Guck MCP Server (tillkolter/guck-mcp) 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.

Back to MCP Trust Indexm8ven
C
Emerging
74/100
2 months ago

Guck MCP Server

Guck is a tiny, MCP-first telemetry store for agentic debugging. It provides token-efficient log analytics by capturing JSONL telemetry events and exposing a minimal MCP toolset for fast, filtered queries.

→ tillkolter/guck-mcp· listed on glama

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

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Who stands behind it

tillkolter

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.
configGUCK_CONFIGoptional .guck.local.json) or set GUCK_CONFIG_PATH (or ) to
configGUCK_CONFIG_PATH"": "/path/to/.guck.json"
configGUCK_CWD
configGUCK_DIRat the same absolute log directory via . This creates a single
configGUCK_ENABLEDtrue/false
configGUCK_RUN_IDrun id override
configGUCK_SERVICEservice name
configGUCK_SESSION_IDexport =session-001
configGUCK_STRICT_WRITE_ERRORS
configGUCK_WRAPPEDIf you're using guck wrap, the CLI sets =1 and the SDK
configINIT_CWD
configNEXT_RELEASE_VERSION
configRELEASE_VERSION
// 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

6/6 tools missing one or more hints — guck.mcp_version (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); guck.search (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); guck.search_batch (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +3 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 test coverage

Only 0/6 tools referenced in tests (0%)

Write tests that reference each tool by name so every tool has at least one test.

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 3 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/tillkolter-guck-mcp-11s2kj)](https://m8ven.ai/mcp/tillkolter-guck-mcp-11s2kj)
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commit: 649ddb45369269234243f38668c55b6b4638be2b
code hash: eb6867f6b067d876ea3c127c227c4a48bffff2cc97d7b936dd9cb598039686b9
verified: 6/22/2026, 12:44:10 PM
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