))?;
        drop(current_revision);
        Ok(call_tool_result_from_rmcp(result))
    }
}

pub(crate) fn call_tool_result_from_rmcp(result: rmcp::model::CallToolResult) -> CallToolResult {
    let content = result

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/codex-mcp/src/binding.rs:295 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/90962c3cc8ab9913. Report an issue: GitHub.