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agents.writerslogic.com

Checks one SQL string (up to 20000 characters; PostgreSQL, MySQL, SQLite or generic) before an agent executes it: exactly one statement, read-only (SELECT/VALUES/SHOW/EXPLAIN without side effects), and every table it reads or writes on a caller allowlist. Tokenizer-level: comments, string literals, quoted identifiers and dollar quoting cannot hide a second statement; reports statement kind, referenced tables after FROM/JOIN/INTO/UPDATE, SELECT INTO, locking reads, writable CTEs and known side-effect functions. Returns unsupported for constructs it cannot classify and for any transpile request; it is not a full SQL parser and does not prove a query safe (a user-defined function may write).