WGSL — 129 Operations for AI Agents

This page is the canonical reference an AI coding agent uses to refactor, query, and analyze WGSL code through the act MCP server. 129 operations available: 55 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.

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18Query
55Refactor
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-explicit-type-annotation Add an explicit type annotation to a declaration
add-function-attribute Add a @vertex/@fragment/@compute attribute to a function
add-function-parameter Add a new typed parameter to a function signature
add-location-attribute Add @location(N) attribute to a struct member
add-missing-break-statement Add a missing break statement to a switch case
add-return-type-annotation Add an explicit return type annotation to a function
add-workgroup-size-attribute Add @workgroup_size attribute to a compute function
change-storage-qualifier Change the storage qualifier of a var declaration
convert-const-to-var Convert a const declaration to var
convert-for-loop-to-loop Convert a for loop to an infinite loop with break
convert-if-to-switch Convert an if-else chain to a switch statement
convert-loop-for-to-while Convert a for loop to a while loop
convert-loop-while-to-for Convert a while loop to a for loop
convert-var-to-const Convert a var declaration to const
convert-var-to-let Convert a local var declaration to let
extract-constant Extract an expression into a named constant
extract-function Extract lines into a new WGSL function
extract-magic-number-to-const Extract a magic number literal into a named constant
extract-variable Extract an expression into a named local variable
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-compute-shader-skeleton Generate a complete @compute shader function skeleton
generate-conditional-template Generate an if/if-else conditional template
generate-fragment-shader-skeleton Generate a complete @fragment shader function skeleton
generate-function-body Generate a function stub with return type placeholder
generate-function-call-template Generate a call expression template for a function
generate-loop-structure Generate a for, while, or loop structure template
generate-storage-binding Generate a @group/@binding var<storage> declaration
generate-storage-buffer-struct Generate a storage buffer struct with @group/@binding declaration
generate-struct-initializer Generate a constructor helper function for a struct
generate-struct-member-getter Generate a getter function for a struct member
generate-struct-member-setter Generate a setter function for a struct member via pointer
generate-switch-statement Generate a switch statement template with cases
generate-uniform-binding Generate a @group/@binding var<uniform> declaration
generate-uniform-buffer-struct Generate a uniform buffer struct with @group/@binding declaration
generate-vertex-shader-skeleton Generate a complete @vertex shader function skeleton
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-function Inline a function body at the call site
inline-variable Inline a variable's value at its use sites
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)]
invert-if-condition Invert the condition of an if statement
move-variable-declaration Move a variable declaration closer to its first use
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-explicit-type-annotation Remove an explicit type annotation from a declaration
remove-unreachable-code Remove code that is unreachable after a return statement
remove-unused-function-parameter Remove an unused parameter from a function signature
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-function Rename a function and all its call sites
rename-struct Rename a struct type across the file
rename-struct-member Rename a struct member field
rename-variable Rename a variable across the file
reorder-function-parameters Reorder parameters in a function signature
simplify-boolean-expression Simplify redundant boolean comparisons
simplify-if-statement Simplify redundant patterns in an if statement condition

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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