List bundled blank CX-Programmer project templates available for native-structure project creation.

Create a new offline CX-Programmer project session from a native CXT/CXP template.

Use a bundled template_id for supported CPUs. For maximum fidelity with another CPU or CX-Programmer release, create one blank project in CX-Programmer and pass its .CXT/.CXP as template_path. The MCP clones the opaque PLC setup/I/O/unit configuration from that native template and blanks only the program surfaces. Optionally saves the new project as .CXT immediately.

Load a CX-Programmer .CXP or .CXT into an offline, in-memory editing session.

The input file is never modified. Set CX_MCP_ALLOWED_ROOTS to restrict filesystem access.

Discard an in-memory project session without writing changes.

Return revision, dirty state, undo/redo depth, and program-scope integrity.

Return PLC identity and the program/section tree without PLC setup payloads.

List programs and their section names.

Return AI-friendly program context: ladder, comments, symbols and optional rung analysis.

List sections and rung counts for one program.

Read rungs from one section. structured=true adds read/write and boolean-expression analysis.

Parse one rung into structured mnemonic, boolean AST, reads/writes, stateful writes, timers and counters.

Evaluate the supported boolean mnemonic subset for reasoning/testing only, not PLC-cycle simulation.

Search mnemonic text, addresses, comments, and global/local symbols.

Find every program reference to an address and classify it as read/write/coil/set/reset.

Report duplicate coils, mixed writes, SET/RSET imbalance, unused symbols, and unclassified instructions.

Compile a boolean AST into CX mnemonic using LD/AND LD/OR LD plus OUT/SET/RSET outputs.

This is a preview and does not edit a project.

Replace one rung using CX-Programmer mnemonic lines. Revision guard prevents stale edits.

Replace a rung from a structured boolean expression instead of raw mnemonic text.

Insert a mnemonic rung at a zero-based rung index.

Insert a rung compiled from a structured boolean expression.

Delete one rung and repair CX-Programmer rung indexes/counts.

Set the comment attached to one rung.

Create a program section, normally immediately before END.

Rename one program section.

Delete a section. END is protected.

List global or local CX-Programmer symbols/address comments.

Create or update a global/local program symbol without touching PLC setup or I/O tables.

Delete a symbol-table entry by address.

Apply multiple program-only edits atomically; any failing operation rolls the entire patch back.

Preview a first-press-wins latch recipe using SET/RSET; does not edit a project.

Replace a non-END section with a first-press-wins SET/RSET latch program plus one trailing empty rung.

Undo the last in-memory edit without touching disk.

Redo the last undone in-memory edit.

Run CXT structural checks, protected-scope integrity checks, and ladder diagnostics.

Show a unified CXT diff of pending edits versus the loaded project.

Return program-only semantic JSON suitable for AI review or external versioning.

Validate and save edited source as CXT. Source overwrite is refused unless explicitly allowed.

Save a CXT and open it in locally installed CX-Programmer on Windows.

This never performs GUI automation, online edit, PLC download, force-set/reset, or mode changes.