Atlas / MCP servers / etiennechollet / Ontomics

OntomicsSAFE

mcp/etiennechollet/ontomics

Extract domain knowledge from codebases to reduce LLM token consumption by 20x and time in agentic search by 10x — gathers and makes concepts, naming conventions, and vocabulary queryable via MCP.

Verdict
SAFE
Grade
B
Trust score
89 /100
Exposed tools
—
Transport
stdio
License
MIT
Stars
43
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

[](https://registry.modelcontextprotocol.io/) [](https://glama.ai/mcp/servers/EtienneChollet/ontomics)

ontomics gives any coding agent instant knowledge of your codebase. One tool call instead of 19. ~20x fewer tokens.

https://github.com/user-attachments/assets/01afa8a0-1bc2-4686-94d7-965fef7610c3

Visualization for the voxelmorph project -- a library for unsupervised learning in image registration

Benchmark

Tested with Claude Sonnet — same question, with and without ontomics.

"What does 'transform' mean in this codebase?" on voxelmorph (full transcript):

"What are the main domain concepts in this codebase?" on ScribblePrompt ([full transcript](doc/benchma

Read from source at commit 2930b56868d9OBSERVED · 2026-10-08
02

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.

claude-code (npm)
claude mcp add ontomics -- npx -y @ontomics/[email protected]
03

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codePASS
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
declared (2 observation(s))
Shell
none-observed
Dependencies
pinned
Secrets in source
none-found

Findings (2)

LOWSupply chain · prompt.pipe_to_shell · CWE-829, CWE-1357
README.md:90
curl --proto '=https' --tlsv1.2 -LsSf https://github.com/EtienneChollet/ontomics/releases/latest/download/ontomics-installer.sh | sh
LOWInventory / provenance · mcp.no_tools_extracted · CWE-1104
server.json
Why it matters. the tool list is enumerated at runtime by tools/list, not declared in source
Fix. the page says so rather than showing an empty table

Gates applied: no_behavioural_pass.

Audited 2026-10-08 · audit v0.4.1 · source sha 2930b56868d9full audit observations/trust-audit/mcp-server/etiennechollet__ontomics.json · Report an issue / request a re-scan
04

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-082930b56868d9SAFEB89first audit
05

Questions

What is the Ontomics MCP server?

Extract domain knowledge from codebases to reduce LLM token consumption by 20x and time in agentic search by 10x — gathers and makes concepts, naming conventions, and vocabulary queryable via MCP.

Is Ontomics safe to connect to an agent?

The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.

What credentials does Ontomics need?

No credential environment variables were found in its source, so it appears to need none.

How does Ontomics run?

It speaks stdio, so it runs as a local process your client starts. It is published on npm as @ontomics/ontomics at 0.3.1.

How current is this page?

The grade is for one exact copy of the source (2930b56868d9), read on 2026-10-08. The repository is watched and re-audited when it changes.

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