Tools Reference

The Tandem Engine tool registry currently exposes the following tools.

File Operations

• read: Read file contents.
  • Input: path (string)
• write: Write file contents (overwrites).
  • Input: path (string), content (string)
• edit: String replacement in a file.
  • Input: path (string), old (string), new (string)
• glob: Find files by pattern.
  • Input: pattern (string, e.g., src/**/*.rs)

Search

• grep: Regex search in files.
  • Input: pattern (string), path (string, root directory)
• websearch: Search the web (powered by Exa.ai).
  • Input: query (string), limit (integer)
• codesearch: Semantic code search (if configured).
• memory_list: List persisted memory entries for a scope/tier.
  • Input: optional scope + filter arguments (e.g., session_id, project_id, tier, limit)
• memory_search: Search persisted memory by query and scope.
  • Input: query plus one or more scopes (e.g., session/workspace).
• memory_store: Persist memory content for session/project/global retrieval.
  • Input: content plus scope/tier arguments (e.g., session_id, project_id, tier)

Web

• webfetch: Fetch URL and return structured Markdown/JSON output.
  • Input: url (string), optional mode, return, max_bytes, timeout_ms, max_redirects
• webfetch_html: Fetch URL and return raw HTML text.
  • Input: url (string), optional max_bytes, timeout_ms, max_redirects

System

• bash: Run shell commands (PowerShell on Windows, Bash on Linux/Mac).
  • Input: command (string)
• mcp_debug: Call an MCP tool directly.
• todo_write: Update the Todo/task list.
  • Aliases: todowrite, update_todo_list
• task: Update the current task status.
• question: Ask a structured question to the user and wait for input.
• spawn_agent: Spawn an agent-team worker instance (runtime/policy gated).
  • Input: mission/spawn payload (e.g., missionID, role, templateID, source)
• teamcreate: Create/register an agent-team context for coordinated teammate tasks.
  • Input: team metadata (e.g., team_name, description, agent_type)
• taskcreate: Create teammate task records in a team context.
  • Input: task payload (e.g., team_name, name, description)
• taskupdate: Update teammate task status/notes/progress in a team context.
  • Input: task update payload (e.g., team_name, task_id, status, notes)
• tasklist: List tasks for a team context.
  • Input: optional filters (e.g., team_name, status filter)
• sendmessage: Send mailbox-style message/task prompt to one or more teammates.
  • Input: message payload (e.g., team_name, to, content, summary)

Specialized

• skill: Execute a skill.
• apply_patch: Apply a unified diff patch.
• batch: Execute multiple tools in a batch.
• lsp: Interact with the Language Server Protocol.