io.github.faulkj/legion

io.github.faulkj/legionv0.8.0AI & LLMs

MCP-native LLM councils for debates, juries, blind panels, refinement, and custom deliberation.

The current version, v0.8.0, was published to the official MCP registry on 2026-10-06. It is distributed as legion-mcp on npm, filed under AI & LLMs by this index, and declares 11 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.

In-path gate · all MCP tools

Using io.github.faulkj/legion in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

REVIEWstatus: PARTIALfresh until 2026-10-26 17:03 UTC

screened 2026-08-30tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidence“No malicious instructions”via static_description

Limits of this verdict

- Semantic screen only - the deterministic conformance probe has not run on this server
- Confidence is reported but not yet calibrated (v1)
- Screen reads the tool description, not the live behavior
- advisory
- registry description only no input schema
- screen model 8b
- Still current: the description we screened is unchanged, re-checked against the registry
- The registry listing (version, packages, links) changed after this screen ran - the description we assessed did not

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Test a description on the public screen → It is a separate check from the verdict above, so the two can differ.

That verdict was true at screening time (snapshot 2026-10-19).

Contracts can change after screening, with no version bump. The gate pins io.github.faulkj/legion’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Cite this record

People vet a server before wiring it in. One line on your project site or docs answers that with an independent record: screening verdict, registry provenance, contract drift history. It stays current as new screens and drift events land.

Markdown

[Independent trust record for io.github.faulkj/legion](https://mcpindex.ai/server/io-github-faulkj-legion) - screening verdict, registry provenance, and contract drift monitoring.

HTML

<a href="https://mcpindex.ai/server/io-github-faulkj-legion">Independent trust record for io.github.faulkj/legion</a> - screening verdict, registry provenance, and contract drift monitoring.

Embed this badge

A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.

Markdown

[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-faulkj-legion)](https://mcpindex.ai/server/io-github-faulkj-legion)

HTML

<a href="https://mcpindex.ai/server/io-github-faulkj-legion"><img src="https://mcpindex.ai/api/v1/badge/io-github-faulkj-legion" alt="mcpindex verdict" height="20" /></a>

Environment variables

MCP_TRANSPORT

required

Run the installed package over MCP stdio (the binary defaults to HTTP).

DEFAULT_BASE_URL

Default OpenAI Responses-compatible API root for model files that omit baseUrl.

DEFAULT_API_KEY

secret

Default provider or gateway key for model files that omit apiKey.

ALLOW_NO_MODELS

required

Boot without any config/models/*.json. The package ships only key-free examples, which the scanner ignores, so this must stay true until a real model file exists beside the working directory.

OPENAI_API_KEY

secret

Optional. A model file's apiKey may be "env:VAR" to read the key from an environment variable named VAR at startup; name those variables here as needed. The bundled gpt example reads this one.

MAX_ROUNDS

Maximum discussion rounds accepted by a council run.

TOKEN_BUDGET

Optional soft cumulative token budget for a council run.

DYNAMIC_ROLES

Allow callers to define ad-hoc council roles inline.

LOG_LEVEL

Logging verbosity. Logs are written to stderr for stdio safety.

ASYNC_TOOLS

Run councils in the background: council tools return a job handle and poll/cancel tools are exposed. Jobs live in process memory only.

TRUST_PROXY_AUTH

Bind async jobs to the caller named by X-MS-CLIENT-PRINCIPAL-* headers. Only safe behind an ingress that strips client-supplied copies.

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

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Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "legion": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "legion-mcp"
      ],
      "env": {
        "MCP_TRANSPORT": "<mcp_transport>",
        "DEFAULT_BASE_URL": "<default_base_url>",
        "DEFAULT_API_KEY": "<your-default_api_key>",
        "ALLOW_NO_MODELS": "<allow_no_models>",
        "OPENAI_API_KEY": "<your-openai_api_key>",
        "MAX_ROUNDS": "5",
        "TOKEN_BUDGET": "<token_budget>",
        "DYNAMIC_ROLES": "true",
        "LOG_LEVEL": "info",
        "ASYNC_TOOLS": "false",
        "TRUST_PROXY_AUTH": "false"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "legion": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "legion-mcp"
      ],
      "env": {
        "MCP_TRANSPORT": "<mcp_transport>",
        "DEFAULT_BASE_URL": "<default_base_url>",
        "DEFAULT_API_KEY": "<your-default_api_key>",
        "ALLOW_NO_MODELS": "<allow_no_models>",
        "OPENAI_API_KEY": "<your-openai_api_key>",
        "MAX_ROUNDS": "5",
        "TOKEN_BUDGET": "<token_budget>",
        "DYNAMIC_ROLES": "true",
        "LOG_LEVEL": "info",
        "ASYNC_TOOLS": "false",
        "TRUST_PROXY_AUTH": "false"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y -- legion-mcp

Claude Code (claude mcp add)

claude mcp add --scope user legion -- npx -y -- legion-mcp

Gemini CLI (gemini mcp add)

gemini mcp add -s user legion npx -y -- legion-mcp

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-faulkj-legion

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v0.8.0
category: AI & LLMs
verdict expires: 2026-10-26
quality: 80 / 100
operator: faulkj

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 972,115). Verify it yourself.

Links

Repository →