Kuberwastaken/claurst · error

rmcp list_all_resources failed

Error message

rmcp list_all_resources failed: {}

What it means

During connection setup, build_snapshot's list_all_resources call failed although the server advertised the resources capability in its initialize response. Enumerating resources errored server-side or at the connection level, aborting snapshot construction.

Solutions

1. Retry the connection
2. Check server logs for resources/list failures
3. Verify the server's resources implementation matches its advertised capability

When it happens

Trigger: Thrown at src-rust/crates/mcp/src/rmcp_backend.rs:651 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Kuberwastaken/claurst@b0637c97ec (2026-09-10). Data as JSON: /api/errors/2459d6ace3353b05. Report an issue: GitHub.

Appendix: source

Thrown at src-rust/crates/mcp/src/rmcp_backend.rs:651

        ),
        None => (None, ServerCapabilities::default(), None),
    };

    let tools = if capabilities.tools.is_some() {
        peer.list_all_tools()
            .await
            .map_err(|e| anyhow::anyhow!("rmcp list_all_tools failed: {}", e))?
            .into_iter()
            .map(convert_tool)
            .collect()
    } else {
        vec![]
    };

    let resources = if capabilities.resources.is_some() {
        peer.list_all_resources()
            .await
            .map_err(|e| anyhow::anyhow!("rmcp list_all_resources failed: {}", e))?
            .into_iter()
            .map(convert_resource)
            .collect()
    } else {
        vec![]
    };

    let prompts = if capabilities.prompts.is_some() {
        peer.list_all_prompts()
            .await
            .map_err(|e| anyhow::anyhow!("rmcp list_all_prompts failed: {}", e))?
            .into_iter()
            .map(convert_prompt)
            .collect()
    } else {
        vec![]
    };

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