osnovaCAUTION
Deterministic code map for AI coding agents: a tree-sitter symbol and call graph served over MCP and a CLI, with no embeddings, network or telemetry.
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
[](https://getosnova.dev) [](https://www.npmjs.com/package/@getdomovoi/osnova) [](LICENSE) [](https://github.com/getdomovoi/osnova/actions/workflows/ci.yml) [](package.json) [](https://m8ven.ai/mcp/getdomovoi-osnova-2032ih)
A deterministic code map for AI coding agents. Osnova indexes a repository into a symbol and call graph with tree-sitter, then serves it to any MCP client or from the command line. Same input, same output, byte for byte. No embeddings, no telemetry, and no network connection unless you type osnova update-check. Twenty languages, seven of them (TypeScript, JavaScript, Python, Go, Rust, Java, C#) with deep adapters.
6e5d7632a0beOBSERVED · 2026-10-11Connect
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. Replace the environment placeholders with a token scoped to the least it needs.
claude mcp add osnova -- npx -y @getdomovoi/[email protected] mcp
Trust audit
CAUTIONgrade D · trust 70/100 Install with care. The audit found things worth knowing before you trust its output.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | WARN |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- declared (9 observation(s))
- Network
- declared (6 observation(s))
- Shell
- declared (5 observation(s))
- Dependencies
- not all pinned
- Secrets in source
- found
Findings (22)
router = getattr(importlib.import_module(module_name), attribute)
targets = await fetch(`http://127.0.0.1:${port}/json/list`).then((r) => r.json()).catch(() => undefined);await fs.writeFile(path.join(busy, "owner.json"), JSON.stringify({ pid: process.pid, host: os.hostname(), token: "00000000-0000-4000-8000-000000000001" }));await fs.writeFile(path.join(lock, "owner.json"), JSON.stringify({ pid: exited.pid, host: os.hostname(), token: "00000000-0000-4000-8000-000000000000" }));const owner = JSON.stringify({ pid: process.pid, host: os.hostname(), token: "00000000-0000-4000-8000-000000000001" });const foreign = JSON.stringify({ pid: process.pid, host: os.hostname(), token: "00000000-0000-4000-8000-00000000abcd" });cross-file-payload-experiment-2026-09-15.json
install -d -m 700 ~/.ssh
printf '%s\n' "$DEPLOY_KEY" > ~/.ssh/plugin_deploy_key
chmod 600 ~/.ssh/plugin_deploy_key
echo "github.com ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOMqqnkVzrm0SdG6UOoqKLsabgH5C9okWi0dh2l9GKJl" > ~/.ssh/known_hosts
run: rm -f ~/.ssh/plugin_deploy_key
const dist = path.join(path.dirname(fileURLToPath(import.meta.url)), "../../dist/index.js");
import { scanFiles } from "../../src/index/scan.js";const repository = fileURLToPath(new URL("../../", import.meta.url));import { buildIndex, applyChanges, freshness, ask, callersDetailed, findTextDetailed, serializeArtifact } from "../../src/index.js";import { artifactPathFor, saveArtifact } from "../../src/index/serialize.js";it("lets the Cloudflare beacon load and report to this site", () => {"CONSTANT_VALUE Σigma finalΣ",
@modelcontextprotocol/sdk, ignore, @eslint/js, @types/node, eslint, tsup, tsx, typescript
assets/demo/film.gif
Gates applied: no_behavioural_pass.
6e5d7632a0befull audit observations/trust-audit/mcp-server/getdomovoi__osnova.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-11 | 6e5d7632a0be | CAUTION | D | 70 | first audit |
Questions
What is the osnova MCP server?
Deterministic code map for AI coding agents: a tree-sitter symbol and call graph served over MCP and a CLI, with no embeddings, network or telemetry.
Is osnova safe to connect to an agent?
With care. The audit graded it D (70/100) and found 22 things worth knowing before you trust this server, listed below with the exact line each was found on.
What credentials does osnova need?
It reads TYPESAFE_API_KEY from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.
How does osnova run?
It speaks stdio, so it runs as a local process your client starts. It is published on npm as getosnova-site at 0.12.0.
How current is this page?
The grade is for one exact copy of the source (6e5d7632a0be), read on 2026-10-11. The repository is watched and re-audited when it changes.