Struct CommandContext 

pub struct CommandContext {

    pub session_cost_usd: f64,
    pub session_input_tokens: u64,
    pub session_output_tokens: u64,
    pub session_turns: u32,
    pub workspace: PathBuf,
    pub help_text: String,
    pub session_approved_tools: HashSet<String>,
    pub permission_mode: PermissionMode,
    pub memory_dir: PathBuf,
    pub provider_name: String,
    pub model_name: String,
    pub model_override: Option<String>,
    pub data_dir: PathBuf,
    pub message_count: usize,
    pub tool_call_count: usize,
    pub tools_count: usize,
    pub hooks_count: usize,
    pub skill_names: Vec<String>,
    pub nous_scores: Vec<(String, f64)>,
    pub budget_usd: Option<f64>,
    pub economic_mode: Option<String>,
    pub workspace_journal_status: Option<String>,
    pub project_instructions_tokens: usize,
    pub git_context_tokens: usize,
    pub memory_index_tokens: usize,
    pub workspace_context_tokens: usize,
    pub skills_catalog_tokens: usize,
    pub show_reasoning: bool,
    pub context_ruling: Option<String>,
    pub context_window: Option<usize>,
    pub identity_tier: Option<String>,
    pub identity_subject: Option<String>,
}

Mutable context passed to every command invocation.

Fields

session_cost_usd: f64

Accumulated cost in USD for this session.

session_input_tokens: u64

Input tokens consumed this session.

session_output_tokens: u64

Output tokens consumed this session.

session_turns: u32

Number of user turns in this session.

workspace: PathBuf

Workspace root directory.

help_text: String

Pre-rendered help text (set by the registry).

session_approved_tools: HashSet<String>

Tools the user has permanently approved for this session (via “always” response).

permission_mode: PermissionMode

Permission mode: “default” (prompt), “yes” (auto-approve all), “plan” (deny all writes).

memory_dir: PathBuf

Directory for persistent agent memory files (.arcan/memory/).

provider_name: String

Provider name (e.g. “anthropic”, “openai”, “mock”).

model_name: String

Current model name (e.g. “claude-sonnet-4-20250514”).

model_override: Option<String>

Model override requested via /model command (applied on next turn).

data_dir: PathBuf

Data directory for persistent storage (.arcan/).

message_count: usize

Number of messages in the conversation history.

tool_call_count: usize

Number of tool calls executed this session.

tools_count: usize

Number of registered tools.

hooks_count: usize

Number of registered hooks.

skill_names: Vec<String>

Names of discovered skills.

nous_scores: Vec<(String, f64)>

Latest Nous evaluation scores: (evaluator_name, score_value).

budget_usd: Option<f64>

Session budget in USD (set via --budget). None means unlimited.

economic_mode: Option<String>

Autonomic economic mode label (e.g. “Sovereign”, “Conserving”). Populated when ARCAN_AUTONOMIC_URL is configured.

workspace_journal_status: Option<String>

Workspace journal status string (e.g. path or “unavailable”). Set when a shared Lance workspace journal is opened.

project_instructions_tokens: usize

Estimated tokens for project instructions (CLAUDE.md, AGENTS.md, docs/).

git_context_tokens: usize

Estimated tokens for git context section.

memory_index_tokens: usize

Estimated tokens for MEMORY.md index.

workspace_context_tokens: usize

Estimated tokens for shared workspace journal context.

skills_catalog_tokens: usize

Estimated tokens for skills catalog.

show_reasoning: bool

Whether to display reasoning/thinking tokens in the output.

context_ruling: Option<String>

Current Autonomic context ruling (e.g. “Breathe — pressure 42%, quality 0.85, …”).

context_window: Option<usize>

Context window size in tokens (from provider).

identity_tier: Option<String>

Identity tier label (e.g. “pro”, “free”, “anonymous”).

identity_subject: Option<String>

Identity subject (e.g. “user@example.com”).

Trait Implementations

impl Debug for CommandContext

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

Formats the value using the given formatter.

impl Default for CommandContext

fn default() -> CommandContext

Returns the “default value” for a type.