# io.github.vschernoff/forge-test-mcp (npm · forge-test-mcp)

Runs Foundry tests and builds; returns compact, structured failures to AI coding agents

- Trust score: 70/100 (medium)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- npm · `forge-test-mcp`: 70/100 (this document), [markdown](https://verifymcp.io/servers/vschernoff-forge-test-mcp/forge-test-mcp.md), [page](https://verifymcp.io/servers/vschernoff-forge-test-mcp/forge-test-mcp)

## Channel facts

- Registry: `npm`
- Package: `forge-test-mcp`
- Version: `0.1.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 0 of 3 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 48/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 9 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 526 tokens (~175/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the io.github.vschernoff/forge-test-mcp server?

io.github.vschernoff/forge-test-mcp runs locally as an npm package, launched with npx -y forge-test-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add vschernoff-forge-test-mcp -- npx -y forge-test-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "vschernoff-forge-test-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "forge-test-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "vschernoff-forge-test-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "forge-test-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add vschernoff-forge-test-mcp -- npx -y forge-test-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "vschernoff-forge-test-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "forge-test-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add vschernoff-forge-test-mcp --command npx --arg -y --arg forge-test-mcp
```

### Hermes

```yaml
mcp_servers:
  vschernoff-forge-test-mcp:
    command: "npx"
    args: ["-y", "forge-test-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "vschernoff-forge-test-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "forge-test-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add vschernoff-forge-test-mcp -t stdio -c npx -a -y forge-test-mcp
```

### Other

```json
{
  "mcpServers": {
    "vschernoff-forge-test-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "forge-test-mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-27 (score 70, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-26 (score 55)

First indexed and scored.

## MCP tools (3)

### `run_tests` (~204 tokens)

Run `forge test` and return a compact summary: counts, and for each failing test its kind (unit, fuzz, invariant, setup), decoded reason, fuzz counterexample or invariant call sequence, and console logs. isError means the tests did not run (compile error, no matching tests, timeout, missing forge, …); never report that as passing.

Input parameters:

- `fuzz_runs` (integer): Override fuzz runs. A value below the project setting is reported as reduced; do not use it to make tests pass.
- `match_contract` (string): Only run test contracts matching this regex.
- `match_path` (string): Only run test files matching this glob.
- `match_test` (string): Only run test functions matching this regex.
- `max_bytes` (integer): Response size budget in bytes (default 8192).
- `traces` (boolean): Attach a decoded trace excerpt to the first 5 failures (a second, text-mode forge run). Default true.

### `explain_failure` (~129 tokens)

Re-run one test at high verbosity and return only that test: its reason, decoded call trace (trimmed to the path to the revert when long), backtrace, logs and, for fuzz or invariant tests, the counterexample. Pass the test name as run_tests reports it, e.g. "BankTest.test_transfer()".

Input parameters:

- `contract` (string): Test contract, if not given in `test`.
- `max_bytes` (integer): Response size budget in bytes (default 8192).
- `test` (string, required): Test function, optionally with its contract: "Contract.test_name()".

### `build` (~96 tokens)

Compile the project with `forge build` and return compiler errors and warnings as structured items (file, line, column, code, message). Unchanged files are not recompiled and forge does not repeat their warnings; pass force: true to recompile everything.

Input parameters:

- `force` (boolean): Recompile everything, so warnings for unchanged files are reported again.
- `max_bytes` (integer): Response size budget in bytes (default 8192).

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/vschernoff-forge-test-mcp/forge-test-mcp#diagnostics

## Score history

- 2026-11-05: 70
- 2026-11-04: 70
- 2026-11-03: 70
- 2026-11-02: 70
- 2026-11-01: 70
- 2026-10-31: 70
- 2026-10-30: 70
- 2026-10-29: 70
- 2026-10-28: 70
- 2026-10-27: 70
- 2026-10-26: 55

## Common questions

### What is the io.github.vschernoff/forge-test-mcp server?

io.github.vschernoff/forge-test-mcp is listed in the public MCP registry as io.github.vschernoff/forge-test-mcp. Runs Foundry tests and builds; returns compact, structured failures to AI coding agents. This page covers its npm package (forge-test-mcp).

### Is the io.github.vschernoff/forge-test-mcp server safe to use?

io.github.vschernoff/forge-test-mcp scores 70 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.vschernoff/forge-test-mcp server expose?

io.github.vschernoff/forge-test-mcp exposes 3 tools: run_tests, explain_failure, build. Their descriptions and schemas cost roughly 429 tokens of context every time the server is loaded.

### Is the io.github.vschernoff/forge-test-mcp server still maintained?

io.github.vschernoff/forge-test-mcp is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the io.github.vschernoff/forge-test-mcp server under?

io.github.vschernoff/forge-test-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

### What did VerifyMCP test on the io.github.vschernoff/forge-test-mcp server?

VerifyMCP ran 15 checks on io.github.vschernoff/forge-test-mcp, covering Malware scan, Known CVEs, Install scripts, Dependency health and 11 more. One item could not be completed, a gap on our side rather than a finding about io.github.vschernoff/forge-test-mcp: Stability. One category scores 0 for that reason, because we only credit what we can confirm. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- npm package: https://www.npmjs.com/package/forge-test-mcp
- Socket report: https://socket.dev/npm/package/forge-test-mcp
- Repository: https://github.com/vschernoff/forge-test-mcp
- Changelog RSS feed: https://verifymcp.io/servers/vschernoff-forge-test-mcp/forge-test-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/vschernoff-forge-test-mcp/forge-test-mcp/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/vschernoff-forge-test-mcp/forge-test-mcp.json
- HTML version of this page: https://verifymcp.io/servers/vschernoff-forge-test-mcp/forge-test-mcp