Module tools 

Extensible Tool System

Provides a trait-based abstraction for tools that can be:

• Built-in (Rust implementations)
• Binary (external executables)
• HTTP (API calls)
• Script (interpreted scripts)

Architecture

ToolRegistry
  ├── builtin tools (bash, read, write, edit, grep, glob, ls)
  ├── native tools (search_skills, install_skill, load_skill)
  └── dynamic tools (loaded from skills)
        ├── BinaryTool
        ├── HttpTool
        └── ScriptTool

Re-exports

pub use skill::builtin_skills;

pub use skill::load_skills;

pub use skill::Skill;

pub use skill::SkillKind;

pub use skill::ToolPermission;

pub use task::parallel_task_params_schema;

pub use task::task_params_schema;

pub use task::ParallelTaskParams;

pub use task::ParallelTaskTool;

pub use task::TaskExecutor;

pub use task::TaskParams;

pub use task::TaskResult;

Modules

skill

Skill System

task

Task Tool for Spawning Subagents

Structs

ToolContext

Tool execution context

ToolExecutor

Tool executor with workspace sandboxing

ToolOutput

Tool execution output

ToolRegistry

Tool registry for managing all available tools

ToolResult

Tool execution result (legacy format for backward compatibility)

Enums

ToolBackend

Tool backend type for dynamic tools

ToolStreamEvent

Events emitted by tools during execution

Constants

DEFAULT_CATALOG_THRESHOLD

Default threshold for switching to catalog mode. When the number of instruction-kind skills exceeds this, a lightweight catalog is injected instead of full content.

MAX_LINE_LENGTH

Maximum line length before truncation

MAX_OUTPUT_SIZE

Maximum output size in bytes before truncation

MAX_READ_LINES

Maximum lines to read from a file

Traits

Tool

Tool trait - the core abstraction for all tools

Functions

build_skills_injection

Build the skills injection for the system prompt.

create_tool

Create a dynamic tool from a backend specification.

Type Aliases

ToolEventSender

Sender for streaming tool output deltas during execution.