// MCP TOOL REFERENCE

AST EDITOR TOOLS

59 tools from the Ast Editor MCP Server, categorised by risk level.

// ALL 59 AST EDITOR TOOLS

READ 13 tools

Read find_in_notebook find_in_notebook Read find_in_rmd Case-sensitive substring search across all cell sources. Read find_references find_references Read get_cell get_cell Read get_chunk_options Return the chunk's language, label, and all key=value options. Read get_frontmatter Return the YAML frontmatter as a formatted YAML string. Read get_kernel_state get_kernel_state Read get_outputs get_outputs Read list_cells list_cells Read list_notebook_symbols list_notebook_symbols Read list_symbols list_symbols Read read_imports read_imports Read read_symbol read_symbol

WRITE 30 tools

Write clear_execution_counts clear_execution_counts Write add_cell add_cell Write add_field add_field Write add_import add_import Write add_import_name add_import_name Write add_key add_key Write add_method add_method Write add_parameter add_parameter Write add_top_level add_top_level Write append_to_array append_to_array Write append_to_cell append_to_cell Write create_notebook create_notebook Write create_rmd create_rmd Write edit_leading_comment edit_leading_comment Write insert_in_body insert_in_body Write insert_sibling insert_sibling Write merge_cells merge_cells Write move_cell Move a cell from one index to another. Other cells shift to accommodate. Write prepend_to_cell prepend_to_cell Write replace_cell_source replace_cell_source Write replace_docstring replace_docstring Write replace_function replace_function Write replace_function_body replace_function_body Write replace_in_body replace_in_body Write replace_signature replace_signature Write replace_value replace_value Write set_cell_metadata set_cell_metadata Write set_chunk_option set_chunk_option Write set_frontmatter_key set_frontmatter_key Write split_cell split_cell

DESTRUCTIVE 11 tools

Destructive clear_outputs clear_outputs Destructive delete_cell delete_cell Destructive delete_in_body delete_in_body Destructive delete_key delete_key Destructive delete_symbol delete_symbol Destructive remove_chunk_option Remove one chunk option. Use key="label" to clear the chunk label. Destructive remove_from_array remove_from_array Destructive remove_frontmatter_key Remove one top-level YAML frontmatter key. Destructive remove_import remove_import Destructive remove_import_name remove_import_name Destructive remove_parameter remove_parameter

EXECUTE 5 tools

Execute execute_all_cells execute_all_cells Execute execute_cell execute_cell Execute restart_kernel restart_kernel Execute interrupt_kernel interrupt_kernel Execute shutdown_kernel shutdown_kernel

// FAQ

How many tools does the Ast Editor MCP server have? +

The Ast Editor MCP server exposes 59 tools across 4 categories: Read, Write, Destructive, Execute.

How do I enforce policies on Ast Editor tools? +

Route the Ast Editor server through the PolicyLayer gateway. Define allow, deny, or approval rules per tool in the dashboard; they are enforced on every call before it reaches the server.

What risk categories do Ast Editor tools fall into? +

Ast Editor tools are categorised as Read (13), Write (30), Destructive (11), Execute (5). Each category has a recommended default policy.

Enforce policy on every Ast Editor tool call.

Start from Ast Editor, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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