--- title: "LeanCopilot vs agent-guardrails-template" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/lean-dojo-leancopilot-vs-thearchitectit-agent-guardrails-template" tools: ["lean-dojo-leancopilot", "thearchitectit-agent-guardrails-template"] --- # LeanCopilot vs agent-guardrails-template *GraphCanon updated Aug 25, 2026* ## Verdict Pick LeanCopilot if a system that leverages large language models for theorem proving in the Lean environment; pick agent-guardrails-template if agent-guardrails-template is designed to ensure that AI agents operate within defined boundaries and follow safety guidelines. [LeanCopilot](https://leandojo.org/leancopilot.html) reports 1.3k GitHub stars, 127 forks, and 0 open issues, last pushed Aug 22, 2026. [agent-guardrails-template](https://github.com/TheArchitectit/agent-guardrails-template) has 72 stars, 3 forks, and 0 open issues, last pushed Jul 30, 2026. Figures are from public GitHub metadata via [LeanCopilot's repository](https://github.com/lean-dojo/LeanCopilot) and [agent-guardrails-template's repository](https://github.com/TheArchitectit/agent-guardrails-template). | | [LeanCopilot](/tools/lean-dojo-leancopilot.md) | [agent-guardrails-template](/tools/thearchitectit-agent-guardrails-template.md) | | --- | --- | --- | | Tagline | LLMs as Copilots for Theorem Proving in Lean | Template repository with AI agent guardrails and safety protocols | | Stars | 1,314 | 72 | | Forks | 127 | 3 | | Open issues | 0 | 0 | | Language | C++ | Go | | Adopt for | A system that leverages large language models for theorem proving in the Lean environment. | agent-guardrails-template is designed to ensure that AI agents operate within defined boundaries and follow safety guidelines. | | Persona | - | - | | Runtime | - | - | | License | MIT | BSD-3-Clause | | Categories | AI Agents, LLM Frameworks | AI Agents, Evaluation & Observability | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [LeanCopilot](/tools/lean-dojo-leancopilot.md) | [agent-guardrails-template](/tools/thearchitectit-agent-guardrails-template.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Active (82%) | | Days since push | 2d | 10d | | Stars delta | +11 (30d) | Unknown | | Open issues delta | -5 (30d) | Unknown | | Owner type | Organization | User | | Full report | [trust report](/tools/lean-dojo-leancopilot/trust.md) | [trust report](/tools/thearchitectit-agent-guardrails-template/trust.md) | ## Decision facts: LeanCopilot - **Adopt for:** A system that leverages large language models for theorem proving in the Lean environment. ## Decision facts: agent-guardrails-template - **Adopt for:** agent-guardrails-template is designed to ensure that AI agents operate within defined boundaries and follow safety guidelines. ## Choose when ### Choose LeanCopilot if… - LeanCopilot is primarily C++; agent-guardrails-template is Go. - License: LeanCopilot is MIT, agent-guardrails-template is BSD-3-Clause. - Tags unique to LeanCopilot: formal-mathematics, lean, lean4, llm-inference. - Also covers LLM Frameworks. - Need support with formal proof development in Lean or Lean4 specifically ### Choose agent-guardrails-template if… - agent-guardrails-template is primarily Go; LeanCopilot is C++. - License: agent-guardrails-template is BSD-3-Clause, LeanCopilot is MIT. - Tags unique to agent-guardrails-template: ai-agents, claude, gemini, gpt. - Also covers Evaluation & Observability. - When developing an AI agent where safety and controlled operations are paramount for LLMs like Claude, GPT, or Gemini. ## When NOT to use LeanCopilot - Working exclusively in theorem provers other than Lean or Lean4 - Looking for general-purpose AI programming assistant beyond Lean's domain ## When NOT to use agent-guardrails-template - If your project does not require strict operational boundaries and focuses on open-ended exploration over controlled operation. - When working exclusively outside environments where LLMs like Claude, GPT, or Gemini are employed; the template may not cover unique scenarios. ## Common questions ### What is the difference between LeanCopilot and agent-guardrails-template? LeanCopilot: LLMs as Copilots for Theorem Proving in Lean. agent-guardrails-template: Template repository with AI agent guardrails and safety protocols. See the comparison table for live GitHub stats and shared categories. ### When should I choose LeanCopilot over agent-guardrails-template? Choose LeanCopilot over agent-guardrails-template when LeanCopilot is primarily C++; agent-guardrails-template is Go; License: LeanCopilot is MIT, agent-guardrails-template is BSD-3-Clause; Tags unique to LeanCopilot: formal-mathematics, lean, lean4, llm-inference; Also covers LLM Frameworks; Need support with formal proof development in Lean or Lean4 specifically. ### When should I choose agent-guardrails-template over LeanCopilot? Choose agent-guardrails-template over LeanCopilot when agent-guardrails-template is primarily Go; LeanCopilot is C++; License: agent-guardrails-template is BSD-3-Clause, LeanCopilot is MIT; Tags unique to agent-guardrails-template: ai-agents, claude, gemini, gpt; Also covers Evaluation & Observability; When developing an AI agent where safety and controlled operations are paramount for LLMs like Claude, GPT, or Gemini. ### When should I avoid LeanCopilot? Working exclusively in theorem provers other than Lean or Lean4 Looking for general-purpose AI programming assistant beyond Lean's domain ### When should I avoid agent-guardrails-template? If your project does not require strict operational boundaries and focuses on open-ended exploration over controlled operation. When working exclusively outside environments where LLMs like Claude, GPT, or Gemini are employed; the template may not cover unique scenarios. ### Is LeanCopilot or agent-guardrails-template more popular on GitHub? LeanCopilot has more GitHub stars (1,314 vs 72). Stars measure visibility, not whether either tool fits your constraints. ### Are LeanCopilot and agent-guardrails-template open source? Yes - both are open-source projects on GitHub (LeanCopilot: MIT, agent-guardrails-template: BSD-3-Clause). ### Where can I find alternatives to LeanCopilot or agent-guardrails-template? GraphCanon lists graph-backed alternatives at [LeanCopilot alternatives](/tools/lean-dojo-leancopilot/alternatives) and [agent-guardrails-template alternatives](/tools/thearchitectit-agent-guardrails-template/alternatives) ([LeanCopilot markdown twin](/tools/lean-dojo-leancopilot/alternatives.md), [agent-guardrails-template markdown twin](/tools/thearchitectit-agent-guardrails-template/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/lean-dojo-leancopilot-vs-thearchitectit-agent-guardrails-template.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, LeanCopilot or agent-guardrails-template? LeanCopilot: Very active. agent-guardrails-template: Active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for LeanCopilot and agent-guardrails-template? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [LeanCopilot trust report](/tools/lean-dojo-leancopilot/trust); [agent-guardrails-template trust report](/tools/thearchitectit-agent-guardrails-template/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=lean-dojo-leancopilot`](/api/graphcanon/graph?tool=lean-dojo-leancopilot) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_