Tools

Code intelligence

Structured code tools reason about syntax and runtime state instead of treating source as undifferentiated text.

AST search and rewrite

ast_search finds syntax-shaped matches with metavariables. ast_rewrite applies one-language structural transformations where text replacement would confuse shadowing, formatting, or nested syntax.

Debug sessions

debug_session owns debugger lifecycle. debug_request performs breakpoints, stepping, stack inspection, scopes, variables, evaluation, and supported memory operations through the active adapter.

Choose by invariant

Exact prose or literal	Use bounded text search.
Language construct	Use AST search or rewrite.
Exported symbol	Use the available semantic language-service capability and inspect references before rename.
Runtime value or control flow	Use a debugger session.