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Syl Guardian

Registre officiel IA et agents

Causal guardrail: pass/caution/hold verdict on a causal claim before an agent acts.

Code source Site web Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http syl-guardian 'https://guardian.sylai.io/mcp' --header 'X-API-Key: <Your Syl Guardian API key (get a trial key at https://sylai.io/guardian).>'
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "syl-guardian": {
            "type": "http",
            "url": "https://guardian.sylai.io/mcp",
            "headers": {
                "X-API-Key": "<Your Syl Guardian API key (get a trial key at https://sylai.io/guardian).>"
            }
        }
    }
}

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. Syl Guardian MCP
  2. Connect
  3. Tool: guardian_review
  4. Support
  5. License

Syl Guardian MCP

Syl Guardian is a causal guardrail for AI agents. Before an agent acts on a claim like "ad spend drove new customers", Guardian checks it against your data and returns a pass, caution or hold verdict, with the naive correlation versus the confounder-adjusted causal effect, a confidence score and a plain-English recommendation.

All numbers are deterministic statistics. They are never generated by an LLM; only the interpretation prose may be AI-written.

This repository holds the public listing metadata and connection instructions for the hosted Guardian MCP server. Guardian itself is a hosted service.

Connect

Claude Code:

claude mcp add --transport http syl-guardian https://guardian.sylai.io/mcp \
  --header "X-API-Key: <your key>"

Claude Desktop (via mcp-remote):

{
  "mcpServers": {
    "syl-guardian": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://guardian.sylai.io/mcp",
               "--header", "X-API-Key:${SYL_API_KEY}"],
      "env": { "SYL_API_KEY": "<your key>" }
    }
  }
}

Then ask your agent: "Use guardian_review on this data: did ad_spend cause new_customers? Treat seasonality as a confounder."

Listing the tools does not require a key. A key is checked when guardian_review is called, and each review counts against your plan or trial quota.

Tool: guardian_review

Sanity-checks a causal claim before an agent acts on it.

ArgumentDescription
cause, effectRequired. Column names for the claim.
csv or dataDataset as CSV text or a list of row objects (exactly one).
known_confoundersOptional. Columns to adjust for; otherwise discovered automatically.
contextOptional business context, e.g. "Q3 promo evaluation".
units, stepDisplay-only unit hints; a treatment step to restate the effect in business terms.
time_col, adstock, seTime-series handling: row ordering, carryover effects, standard-error flavor.
test_designtrue or options. Also returns how long a spend-cut test needs to run.

The result includes a text summary (verdict, recommended action, effect versus correlation, interpretation) and the full structured response. Bad input, auth failures and quota errors come back as MCP tool errors with a descriptive message.

Support

Questions or issues: https://sylai.io or connor@sylai.io.

License

The files in this repository (metadata and documentation) are MIT licensed; see LICENSE. The Syl Guardian service is proprietary.

Questions fréquentes

Qu'est-ce que Syl Guardian ?

Causal guardrail: pass/caution/hold verdict on a causal claim before an agent acts.

Comment installer Syl Guardian ?

Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport http syl-guardian 'https://guardian.sylai.io/mcp' --header 'X-API-Key: <Your Syl Guardian API key (get a trial key at https://sylai.io/guardian).>'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour Syl Guardian ?

Oui. Il attend X-API-Key, à renseigner dans sa configuration.

Syl Guardian est-il open source ?

Oui. Son code est sur GitHub sous licence MIT.

Qui maintient Syl Guardian ?

Il est publié par connor274. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.