Gleam — 125 Operations for AI Agents

This page is the canonical reference an AI coding agent uses to refactor, query, and analyze Gleam 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-explicit-parameter`	Add explicit parameter (vs. closure capture)
`add-missing-case-pattern`	Add wildcard pattern to an incomplete case expression
`add-missing-import`	Add import for external reference
`add-type-annotation`	Add explicit return type annotation to a function
`convert-case-to-if-let`	Convert case expression to if-let where applicable
`convert-manual-filter-to-pipe`	Convert nested filter call to pipeline
`convert-manual-map-to-pipe`	Convert nested map call to pipeline
`convert-record-update-syntax`	Convert manual record copies to Gleam record update syntax
`convert-string-concatenation`	Convert ++ string concatenation to string interpolation
`convert-string-interpolation`	Convert string interpolation to concatenation
`convert-to-anonymous-function`	Convert named function to anonymous (where applicable)
`convert-to-named-function`	Convert anonymous function to named function
`convert-to-option`	Convert function to return Option type
`extract-function`	Extract code block into a new function with parameter inference
`extract-variable`	Extract expression into 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)]
`generate-case-branches`	Generate all case branches for a type
`generate-comparison-functions`	Generate Eq/Ord implementations
`generate-custom-type-stub`	Generate a custom type definition stub
`generate-formatter-function`	Generate formatter from type
`generate-function-body`	Generate function implementation from signature
`generate-function-stub`	Generate function signature with placeholder body
`generate-import-statement`	Generate an import statement for a module
`generate-option-handler`	Generate Some/None case handler pattern
`generate-pattern-match`	Generate an exhaustive case expression for a type
`generate-record-accessor`	Generate field accessor function for record
`generate-result-handler`	Generate Ok/Error case handler pattern
`generate-test-case`	Generate individual test function
`generate-type-getters`	Generate field getter functions for record type
`generate-type-setters`	Generate field setter functions for record type
`generate-unit-test-scaffold`	Generate test module structure
`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 call to its implementation
`inline-variable`	Inline a local variable binding
`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-type-alias`	Create type alias for complex type
`invert-case-condition`	Invert case/pattern match condition (swap branches)
`merge-cases`	Merge consecutive case branches with identical bodies
`move-function-to-module`	Move function to different module
`move-type-to-module`	Move type definition to different module
`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`	Sort and organize import statements
`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
`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-field`	Rename a record field across all usage sites
`rename-identifier`	Rename a variable, function, or constant across all references
`rename-module`	Rename a module and update all imports
`rename-type`	Rename a custom type, record, or type alias across module
`split-case`	Split case expression into multiple branches

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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