sql-steward (govern-agents/sql-steward) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.

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C
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69/100
2 months ago

sql-steward

A governed SQL gateway that exposes typed tools to AI agents, compiling safe read-only queries from a semantic layer while blocking PII before execution, supporting SQL Server, Postgres, and SQLite.

→ govern-agents/sql-steward· listed on glama

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Limited view: static analysis for Python is partially covered.

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Who stands behind it

govern-agents

Source: Glama

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Install from

Glama

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// key findings
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configSQL_STEWARD_EMBED_URLexport =http://localhost:11434/api/embeddings # local embeddings for semantic_search
configSQL_STEWARD_EMBED_MODELexport =nomic-embed-text
configSQL_STEWARD_POLICYexport =/path/to/policy.yaml # query-warden second-pass role check
configSQL_STEWARD_ROLEexport =analyst
configSQL_STEWARD_MASKexport =1 # pii-veil masks anything left in results
configSQL_STEWARD_MASK_COLUMNS
configSQL_STEWARD_QUERY_BUDGETexport =200 # hard cap on queries per role per session
configSQL_STEWARD_AUDIT
configSQL_STEWARD_AUDIT_DBexport =logs/steward.db # agent-blackbox audit chain (on if installed)
configSQL_STEWARD_ACTOR
configSQL_STEWARD_LAYERservers.yaml lives wherever you point . Claude Desktop (claude_desktop_config.json):
configSQL_STEWARD_DB_URL"": "postgresql+psycopg://readonly@db.internal/warehouse"
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

7/7 tools missing one or more hints — list_entities (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); describe_entity (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_metrics (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +4 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool inputs are validated

4/7 tool handlers declare input schemas (57%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tool handlers catch errors

Only 1/7 tool handlers wrap calls in try/catch (14%)

Wrap each tool handler body in try/catch and return a structured error response.

Tests exist

No test files found

Add tests that exercise each declared tool.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/pawansingh3889-sql-steward-1vp113)](https://m8ven.ai/mcp/pawansingh3889-sql-steward-1vp113)
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commit: 3397a0dd6328513f869faaca228362a7b1756e2d
code hash: 9a3542db728ec435f469921755d5cb391ade2221863b509154b06eca68050efe
verified: 6/19/2026, 10:53:36 AM
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