Struct ConsoleConfig 

pub struct ConsoleConfig {

    pub context: Option<DisplayContext>,
    pub force_color: Option<bool>,
    pub force_plain: bool,
    pub show_banner: bool,
    pub show_capabilities: bool,
    pub banner_style: BannerStyle,
    pub log_level: LevelFilter,
    pub log_timestamps: bool,
    pub log_targets: bool,
    pub log_file_line: bool,
    pub traffic_verbosity: TrafficVerbosity,
    pub show_suggestions: bool,
    pub show_error_codes: bool,
    pub show_backtrace: bool,
    pub max_table_rows: usize,
    pub max_json_depth: usize,
    pub truncate_at: usize,
}

Shared configuration for FastMCP console output and host integrations.

Fields

context: Option<DisplayContext>

Override display context (None = auto-detect)

force_color: Option<bool>

Explicit color-mode override (true = rich, false = plain).

None leaves the decision to Self::context or environment detection.

force_plain: bool

Force plain text mode (no styling)

show_banner: bool

Show startup banner

show_capabilities: bool

Ask the host’s banner renderer to include its capabilities list.

ConsoleConfig stores this integration setting but does not itself render banners.

banner_style: BannerStyle

Banner display style

log_level: LevelFilter

Maximum enabled log verbosity for the host’s logging integration.

log_timestamps: bool

Ask the host’s logging integration to show timestamps.

log_targets: bool

Ask the host’s logging integration to show target modules.

log_file_line: bool

Ask the host’s logging integration to show source file and line.

traffic_verbosity: TrafficVerbosity

Traffic logging verbosity. TrafficVerbosity::None disables traffic rendering entirely.

show_suggestions: bool

Show fix suggestions for errors

show_error_codes: bool

Show error codes

show_backtrace: bool

Show explicitly captured panic backtraces.

Ordinary fastmcp_core::McpError values do not carry a captured backtrace, so this setting neither captures nor synthesizes one. It is honored by RichErrorRenderer::from_config when a backtrace is passed to RichErrorRenderer::render_panic.

max_table_rows: usize

Maximum rows in tables

max_json_depth: usize

Maximum JSON depth admitted for traffic previews before omission.

truncate_at: usize

Truncate long strings at this length

Implementations

impl ConsoleConfig

pub fn new() -> Self

Create config with defaults

pub fn from_env() -> Self

Create config from environment variables

Environment Variables

Variable	Values	Description
FASTMCP_FORCE_COLOR	(set)	Force rich output
FASTMCP_PLAIN	(set)	Force plain output
NO_COLOR	(set)	Disable colors (standard)
FASTMCP_BANNER	full/compact/minimal/none	Banner style
FASTMCP_NO_BANNER	1/true/yes	Disable the banner
FASTMCP_LOG	off/trace/debug/info/warn/error	Log level
FASTMCP_LOG_TIMESTAMPS	0/1	Show timestamps
FASTMCP_LOG_TARGETS	0/1	Show target modules
FASTMCP_LOG_FILE_LINE	0/1	Show source file and line
FASTMCP_TRAFFIC	none/summary/full	Traffic logging
RUST_BACKTRACE	1/full	Show backtraces

pub fn force_color(self, force: bool) -> Self

Set an explicit color-mode override.

Passing true forces rich output, including for non-TTY destinations. Passing false forces plain output. Leave Self::force_color as None to use the configured context or automatic detection.

pub fn plain_mode(self) -> Self

Enable plain text mode (no styling)

pub fn with_banner(self, style: BannerStyle) -> Self

Set the banner style

pub fn without_banner(self) -> Self

Disable the banner entirely

pub fn with_log_level(self, level: Level) -> Self

Set the log level

pub fn with_log_level_filter(self, level: LevelFilter) -> Self

Set the log level from a filter, including log::LevelFilter::Off.

pub fn with_traffic(self, verbosity: TrafficVerbosity) -> Self

Set traffic logging verbosity

pub fn without_suggestions(self) -> Self

Disable fix suggestions for errors

pub fn with_context(self, context: DisplayContext) -> Self

Set display context explicitly

pub fn with_max_table_rows(self, max: usize) -> Self

Set maximum table rows

pub fn with_max_json_depth(self, max: usize) -> Self

Set the maximum JSON depth admitted for traffic previews.

pub fn with_truncate_at(self, len: usize) -> Self

Set truncation length

pub fn theme(&self) -> &'static FastMcpTheme

Get the theme (uses global theme singleton)

pub fn resolve_context(&self) -> DisplayContext

Resolve the display context based on config and environment

pub fn should_use_rich(&self) -> bool

Check if rich output should be used based on resolved context

Trait Implementations

impl Clone for ConsoleConfig

fn clone(&self) -> ConsoleConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConsoleConfig

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

Formats the value using the given formatter.

impl Default for ConsoleConfig

fn default() -> Self

Returns the “default value” for a type.