Go — 149 Operations for AI Agents

This page is the canonical reference an AI coding agent uses to refactor, query, and analyze Go code through the act MCP server. 149 operations available: 75 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.

18Query
75Refactor
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-context-parameter Add a context.Context parameter to a function
add-defer-statement Add defer statement for resource cleanup
add-error-handling Wrap function call with if err != nil error handling
add-nil-check-for-interface Add nil check before calling a method on an interface value
add-type-assertion-guard Wrap type assertion with comma-ok idiom to prevent panic
add-underscore-blank-identifier Convert unused return value to blank identifier _
change-receiver Change a method's receiver type
change-signature Change function/method signature
change-type Change symbol type annotation
change-visibility Change symbol visibility
combine Combine related declarations
delete Delete symbol and update references
encapsulate Encapsulate field with accessors
extract-class Extract methods/fields to new type
extract-constant Extract value to named constant
extract-enum-member Extract enum member value
extract-function Extract code into a new function
extract-interface Extract interface from implementation
extract-type Extract inline type into named type
extract-variable Extract expression to 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)]
flatten Flatten nested structure
generate-accessors Generate getters/setters for fields
generate-builder Generate builder pattern implementation
generate-constructor Generate constructor from fields
generate-constructor-function Generate a Go constructor function (New<Type>)
generate-documentation-comment Generate documentation comment
generate-equality-method Generate Equal() method with field comparisons
generate-equals Generate equality implementation
generate-error-method Generate Error() method (error interface)
generate-error-type Generate custom error struct with Error() method
generate-from-json Generate JSON deserialization code
generate-getters-setters Generate getter and setter methods
generate-hash Generate hash implementation
generate-impl Generate implementation from interface
generate-interface-implementation Generate interface implementation stubs
generate-iota-enum Generate enum type using iota constant generator
generate-mapped-type Generate mapped/projection type
generate-struct-stringer Generate String() method for struct (fmt.Stringer)
generate-table-driven-test Generate table-driven test pattern
generate-test-file Generate test file scaffold
generate-tests Generate unit test skeletons
generate-to-json Generate JSON serialization code
generate-to-string Generate string conversion implementation
generate-type-guard Generate type-check helper
import-add Add missing import declaration
import-alias Add alias to import declaration
import-organize Organize/sort imports
import-remove Remove unused import declaration
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 Inline symbol at all usage 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)]
introduce-field Introduce new field in type
introduce-parameter Introduce parameter in signature
introduce-variable Introduce variable for expression
move Move symbol to another file/package
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)]
pull-up Pull member up hierarchy
push-down Push member down hierarchy
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-error-assignment Convert blank error assignment to named variable
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 Rename symbol and all references
split Split large declaration into smaller parts
wrap-defer Wrap selected code in a defer statement
wrap-error Wrap selected code in error handling
wrap-error-check Wrap selected code in error check pattern
wrap-goroutine Wrap selected code in a goroutine
wrap-if Wrap code in conditional
wrap-lock Wrap critical section with lock
wrap-null-check Wrap code with nil guard
wrap-optional Wrap value in Optional
wrap-try-catch Wrap code in try/catch equivalent
wrap-using Wrap resource usage in scope guard

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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