Struct ReviewConfig 

pub struct ReviewConfig {
    pub max_prompt_chars: usize,
    pub max_full_content_files: usize,
    pub max_chars_per_file: usize,
    pub max_diff_chars: usize,
    pub max_patch_chars_per_file: usize,
    pub max_instructions_chars: usize,
    pub instructions_file: Option<String>,
    pub min_budget_for_call_graph: usize,
    pub max_dep_release_chars: usize,
    pub max_dep_packages: usize,
}

PR review prompt configuration.

Controls prompt token budgets and GitHub API constraints for PR reviews:

• max_prompt_chars: 120,000 chars is a conservative budget below common LLM context window limits (e.g., 128k token models), accounting for system prompt and response overhead.
• max_full_content_files: 10 files caps GitHub Contents API calls per review to limit latency and rate limit usage.
• max_chars_per_file: 32,000 chars per file gives adequate context for most files without dominating the prompt budget; budget drop logic trims below 120k if needed.
• max_instructions_chars: 1,500 chars caps repository instructions to prevent prompt bloat.
• max_diff_chars: 200,000 chars caps the total diff content across all files in the prompt.
• max_patch_chars_per_file: 25,000 chars caps each individual file patch before dropping it entirely.

Fields

max_prompt_chars: usize

Maximum total prompt character budget (default: 120_000).

max_full_content_files: usize

Maximum number of files to fetch full content for (default: 10).

max_chars_per_file: usize

Maximum characters per file’s full content (default: 32_000).

max_diff_chars: usize

Maximum total diff characters across all files in the prompt (default: 200_000).

max_patch_chars_per_file: usize

Maximum characters per individual file patch before the patch is dropped entirely (default: 25_000).

max_instructions_chars: usize

Maximum characters for repository instructions (default: 1_500).

instructions_file: Option<String>

Optional path to repository instructions file (overrides default AGENTS.md and .github/instructions/pr-review.md).

min_budget_for_call_graph: usize

Minimum remaining prompt budget to auto-enable call graph (default: 20_000).

The call graph is built only when: budget_remaining = max_prompt_chars - estimated_size (call_graph excluded) and budget_remaining > min_budget_for_call_graph.

A value >= max_prompt_chars means call graph is never auto-enabled. A value > max_prompt_chars / 2 means call graph is only built for the largest diffs — consider lowering the threshold.

max_dep_release_chars: usize

Maximum characters for dependency release notes (default: 2_000).

max_dep_packages: usize

Maximum number of dependency packages to enrich (default: 3).

Implementations

impl ReviewConfig

pub fn validate_consistency(&self) -> Vec<String>

Validate internal consistency of review configuration.

Returns a list of warning strings for any misconfigured values. The caller should emit these warnings via tracing::warn! or similar.

Trait Implementations

impl Clone for ReviewConfig

fn clone(&self) -> ReviewConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReviewConfig

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

Formats the value using the given formatter.

impl Default for ReviewConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ReviewConfig

where ReviewConfig: 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 ReviewConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.