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Built-In Tools Overview

OpenJarvis includes 49 production-ready tools organized into 9 functional modules. Models automatically invoke these tools using standard function calling.

Tool Categories

Module Count Available Tools
Date & Time 4 get_current_datetime, date_arithmetic, format_datetime, days_between
Math 4 evaluate_expression, convert_units, solve_equation, prime_factorize
File I/O 9 read_file, write_file, list_directory, search_in_files, file_info, delete_file, search_dir, search_file, find_file
Web 5 fetch_url, search_web, fetch_wikipedia, http_request, parse_openapi_spec
Code Execution 4 run_python, run_shell, lint_python, run_pytest
Data Processing 6 parse_json, jq_query, parse_csv, regex_search, regex_replace, sql_query
Session & Memory 10 save_memory, read_memory, update_memory, delete_memory, list_memories, search_memories, store_note, recall_note, list_notes, delete_note
Code Editor & Terminal 3 str_replace_editor, execute_bash, bash
Git & Version Control 4 git_diff, git_status, git_log, apply_patch

Total: 49 Built-in Tools

How Tool Calling Works

  1. Automatic Detection: When a user's request requires calculations, web lookups, or file inspection, the active model outputs a structured tool call.
  2. Execution & Feedback: OpenJarvis runs the tool locally (sandboxed subprocess for code, safe AST evaluator for math) and returns the result to the model.
  3. Synthesis: The model uses the tool output to complete its answer and returns it to you.
oj> What's the square root of 1764 plus 58?

  ↳ routing: generalist → math
  ⚙ tool: evaluate_expression {"expression": "1764**0.5 + 58"}
    → 100.0

The square root of 1764 (42) plus 58 is **100**.

Tool Safety & Guardrails

  • Math Evaluation (evaluate_expression): Evaluates math expressions safely using AST parsing (no eval() or code execution).
  • Code Execution (run_python, run_shell): Runs in isolated subprocesses with strict timeouts (10-15 seconds) and a 4KB output truncation buffer.
  • Web Fetching (fetch_url): Strips scripts and style tags, truncating text to 8KB.
  • File System (file_tools): Safe file reading/writing scoped to your workspace.

Explore Detailed Tool Manuals