Leo — 129 Operations for AI Agents

Leo programs compile to zero-knowledge circuits on Aleo, where privacy is the default. act101 navigates transitions, records, and mappings structurally, so agents review private-by-design logic precisely.

This page is the canonical reference an AI coding agent uses to refactor, query, and analyze Leo 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.

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

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-finalize-block Add a finalize block to a Leo transition
add-input-record Add a record input parameter to a Leo transition
add-mapping-entry Add a Leo mapping declaration to the program
add-output-record Add a record output type to a Leo transition
add-owner-field Add an owner field to a Leo record
add-parameter Add a parameter to a Leo function and direct calls
add-record-field Add a field to a Leo record
convert-closure-to-function Convert a Leo inline helper to a function
convert-mapping-to-records Replace Leo mapping storage with a record
convert-private-to-public Convert a Leo private transition parameter to public
convert-public-to-private Convert a Leo public transition parameter to private
convert-record-to-struct Convert a Leo record to a struct
convert-struct-to-record Convert a Leo struct to a record
convert-to-circuit Extract Leo verification logic into a circuit helper
convert-to-mapping Convert struct-based Leo storage to a mapping
extract-function Extract selected Leo lines into a helper function
extract-struct Extract selected Leo struct fields into a new struct
extract-to-closure Extract selected Leo code into an inline helper
extract-transition Extract selected Leo code into a transition
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)]
fix-mapping-access-error Fix Leo mapping access syntax
fix-missing-record-owner Fix a Leo record missing an owner field
fix-transition-signature Fix a Leo transition parameter type
fix-type-mismatch-in-finalize Fix a Leo finalize parameter type
fix-unused-variable Fix an unused Leo local binding
fix-visibility-error Fix Leo parameter visibility
gen-deployment-config Generate Leo deployment configuration comments
gen-finalize-block Generate a Leo finalize block
gen-mapping-definition Generate a Leo mapping definition
gen-nft-contract Generate a minimal Leo NFT contract
gen-program-scaffold Generate a Leo program scaffold
gen-record-definition Generate a Leo record definition
gen-test-scaffold Generate a Leo test scaffold
gen-token-contract Generate a minimal Leo token contract
gen-transition-function Generate a Leo transition scaffold
gen-voting-contract Generate a minimal Leo voting contract
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 simple Leo helper function into direct calls
inline-struct Inline an extracted Leo struct back into its containing struct
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)]
merge-transitions Merge two Leo transitions
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-finalize-block Remove a Leo finalize block
remove-mapping-entry Remove a Leo mapping declaration and direct Mapping access statements
remove-owner-field Remove the owner field from a Leo record
remove-parameter Remove a parameter from a Leo function and direct calls
remove-record-field Remove a field from a Leo record
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 Leo struct field and update syntactic field references
rename-function Rename a Leo function and update direct call targets
rename-mapping Rename a Leo mapping and update Mapping access references
rename-record Rename a Leo record and update type and constructor references
rename-struct Rename a Leo struct and update type and constructor 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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