Struct Config 

pub struct Config {

    pub project_root: Option<PathBuf>,
    pub validation_depth: u32,
    pub checkpoint_ttl_hours: u32,
    pub max_symbol_depth: u32,
    pub formatter_timeout_secs: u32,
    pub type_checker_timeout_secs: u32,
    pub format_on_edit: bool,
    pub validate_on_edit: Option<String>,
    pub formatter: HashMap<String, String>,
    pub checker: HashMap<String, String>,
    pub restrict_to_project_root: bool,
    pub search_index: bool,
    pub semantic_search: bool,
    pub experimental_bash_rewrite: bool,
    pub experimental_bash_compress: bool,
    pub experimental_bash_background: bool,
    pub max_background_bash_tasks: usize,
    pub bash_permissions: bool,
    pub search_index_max_file_size: u64,
    pub max_callgraph_files: usize,
    pub semantic: SemanticBackendConfig,
    pub experimental_lsp_ty: bool,
    pub lsp_servers: Vec<UserServerDef>,
    pub disabled_lsp: HashSet<String>,
    pub lsp_paths_extra: Vec<PathBuf>,
    pub lsp_auto_install_binaries: HashSet<String>,
    pub lsp_inflight_installs: HashSet<String>,
    pub storage_dir: Option<PathBuf>,
    pub diagnostic_cache_size: usize,
}

Fields

project_root: Option<PathBuf>

Root directory of the project being analyzed. None if not scoped.

validation_depth: u32

How many levels of call-graph edges to follow during validation (default: 1).

checkpoint_ttl_hours: u32

Hours before a checkpoint expires and is eligible for cleanup (default: 24).

max_symbol_depth: u32

Maximum depth for recursive symbol resolution (default: 10).

formatter_timeout_secs: u32

Seconds before killing a formatter subprocess (default: 10).

type_checker_timeout_secs: u32

Seconds before killing a type-checker subprocess (default: 30).

format_on_edit: bool

Whether to auto-format files after edits (default: true).

validate_on_edit: Option<String>

Whether to auto-validate files after edits (default: false). When “syntax”, only tree-sitter parse check. When “full”, runs type checker.

formatter: HashMap<String, String>

Per-language formatter overrides. Keys: “typescript”, “python”, “rust”, “go”. Values: “biome”, “prettier”, “deno”, “ruff”, “black”, “rustfmt”, “goimports”, “gofmt”, “none”.

checker: HashMap<String, String>

Per-language type checker overrides. Keys: “typescript”, “python”, “rust”, “go”. Values: “tsc”, “biome”, “pyright”, “ruff”, “cargo”, “go”, “staticcheck”, “none”.

restrict_to_project_root: bool

Whether to restrict file operations to within project_root (default: false). When true, write-capable commands reject paths outside the project root.

search_index: bool

Enable the trigram search index (default: false).

semantic_search: bool

Enable semantic search (default: false).

experimental_bash_rewrite: bool

Enable experimental bash command rewriting (default: false).

experimental_bash_compress: bool

Enable experimental bash command compression (default: false).

experimental_bash_background: bool

Enable experimental bash background execution (default: false).

max_background_bash_tasks: usize

Maximum number of background bash tasks allowed to run concurrently (default: 8).

bash_permissions: bool

Enable OpenCode-style bash permission prompts (default: false).

search_index_max_file_size: u64

Maximum file size to fully index in bytes (default: 1MB).

max_callgraph_files: usize

Maximum number of source files allowed for call-graph operations (callers, trace_to, trace_data, impact). When a project exceeds this count the reverse index is not built and those commands return a project_too_large error. Does not affect grep, glob, read, edit, or other non-callgraph features. Default: 5_000 (matches measured per-op cost ceilings; raise for very large projects if you accept multi-minute per-call latency).

semantic: SemanticBackendConfig

experimental_lsp_ty: bool

Enable Astral ty as an experimental Python LSP server (default: false).

lsp_servers: Vec<UserServerDef>

User-defined LSP servers registered by the OpenCode plugin.

disabled_lsp: HashSet<String>

Lowercase LSP server IDs disabled by user config.

lsp_paths_extra: Vec<PathBuf>

Extra directories to search when resolving LSP binaries. The plugin populates these from its own auto-install cache (e.g. ~/.cache/aft/lsp-packages/<pkg>/node_modules/.bin/) so a binary AFT installed itself is discoverable without needing it on PATH. Resolution order: <project_root>/node_modules/.bin/<bin> → lsp_paths_extra/<bin> (in order) → PATH via which.

lsp_auto_install_binaries: HashSet<String>

Binary names the hosting plugin knows how to auto-install.

Built-in LSPs discovered from files only emit missing-binary warnings when their binary is in this set. User-configured lsp_servers keep warning unconditionally.

lsp_inflight_installs: HashSet<String>

Binary names with plugin-managed auto-installs currently in flight.

Missing-binary warnings are suppressed while the install is actively running; install failure reporting is handled by the plugin after the background work settles.

storage_dir: Option<PathBuf>

Persistent storage directory for indexes (trigram, semantic). Set by the plugin to the XDG-compliant path (e.g. ~/.local/share/opencode/storage/plugin/aft/). Falls back to ~/.cache/aft/ if not set.

diagnostic_cache_size: usize

Maximum number of (server, file) entries kept in the in-memory diagnostic cache. Older entries are evicted in LRU order when the cap is exceeded. Set to 0 to disable the cap entirely. Default: 5000 (covers very large monorepos with bounded memory).

Implementations

impl Config

pub fn semantic_backend_label(&self) -> &'static str

Trait Implementations

impl Clone for Config

fn clone(&self) -> Config

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Config

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

Formats the value using the given formatter.

impl Default for Config

fn default() -> Self

Returns the “default value” for a type.