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Guidance Lark MCP server

by guidance-ai·io.github.guidance-ai/guidance-lark-mcp·v0.1.2
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Validate and test llguidance grammars with batch testing and documentation

B77/100grade B
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Safety scan
B77/100

full report

Adoption
New

0 stars21 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Guidance Lark tools (4, 1 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • generate_with_grammar

    Generate text using an OpenAI model constrained by an llguidance grammar. Uses the OpenAI Responses API with a custom tool grammar format, so output is guaranteed to conform to the grammar. Use this to test how well a grammar guides actual LLM generation.

  • get_llguidance_documentation

    Fetch the llguidance grammar syntax documentation.

  • run_batch_validation_testswrite action

    Run batch validation tests from a JSON file against an llguidance grammar. Test file should contain array of {input, should_parse, description?} objects. Returns high-level statistics (total, passed, failed, success_rate) and detailed information for failed tests.

  • validate_grammar

    Validate llguidance grammar completeness and consistency using llguidance's built-in validator. Returns validation result with any errors or warnings.

Public scan report

scanner v0.1.10 · 2026-09-28 · same rubric, same numbers if you re-run it

no findings
  • Code scan4 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 206 days ago4/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 77/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Guidance Lark compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
77/100
higher than 50% of 48,255 servers
Tools
4
the typical server has 7
Tools that change things
25%
typical: 0%. Fewer write tools means less an agent can break
Downloads a week
21
more than 8% of 12,191 servers with a package

What its tools let an agent do: 2 read · 1 create · 1 run or deploy

Install Guidance Lark in Claude Code, Cursor or VS Code

claude mcp add guidance-lark-mcp -- uvx guidance-lark-mcp
Add to Cursor

Guidance Lark: common questions

Is Guidance Lark MCP server safe?
Mostly: it is graded B (77/100). Read the Guidance Lark safety report
How do I install Guidance Lark?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Guidance Lark need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Guidance Lark maintained?
The last commit was 243 days ago (2026-03-06). The latest release is v0.1.2.
What can I use instead of Guidance Lark?
Servers from other publishers that do the same job: Keploy MCP server.
How does Guidance Lark compare with other MCP servers?
safety score 77/100 (higher than 50% of 48,255 servers); tools 4 (the typical server has 7); tools that change things 25% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Guidance Lark

Same job from other publishers: the closest match first, then the best rated.

  • Keploy
    End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic.
    A