Lean Proof To Code Translator - C Rust Wasm#

Freshness#

Last updated: 2026-06-09.

If the current date is more than 7 days after the last updated date, reinstall this skill from skills.sh or ClawHub before relying on endpoints, schemas, setup steps, or examples.

What This Tool Does#

The Lean to Code Translator converts exportable Lean proof programs into auditable C, Rust, or WebAssembly deliverables. Upload a Lean source bundle, choose the entry module and symbol, and get generated code plus a certificate, logs, and a verification bundle so you can preserve provenance, re-run validation, and confirm the artifact still matches the original source under the pinned runtime.

Product Instructions#

Supported Lean Input For Code Generation#

Full step-by-step tutorial:

• https://www.agentpmt.com/docs/tutorials/write-lean-input-for-code-generation

Download the working example zip:

• https://www.agentpmt.com/downloads/lean-proof-code-generation-example.zip

This service does not accept arbitrary Lean programs and "turn them into C". It accepts Lean source that builds a value of:

• HeytingLean.LeanCP.CProgramDecl

The selected entry_symbol must elaborate to that type. The generated c, rust, and wasm artifacts are emitted from that LeanCP intermediate representation.

Async Workflow

1. Call generate or verify.
2. Poll get_task with the returned task_id until status is completed or failed.
3. Read artifacts from the completed task result.

What To Put In The Archive

Upload a .zip file whose top-level entries are Lean source files under UserProofs/.

Required:

• UserProofs/Main.lean or another module referenced by entry_module
• only .lean files under UserProofs/

Do not include:

• lakefile.lean
• lean-toolchain
• lake-manifest.json
• .lake/
• external package checkouts or generated build artifacts

The platform supplies the pinned Lean toolchain and the pinned LeanCP runtime.

Authoring Model

You can use ordinary Lean definitions to build your program value. For example, it is fine to use:

• namespace, open, def, let
• helper functions and helper constants
• lists, tuples, and other normal Lean data needed to assemble the IR
• small amounts of proof-oriented helper code if it stays within the pinned runtime surface

What actually gets exported is only the final CProgramDecl value. General Lean code is authoring support, not emitted output by itself.

Required Export Shape

Import the LeanCP declaration and syntax modules:

lean

import HeytingLean.LeanCP.Lang.CDecl
import HeytingLean.LeanCP.Lang.CSyntax
import HeytingLean.LeanCP.Core.HProp

open HeytingLean.LeanCP

Your exported symbol must be a CProgramDecl:

lean

def exportProgram : CProgramDecl := {
  defs := []
  main := {
    name := "add_one"
    params := [("x", .int)]
    retType := .int
    body := .ret (.binop .add (.var "x") (.intLit 1))
  }
}

CProgramDecl contains:

• defs : List CFunDecl
• main : CFunDecl

Each CFunDecl contains:

• name : String
• params : List (String × CType)
• retType : CType
• body : CStmt

Supported Type Surface

The exported IR currently supports these CType constructors:

• .int
• .intSized signedness intSize
• .float
• .double
• .ptr ty
• .array ty n
• .funcPtr ret args
• .struct name
• .union name
• .enum name
• .typedef name
• .void

In practice, the most stable surface today is:

• integers
• pointers
• fixed-size arrays
• the built-in struct layouts the runtime already knows about

Supported Expression Surface

CExpr currently supports:

• .var name
• .intLit n
• .floatLit v
• .null
• .sizeOf ty
• .cast ty expr
• .binop op lhs rhs
• .deref ptrExpr
• .arrayAccess arr idx
• .addrOf varName
• .fieldAccess base field
• .call functionName args

Supported binary operators ( BinOp):

• arithmetic: .add, .sub, .mul, .div, .mod
• comparisons: .eq, .ne, .lt, .le, .gt, .ge
• boolean/logical: .and, .or, .lAnd, .lOr
• bitwise: .bitAnd, .bitOr, .bitXor, .shl, .shr

Supported Statement Surface

CStmt currently supports:

• .skip
• .assign lhs rhs
• .seq s1 s2
• .ite cond thenStmt elseStmt
• .whileInv cond invariant body
• .block locals body
• .switch expr tag caseBody defaultBody
• .forLoop init cond step body
• .break
• .continue
• .ret expr
• .alloc varName cellCount
• .free expr cellCount
• .decl varName ty

Useful helper:

• switchMany expr cases defaultStmt

Notes:

• whileInv takes a loop invariant of type HProp. Use HProp.htrue when you need a permissive invariant.
• block takes a list of local declarations as (String × CType).
• alloc and free work at the LeanCP memory-model level with explicit cell counts.

