VHDL — 111 Operations for AI Agents

This page is the canonical reference an AI coding agent uses to refactor, query, and analyze VHDL code through the act MCP server. 111 operations available: 37 refactor, 18 query, 42 analysis, 14 verification. Each operation is callable from Claude Code, Cursor, Codex, OpenCode, or any MCP-compatible agent host. Click any operation for a stable anchor link suitable for citation.

Premium language. Operations on VHDL require an Elite license or above. See pricing.

18Query

37Refactor

42Analysis

14Verify

Query

18 query tools, the same on every supported language. Descriptions live in the shared reference: /docs/query-tools.

callers control_flow data_flow definition diagnostics effect_closure effect_summary fix_auto get_type graph import_organize interface mutations references repo_outline skeleton symbols symbols_batch

Refactor

Operation	Description
`add-generic-to-entity`	Add a new generic parameter to an entity
`add-port-to-entity`	Add a new port declaration to an entity and wire it through architecture
`add-sensitivity-list`	Add missing sensitivity list signals to a process (detect all RHS signal reads)
`convert-case-to-if`	Convert case statement to if-elsif chain
`convert-constant-to-variable`	Convert constant to variable if reassignment is needed
`convert-for-to-while`	Convert for loop to equivalent while loop
`convert-if-to-case`	Convert if-elsif chain to case statement
`convert-variable-to-constant`	Change a variable to constant if never reassigned after initialization
`convert-while-to-for`	Convert while loop with counter to for loop
`expand-port-mapping`	Convert positional port map to named port map for clarity
`extract-constant-from-literal`	Replace magic numbers/strings with named constants
`extract-function`	Extract expressions into a new function (pure or impure based on side effects)
`extract-procedure`	Extract a sequence of statements into a new procedure with inferred parameters
`extract-signal`	Extract a computed expression into a signal (for concurrent assignments)
`extract-variable`	Extract a computed expression into a local variable with type inference
`extract_function`	Extract a code selection into a new function — automatically infers parameters, return types, and inserts the call site. Use instead of manually cutting/pasting code. Works without LSP; LSP improves type inference. Params: file (string), new_name (string), start_line (u32), start_column (u32), end_line (u32), end_column (u32) [, preview (bool), receipt (bool)]
`extract_variable`	Extract an expression into a named variable — inserts the declaration and replaces the expression with the variable name. Works without LSP. Params: file (string), new_name (string), start_line (u32), start_column (u32), end_line (u32), end_column (u32) [, preview (bool)]
`generate-architecture-skeleton`	Create architecture body with placeholder for entity
`generate-comparison-functions`	Create comparison operators (=, <, >, <=, >=) for custom types
`generate-entity-from-architecture`	Create entity declaration from architecture ports and generics
`generate-library-clause`	Add library and use declarations for standard libraries
`generate-process-template`	Create a new process with sensitivity list template
`generate-test-bench`	Create test bench entity and architecture for simulation
`inline`	Inline a variable, function, or method — replace every usage with its definition body, then remove the original. The inverse of extract. Works without LSP (single-file); LSP enables cross-file inlining. Params: file (string), symbol (string) [, line (u32), preview (bool), receipt (bool)]
`inline-constant`	Replace constant reference with its literal value
`insert_body`	Replace a function's implementation body with new code. AST-validated — rejects if the result has parse errors, so you can't accidentally break syntax. Use instead of manual text editing for function rewrites. Params: file (string), symbol (string), code (string) [, commit (bool)]
`move-declaration-closer`	Move variable/signal declaration closer to first usage
`move_symbol`	Move a function, class, or type to a different file and automatically update all imports across the codebase. Use instead of manually cut/paste + fixing imports. Works without LSP (single-file); LSP enables cross-file import updates. Params: file (string), symbol (string), destination (string) [, preview (bool), receipt (bool)]
`recipe_run`	Run a codemod recipe: declarative match → transform → optional verify across modeled grammars. Preview lists matches; apply writes with optional E7 receipts and all-or-nothing rollback. Returns a per-site report.
`remove-unused-port`	Remove an unused port from entity and all instantiations
`rename`	Rename a symbol and automatically update ALL references across the codebase. Safer and faster than find-and-replace — AST-aware, won't rename strings or comments. Works without LSP (single-file); LSP enables cross-file renames. Params: file (string), old_name (string), new_name (string) [, line (u32), column (u32), preview (bool), receipt (bool)]
`rename-architecture`	Rename an architecture body and update instantiations
`rename-generic`	Rename a generic parameter and update instantiations
`rename-identifier`	Rename signal, variable, entity, port, generic, procedure, or function across all references
`rename-package`	Rename a package and update all use clauses
`rename-port`	Rename an entity port and update all instantiations
`rename-signal`	Rename a signal and update all assignments and references

Analysis

42 analysis tools, the same on every supported language. Descriptions live in the shared reference: /docs/analysis-tools.

analyze_api_diff analyze_chokepoints analyze_clones analyze_clusters analyze_cohesion analyze_conformance analyze_coupling analyze_cycle_risk analyze_cycles analyze_dead_code analyze_depth analyze_entry_points analyze_export analyze_extraction analyze_fan_balance analyze_features analyze_hotspots analyze_impact analyze_inconsistencies analyze_inheritance analyze_interface_bloat analyze_interfaces analyze_layers analyze_orphan_types analyze_patterns analyze_platform_deps analyze_readiness analyze_roles analyze_seams analyze_stability analyze_surface analyze_test_gaps analyze_thickness analyze_type_completeness churn_hotspots co_change_clusters coverage_overlay ownership_map profile_overlay simulate split_module trace_overlay

Verify

14 verify tools, the same on every supported language. Descriptions live in the shared reference: /docs/verification.

bisect_regression gate generate_test_harness scan secret_surface summarize_pr taint_flow unsafe_surface verify_behavioral_equivalence verify_contract_preserved verify_diff_semantics verify_port_parity verify_side_effects verify_test_impact

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