Struct AconConfig 

pub struct AconConfig {
    pub enabled: bool,
    pub passthrough_threshold: usize,
    pub summarize_threshold: usize,
    pub total_budget: usize,
    pub summarize_provider: ProviderName,
}

Token budget configuration for Acon tool-result compression (#4021).

Controls per-result and batch-level token budgets for tool outputs injected into context. Distinct from [tools.compression] (TACO), which applies regex-based rule compression at the executor level.

Invariants

The following ordering must hold: passthrough_threshold < summarize_threshold <= total_budget. A config where passthrough_threshold >= summarize_threshold would make the summarization path unreachable, silently producing incorrect compression behavior.

Example (TOML)

[memory.compression.acon]
enabled = true
passthrough_threshold = 2000
summarize_threshold = 4000
total_budget = 8000

Fields

enabled: bool

Enable Acon tool-result compression. Default: true.

passthrough_threshold: usize

Token count below which results pass through unchanged. Also the truncation target: results above this get char-truncated to this size. Must be < summarize_threshold. Default: 2000.

summarize_threshold: usize

Token count above which LLM summarization should be attempted before truncation. Must be > passthrough_threshold and <= total_budget. Default: 4000.

total_budget: usize

Maximum total tokens for all tool results in a single turn. Must be >= summarize_threshold. Default: 8000.

summarize_provider: ProviderName

Provider name from [[llm.providers]] for LLM summarization of large results. Falls back to the primary provider when empty. Default: "".

Implementations

impl AconConfig

pub fn validate(&self) -> Result<(), String>

Validate threshold ordering invariants after deserialization.

Returns an error string if passthrough_threshold >= summarize_threshold or summarize_threshold > total_budget.

Errors

Returns a descriptive error string when any threshold invariant is violated.

Trait Implementations

impl Clone for AconConfig

fn clone(&self) -> AconConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AconConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for AconConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for AconConfig

where AconConfig: Default,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for AconConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.