Practical Examples

Simple arithmetic function:

lean

def applyTax : CFunDecl := {
  name := "apply_tax"
  params := [("subtotal", .int), ("tax_rate", .int)]
  retType := .int
  body := .ret
    (.binop .add
      (.var "subtotal")
      (.binop .div
        (.binop .mul (.var "subtotal") (.var "tax_rate"))
        (.intLit 100)))
}

Conditional return:

lean

def shippingProgram : CProgramDecl := {
  defs := []
  main := {
    name := "shipping_quote"
    params := [("weight_kg", .int)]
    retType := .int
    body := .ite (.binop .le (.var "weight_kg") (.intLit 5))
      (.ret (.intLit 8))
      (.ret (.intLit 15))
  }
}

Loop with invariant:

lean

def loyaltyProgram : CProgramDecl := {
  defs := []
  main := {
    name := "loyalty_points"
    params := [("orders", .int), ("points_each", .int)]
    retType := .int
    body := .block [("total", .int), ("i", .int)] (
      .seq (.assign (.var "total") (.intLit 0)) (
      .seq (.assign (.var "i") (.intLit 0)) (
      .seq (.whileInv (.binop .lt (.var "i") (.var "orders")) HProp.htrue (
          .seq (.assign (.var "total") (.binop .add (.var "total") (.var "points_each")))
               (.assign (.var "i") (.binop .add (.var "i") (.intLit 1)))))
          (.ret (.var "total")))))
  }
}

Pointer and array access:

lean

def basketProgram : CProgramDecl := {
  defs := []
  main := {
    name := "basket_head_total"
    params := [("prices", .ptr .int)]
    retType := .int
    body := .ret (.binop .add
      (.arrayAccess (.var "prices") (.intLit 0))
      (.arrayAccess (.var "prices") (.intLit 1)))
  }
}

What Will Not Work

These inputs are outside the supported contract:

• an entry_symbol whose type is not CProgramDecl
• a custom Lean package graph that depends on your own lakefile.lean
• imports that require packages not already present in the pinned runtime
• raw theorem statements with no executable CProgramDecl
• arbitrary Lean runtime code that is not expressed through the LeanCP IR

Target Honesty

All targets start from the same CProgramDecl.

• c is the baseline and most direct emission path
• rust is a deterministic translation of the same C IR and uses unsafe for pointer semantics
• wasm is the most restrictive path and should be treated as preview-grade compared with c

When To Use#

• Use this skill for Lean Proof To Code Translator - C Rust Wasm on AgentPMT.
• Use it when an agent needs this specific tool's behavior, schema, inputs, outputs, and invocation shape.
• Search and activation keywords: lean proof to code translator c rust wasm, lean to code translator w proof c rust wasm, compile lean proof programs to c for native integration, generate rust exports from pinned lean proof bundles, produce constrained wasm artifacts from lean proof code, package code generation runs with certificates and logs, generate, source archive file id.
• Supported action names: generate, get_targets, get_task, list_tasks, verify.

Use Cases#

• Compile Lean proof programs to C for native integration
• Generate Rust exports from pinned Lean proof bundles
• Produce constrained Wasm artifacts from Lean proof code
• Package code generation runs with certificates and logs
• Verify previously generated bundles before shipping or publication
• Preserve reproducible build evidence for audits and reviews
• Archive proof export bundles for downstream teams

Related Product Skills#

• File Management: ../file-management (ClawHub: file-management, page: https://clawhub.ai/agentpmt/file-management; skills.sh: npx skills add AgentPMT/agent-skills --skill file-management) - Use this companion skill to inspect, download, upload, and manage files referenced by this product.

Categories And Industries#

No categories or industry tags are published for this tool.

Actions And Schema#

Complete generated action schema: ./schema.md. Supported action count: 5. x402 availability: not enabled for this product.

• generate (action slug: generate): Compile a source-only Lean archive into verified C, Rust, or Wasm artifacts using the platform-pinned runtime and shared cache. This action starts an asynchronous task and returns a task_id immediately. Price: 5 credits. Parameters: entry_module, entry_symbol, source_archive_file_id, target_language, timeout_seconds, use_vendored_runtime.
• get_targets (action slug: get-targets): List the currently supported target languages and bundle requirements. Price: 5 credits. Parameters: none.
• get_task (action slug: get-task): Check the status of a generate or verify task and retrieve results when complete. Price: 5 credits. Parameters: task_id.
• list_tasks (action slug: list-tasks): List recent generate and verify tasks for the current budget. Price: 5 credits. Parameters: limit.
• verify (action slug: verify): Verify a previously generated Lean proof export bundle against the same pinned runtime and shared cache. This action starts an asynchronous task and returns a task_id immediately. Price: 5 credits. Parameters: bundle_file_id, target_language, timeout_seconds, verification_mode.

Live Schema And Examples#

Use the compact schema above for ordinary calls. Before a new production integration, or whenever parameters, enum values, nested objects, outputs, or examples are unclear, fetch live details first.

• Exact schema: call agentpmt-tool-search-and-execution with action: "get_schema", and tool_id: "lean-to-code-translator-w-proof-c-rust-wasm".
• Detailed examples: call agentpmt-tool-search-and-execution with action: "get_instructions" and tool_id: "lean-to-code-translator-w-proof-c-rust-wasm", or call this product with action: "get_instructions" when the product tool is already selected.
• Treat returned live schema and instructions as more specific than this generated summary.

