memory.candidate_multiplier must be in 1..={MAX_MEMORY_RERAN

Error message

memory.candidate_multiplier must be in 1..={MAX_MEMORY_RERANK_CANDIDATE_MULTIPLIER} (got {})

What it means

Error "memory.candidate_multiplier must be in 1..={MAX_MEMORY_RERANK_CANDIDATE_MULTIPLIER} (got {})" thrown in zeroclaw-labs/zeroclaw.

Source

Thrown at crates/zeroclaw-config/src/schema.rs:11553

fn default_rerank_strategy() -> String {
    "none".into()
}
fn default_mmr_lambda() -> f64 {
    0.7
}
fn default_importance_weight() -> f64 {
    0.2
}
fn default_recency_weight() -> f64 {
    0.1
}
fn default_fts_early_return_score() -> f64 {
    0.85
}

fn validate_memory_rerank_config(memory: &MemoryConfig) -> Result<()> {
    if !(1..=MAX_MEMORY_RERANK_CANDIDATE_MULTIPLIER).contains(&memory.candidate_multiplier) {
        anyhow::bail!(
            "memory.candidate_multiplier must be in 1..={MAX_MEMORY_RERANK_CANDIDATE_MULTIPLIER} (got {})",
            memory.candidate_multiplier
        );
    }

    for (path, value) in [
        ("memory.min_relevance_score", memory.min_relevance_score),
        ("memory.mmr_lambda", memory.mmr_lambda),
        ("memory.importance_weight", memory.importance_weight),
        ("memory.recency_weight", memory.recency_weight),
    ] {
        if !value.is_finite() || !(0.0..=1.0).contains(&value) {
            anyhow::bail!("{path} must be a finite number in 0.0..=1.0 (got {value})");
        }
    }

    Ok(())
}

View on GitHub (pinned to 88bb9c8533)

Solutions

Set memory.candidate_multiplier to an integer within the allowed 1..=MAX range in config.toml.

When it happens

Trigger: Thrown at crates/zeroclaw-config/src/schema.rs:11553 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of zeroclaw-labs/zeroclaw@88bb9c8533 (2026-08-23). Data as JSON: /api/errors/b6d77fb9040e548f. Report an issue: GitHub.