Elixir — 125 Operations for AI Agents

This page is the canonical reference an AI coding agent uses to refactor, query, and analyze Elixir code through the act MCP server. 125 operations available: 51 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

51Refactor

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-alias`	Add module alias for fully-qualified reference
`add-default-argument`	Add default value to function parameter
`add-enum-function`	Replace manual iteration with Enum function
`add-function-documentation`	Add @doc documentation to an existing function
`add-guard-clause`	Add guard clause to function definition
`add-import`	Add missing import for undefined function
`add-module-documentation`	Generate @moduledoc comment for module
`add-nil-guard`	Add nil guard for function parameter
`add-string-module-function`	Replace manual string operations with String module
`add-type-specification`	Add @spec type annotation to an existing function
`convert-if-to-unless`	Convert if-with-not-condition to unless
`convert-string-interpolation`	Convert string concatenation to string interpolation
`convert-to-list-comprehension`	Convert loop to list comprehension
`convert-to-map-comprehension`	Convert loop to map comprehension
`convert-to-pipe`	Convert chained function calls to pipe operator
`extract-function`	Extract code into a new function
`extract-variable`	Extract expression into a named variable binding
`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-pipe`	Flatten nested pipe operations into single chain
`generate-behavior-impl`	Generate behavior callback implementation
`generate-constructor`	Generate function to create struct
`generate-function`	Generate function stub with @doc and @spec
`generate-function-doc`	Generate @doc documentation for function
`generate-getter`	Generate getter function for struct field
`generate-module`	Generate new module with doc and boilerplate
`generate-module-doc`	Generate @moduledoc for module
`generate-protocol-impl`	Generate protocol implementation stub
`generate-setter`	Generate setter function for struct field
`generate-spec`	Generate @spec type annotation for function
`generate-struct`	Generate struct definition with fields
`generate-test-case`	Generate test case with setup fixtures
`generate-test-module`	Generate ExUnit test file scaffold
`generate-type`	Generate @type definition
`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 function call at all use sites
`inline-variable`	Inline variable references at all 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-conditional`	Invert the condition of an if expression
`merge-conditions`	Merge nested conditions into a single compound condition
`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)]
`organize-imports`	Group and sort imports and aliases
`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-import`	Remove unused module import or alias
`remove-unused-module-attribute`	Remove @attribute that is never used
`remove-unused-variable`	Remove variable binding that is never used
`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 identifier across all references
`simplify-boolean-logic`	Remove redundant boolean operations
`simplify-conditional`	Remove redundant conditions in if-else
`simplify-pipe`	Simplify pipe operations by removing unnecessary intermediate steps

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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