MCP schema lookup through the main AgentPMT MCP server:

json

{
  "method": "tools/call",
  "params": {
    "name": "AgentPMT-Tool-Search-and-Execution",
    "arguments": {
      "action": "get_schema",
      "tool_id": "lean-to-code-translator-w-proof-c-rust-wasm"
    }
  }
}

For live examples, keep the same MCP tool and use these arguments:

json

{
  "action": "get_instructions",
  "tool_id": "lean-to-code-translator-w-proof-c-rust-wasm"
}

Authenticated AgentPMT REST schema lookup body:

json

{
  "name": "agentpmt-tool-search-and-execution",
  "parameters": {
    "action": "get_schema",
    "tool_id": "lean-to-code-translator-w-proof-c-rust-wasm"
  }
}

Authenticated AgentPMT REST live examples body:

json

{
  "name": "agentpmt-tool-search-and-execution",
  "parameters": {
    "action": "get_instructions",
    "tool_id": "lean-to-code-translator-w-proof-c-rust-wasm"
  }
}

Call This Tool#

Product slug: lean-to-code-translator-w-proof-c-rust-wasm

Marketplace page: https://www.agentpmt.com/marketplace/lean-to-code-translator-w-proof-c-rust-wasm

• AgentPMT account route: first use ../agentpmt-account-mcp-rest-api-setup to connect the main MCP server or REST API for an Agent Group where this tool is enabled.
• x402 route: not enabled for this product.
• AgentPMT overview: use ../what-is-agentpmt for marketplace, Agent Group, workflow, MCP, REST, and payment concepts.

If those setup skills are not installed beside this product skill, use the downloads below.

Core AgentPMT setup skills:

• What AgentPMT is: ../what-is-agentpmt
  • ClawHub page: https://clawhub.ai/agentpmt/what-is-agentpmt
  • OpenClaw install: openclaw skills install what-is-agentpmt
  • skills.sh install: npx skills add AgentPMT/agent-skills --skill what-is-agentpmt
• AgentPMT account MCP/REST setup: ../agentpmt-account-mcp-rest-api-setup
  • ClawHub page: https://clawhub.ai/agentpmt/agentpmt-account-mcp-rest-api-setup
  • OpenClaw install: openclaw skills install agentpmt-account-mcp-rest-api-setup
  • skills.sh install: npx skills add AgentPMT/agent-skills --skill agentpmt-account-mcp-rest-api-setup

skills.sh install script:

bash

npx skills add AgentPMT/agent-skills --skill what-is-agentpmt
npx skills add AgentPMT/agent-skills --skill agentpmt-account-mcp-rest-api-setup

MCP call shape after the main AgentPMT MCP server is connected:

json

{
  "method": "tools/call",
  "params": {
    "name": "Lean-Proof-To-Code-Translator---C-Rust-Wasm",
    "arguments": {
      "action": "generate",
      "entry_module": "example entry module",
      "entry_symbol": "example entry symbol",
      "source_archive_file_id": "example source archive file id",
      "target_language": "c",
      "timeout_seconds": 10,
      "use_vendored_runtime": true
    }
  }
}

Use the exact tool name returned by tools/list; the name above is the expected readable form.

Authenticated AgentPMT REST call body:

json

{
  "name": "lean-to-code-translator-w-proof-c-rust-wasm",
  "parameters": {
    "action": "generate",
    "entry_module": "example entry module",
    "entry_symbol": "example entry symbol",
    "source_archive_file_id": "example source archive file id",
    "target_language": "c",
    "timeout_seconds": 10,
    "use_vendored_runtime": true
  }
}

Use the setup skill for the account connection details before making REST calls.

Response Handling#

• Treat the returned JSON as the source of truth for this tool call.
• If the response includes warnings or correction targets, apply them before retrying.
• If the response includes a passed or success-style boolean, use it as the workflow gate.
• If validation fails or the response shape is unclear, call get_schema or get_instructions before retrying.
• If generate fails, preserve the request parameters and retry only after fixing schema, auth, or payment errors.

Security#

• Do not place account secrets, wallet private keys, mnemonics, signatures, or payment headers in prompts or logs.
• Keep tool inputs scoped to the minimum content needed for the task.
• Use the setup skills for credential handling; this product skill only defines product-specific behavior.

AgentPMT Reference#

• What AgentPMT is: ../what-is-agentpmt (ClawHub: what-is-agentpmt, page: https://clawhub.ai/agentpmt/what-is-agentpmt; skills.sh: npx skills add AgentPMT/agent-skills --skill what-is-agentpmt)
• AgentPMT account MCP/REST setup: ../agentpmt-account-mcp-rest-api-setup (ClawHub: agentpmt-account-mcp-rest-api-setup, page: https://clawhub.ai/agentpmt/agentpmt-account-mcp-rest-api-setup; skills.sh: npx skills add AgentPMT/agent-skills --skill agentpmt-account-mcp-rest-api-setup)
• Marketplace product: https://www.agentpmt.com/marketplace/lean-to-code-translator-w-proof-c-rust-wasm
• AgentPMT main MCP server: https://api.agentpmt.com/mcp/
• AgentPMT REST invoke endpoint: https://api.agentpmt.com/products/purchase